Book United Boston to San Francisco flight deals from $237

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

November

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Friday 16th

Return Saturday 1st
from$ 282*Viewed: 2 hours ago

Monday 19th

Return Tuesday 4th
from$ 282*Viewed: 2 hours ago

Friday 30th

Return Saturday 15th
from$ 290*Viewed: 2 hours ago

December

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Sunday 2nd

Return Thursday 6th
from$ 279*Viewed: 41 minutes ago

Thursday 13th

Return Sunday 16th
from$ 279*Viewed: 50 minutes ago

Friday 14th

Return Monday 17th
from$ 279*Viewed: 53 minutes ago

January

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Tuesday 8th

Return Wednesday 23rd
from$ 297*Viewed: 2 hours ago

Tuesday 15th

Return Wednesday 30th
from$ 297*Viewed: 2 hours ago

Wednesday 30th

Return Monday 4th
from$ 272*Viewed: 14 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..

Plan ahead for flights from Boston to San Francisco

from
to
Type
Dates
Price*
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Wed 6 Feb 2019
Return Tue 26 Feb 2019
from$ 237*Viewed: 1 day ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Wed 30 Jan 2019
Return Mon 4 Feb 2019
from$ 272*Viewed: 14 hours ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Sun 2 Dec 2018
Return Thu 6 Dec 2018
from$ 279*Viewed: 41 minutes ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Thu 13 Dec 2018
Return Sun 16 Dec 2018
from$ 279*Viewed: 50 minutes ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Fri 14 Dec 2018
Return Mon 17 Dec 2018
from$ 279*Viewed: 53 minutes ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Fri 16 Nov 2018
Return Sat 1 Dec 2018
from$ 282*Viewed: 2 hours ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Mon 19 Nov 2018
Return Tue 4 Dec 2018
from$ 282*Viewed: 2 hours ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Sat 1 Dec 2018
Return Sun 16 Dec 2018
from$ 282*Viewed: 2 hours ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Fri 30 Nov 2018
Return Sat 15 Dec 2018
from$ 290*Viewed: 2 hours ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Sun 9 Dec 2018
Return Fri 14 Dec 2018
from$ 290*Viewed: 14 minutes 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 San Francisco

56 °FThursday10/18/2018
66 °FFriday10/19/2018
63 °FSaturday10/20/2018
69 °FSunday10/21/2018
59 °FMonday10/22/2018
56 °FTuesday10/23/2018
61 °FWednesday10/24/2018
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