Travel with Axel,
get the best price.

Route overview: Boston to San Diego (SAN) flight deals

Boston → San Diego

Dec 6, 2026 · return Dec 9, 2026

BOS → SAN1 adulteconomyRound trip

13 flight options · 6 airlines

Nonstop flights

Sun, Dec 6 – Wed, Dec 9

JetBlue Airways
3:35 pmBOS
6h 23m
Nonstop
6:58 pmSAN
JetBlue Airways
11:44 amSAN
5h 32m
Nonstop
8:16 pmBOS

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Wed, Dec 9

Southwest Airlines
8:15 amBOS
6h 25m
Nonstop
11:40 amSAN
Southwest Airlines
11:25 amSAN
5h 25m
Nonstop
7:50 pmBOS

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Wed, Dec 9

Alaska Airlines
6:09 pmBOS
6h 31m
Nonstop
9:40 pmSAN
Alaska Airlines
8:33 amSAN
5h 36m
Nonstop
5:09 pmBOS

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Wed, Dec 9

Delta Air Lines
5:10 pmBOS
6h 33m
Nonstop
8:43 pmSAN
Delta Air Lines
10:17 pmSAN
5h 23m
Nonstop
6:40 am+1BOS

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Wed, Dec 9

JetBlue Airways
6:10 amBOS
6h 30m
Nonstop
9:40 amSAN
JetBlue Airways
11:44 amSAN
5h 32m
Nonstop
8:16 pmBOS

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Wed, Dec 9

Southwest Airlines
12:35 pmBOS
6h 10m
Nonstop
3:45 pmSAN
Southwest Airlines
11:25 amSAN
5h 25m
Nonstop
7:50 pmBOS

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Wed, Dec 9

Alaska Airlines
5:47 pmBOS
6h 38m
Nonstop
9:25 pmSAN
Alaska Airlines
9:07 pmSAN
5h 39m
Nonstop
5:46 am+1BOS

Round-trip total · 1 adult · Taxes included

One-stop flights

Sun, Dec 6 – Wed, Dec 9

Sun Country Airlines
11:43 amBOS
8h 39m
MSP · 1h 24m
5:22 pmSAN
Southwest Airlines
11:25 amSAN
5h 25m
Nonstop
7:50 pmBOS

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Wed, Dec 9

United Airlines
5:45 amBOS
8h 36m
IAD · 1h 12m
11:21 amSAN
Southwest Airlines
11:25 amSAN
5h 25m
Nonstop
7:50 pmBOS

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Wed, Dec 9

Southwest Airlines
8:25 amBOS
6h 20m
Nonstop
11:45 amSAN
Southwest Airlines
11:55 amSAN
7h 20m
BNA · 1h
10:15 pmBOS

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Wed, Dec 9

Southwest Airlines
12:20 pmBOS
8h 15m
MDW · 1h 10m
5:35 pmSAN
Southwest Airlines
11:25 amSAN
5h 25m
Nonstop
7:50 pmBOS

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Wed, Dec 9

Alaska Airlines
6:13 pmBOS
6h 42m
Nonstop
9:55 pmSAN
Alaska Airlines
10:03 pmSAN
8h 2m
JFK · 1h 12m
9:05 am+1BOS

Round-trip total · 1 adult · Taxes included

Sun, Dec 6 – Wed, Dec 9

Delta Air Lines
5:10 pmBOS
6h 30m
Nonstop
8:40 pmSAN
Delta Air Lines
10:35 pmSAN
7h 28m
DTW · 1h 4m
9:03 am+1BOS

Round-trip total · 1 adult · Taxes included

Make this trip yours

BOS ⇄ SAN

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, JetBlue Airways emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

