Route overview: Saint Louis to Boston (BOS) flight deals

Saint Louis (STL) to Boston (BOS), Nov 21, 2026: round trips from $290, one way from $155

Saint Louis (STL) to Boston (BOS), Nov 21, 2026: round trips from $290, one way from $155 on Axel, checked Nov 11, 2026. Lowest published fares: $290 round trip, Axel-exclusive, United Airlines, 1 stop, Nov 21–22, 2026; $155 one way, Axel-exclusive, United Airlines, 1 stop, Nov 21, 2026; 1 adult, economy, checked Nov 11, 2026.

STL → BOS1 adulteconomyOne way and round trips

30 flight options · 2 airlines

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One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

November 2026

Nov 21, 2026 · One wayUnited AirlinesUp to 1 stop each way$155.00

Nov 21, 2026 · One waySouthwest AirlinesNonstop$160.00

Nov 21, 2026 – Nov 22, 2026 · 1 nightUnited AirlinesUp to 1 stop each way$290.00

Nov 21, 2026 – Nov 22, 2026 · 1 nightSouthwest AirlinesNonstop$300.00

Hotels for these nights (Nov 21–22, 2026 · 1 night · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge $158 a night · 4★ Seaport Hotel® Boston $222 a night · 5★ Omni Boston Hotel at the Seaport $259 a night

Nov 21, 2026 – Nov 23, 2026 · 2 nightsUnited AirlinesUp to 1 stop each way$290.00

Nov 21, 2026 – Nov 23, 2026 · 2 nightsSouthwest AirlinesNonstop$300.00

Hotels for these nights (Nov 21–23, 2026 · 2 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $137 a night, $273 for 2 nights · 4★ Seaport Hotel® Boston $202 a night, $403 for 2 nights · 5★ Omni Boston Hotel at the Seaport $222 a night, $443 for 2 nights

Nov 21, 2026 – Nov 24, 2026 · 3 nightsUnited AirlinesUp to 1 stop each way$340.75

Nov 21, 2026 – Nov 24, 2026 · 3 nightsSouthwest AirlinesNonstop$352.50

Hotels for these nights (Nov 21–24, 2026 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $128 a night, $383 for 3 nights · 4★ Seaport Hotel® Boston $195 a night, $585 for 3 nights · 5★ Omni Boston Hotel at the Seaport $209 a night, $627 for 3 nights

Nov 21, 2026 – Nov 25, 2026 · 4 nightsUnited AirlinesUp to 1 stop each way$340.75

Nov 21, 2026 – Nov 25, 2026 · 4 nightsSouthwest AirlinesNonstop$352.50

Hotels for these nights (Nov 21–25, 2026 · 4 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $123 a night, $493 for 4 nights · 4★ Seaport Hotel® Boston $191 a night, $764 for 4 nights · 5★ Omni Boston Hotel at the Seaport $203 a night, $811 for 4 nights

Nov 21, 2026 – Nov 26, 2026 · 5 nightsUnited AirlinesUp to 1 stop each way$340.75

Nov 21, 2026 – Nov 26, 2026 · 5 nightsSouthwest AirlinesNonstop$352.50

Hotels for these nights (Nov 21–26, 2026 · 5 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $122 a night, $608 for 5 nights · 4★ Hyatt Regency Boston/Cambridge $183 a night, $913 for 5 nights · 5★ Omni Boston Hotel at the Seaport $199 a night, $995 for 5 nights

Nov 21, 2026 – Nov 27, 2026 · 6 nightsUnited AirlinesUp to 1 stop each way$340.75

Nov 21, 2026 – Nov 27, 2026 · 6 nightsSouthwest AirlinesNonstop$352.50

Hotels for these nights (Nov 21–27, 2026 · 6 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $124 a night, $742 for 6 nights · 4★ Hyatt Regency Boston/Cambridge $177 a night, $1,061 for 6 nights · 5★ Omni Boston Hotel at the Seaport $197 a night, $1,179 for 6 nights

Nov 21, 2026 – Nov 28, 2026 · 7 nightsUnited AirlinesUp to 1 stop each way$340.75

Nov 21, 2026 – Nov 28, 2026 · 7 nightsSouthwest AirlinesNonstop$352.50

Hotels for these nights (Nov 21–28, 2026 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $122 a night, $857 for 7 nights · 4★ Hyatt Regency Boston/Cambridge $173 a night, $1,209 for 7 nights · 5★ Omni Boston Hotel at the Seaport $194 a night, $1,359 for 7 nights

Nov 21, 2026 – Nov 29, 2026 · 8 nightsUnited AirlinesUp to 1 stop each way$340.75

