Boston (BOS) to San Francisco (SFO), Aug 20–22, 2027: from $460 round trip

Boston (BOS) to San Francisco (SFO), Aug 20–22, 2027: from $460 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $460 round trip, Axel-exclusive, Southwest Airlines, 1 stop, Aug 20–22, 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. Carry-on included. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Hotels in San Francisco for these trips

Hotels: under a trip, hotels in San Francisco 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 San Francisco for these nights (Aug 20–22, 2027 · 2 nights · 2 adults, 1 room): 3★ Hotel Del Sol · 4★ LUMA Hotel San Francisco · 5★ Four Seasons Hotel San Francisco at Embarcadero

All hotels in San Francisco

Route overview: Boston to San Francisco (SFO) flight deals

2027-08-20 → 2027-08-22 · Axel-exclusive $520.00

• JetBlue Airways B6733: BOS 2027-08-20 15:50:00 → SFO 2027-08-20 19:35:00; nonstop; 405 minutes. Local airport times.
• JetBlue Airways B6434: SFO 2027-08-22 08:10:00 → BOS 2027-08-22 16:45:00; nonstop; 335 minutes. Local airport times.

2027-08-20 → 2027-08-22 · Axel-exclusive $560.00

• Delta Air Lines DL2919: BOS 2027-08-20 20:46:00 → SFO 2027-08-21 00:41:00; nonstop; 415 minutes. Local airport times.
• Delta Air Lines DL400: SFO 2027-08-22 07:00:00 → BOS 2027-08-22 15:30:00; nonstop; 330 minutes. Local airport times.

2027-08-20 → 2027-08-22 · Axel-exclusive $630.00

• United Airlines UA1367: BOS 2027-08-20 13:40:00 → SFO 2027-08-20 17:38:00; nonstop; 418 minutes. Local airport times.
• United Airlines UA1665: SFO 2027-08-22 23:20:00 → BOS 2027-08-23 08:01:00; nonstop; 341 minutes. Local airport times.

2027-08-20 → 2027-08-22 · Axel-exclusive $460.00

• Southwest Airlines WN1537 / WN2104: BOS 2027-08-20 05:00:00 → SFO 2027-08-20 10:30:00; 1 stop(s) via DEN; 510 minutes. Local airport times.
  • WN1537: BOS 2027-08-20 05:00:00 → DEN 2027-08-20 07:40:00; layover at DEN: 60 minutes.
  • WN2104: DEN 2027-08-20 08:40:00 → SFO 2027-08-20 10:30:00.
• Southwest Airlines WN2331 / WN2900: SFO 2027-08-22 06:00:00 → BOS 2027-08-22 16:20:00; 1 stop(s) via MDW; 440 minutes. Local airport times.
  • WN2331: SFO 2027-08-22 06:00:00 → MDW 2027-08-22 12:15:00; layover at MDW: 60 minutes.
  • WN2900: MDW 2027-08-22 13:15:00 → BOS 2027-08-22 16:20:00.

2027-08-20 → 2027-08-22 · Axel-exclusive $520.00

• JetBlue Airways B6733: BOS 2027-08-20 20:59:00 → SFO 2027-08-21 00:44:00; nonstop; 405 minutes. Local airport times.
• JetBlue Airways B6334: SFO 2027-08-22 15:25:00 → BOS 2027-08-22 23:59:00; nonstop; 334 minutes. Local airport times.

2027-08-20 → 2027-08-22 · Axel-exclusive $560.00

• Delta Air Lines DL977: BOS 2027-08-20 07:50:00 → SFO 2027-08-20 11:41:00; nonstop; 411 minutes. Local airport times.
• Delta Air Lines DL400: SFO 2027-08-22 07:00:00 → BOS 2027-08-22 15:30:00; nonstop; 330 minutes. Local airport times.

2027-08-20 → 2027-08-22 · Axel-exclusive $630.00

• United Airlines UA1023: BOS 2027-08-20 07:30:00 → SFO 2027-08-20 11:25:00; nonstop; 415 minutes. Local airport times.
• United Airlines UA1665: SFO 2027-08-22 23:20:00 → BOS 2027-08-23 08:01:00; nonstop; 341 minutes. Local airport times.

