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Boston to San Francisco is a 4,341 km route with a -3 hour timezone difference. Most flights have 1 stop. The shortest flight time we've seen is 8h 26m, with an average of 8h 34m.
The cheapest economy flight we're currently tracking is $239. Over the last 30 days, prices have risen 19.9% (recent average: $364).
Airlines operating Boston to San Francisco include Frontier. We're tracking trips ranging from 7 to 30 days.
We'll notify you when fares on BOS→SFO drop.