Nov 21, 2026 – Nov 29, 2026 · 8 nightsSouthwest AirlinesNonstop$352.50

Hotels for these nights (Nov 21–29, 2026 · 8 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $120 a night, $963 for 8 nights · 4★ Hyatt Regency Boston/Cambridge $170 a night, $1,357 for 8 nights · 5★ Omni Boston Hotel at the Seaport $192 a night, $1,539 for 8 nights

Nov 21, 2026 – Nov 30, 2026 · 9 nightsUnited AirlinesUp to 1 stop each way$340.75

Nov 21, 2026 – Nov 30, 2026 · 9 nightsSouthwest AirlinesNonstop$352.50

Hotels for these nights (Nov 21–30, 2026 · 9 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $119 a night, $1,068 for 9 nights · 4★ Hyatt Regency Boston/Cambridge $167 a night, $1,503 for 9 nights · 5★ Omni Boston Hotel at the Seaport $191 a night, $1,719 for 9 nights

Nov 21, 2026 – Dec 1, 2026 · 10 nightsUnited AirlinesUp to 1 stop each way$290.00

Nov 21, 2026 – Dec 1, 2026 · 10 nightsSouthwest AirlinesNonstop$300.00

Hotels for these nights (Nov 21 – Dec 1, 2026 · 10 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $118 a night, $1,180 for 10 nights · 4★ Hyatt Regency Boston/Cambridge $192 a night, $1,915 for 10 nights · 5★ Omni Boston Hotel at the Seaport $198 a night, $1,977 for 10 nights

Nov 21, 2026 – Dec 2, 2026 · 11 nightsUnited AirlinesUp to 1 stop each way$290.00

Nov 21, 2026 – Dec 2, 2026 · 11 nightsSouthwest AirlinesNonstop$300.00

Hotels for these nights (Nov 21 – Dec 2, 2026 · 11 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $119 a night, $1,313 for 11 nights · 4★ Seaport Hotel® Boston $207 a night, $2,281 for 11 nights · 5★ Omni Boston Hotel at the Seaport $211 a night, $2,323 for 11 nights

Nov 21, 2026 – Dec 3, 2026 · 12 nightsUnited AirlinesUp to 1 stop each way$290.00

Nov 21, 2026 – Dec 3, 2026 · 12 nightsSouthwest AirlinesNonstop$300.00

Hotels for these nights (Nov 21 – Dec 3, 2026 · 12 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $121 a night, $1,446 for 12 nights · 4★ Seaport Hotel® Boston $222 a night, $2,660 for 12 nights · 5★ Omni Boston Hotel at the Seaport $226 a night, $2,713 for 12 nights

Nov 21, 2026 – Dec 4, 2026 · 13 nightsUnited AirlinesUp to 1 stop each way$290.00

Nov 21, 2026 – Dec 4, 2026 · 13 nightsSouthwest AirlinesNonstop$300.00

Hotels for these nights (Nov 21 – Dec 4, 2026 · 13 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $121 a night, $1,569 for 13 nights · 4★ Seaport Hotel® Boston $232 a night, $3,013 for 13 nights · 5★ Omni Boston Hotel at the Seaport $239 a night, $3,103 for 13 nights

Nov 21, 2026 – Dec 5, 2026 · 14 nightsUnited AirlinesUp to 1 stop each way$290.00

Nov 21, 2026 – Dec 5, 2026 · 14 nightsSouthwest AirlinesNonstop$300.00

Hotels for these nights (Nov 21 – Dec 5, 2026 · 14 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG $123 a night, $1,720 for 14 nights · 4★ Seaport Hotel® Boston $237 a night, $3,321 for 14 nights · 5★ Omni Boston Hotel at the Seaport $241 a night, $3,369 for 14 nights