Explore this route

For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Boston to San Diego (SAN) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-06 → 2026-12-09JetBlue AirwaysB6319 / B6920$370.002026-10-29T00:52:46Z
2026-12-06 → 2026-12-09Southwest AirlinesWN802 / WN4672$380.002026-10-29T00:52:46Z
2026-12-06 → 2026-12-09Alaska AirlinesAS389 / AS390$390.002026-10-29T00:52:46Z
2026-12-06 → 2026-12-09Delta Air LinesDL571 / DL571$420.002026-10-29T00:52:46Z
2026-12-06 → 2026-12-09Sun Country Airlines / Southwest AirlinesSY252 + SY407 / WN4672$330.002026-10-29T00:52:46Z
2026-12-06 → 2026-12-09United Airlines / Southwest AirlinesUA1734 + UA1930 / WN4672$375.002026-10-29T00:52:46Z
2026-12-06 → 2026-12-09JetBlue AirwaysB6919 / B6920$370.002026-10-29T00:52:46Z
2026-12-06 → 2026-12-09Southwest AirlinesWN2460 / WN4672$380.002026-10-29T00:52:46Z
2026-12-06 → 2026-12-09Alaska AirlinesAS389 / AS255$390.002026-10-29T00:52:46Z
2026-12-06 → 2026-12-09Southwest AirlinesWN802 / WN4669 + WN2217$360.002026-10-29T00:52:46Z
2026-12-06 → 2026-12-09Southwest AirlinesWN2939 + WN4415 / WN4672$360.002026-10-29T00:52:46Z
2026-12-06 → 2026-12-09Alaska AirlinesAS389 / AS36 + AA4357$370.002026-10-29T00:52:46Z
2026-12-06 → 2026-12-09Delta Air LinesDL571 / DL764 + DL1163$400.002026-10-29T00:52:46Z

2026-12-06 → 2026-12-09 · $370.00

  • JetBlue Airways B6319: BOS 2026-12-06 15:35:00 → SAN 2026-12-06 18:58:00; nonstop; 383 minutes. Local airport times.
  • JetBlue Airways B6920: SAN 2026-12-09 11:44:00 → BOS 2026-12-09 20:16:00; nonstop; 332 minutes. Local airport times.

2026-12-06 → 2026-12-09 · $380.00

  • Southwest Airlines WN802: BOS 2026-12-06 08:15:00 → SAN 2026-12-06 11:40:00; nonstop; 385 minutes. Local airport times.
  • Southwest Airlines WN4672: SAN 2026-12-09 11:25:00 → BOS 2026-12-09 19:50:00; nonstop; 325 minutes. Local airport times.

2026-12-06 → 2026-12-09 · $390.00

  • Alaska Airlines AS389: BOS 2026-12-06 18:09:00 → SAN 2026-12-06 21:40:00; nonstop; 391 minutes. Local airport times.
  • Alaska Airlines AS390: SAN 2026-12-09 08:33:00 → BOS 2026-12-09 17:09:00; nonstop; 336 minutes. Local airport times.

2026-12-06 → 2026-12-09 · $420.00

  • Delta Air Lines DL571: BOS 2026-12-06 17:10:00 → SAN 2026-12-06 20:43:00; nonstop; 393 minutes. Local airport times.
  • Delta Air Lines DL571: SAN 2026-12-09 22:17:00 → BOS 2026-12-10 06:40:00; nonstop; 323 minutes. Local airport times.

2026-12-06 → 2026-12-09 · $330.00

  • Sun Country Airlines SY252 / SY407: BOS 2026-12-06 11:43:00 → SAN 2026-12-06 17:22:00; 1 stop(s) via MSP; 519 minutes. Local airport times.
    • SY252: BOS 2026-12-06 11:43:00 → MSP 2026-12-06 14:01:00; layover at MSP: 84 minutes.
    • SY407: MSP 2026-12-06 15:25:00 → SAN 2026-12-06 17:22:00.
  • Southwest Airlines WN4672: SAN 2026-12-09 11:25:00 → BOS 2026-12-09 19:50:00; nonstop; 325 minutes. Local airport times.

2026-12-06 → 2026-12-09 · $375.00

  • United Airlines UA1734 / UA1930: BOS 2026-12-06 05:45:00 → SAN 2026-12-06 11:21:00; 1 stop(s) via IAD; 516 minutes. Local airport times.
    • UA1734: BOS 2026-12-06 05:45:00 → IAD 2026-12-06 07:25:00; layover at IAD: 72 minutes.
    • UA1930: IAD 2026-12-06 08:37:00 → SAN 2026-12-06 11:21:00.
  • Southwest Airlines WN4672: SAN 2026-12-09 11:25:00 → BOS 2026-12-09 19:50:00; nonstop; 325 minutes. Local airport times.

