Book United Boston to San Francisco flight deals from $303

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

July

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Sunday 15th

Return Monday 30th
from$ 303*Viewed: 1 hour ago

Tuesday 17th

Return Wednesday 1st
from$ 303*Viewed: 1 hour ago

Tuesday 24th

Return Wednesday 8th
from$ 303*Viewed: 1 hour ago

August

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Saturday 25th

Return Sunday 9th
from$ 303*Viewed: 1 hour ago

Tuesday 28th

Return Wednesday 12th
from$ 303*Viewed: 1 hour ago

Thursday 30th

Return Friday 14th
from$ 303*Viewed: 1 hour ago

September

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Tuesday 11th

Return Wednesday 26th
from$ 303*Viewed: 1 hour ago

Friday 14th

Return Saturday 29th
from$ 303*Viewed: 1 hour ago

Saturday 15th

Return Sunday 30th
from$ 303*Viewed: 1 hour 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 Sun 15 Jul 2018
Return Mon 30 Jul 2018
from$ 303*Viewed: 1 hour ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Tue 17 Jul 2018
Return Wed 1 Aug 2018
from$ 303*Viewed: 1 hour ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Tue 24 Jul 2018
Return Wed 8 Aug 2018
from$ 303*Viewed: 1 hour ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Tue 14 Aug 2018
Return Wed 29 Aug 2018
from$ 303*Viewed: 1 hour ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Tue 21 Aug 2018
Return Wed 5 Sep 2018
from$ 303*Viewed: 1 hour ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Thu 23 Aug 2018
Return Fri 7 Sep 2018
from$ 303*Viewed: 1 hour ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Fri 24 Aug 2018
Return Sat 8 Sep 2018
from$ 303*Viewed: 1 hour ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Sat 25 Aug 2018
Return Sun 9 Sep 2018
from$ 303*Viewed: 1 hour ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Sun 26 Aug 2018
Return Mon 10 Sep 2018
from$ 303*Viewed: 1 hour ago
Boston (BOS)
to San Francisco (SFO)
Roundtrip
Depart Mon 27 Aug 2018
Return Tue 11 Sep 2018
from$ 303*Viewed: 1 hour 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 °FMonday06/18/2018
65 °FTuesday06/19/2018
64 °FWednesday06/20/2018
66 °FThursday06/21/2018
72 °FFriday06/22/2018
78 °FSaturday06/23/2018
82 °FSunday06/24/2018
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