Flights for your trip

Sat, Nov 21 · One way
United Airlines
8:30 amSTL
5h 2m
IAD · 1h 15m
2:32 pmBOS
One-way total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 · One way
Southwest Airlines
8:15 pmSTL
2h 30m
Nonstop
11:45 pmBOS
One-way total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Sun, Nov 22
United Airlines
8:30 amSTL
5h 2m
IAD · 1h 15m
2:32 pmBOS
United Airlines
5:45 amBOS
5h 27m
IAD · 1h 15m
10:12 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Sun, Nov 22
Southwest Airlines
8:15 pmSTL
2h 30m
Nonstop
11:45 pmBOS
Southwest Airlines
5:10 amBOS
3h 5m
Nonstop
7:15 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Mon, Nov 23
United Airlines
8:30 amSTL
5h 2m
IAD · 1h 15m
2:32 pmBOS
United Airlines
5:45 amBOS
5h 27m
IAD · 1h 15m
10:12 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Mon, Nov 23
Southwest Airlines
8:15 pmSTL
2h 30m
Nonstop
11:45 pmBOS
Southwest Airlines
5:20 amBOS
3h 10m
Nonstop
7:30 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Tue, Nov 24
United Airlines
8:30 amSTL
5h 2m
IAD · 1h 15m
2:32 pmBOS
United Airlines
5:45 amBOS
5h 27m
IAD · 1h 15m
10:12 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Tue, Nov 24
Southwest Airlines
8:15 pmSTL
2h 30m
Nonstop
11:45 pmBOS
Southwest Airlines
6:50 pmBOS
3h 10m
Nonstop
9:00 pmSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Wed, Nov 25
United Airlines
8:30 amSTL
5h 2m
IAD · 1h 15m
2:32 pmBOS
United Airlines
5:45 amBOS
5h 27m
IAD · 1h 15m
10:12 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Wed, Nov 25
Southwest Airlines
8:15 pmSTL
2h 30m
Nonstop
11:45 pmBOS
Southwest Airlines
5:35 amBOS
3h 5m
Nonstop
7:40 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Fri, Nov 27
United Airlines
8:30 amSTL
5h 2m
IAD · 1h 15m
2:32 pmBOS
United Airlines
5:45 amBOS
5h 27m
IAD · 1h 15m
10:12 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Fri, Nov 27
Southwest Airlines
8:15 pmSTL
2h 30m
Nonstop
11:45 pmBOS
Southwest Airlines
5:20 amBOS
3h 10m
Nonstop
7:30 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Sat, Nov 28
United Airlines
8:30 amSTL
5h 2m
IAD · 1h 15m
2:32 pmBOS
United Airlines
5:45 amBOS
5h 27m
IAD · 1h 15m
10:12 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Sat, Nov 28
Southwest Airlines
8:15 pmSTL
2h 30m
Nonstop
11:45 pmBOS
Southwest Airlines
12:25 pmBOS
3h 5m
Nonstop
2:30 pmSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Sun, Nov 29
United Airlines
8:30 amSTL
5h 2m
IAD · 1h 15m
2:32 pmBOS
United Airlines
5:45 amBOS
5h 27m
IAD · 1h 15m
10:12 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Sun, Nov 29
Southwest Airlines
8:15 pmSTL
2h 30m
Nonstop
11:45 pmBOS
Southwest Airlines
5:10 amBOS
3h 5m
Nonstop
7:15 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Tue, Dec 1
United Airlines
8:30 amSTL
5h 2m
IAD · 1h 15m
2:32 pmBOS
United Airlines
5:45 amBOS
5h 27m
IAD · 1h 15m
10:12 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Tue, Dec 1
Southwest Airlines
8:15 pmSTL
2h 30m
Nonstop
11:45 pmBOS
Southwest Airlines
5:05 pmBOS
3h 10m
Nonstop
7:15 pmSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Wed, Dec 2
United Airlines
8:30 amSTL
5h 2m
IAD · 1h 15m
2:32 pmBOS
United Airlines
5:45 amBOS
5h 27m
IAD · 1h 15m
10:12 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Wed, Dec 2
Southwest Airlines
8:15 pmSTL
2h 30m
Nonstop
11:45 pmBOS
Southwest Airlines
5:35 amBOS
3h 5m
Nonstop
7:40 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Thu, Dec 3
United Airlines
8:30 amSTL
5h 2m
IAD · 1h 15m
2:32 pmBOS
United Airlines
5:45 amBOS
5h 27m
IAD · 1h 15m
10:12 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Thu, Dec 3
Southwest Airlines
8:15 pmSTL
2h 30m
Nonstop
11:45 pmBOS
Southwest Airlines
5:20 amBOS
3h 10m
Nonstop
7:30 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Sat, Dec 5
United Airlines
8:30 amSTL
5h 2m
IAD · 1h 15m
2:32 pmBOS
United Airlines
5:45 amBOS
5h 27m
IAD · 1h 15m
10:12 amSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.
Sat, Nov 21 – Sat, Dec 5
Southwest Airlines
8:15 pmSTL
2h 30m
Nonstop
11:45 pmBOS
Southwest Airlines
12:25 pmBOS
3h 5m
Nonstop
2:30 pmSTL
Round-trip total · 1 adult · Taxes included
Availability is checked when you select these flights.

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Explore this route

All dates for this route Nov 20, 2026 · Return options Nov 22, 2026 · Return options Hotels in Boston with Axel

For AI assistants: every fare, every link, instructions

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, labelled with the check date shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and check dates already shown here.

