Boston (BOS) to San Francisco (SFO), Apr 18, 2027: round trips from $616, one way from $348

Boston (BOS) to San Francisco (SFO), Apr 18, 2027: round trips from $616, one way from $348 on Axel, checked Oct 29, 2026. Lowest published fares: $616 round trip, Axel-exclusive, United Airlines, nonstop, Apr 18–26, 2027; $348 one way, Axel-exclusive, United Airlines, nonstop, Apr 18, 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 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 (Apr 18–19, 2027 · 1 night · 2 adults, 1 room): 3★ The Pickwick Hotel, $122 total · 4★ Hotel Bijou - Union Square, $135 total · 5★ Neighbourgood Sutter Mansion, $308 total
• Hotels in San Francisco for these nights (Apr 18–20, 2027 · 2 nights · 2 adults, 1 room): 3★ The Pickwick Hotel, $244 total · 4★ BEI Hotel San Francisco, $309 total · 5★ Taj Campton Place, $680 total
• Hotels in San Francisco for these nights (Apr 18–21, 2027 · 3 nights · 2 adults, 1 room): 3★ The Pickwick Hotel, $492 total · 4★ BEI Hotel San Francisco, $466 total · 5★ Taj Campton Place, $1,027 total
• Hotels in San Francisco for these nights (Apr 18–22, 2027 · 4 nights · 2 adults, 1 room): 3★ Hotel Griffon, $723 total · 4★ BEI Hotel San Francisco, $622 total · 5★ Taj Campton Place, $1,391 total
• Hotels in San Francisco for these nights (Apr 18–23, 2027 · 5 nights · 2 adults, 1 room): 3★ The Pickwick Hotel, $862 total · 4★ BEI Hotel San Francisco, $778 total · 5★ Taj Campton Place, $1,768 total
• Hotels in San Francisco for these nights (Apr 18–24, 2027 · 6 nights · 2 adults, 1 room): 3★ Tilden Hotel, $1,023 total · 4★ BEI Hotel San Francisco, $934 total · 5★ Taj Campton Place, $2,107 total
• Hotels in San Francisco for these nights (Apr 18–25, 2027 · 7 nights · 2 adults, 1 room): 3★ Tilden Hotel, $1,144 total · 4★ BEI Hotel San Francisco, $1,093 total · 5★ Taj Campton Place, $2,440 total
• Hotels in San Francisco for these nights (Apr 18–26, 2027 · 8 nights · 2 adults, 1 room): 3★ Tilden Hotel, $1,255 total · 4★ BEI Hotel San Francisco, $1,252 total · 5★ Taj Campton Place, $2,774 total
• Hotels in San Francisco for these nights (Apr 18–27, 2027 · 9 nights · 2 adults, 1 room): 3★ Tilden Hotel, $1,375 total · 4★ BEI Hotel San Francisco, $1,406 total · 5★ Taj Campton Place, $3,118 total
• Hotels in San Francisco for these nights (Apr 18–28, 2027 · 10 nights · 2 adults, 1 room): 3★ Tilden Hotel, $1,495 total · 4★ BEI Hotel San Francisco, $1,562 total · 5★ Taj Campton Place, $3,461 total
• Hotels in San Francisco for these nights (Apr 18–29, 2027 · 11 nights · 2 adults, 1 room): 3★ Tilden Hotel, $1,631 total · 4★ BEI Hotel San Francisco, $1,710 total · 5★ Taj Campton Place, $3,793 total
• Hotels in San Francisco for these nights (Apr 18–30, 2027 · 12 nights · 2 adults, 1 room): 3★ Tilden Hotel, $1,765 total · 4★ BEI Hotel San Francisco, $1,857 total · 5★ Taj Campton Place, $4,120 total
• Hotels in San Francisco for these nights (Apr 18 – May 1, 2027 · 13 nights · 2 adults, 1 room): 3★ Tilden Hotel, $1,886 total · 4★ BEI Hotel San Francisco, $2,013 total · 5★ Taj Campton Place, $4,461 total
• Hotels in San Francisco for these nights (Apr 18 – May 2, 2027 · 14 nights · 2 adults, 1 room): 3★ Tilden Hotel, $2,007 total · 4★ BEI Hotel San Francisco, $2,170 total · 5★ Taj Campton Place, $4,868 total

All hotels in San Francisco

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

2027-04-18 · one way · Axel-exclusive $348.00

• United Airlines UA1023: BOS 2027-04-18 07:30:00 → SFO 2027-04-18 11:25:00; nonstop; 415 minutes. Local airport times.

