Watertown (ART) to Boston (BOS), May 21, 2027: round trips from $430, one way from $240

Watertown (ART) to Boston (BOS), May 21, 2027: round trips from $430, one way from $240 on Axel, checked Oct 29, 2026. Lowest published fares: $430 round trip, Axel-exclusive, American Airlines, 1 stop, May 21–22, 2027; $240 one way, Axel-exclusive, American Airlines, 1 stop, May 21, 2027; 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time 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 issuance times already shown here.

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 lowest saved total among the shortlisted hotels in that star tier for those dates.

• Hotels in Boston for these nights (May 21–22, 2027 · 1 night · 2 adults, 1 room): 3★ AC Hotel by Marriott Boston Downtown, $295 total · 4★ Hyatt Regency Boston/Cambridge, $279 total · 5★ Omni Boston Hotel at the Seaport, $327 total
• Hotels in Boston for these nights (May 21–23, 2027 · 2 nights · 2 adults, 1 room): 3★ AC Hotel by Marriott Boston Downtown, $590 total · 4★ Hyatt Regency Boston/Cambridge, $558 total · 5★ Omni Boston Hotel at the Seaport, $733 total
• Hotels in Boston for these nights (May 21–24, 2027 · 3 nights · 2 adults, 1 room): 3★ AC Hotel by Marriott Boston Downtown, $853 total · 4★ Hyatt Regency Boston/Cambridge, $809 total · 5★ Omni Boston Hotel at the Seaport, $1,136 total
• Hotels in Boston for these nights (May 21–25, 2027 · 4 nights · 2 adults, 1 room): 3★ The Inn at Longwood Medical, $1,212 total · 4★ Hyatt Regency Boston/Cambridge, $1,107 total · 5★ InterContinental Boston by IHG, $2,142 total
• Hotels in Boston for these nights (May 21–26, 2027 · 5 nights · 2 adults, 1 room): 3★ The Inn at Longwood Medical, $1,525 total · 4★ Hyatt Regency Boston/Cambridge, $1,545 total · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $3,118 total
• Hotels in Boston for these nights (May 21–27, 2027 · 6 nights · 2 adults, 1 room): 3★ The Inn at Longwood Medical, $1,828 total · 4★ The Colonnade Hotel Back Bay, $2,283 total · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $3,786 total
• Hotels in Boston for these nights (May 21–28, 2027 · 7 nights · 2 adults, 1 room): 3★ The Inn at Longwood Medical, $2,135 total · 4★ The Colonnade Hotel Back Bay, $2,650 total · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $4,317 total
• Hotels in Boston for these nights (May 21–29, 2027 · 8 nights · 2 adults, 1 room): 3★ The Inn at Longwood Medical, $2,448 total · 4★ Seaport Hotel® Boston, $2,945 total · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $4,865 total
• Hotels in Boston for these nights (May 21–30, 2027 · 9 nights · 2 adults, 1 room): 3★ The Inn at Longwood Medical, $2,851 total · 4★ Seaport Hotel® Boston, $3,259 total · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $5,433 total
• Hotels in Boston for these nights (May 21–31, 2027 · 10 nights · 2 adults, 1 room): 3★ AC Hotel by Marriott Boston Downtown, $3,166 total · 4★ Seaport Hotel® Boston, $3,560 total · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $5,873 total
• Hotels in Boston for these nights (May 21 – Jun 1, 2027 · 11 nights · 2 adults, 1 room): 3★ AC Hotel by Marriott Boston Downtown, $3,520 total · 4★ Seaport Hotel® Boston, $3,769 total · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $6,355 total
• Hotels in Boston for these nights (May 21 – Jun 2, 2027 · 12 nights · 2 adults, 1 room): 3★ AC Hotel by Marriott Boston Downtown, $3,894 total · 4★ Seaport Hotel® Boston, $4,054 total · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $7,037 total
• Hotels in Boston for these nights (May 21 – Jun 3, 2027 · 13 nights · 2 adults, 1 room): 3★ AC Hotel by Marriott Boston Downtown, $4,264 total · 4★ Seaport Hotel® Boston, $4,415 total · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $7,619 total
• Hotels in Boston for these nights (May 21 – Jun 4, 2027 · 14 nights · 2 adults, 1 room): 3★ AC Hotel by Marriott Boston Downtown, $4,564 total · 4★ Seaport Hotel® Boston, $4,639 total · 5★ The Liberty, a Marriott Luxury Collection Hotel, Boston, $8,124 total