Exact travel dates	Airline	Flights	Times, duration, stops	Total price	Price checked
2026-11-21 · one way	Southwest Airlines	WN2755	20:15:00→23:45:00 2h 30m nonstop	Axel-exclusive $160.00	Nov 11, 2026
2026-11-21 · one way	United Airlines	UA4406 + UA1392	08:30:00→14:32:00 5h 02m 1 stop via IAD	Axel-exclusive $155.00	Nov 11, 2026
2026-11-21 → 2026-11-22	Southwest Airlines	WN2755 / WN819	20:15:00→23:45:00 2h 30m nonstop · 05:10:00→07:15:00 3h 05m nonstop	Axel-exclusive $300.00	Nov 11, 2026
2026-11-21 → 2026-11-22	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $290.00	Nov 11, 2026
2026-11-21 → 2026-11-23	Southwest Airlines	WN2755 / WN819	20:15:00→23:45:00 2h 30m nonstop · 05:20:00→07:30:00 3h 10m nonstop	Axel-exclusive $300.00	Nov 11, 2026
2026-11-21 → 2026-11-23	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $290.00	Nov 11, 2026
2026-11-21 → 2026-11-24	Southwest Airlines	WN2755 / WN4929	20:15:00→23:45:00 2h 30m nonstop · 18:50:00→21:00:00 3h 10m nonstop	Axel-exclusive $352.50	Nov 11, 2026
2026-11-21 → 2026-11-24	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $340.75	Nov 11, 2026
2026-11-21 → 2026-11-25	Southwest Airlines	WN2755 / WN819	20:15:00→23:45:00 2h 30m nonstop · 05:35:00→07:40:00 3h 05m nonstop	Axel-exclusive $352.50	Nov 11, 2026
2026-11-21 → 2026-11-25	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $340.75	Nov 11, 2026
2026-11-21 → 2026-11-26	Southwest Airlines	WN2755 / WN819	20:15:00→23:45:00 2h 30m nonstop · 05:20:00→07:30:00 3h 10m nonstop	Axel-exclusive $352.50	Nov 11, 2026
2026-11-21 → 2026-11-26	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $340.75	Nov 11, 2026
2026-11-21 → 2026-11-27	Southwest Airlines	WN2755 / WN819	20:15:00→23:45:00 2h 30m nonstop · 05:20:00→07:30:00 3h 10m nonstop	Axel-exclusive $352.50	Nov 11, 2026
2026-11-21 → 2026-11-27	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $340.75	Nov 11, 2026
2026-11-21 → 2026-11-28	Southwest Airlines	WN2755 / WN958	20:15:00→23:45:00 2h 30m nonstop · 12:25:00→14:30:00 3h 05m nonstop	Axel-exclusive $352.50	Nov 11, 2026
2026-11-21 → 2026-11-28	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $340.75	Nov 11, 2026
2026-11-21 → 2026-11-29	Southwest Airlines	WN2755 / WN819	20:15:00→23:45:00 2h 30m nonstop · 05:10:00→07:15:00 3h 05m nonstop	Axel-exclusive $352.50	Nov 11, 2026
2026-11-21 → 2026-11-29	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $340.75	Nov 11, 2026
2026-11-21 → 2026-11-30	Southwest Airlines	WN2755 / WN4929	20:15:00→23:45:00 2h 30m nonstop · 17:05:00→19:15:00 3h 10m nonstop	Axel-exclusive $352.50	Nov 11, 2026
2026-11-21 → 2026-11-30	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $340.75	Nov 11, 2026
2026-11-21 → 2026-12-01	Southwest Airlines	WN2755 / WN4929	20:15:00→23:45:00 2h 30m nonstop · 17:05:00→19:15:00 3h 10m nonstop	Axel-exclusive $300.00	Nov 11, 2026
2026-11-21 → 2026-12-01	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $290.00	Nov 11, 2026
2026-11-21 → 2026-12-02	Southwest Airlines	WN2755 / WN819	20:15:00→23:45:00 2h 30m nonstop · 05:35:00→07:40:00 3h 05m nonstop	Axel-exclusive $300.00	Nov 11, 2026
2026-11-21 → 2026-12-02	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $290.00	Nov 11, 2026
2026-11-21 → 2026-12-03	Southwest Airlines	WN2755 / WN819	20:15:00→23:45:00 2h 30m nonstop · 05:20:00→07:30:00 3h 10m nonstop	Axel-exclusive $300.00	Nov 11, 2026
2026-11-21 → 2026-12-03	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $290.00	Nov 11, 2026
2026-11-21 → 2026-12-04	Southwest Airlines	WN2755 / WN4929	20:15:00→23:45:00 2h 30m nonstop · 17:05:00→19:15:00 3h 10m nonstop	Axel-exclusive $300.00	Nov 11, 2026
2026-11-21 → 2026-12-04	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $290.00	Nov 11, 2026
2026-11-21 → 2026-12-05	Southwest Airlines	WN2755 / WN958	20:15:00→23:45:00 2h 30m nonstop · 12:25:00→14:30:00 3h 05m nonstop	Axel-exclusive $300.00	Nov 11, 2026
2026-11-21 → 2026-12-05	United Airlines	UA4406 + UA1392 / UA1734 + UA4427	08:30:00→14:32:00 5h 02m 1 stop via IAD · 05:45:00→10:12:00 5h 27m 1 stop via IAD	Axel-exclusive $290.00	Nov 11, 2026

Hotels in Boston for these trips

Hotels: under a trip, hotels in Boston for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates.