2027-08-20 → 2027-08-22 · Axel-exclusive $460.00

• Southwest Airlines WN4995 / WN786: BOS 2027-08-20 07:10:00 → SFO 2027-08-20 12:45:00; 1 stop(s) via MDW; 515 minutes. Local airport times.
  • WN4995: BOS 2027-08-20 07:10:00 → MDW 2027-08-20 08:55:00; layover at MDW: 60 minutes.
  • WN786: MDW 2027-08-20 09:55:00 → SFO 2027-08-20 12:45:00.
• Southwest Airlines WN2331 / WN2900: SFO 2027-08-22 06:00:00 → BOS 2027-08-22 16:20:00; 1 stop(s) via MDW; 440 minutes. Local airport times.
  • WN2331: SFO 2027-08-22 06:00:00 → MDW 2027-08-22 12:15:00; layover at MDW: 60 minutes.
  • WN2900: MDW 2027-08-22 13:15:00 → BOS 2027-08-22 16:20:00.

2027-08-20 → 2027-08-22 · Axel-exclusive $480.00

• JetBlue Airways B6733: BOS 2027-08-20 20:50:00 → SFO 2027-08-21 00:37:00; nonstop; 407 minutes. Local airport times.
• JetBlue Airways B616 / B6118: SFO 2027-08-22 20:55:00 → BOS 2027-08-23 07:39:00; 1 stop(s) via JFK; 464 minutes. Local airport times.
  • B616: SFO 2027-08-22 20:55:00 → JFK 2027-08-23 05:24:00; layover at JFK: 66 minutes.
  • B6118: JFK 2027-08-23 06:30:00 → BOS 2027-08-23 07:39:00.

2027-08-20 → 2027-08-22 · Axel-exclusive $520.00

• Delta Air Lines DL1127 / DL2809: BOS 2027-08-20 15:05:00 → SFO 2027-08-20 20:49:00; 1 stop(s) via MSP; 524 minutes. Local airport times.
  • DL1127: BOS 2027-08-20 15:05:00 → MSP 2027-08-20 17:25:00; layover at MSP: 64 minutes.
  • DL2809: MSP 2027-08-20 18:29:00 → SFO 2027-08-20 20:49:00.
• Delta Air Lines DL400: SFO 2027-08-22 07:00:00 → BOS 2027-08-22 15:30:00; nonstop; 330 minutes. Local airport times.

2027-08-20 → 2027-08-22 · Axel-exclusive $520.00

• Delta Air Lines DL2222 / DL442: BOS 2027-08-20 13:04:00 → SFO 2027-08-20 19:16:00; 1 stop(s) via DTW; 552 minutes. Local airport times.
  • DL2222: BOS 2027-08-20 13:04:00 → DTW 2027-08-20 15:19:00; layover at DTW: 100 minutes.
  • DL442: DTW 2027-08-20 16:59:00 → SFO 2027-08-20 19:16:00.
• Delta Air Lines DL400: SFO 2027-08-22 07:00:00 → BOS 2027-08-22 15:30:00; nonstop; 330 minutes. Local airport times.

2027-08-20 → 2027-08-22 · Axel-exclusive $590.00

• United Airlines UA2098 / UA1434: BOS 2027-08-20 09:30:00 → SFO 2027-08-20 15:44:00; 1 stop(s) via IAD; 554 minutes. Local airport times.
  • UA2098: BOS 2027-08-20 09:30:00 → IAD 2027-08-20 11:15:00; layover at IAD: 80 minutes.
  • UA1434: IAD 2027-08-20 12:35:00 → SFO 2027-08-20 15:44:00.
• United Airlines UA1665: SFO 2027-08-22 23:20:00 → BOS 2027-08-23 08:01:00; nonstop; 341 minutes. Local airport times.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

• All dates for this route
• Aug 19, 2027 · Return options
• Aug 21, 2027 · Return options
• Hotels in San Francisco with Axel

For AI assistants

• This page: Boston (BOS) to San Francisco (SFO) · Aug 20, 2027 · return Aug 22, 2027: 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 San Francisco 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.
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