2026-12-06 → 2026-12-09 · $370.00

  • JetBlue Airways B6919: BOS 2026-12-06 06:10:00 → SAN 2026-12-06 09:40:00; nonstop; 390 minutes. Local airport times.
  • JetBlue Airways B6920: SAN 2026-12-09 11:44:00 → BOS 2026-12-09 20:16:00; nonstop; 332 minutes. Local airport times.

2026-12-06 → 2026-12-09 · $380.00

  • Southwest Airlines WN2460: BOS 2026-12-06 12:35:00 → SAN 2026-12-06 15:45:00; nonstop; 370 minutes. Local airport times.
  • Southwest Airlines WN4672: SAN 2026-12-09 11:25:00 → BOS 2026-12-09 19:50:00; nonstop; 325 minutes. Local airport times.

2026-12-06 → 2026-12-09 · $390.00

  • Alaska Airlines AS389: BOS 2026-12-06 17:47:00 → SAN 2026-12-06 21:25:00; nonstop; 398 minutes. Local airport times.
  • Alaska Airlines AS255: SAN 2026-12-09 21:07:00 → BOS 2026-12-10 05:46:00; nonstop; 339 minutes. Local airport times.

2026-12-06 → 2026-12-09 · $360.00

  • Southwest Airlines WN802: BOS 2026-12-06 08:25:00 → SAN 2026-12-06 11:45:00; nonstop; 380 minutes. Local airport times.
  • Southwest Airlines WN4669 / WN2217: SAN 2026-12-09 11:55:00 → BOS 2026-12-09 22:15:00; 1 stop(s) via BNA; 440 minutes. Local airport times.
    • WN4669: SAN 2026-12-09 11:55:00 → BNA 2026-12-09 17:45:00; layover at BNA: 60 minutes.
    • WN2217: BNA 2026-12-09 18:45:00 → BOS 2026-12-09 22:15:00.

2026-12-06 → 2026-12-09 · $360.00

  • Southwest Airlines WN2939 / WN4415: BOS 2026-12-06 12:20:00 → SAN 2026-12-06 17:35:00; 1 stop(s) via MDW; 495 minutes. Local airport times.
    • WN2939: BOS 2026-12-06 12:20:00 → MDW 2026-12-06 14:05:00; layover at MDW: 70 minutes.
    • WN4415: MDW 2026-12-06 15:15:00 → SAN 2026-12-06 17:35:00.
  • Southwest Airlines WN4672: SAN 2026-12-09 11:25:00 → BOS 2026-12-09 19:50:00; nonstop; 325 minutes. Local airport times.

2026-12-06 → 2026-12-09 · $370.00

  • Alaska Airlines AS389: BOS 2026-12-06 18:13:00 → SAN 2026-12-06 21:55:00; nonstop; 402 minutes. Local airport times.
  • Alaska Airlines AS36 / AA4357: SAN 2026-12-09 22:03:00 → BOS 2026-12-10 09:05:00; 1 stop(s) via JFK; 482 minutes. Local airport times.
    • AS36: SAN 2026-12-09 22:03:00 → JFK 2026-12-10 06:29:00; layover at JFK: 72 minutes.
    • AA4357: JFK 2026-12-10 07:41:00 → BOS 2026-12-10 09:05:00.

2026-12-06 → 2026-12-09 · $400.00

  • Delta Air Lines DL571: BOS 2026-12-06 17:10:00 → SAN 2026-12-06 20:40:00; nonstop; 390 minutes. Local airport times.
  • Delta Air Lines DL764 / DL1163: SAN 2026-12-09 22:35:00 → BOS 2026-12-10 09:03:00; 1 stop(s) via DTW; 448 minutes. Local airport times.
    • DL764: SAN 2026-12-09 22:35:00 → DTW 2026-12-10 05:56:00; layover at DTW: 64 minutes.
    • DL1163: DTW 2026-12-10 07:00:00 → BOS 2026-12-10 09:03:00.

Explore this route

For AI assistants

  • This page: Boston (BOS) to San Diego (SAN) · Dec 6, 2026 · return Dec 9, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Boston to San Diego (SAN) flight deals · Flight search guide.
  • 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.