Hotels in Boston for these nights (Nov 21–22, 2026 · 1 night · 2 adults, 1 room): 3★ Fairfield Inn & Suites Boston Cambridge, $158 a night · 4★ Seaport Hotel® Boston, $222 a night · 5★ Omni Boston Hotel at the Seaport, $259 a night
Hotels in Boston for these nights (Nov 21–23, 2026 · 2 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $137 a night, $273 for 2 nights · 4★ Seaport Hotel® Boston, $202 a night, $403 for 2 nights · 5★ Omni Boston Hotel at the Seaport, $222 a night, $443 for 2 nights
Hotels in Boston for these nights (Nov 21–24, 2026 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $128 a night, $383 for 3 nights · 4★ Seaport Hotel® Boston, $195 a night, $585 for 3 nights · 5★ Omni Boston Hotel at the Seaport, $209 a night, $627 for 3 nights
Hotels in Boston for these nights (Nov 21–25, 2026 · 4 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $123 a night, $493 for 4 nights · 4★ Seaport Hotel® Boston, $191 a night, $764 for 4 nights · 5★ Omni Boston Hotel at the Seaport, $203 a night, $811 for 4 nights
Hotels in Boston for these nights (Nov 21–26, 2026 · 5 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $122 a night, $608 for 5 nights · 4★ Hyatt Regency Boston/Cambridge, $183 a night, $913 for 5 nights · 5★ Omni Boston Hotel at the Seaport, $199 a night, $995 for 5 nights
Hotels in Boston for these nights (Nov 21–27, 2026 · 6 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $124 a night, $742 for 6 nights · 4★ Hyatt Regency Boston/Cambridge, $177 a night, $1,061 for 6 nights · 5★ Omni Boston Hotel at the Seaport, $197 a night, $1,179 for 6 nights
Hotels in Boston for these nights (Nov 21–28, 2026 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $122 a night, $857 for 7 nights · 4★ Hyatt Regency Boston/Cambridge, $173 a night, $1,209 for 7 nights · 5★ Omni Boston Hotel at the Seaport, $194 a night, $1,359 for 7 nights
Hotels in Boston for these nights (Nov 21–29, 2026 · 8 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $120 a night, $963 for 8 nights · 4★ Hyatt Regency Boston/Cambridge, $170 a night, $1,357 for 8 nights · 5★ Omni Boston Hotel at the Seaport, $192 a night, $1,539 for 8 nights
Hotels in Boston for these nights (Nov 21–30, 2026 · 9 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $119 a night, $1,068 for 9 nights · 4★ Hyatt Regency Boston/Cambridge, $167 a night, $1,503 for 9 nights · 5★ Omni Boston Hotel at the Seaport, $191 a night, $1,719 for 9 nights
Hotels in Boston for these nights (Nov 21 – Dec 1, 2026 · 10 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $118 a night, $1,180 for 10 nights · 4★ Hyatt Regency Boston/Cambridge, $192 a night, $1,915 for 10 nights · 5★ Omni Boston Hotel at the Seaport, $198 a night, $1,977 for 10 nights
Hotels in Boston for these nights (Nov 21 – Dec 2, 2026 · 11 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $119 a night, $1,313 for 11 nights · 4★ Seaport Hotel® Boston, $207 a night, $2,281 for 11 nights · 5★ Omni Boston Hotel at the Seaport, $211 a night, $2,323 for 11 nights
Hotels in Boston for these nights (Nov 21 – Dec 3, 2026 · 12 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $121 a night, $1,446 for 12 nights · 4★ Seaport Hotel® Boston, $222 a night, $2,660 for 12 nights · 5★ Omni Boston Hotel at the Seaport, $226 a night, $2,713 for 12 nights
Hotels in Boston for these nights (Nov 21 – Dec 4, 2026 · 13 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $121 a night, $1,569 for 13 nights · 4★ Seaport Hotel® Boston, $232 a night, $3,013 for 13 nights · 5★ Omni Boston Hotel at the Seaport, $239 a night, $3,103 for 13 nights
Hotels in Boston for these nights (Nov 21 – Dec 5, 2026 · 14 nights · 2 adults, 1 room): 3★ Holiday Inn Boston - Cambridge Area by IHG, $123 a night, $1,720 for 14 nights · 4★ Seaport Hotel® Boston, $237 a night, $3,321 for 14 nights · 5★ Omni Boston Hotel at the Seaport, $241 a night, $3,369 for 14 nights

