Book United San Francisco to Boston flight deals from $279

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Search flights from San Francisco to Boston (SFO - BOS)

November

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Wednesday 7th

Return Thursday 22nd
from$ 282*Viewed: 2 hours ago

Tuesday 13th

Return Wednesday 28th
from$ 282*Viewed: 2 hours ago

Thursday 22nd

Return Friday 7th
from$ 307*Viewed: 2 hours ago

December

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Saturday 1st

Return Sunday 16th
from$ 282*Viewed: 2 hours ago

Sunday 2nd

Return Monday 17th
from$ 307*Viewed: 2 hours ago

Tuesday 25th

Return Wednesday 9th
from$ 302*Viewed: 2 hours ago

January

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Friday 18th

Return Friday 25th
from$ 279*Viewed: 23 hours ago

Friday 25th

Return Sunday 3rd
from$ 279*Viewed: 9 hours ago

Sunday 27th

Return Sunday 3rd
from$ 279*Viewed: 1 day ago
**Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply..
Downtown Boston viewed from the harbor

Plan ahead for flights from San Francisco to Boston

from
to
Type
Dates
Price*
San Francisco (SFO)
to Boston (BOS)
Roundtrip
Depart Fri 18 Jan 2019
Return Fri 25 Jan 2019
from$ 279*Viewed: 23 hours ago
San Francisco (SFO)
to Boston (BOS)
Roundtrip
Depart Fri 25 Jan 2019
Return Sun 3 Feb 2019
from$ 279*Viewed: 9 hours ago
San Francisco (SFO)
to Boston (BOS)
Roundtrip
Depart Sun 27 Jan 2019
Return Sun 3 Feb 2019
from$ 279*Viewed: 1 day ago
San Francisco (SFO)
to Boston (BOS)
Roundtrip
Depart Tue 29 Jan 2019
Return Tue 5 Feb 2019
from$ 279*Viewed: 15 hours ago
San Francisco (SFO)
to Boston (BOS)
Roundtrip
Depart Wed 6 Feb 2019
Return Wed 13 Feb 2019
from$ 279*Viewed: 1 day ago
San Francisco (SFO)
to Boston (BOS)
Roundtrip
Depart Sat 16 Feb 2019
Return Wed 20 Feb 2019
from$ 279*Viewed: 10 hours ago
San Francisco (SFO)
to Boston (BOS)
Roundtrip
Depart Sun 17 Feb 2019
Return Sun 24 Feb 2019
from$ 279*Viewed: 20 hours ago
San Francisco (SFO)
to Boston (BOS)
Roundtrip
Depart Wed 7 Nov 2018
Return Thu 22 Nov 2018
from$ 282*Viewed: 2 hours ago
San Francisco (SFO)
to Boston (BOS)
Roundtrip
Depart Tue 13 Nov 2018
Return Wed 28 Nov 2018
from$ 282*Viewed: 2 hours ago
San Francisco (SFO)
to Boston (BOS)
Roundtrip
Depart Sat 1 Dec 2018
Return Sun 16 Dec 2018
from$ 282*Viewed: 2 hours ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Boston

49 °FTuesday10/16/2018
51 °FWednesday10/17/2018
44 °FThursday10/18/2018
48 °FFriday10/19/2018
63 °FSaturday10/20/2018
50 °FSunday10/21/2018
47 °FMonday10/22/2018
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