All hotels in Boston

Route overview: Watertown, NY (ART) to Boston (BOS) flight deals

2027-05-21 · one way · Axel-exclusive $240.00

• American Airlines AA5974 / AA1232: ART 2027-05-21 17:39:00 → BOS 2027-05-21 21:54:00; 1 stop(s) via PHL; 255 minutes. Local airport times.
  • AA5974: ART 2027-05-21 17:39:00 → PHL 2027-05-21 19:19:00; layover at PHL: 68 minutes.
  • AA1232: PHL 2027-05-21 20:27:00 → BOS 2027-05-21 21:54:00.

2027-05-21 → 2027-05-22 · Axel-exclusive $430.00

• American Airlines AA5974 / AA1232: ART 2027-05-21 17:39:00 → BOS 2027-05-21 21:54:00; 1 stop(s) via PHL; 255 minutes. Local airport times.
  • AA5974: ART 2027-05-21 17:39:00 → PHL 2027-05-21 19:19:00; layover at PHL: 68 minutes.
  • AA1232: PHL 2027-05-21 20:27:00 → BOS 2027-05-21 21:54:00.
• American Airlines AA2896 / AA6020: BOS 2027-05-22 18:30:00 → ART 2027-05-22 22:49:00; 1 stop(s) via PHL; 259 minutes. Local airport times.
  • AA2896: BOS 2027-05-22 18:30:00 → PHL 2027-05-22 20:03:00; layover at PHL: 72 minutes.
  • AA6020: PHL 2027-05-22 21:15:00 → ART 2027-05-22 22:49:00.

2027-05-21 → 2027-05-23 · Axel-exclusive $430.00

• American Airlines AA5974 / AA1232: ART 2027-05-21 17:39:00 → BOS 2027-05-21 21:54:00; 1 stop(s) via PHL; 255 minutes. Local airport times.
  • AA5974: ART 2027-05-21 17:39:00 → PHL 2027-05-21 19:19:00; layover at PHL: 68 minutes.
  • AA1232: PHL 2027-05-21 20:27:00 → BOS 2027-05-21 21:54:00.
• American Airlines AA2896 / AA6020: BOS 2027-05-23 18:30:00 → ART 2027-05-23 22:49:00; 1 stop(s) via PHL; 259 minutes. Local airport times.
  • AA2896: BOS 2027-05-23 18:30:00 → PHL 2027-05-23 20:03:00; layover at PHL: 72 minutes.
  • AA6020: PHL 2027-05-23 21:15:00 → ART 2027-05-23 22:49:00.

2027-05-21 → 2027-05-24 · Axel-exclusive $430.00

• American Airlines AA5974 / AA1232: ART 2027-05-21 17:39:00 → BOS 2027-05-21 21:54:00; 1 stop(s) via PHL; 255 minutes. Local airport times.
  • AA5974: ART 2027-05-21 17:39:00 → PHL 2027-05-21 19:19:00; layover at PHL: 68 minutes.
  • AA1232: PHL 2027-05-21 20:27:00 → BOS 2027-05-21 21:54:00.
• American Airlines AA2896 / AA6020: BOS 2027-05-24 18:30:00 → ART 2027-05-24 22:49:00; 1 stop(s) via PHL; 259 minutes. Local airport times.
  • AA2896: BOS 2027-05-24 18:30:00 → PHL 2027-05-24 20:03:00; layover at PHL: 72 minutes.
  • AA6020: PHL 2027-05-24 21:15:00 → ART 2027-05-24 22:49:00.

