Boston (BOS) to San Francisco (SFO) flight deal in economy from $123
BOSLogan International Airport
Boston, United States
SFOSan Francisco International Airport
San Francisco, United States
$219 USD
-44%$123 USD
Verified 13 days agoAugust 2026
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Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price
Tuesday, August 18th, 2026
Outbound Flights
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