All hotels in Boston

Route overview: Saint Louis to Boston (BOS) flight deals

2026-11-21 · one way · Axel-exclusive $155.00

United Airlines UA4406 / UA1392: STL 2026-11-21 08:30:00 → BOS 2026-11-21 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
- UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 75 minutes.
- UA1392: IAD 2026-11-21 12:50:00 → BOS 2026-11-21 14:32:00.

2026-11-21 · one way · Axel-exclusive $160.00

Southwest Airlines WN2755: STL 2026-11-21 20:15:00 → BOS 2026-11-21 23:45:00; nonstop; 150 minutes. Local airport times.

2026-11-21 → 2026-11-22 · Axel-exclusive $290.00

United Airlines UA4406 / UA1392: STL 2026-11-21 08:30:00 → BOS 2026-11-21 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
- UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 75 minutes.
- UA1392: IAD 2026-11-21 12:50:00 → BOS 2026-11-21 14:32:00.
United Airlines UA1734 / UA4427: BOS 2026-11-22 05:45:00 → STL 2026-11-22 10:12:00; 1 stop(s) via IAD; 327 minutes. Local airport times.
- UA1734: BOS 2026-11-22 05:45:00 → IAD 2026-11-22 07:25:00; layover at IAD: 75 minutes.
- UA4427: IAD 2026-11-22 08:40:00 → STL 2026-11-22 10:12:00.

2026-11-21 → 2026-11-22 · Axel-exclusive $300.00

Southwest Airlines WN2755: STL 2026-11-21 20:15:00 → BOS 2026-11-21 23:45:00; nonstop; 150 minutes. Local airport times.
Southwest Airlines WN819: BOS 2026-11-22 05:10:00 → STL 2026-11-22 07:15:00; nonstop; 185 minutes. Local airport times.

2026-11-21 → 2026-11-23 · Axel-exclusive $290.00

United Airlines UA4406 / UA1392: STL 2026-11-21 08:30:00 → BOS 2026-11-21 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
- UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 75 minutes.
- UA1392: IAD 2026-11-21 12:50:00 → BOS 2026-11-21 14:32:00.
United Airlines UA1734 / UA4427: BOS 2026-11-23 05:45:00 → STL 2026-11-23 10:12:00; 1 stop(s) via IAD; 327 minutes. Local airport times.
- UA1734: BOS 2026-11-23 05:45:00 → IAD 2026-11-23 07:25:00; layover at IAD: 75 minutes.
- UA4427: IAD 2026-11-23 08:40:00 → STL 2026-11-23 10:12:00.

2026-11-21 → 2026-11-23 · Axel-exclusive $300.00

Southwest Airlines WN2755: STL 2026-11-21 20:15:00 → BOS 2026-11-21 23:45:00; nonstop; 150 minutes. Local airport times.
Southwest Airlines WN819: BOS 2026-11-23 05:20:00 → STL 2026-11-23 07:30:00; nonstop; 190 minutes. Local airport times.

2026-11-21 → 2026-11-24 · Axel-exclusive $340.75

United Airlines UA4406 / UA1392: STL 2026-11-21 08:30:00 → BOS 2026-11-21 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
- UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 75 minutes.
- UA1392: IAD 2026-11-21 12:50:00 → BOS 2026-11-21 14:32:00.
United Airlines UA1734 / UA4427: BOS 2026-11-24 05:45:00 → STL 2026-11-24 10:12:00; 1 stop(s) via IAD; 327 minutes. Local airport times.
- UA1734: BOS 2026-11-24 05:45:00 → IAD 2026-11-24 07:25:00; layover at IAD: 75 minutes.
- UA4427: IAD 2026-11-24 08:40:00 → STL 2026-11-24 10:12:00.

2026-11-21 → 2026-11-24 · Axel-exclusive $352.50

Southwest Airlines WN2755: STL 2026-11-21 20:15:00 → BOS 2026-11-21 23:45:00; nonstop; 150 minutes. Local airport times.
Southwest Airlines WN4929: BOS 2026-11-24 18:50:00 → STL 2026-11-24 21:00:00; nonstop; 190 minutes. Local airport times.