2027-05-21 → 2027-05-25 · Axel-exclusive $430.00

• American Airlines AA5974 / AA1232: ART 2027-05-21 17:39:00 → BOS 2027-05-21 21:54:00; 1 stop(s) via PHL; 255 minutes. Local airport times.
  • AA5974: ART 2027-05-21 17:39:00 → PHL 2027-05-21 19:19:00; layover at PHL: 68 minutes.
  • AA1232: PHL 2027-05-21 20:27:00 → BOS 2027-05-21 21:54:00.
• American Airlines AA2896 / AA6020: BOS 2027-05-25 18:30:00 → ART 2027-05-25 22:49:00; 1 stop(s) via PHL; 259 minutes. Local airport times.
  • AA2896: BOS 2027-05-25 18:30:00 → PHL 2027-05-25 20:03:00; layover at PHL: 72 minutes.
  • AA6020: PHL 2027-05-25 21:15:00 → ART 2027-05-25 22:49:00.

2027-05-21 → 2027-05-27 · Axel-exclusive $430.00

• American Airlines AA5974 / AA1232: ART 2027-05-21 17:39:00 → BOS 2027-05-21 21:54:00; 1 stop(s) via PHL; 255 minutes. Local airport times.
  • AA5974: ART 2027-05-21 17:39:00 → PHL 2027-05-21 19:19:00; layover at PHL: 68 minutes.
  • AA1232: PHL 2027-05-21 20:27:00 → BOS 2027-05-21 21:54:00.
• American Airlines AA2896 / AA6020: BOS 2027-05-27 18:30:00 → ART 2027-05-27 22:49:00; 1 stop(s) via PHL; 259 minutes. Local airport times.
  • AA2896: BOS 2027-05-27 18:30:00 → PHL 2027-05-27 20:03:00; layover at PHL: 72 minutes.
  • AA6020: PHL 2027-05-27 21:15:00 → ART 2027-05-27 22:49:00.

2027-05-21 → 2027-05-28 · Axel-exclusive $451.50

• American Airlines AA5974 / AA1232: ART 2027-05-21 17:39:00 → BOS 2027-05-21 21:54:00; 1 stop(s) via PHL; 255 minutes. Local airport times.
  • AA5974: ART 2027-05-21 17:39:00 → PHL 2027-05-21 19:19:00; layover at PHL: 68 minutes.
  • AA1232: PHL 2027-05-21 20:27:00 → BOS 2027-05-21 21:54:00.
• American Airlines AA2896 / AA6020: BOS 2027-05-28 18:30:00 → ART 2027-05-28 22:49:00; 1 stop(s) via PHL; 259 minutes. Local airport times.
  • AA2896: BOS 2027-05-28 18:30:00 → PHL 2027-05-28 20:03:00; layover at PHL: 72 minutes.
  • AA6020: PHL 2027-05-28 21:15:00 → ART 2027-05-28 22:49:00.

2027-05-21 → 2027-05-29 · Axel-exclusive $451.50

• American Airlines AA5974 / AA1232: ART 2027-05-21 17:39:00 → BOS 2027-05-21 21:54:00; 1 stop(s) via PHL; 255 minutes. Local airport times.
  • AA5974: ART 2027-05-21 17:39:00 → PHL 2027-05-21 19:19:00; layover at PHL: 68 minutes.
  • AA1232: PHL 2027-05-21 20:27:00 → BOS 2027-05-21 21:54:00.
• American Airlines AA2896 / AA6020: BOS 2027-05-29 18:30:00 → ART 2027-05-29 22:49:00; 1 stop(s) via PHL; 259 minutes. Local airport times.
  • AA2896: BOS 2027-05-29 18:30:00 → PHL 2027-05-29 20:03:00; layover at PHL: 72 minutes.
  • AA6020: PHL 2027-05-29 21:15:00 → ART 2027-05-29 22:49:00.