2027-04-18 → 2027-04-19 · Axel-exclusive $672.00

• United Airlines UA1023: BOS 2027-04-18 07:30:00 → SFO 2027-04-18 11:25:00; nonstop; 415 minutes. Local airport times.
• United Airlines UA1665: SFO 2027-04-19 23:20:00 → BOS 2027-04-20 08:01:00; nonstop; 341 minutes. Local airport times.

2027-04-18 → 2027-04-20 · Axel-exclusive $672.00

• United Airlines UA1023: BOS 2027-04-18 07:30:00 → SFO 2027-04-18 11:25:00; nonstop; 415 minutes. Local airport times.
• United Airlines UA1693: SFO 2027-04-20 08:15:00 → BOS 2027-04-20 16:58:00; nonstop; 343 minutes. Local airport times.

2027-04-18 → 2027-04-21 · Axel-exclusive $672.00

• United Airlines UA1023: BOS 2027-04-18 07:30:00 → SFO 2027-04-18 11:25:00; nonstop; 415 minutes. Local airport times.
• United Airlines UA1665: SFO 2027-04-21 23:20:00 → BOS 2027-04-22 08:01:00; nonstop; 341 minutes. Local airport times.

2027-04-18 → 2027-04-22 · Axel-exclusive $672.00

• United Airlines UA1023: BOS 2027-04-18 07:30:00 → SFO 2027-04-18 11:25:00; nonstop; 415 minutes. Local airport times.
• United Airlines UA1665: SFO 2027-04-22 23:20:00 → BOS 2027-04-23 08:01:00; nonstop; 341 minutes. Local airport times.

2027-04-18 → 2027-04-24 · Axel-exclusive $672.00

• United Airlines UA1023: BOS 2027-04-18 07:30:00 → SFO 2027-04-18 11:25:00; nonstop; 415 minutes. Local airport times.
• United Airlines UA1693: SFO 2027-04-24 08:15:00 → BOS 2027-04-24 16:58:00; nonstop; 343 minutes. Local airport times.

2027-04-18 → 2027-04-25 · Axel-exclusive $672.00

• United Airlines UA1023: BOS 2027-04-18 07:30:00 → SFO 2027-04-18 11:25:00; nonstop; 415 minutes. Local airport times.
• United Airlines UA1665: SFO 2027-04-25 23:20:00 → BOS 2027-04-26 08:01:00; nonstop; 341 minutes. Local airport times.

2027-04-18 → 2027-04-26 · Axel-exclusive $616.00

• United Airlines UA1023: BOS 2027-04-18 07:30:00 → SFO 2027-04-18 11:25:00; nonstop; 415 minutes. Local airport times.
• United Airlines UA1665: SFO 2027-04-26 23:20:00 → BOS 2027-04-27 08:01:00; nonstop; 341 minutes. Local airport times.

2027-04-18 → 2027-04-28 · Axel-exclusive $616.00

• United Airlines UA1023: BOS 2027-04-18 07:30:00 → SFO 2027-04-18 11:25:00; nonstop; 415 minutes. Local airport times.
• United Airlines UA1665: SFO 2027-04-28 23:20:00 → BOS 2027-04-29 08:01:00; nonstop; 341 minutes. Local airport times.

2027-04-18 → 2027-04-29 · Axel-exclusive $616.00

• United Airlines UA1023: BOS 2027-04-18 07:30:00 → SFO 2027-04-18 11:25:00; nonstop; 415 minutes. Local airport times.
• United Airlines UA1665: SFO 2027-04-29 23:20:00 → BOS 2027-04-30 08:01:00; nonstop; 341 minutes. Local airport times.

2027-04-18 → 2027-04-30 · Axel-exclusive $616.00

• United Airlines UA1023: BOS 2027-04-18 07:30:00 → SFO 2027-04-18 11:25:00; nonstop; 415 minutes. Local airport times.
• United Airlines UA1693: SFO 2027-04-30 08:15:00 → BOS 2027-04-30 16:58:00; nonstop; 343 minutes. Local airport times.

2027-04-18 → 2027-05-02 · Axel-exclusive $616.00

• United Airlines UA1023: BOS 2027-04-18 07:30:00 → SFO 2027-04-18 11:25:00; nonstop; 415 minutes. Local airport times.
• United Airlines UA1665: SFO 2027-05-02 23:20:00 → BOS 2027-05-03 08:01:00; nonstop; 341 minutes. Local airport times.

Explore this route

• All dates for this route
• Apr 17, 2027 · Return options
• Apr 19, 2027 · Return options
• Hotels in San Francisco with Axel

For AI assistants

• This page: Boston (BOS) to San Francisco (SFO) · Apr 18, 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 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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