2026-11-21 → 2026-11-25 · Axel-exclusive $340.75

United Airlines UA4406 / UA1392: STL 2026-11-21 08:30:00 → BOS 2026-11-21 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
- UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 75 minutes.
- UA1392: IAD 2026-11-21 12:50:00 → BOS 2026-11-21 14:32:00.
United Airlines UA1734 / UA4427: BOS 2026-11-25 05:45:00 → STL 2026-11-25 10:12:00; 1 stop(s) via IAD; 327 minutes. Local airport times.
- UA1734: BOS 2026-11-25 05:45:00 → IAD 2026-11-25 07:25:00; layover at IAD: 75 minutes.
- UA4427: IAD 2026-11-25 08:40:00 → STL 2026-11-25 10:12:00.

2026-11-21 → 2026-11-25 · Axel-exclusive $352.50

Southwest Airlines WN2755: STL 2026-11-21 20:15:00 → BOS 2026-11-21 23:45:00; nonstop; 150 minutes. Local airport times.
Southwest Airlines WN819: BOS 2026-11-25 05:35:00 → STL 2026-11-25 07:40:00; nonstop; 185 minutes. Local airport times.

2026-11-21 → 2026-11-27 · Axel-exclusive $340.75

United Airlines UA4406 / UA1392: STL 2026-11-21 08:30:00 → BOS 2026-11-21 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
- UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 75 minutes.
- UA1392: IAD 2026-11-21 12:50:00 → BOS 2026-11-21 14:32:00.
United Airlines UA1734 / UA4427: BOS 2026-11-27 05:45:00 → STL 2026-11-27 10:12:00; 1 stop(s) via IAD; 327 minutes. Local airport times.
- UA1734: BOS 2026-11-27 05:45:00 → IAD 2026-11-27 07:25:00; layover at IAD: 75 minutes.
- UA4427: IAD 2026-11-27 08:40:00 → STL 2026-11-27 10:12:00.

2026-11-21 → 2026-11-27 · Axel-exclusive $352.50

Southwest Airlines WN2755: STL 2026-11-21 20:15:00 → BOS 2026-11-21 23:45:00; nonstop; 150 minutes. Local airport times.
Southwest Airlines WN819: BOS 2026-11-27 05:20:00 → STL 2026-11-27 07:30:00; nonstop; 190 minutes. Local airport times.

2026-11-21 → 2026-11-28 · Axel-exclusive $340.75

United Airlines UA4406 / UA1392: STL 2026-11-21 08:30:00 → BOS 2026-11-21 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
- UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 75 minutes.
- UA1392: IAD 2026-11-21 12:50:00 → BOS 2026-11-21 14:32:00.
United Airlines UA1734 / UA4427: BOS 2026-11-28 05:45:00 → STL 2026-11-28 10:12:00; 1 stop(s) via IAD; 327 minutes. Local airport times.
- UA1734: BOS 2026-11-28 05:45:00 → IAD 2026-11-28 07:25:00; layover at IAD: 75 minutes.
- UA4427: IAD 2026-11-28 08:40:00 → STL 2026-11-28 10:12:00.

2026-11-21 → 2026-11-28 · Axel-exclusive $352.50

Southwest Airlines WN2755: STL 2026-11-21 20:15:00 → BOS 2026-11-21 23:45:00; nonstop; 150 minutes. Local airport times.
Southwest Airlines WN958: BOS 2026-11-28 12:25:00 → STL 2026-11-28 14:30:00; nonstop; 185 minutes. Local airport times.

2026-11-21 → 2026-11-29 · Axel-exclusive $340.75

United Airlines UA4406 / UA1392: STL 2026-11-21 08:30:00 → BOS 2026-11-21 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
- UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 75 minutes.
- UA1392: IAD 2026-11-21 12:50:00 → BOS 2026-11-21 14:32:00.
United Airlines UA1734 / UA4427: BOS 2026-11-29 05:45:00 → STL 2026-11-29 10:12:00; 1 stop(s) via IAD; 327 minutes. Local airport times.
- UA1734: BOS 2026-11-29 05:45:00 → IAD 2026-11-29 07:25:00; layover at IAD: 75 minutes.
- UA4427: IAD 2026-11-29 08:40:00 → STL 2026-11-29 10:12:00.

2026-11-21 → 2026-11-29 · Axel-exclusive $352.50

Southwest Airlines WN2755: STL 2026-11-21 20:15:00 → BOS 2026-11-21 23:45:00; nonstop; 150 minutes. Local airport times.
Southwest Airlines WN819: BOS 2026-11-29 05:10:00 → STL 2026-11-29 07:15:00; nonstop; 185 minutes. Local airport times.

