Cheap flights from Boise to Half Moon Bay from CA $93

View CA $93 flight on Tue, Aug. 19, 2025Opens in a new window

Popular airlines from Boise to Half Moon Bay

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Cheap flights from Boise (BOI) to Half Moon Bay (SJC)

Prices were available within the past 7 days and start at CA $93 for one-way flights and CA $202 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Aug. 16 - Mon, Aug. 18
BOI
Boise
SFO
San Francisco
CA $202 Roundtrip, found 3 days ago
CA $202
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Aug. 16 from Boise to San Francisco, returning Mon, Aug. 18, priced at CA $202 found 3 days ago
Delta
Sat, Aug. 16 - Mon, Aug. 18
BOI
Boise
SFO
San Francisco
CA $228 Roundtrip, found 3 days ago
CA $228
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Aug. 16 from Boise to San Francisco, returning Mon, Aug. 18, priced at CA $228 found 3 days ago
Delta
Sat, Aug. 16 - Mon, Aug. 18
BOI
Boise
SFO
San Francisco
CA $243 Roundtrip, found 3 days ago
CA $243
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Aug. 16 from Boise to San Francisco, returning Mon, Aug. 18, priced at CA $243 found 3 days ago
Alaska Airlines
Sat, Aug. 16 - Mon, Aug. 18
BOI
Boise
SFO
San Francisco
CA $245 Roundtrip, found 3 days ago
CA $245
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Aug. 16 from Boise to San Francisco, returning Mon, Aug. 18, priced at CA $245 found 3 days ago
Alaska Airlines
Sat, Aug. 16 - Mon, Aug. 18
BOI
Boise
SFO
San Francisco
CA $246 Roundtrip, found 3 days ago
CA $246
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Aug. 16 from Boise to San Francisco, returning Mon, Aug. 18, priced at CA $246 found 3 days ago
American Airlines
Sat, Aug. 16 - Mon, Aug. 18
BOI
Boise
SFO
San Francisco
CA $272 Roundtrip, found 3 days ago
CA $272
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Aug. 16 from Boise to San Francisco, returning Mon, Aug. 18, priced at CA $272 found 3 days ago

Find the cheapest month to fly from Boise (BOI) to San Francisco (SFO)

September is typically the cheapest month to fly

From CA $178 - CA $351 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.