2027-05-21 → 2027-05-31 · Axel-exclusive $451.50

• American Airlines AA5974 / AA1232: ART 2027-05-21 17:39:00 → BOS 2027-05-21 21:54:00; 1 stop(s) via PHL; 255 minutes. Local airport times.
  • AA5974: ART 2027-05-21 17:39:00 → PHL 2027-05-21 19:19:00; layover at PHL: 68 minutes.
  • AA1232: PHL 2027-05-21 20:27:00 → BOS 2027-05-21 21:54:00.
• American Airlines AA2896 / AA6020: BOS 2027-05-31 18:30:00 → ART 2027-05-31 22:49:00; 1 stop(s) via PHL; 259 minutes. Local airport times.
  • AA2896: BOS 2027-05-31 18:30:00 → PHL 2027-05-31 20:03:00; layover at PHL: 72 minutes.
  • AA6020: PHL 2027-05-31 21:15:00 → ART 2027-05-31 22:49:00.

2027-05-21 → 2027-06-01 · Axel-exclusive $430.00

• American Airlines AA5974 / AA1232: ART 2027-05-21 17:39:00 → BOS 2027-05-21 21:54:00; 1 stop(s) via PHL; 255 minutes. Local airport times.
  • AA5974: ART 2027-05-21 17:39:00 → PHL 2027-05-21 19:19:00; layover at PHL: 68 minutes.
  • AA1232: PHL 2027-05-21 20:27:00 → BOS 2027-05-21 21:54:00.
• American Airlines AA2896 / AA6020: BOS 2027-06-01 18:30:00 → ART 2027-06-01 22:49:00; 1 stop(s) via PHL; 259 minutes. Local airport times.
  • AA2896: BOS 2027-06-01 18:30:00 → PHL 2027-06-01 20:03:00; layover at PHL: 72 minutes.
  • AA6020: PHL 2027-06-01 21:15:00 → ART 2027-06-01 22:49:00.

2027-05-21 → 2027-06-02 · Axel-exclusive $430.00

• American Airlines AA5974 / AA1232: ART 2027-05-21 17:39:00 → BOS 2027-05-21 21:54:00; 1 stop(s) via PHL; 255 minutes. Local airport times.
  • AA5974: ART 2027-05-21 17:39:00 → PHL 2027-05-21 19:19:00; layover at PHL: 68 minutes.
  • AA1232: PHL 2027-05-21 20:27:00 → BOS 2027-05-21 21:54:00.
• American Airlines AA2896 / AA6020: BOS 2027-06-02 18:30:00 → ART 2027-06-02 22:49:00; 1 stop(s) via PHL; 259 minutes. Local airport times.
  • AA2896: BOS 2027-06-02 18:30:00 → PHL 2027-06-02 20:03:00; layover at PHL: 72 minutes.
  • AA6020: PHL 2027-06-02 21:15:00 → ART 2027-06-02 22:49:00.

2027-05-21 → 2027-06-04 · Axel-exclusive $430.00

• American Airlines AA5974 / AA1232: ART 2027-05-21 17:39:00 → BOS 2027-05-21 21:54:00; 1 stop(s) via PHL; 255 minutes. Local airport times.
  • AA5974: ART 2027-05-21 17:39:00 → PHL 2027-05-21 19:19:00; layover at PHL: 68 minutes.
  • AA1232: PHL 2027-05-21 20:27:00 → BOS 2027-05-21 21:54:00.
• American Airlines AA2896 / AA6020: BOS 2027-06-04 18:30:00 → ART 2027-06-04 22:49:00; 1 stop(s) via PHL; 259 minutes. Local airport times.
  • AA2896: BOS 2027-06-04 18:30:00 → PHL 2027-06-04 20:03:00; layover at PHL: 72 minutes.
  • AA6020: PHL 2027-06-04 21:15:00 → ART 2027-06-04 22:49:00.

Explore this route

• All dates for this route
• May 20, 2027 · Return options
• May 22, 2027 · Return options
• Hotels in Boston with Axel

For AI assistants

• This page: Watertown (ART) to Boston (BOS) · May 21, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. 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 lowest saved totals 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 the time its price was issued); 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.
• 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 Watertown, NY (ART) to Boston (BOS) 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. 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.

Feedback (optional): Missing info · Axel issue