Get Me There. San Francisco to Boston
The cheapest round trip from San Francisco to Boston right now is $280 — Sep 28 → 30, 2 nights, 1 stop.
Best fare
Boston Sep 28 → 30 · 2 nights · 1 stop
Above typical for this route ($225–$272) — it usually dips lower.
Prices checked on Sep 2
By month
September 2026cheapest $280
October 2026 $305
November 2026 $320
December 2026 $366
January 2027 $359
February 2027 $366
Get the best San Francisco deals by email — most Fridays, free.
Price history
8 weeks tracked · weekly lows
All dates (720 priced)
Sep 28 → 30 2 nights · 1 stop
Sep 28 → Oct 3 5 nights · 1 stop
Sep 29 → Oct 3 4 nights · 1 stop
Sep 28 → Oct 1 3 nights · 1 stop
Sep 29 → Oct 1 2 nights · 1 stop
Oct 26 → 30 4 nights · 1 stop
Sep 22 → 26 4 nights · 1 stop
Sep 30 → Oct 3 3 nights · 1 stop
Oct 5 → 7 2 nights · 1 stop
Oct 16 → 20 4 nights · 1 stop
The Friday Deal Sheet
The week's best deals from San Francisco, most Fridays — free.