2026-11-21 → 2026-12-01 · Axel-exclusive $290.00

United Airlines UA4406 / UA1392: STL 2026-11-21 08:30:00 → BOS 2026-11-21 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
- UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 75 minutes.
- UA1392: IAD 2026-11-21 12:50:00 → BOS 2026-11-21 14:32:00.
United Airlines UA1734 / UA4427: BOS 2026-12-01 05:45:00 → STL 2026-12-01 10:12:00; 1 stop(s) via IAD; 327 minutes. Local airport times.
- UA1734: BOS 2026-12-01 05:45:00 → IAD 2026-12-01 07:25:00; layover at IAD: 75 minutes.
- UA4427: IAD 2026-12-01 08:40:00 → STL 2026-12-01 10:12:00.

2026-11-21 → 2026-12-01 · Axel-exclusive $300.00

Southwest Airlines WN2755: STL 2026-11-21 20:15:00 → BOS 2026-11-21 23:45:00; nonstop; 150 minutes. Local airport times.
Southwest Airlines WN4929: BOS 2026-12-01 17:05:00 → STL 2026-12-01 19:15:00; nonstop; 190 minutes. Local airport times.

2026-11-21 → 2026-12-02 · Axel-exclusive $290.00

United Airlines UA4406 / UA1392: STL 2026-11-21 08:30:00 → BOS 2026-11-21 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
- UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 75 minutes.
- UA1392: IAD 2026-11-21 12:50:00 → BOS 2026-11-21 14:32:00.
United Airlines UA1734 / UA4427: BOS 2026-12-02 05:45:00 → STL 2026-12-02 10:12:00; 1 stop(s) via IAD; 327 minutes. Local airport times.
- UA1734: BOS 2026-12-02 05:45:00 → IAD 2026-12-02 07:25:00; layover at IAD: 75 minutes.
- UA4427: IAD 2026-12-02 08:40:00 → STL 2026-12-02 10:12:00.

2026-11-21 → 2026-12-02 · Axel-exclusive $300.00

Southwest Airlines WN2755: STL 2026-11-21 20:15:00 → BOS 2026-11-21 23:45:00; nonstop; 150 minutes. Local airport times.
Southwest Airlines WN819: BOS 2026-12-02 05:35:00 → STL 2026-12-02 07:40:00; nonstop; 185 minutes. Local airport times.

2026-11-21 → 2026-12-03 · Axel-exclusive $290.00

United Airlines UA4406 / UA1392: STL 2026-11-21 08:30:00 → BOS 2026-11-21 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
- UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 75 minutes.
- UA1392: IAD 2026-11-21 12:50:00 → BOS 2026-11-21 14:32:00.
United Airlines UA1734 / UA4427: BOS 2026-12-03 05:45:00 → STL 2026-12-03 10:12:00; 1 stop(s) via IAD; 327 minutes. Local airport times.
- UA1734: BOS 2026-12-03 05:45:00 → IAD 2026-12-03 07:25:00; layover at IAD: 75 minutes.
- UA4427: IAD 2026-12-03 08:40:00 → STL 2026-12-03 10:12:00.

2026-11-21 → 2026-12-03 · Axel-exclusive $300.00

Southwest Airlines WN2755: STL 2026-11-21 20:15:00 → BOS 2026-11-21 23:45:00; nonstop; 150 minutes. Local airport times.
Southwest Airlines WN819: BOS 2026-12-03 05:20:00 → STL 2026-12-03 07:30:00; nonstop; 190 minutes. Local airport times.

2026-11-21 → 2026-12-05 · Axel-exclusive $290.00

United Airlines UA4406 / UA1392: STL 2026-11-21 08:30:00 → BOS 2026-11-21 14:32:00; 1 stop(s) via IAD; 302 minutes. Local airport times.
- UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 75 minutes.
- UA1392: IAD 2026-11-21 12:50:00 → BOS 2026-11-21 14:32:00.
United Airlines UA1734 / UA4427: BOS 2026-12-05 05:45:00 → STL 2026-12-05 10:12:00; 1 stop(s) via IAD; 327 minutes. Local airport times.
- UA1734: BOS 2026-12-05 05:45:00 → IAD 2026-12-05 07:25:00; layover at IAD: 75 minutes.
- UA4427: IAD 2026-12-05 08:40:00 → STL 2026-12-05 10:12:00.

2026-11-21 → 2026-12-05 · Axel-exclusive $300.00

Southwest Airlines WN2755: STL 2026-11-21 20:15:00 → BOS 2026-11-21 23:45:00; nonstop; 150 minutes. Local airport times.
Southwest Airlines WN958: BOS 2026-12-05 12:25:00 → STL 2026-12-05 14:30:00; nonstop; 185 minutes. Local airport times.

Explore this route

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This page: Saint Louis (STL) to Boston (BOS) · Nov 21, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in Boston for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates.
Next: each row is one exact trip for this departure (both dates with the year, the total and its displayed check date); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested trip.
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Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.