Flights San Francisco → Boston

One way · Economy · 1 adult · price per person · next 14 days from September 10, 2026

Last observed price on Aviasales for 3 of 15 dates; the lowest is $232. Prices are not guaranteed and are confirmed at booking time.

Last observed price by date

Date	Last observed price	Flight	Departure	Arrival	Stops
Thu, Sep 10	$239	Frontier Airlines F91448 (1st of 2 flights)	10:05 PM SFO (SFO)	12:09 PM (+1) Logan (BOS)	1 stop · Atlanta Hartsfield-Jackson
Fri, Sep 11	—	—	—	—	—
Sat, Sep 12	$233	Frontier Airlines F91448 (1st of 2 flights)	10:05 PM SFO (SFO)	12:09 PM (+1) Logan (BOS)	1 stop · Atlanta Hartsfield-Jackson
Sun, Sep 13	$232lowest	Frontier Airlines F91448 (1st of 2 flights)	10:05 PM SFO (SFO)	12:09 PM (+1) Logan (BOS)	1 stop · Atlanta Hartsfield-Jackson
Mon, Sep 14	—	—	—	—	—
Tue, Sep 15	—	—	—	—	—
Wed, Sep 16	—	—	—	—	—
Thu, Sep 17	—	—	—	—	—
Fri, Sep 18	—	—	—	—	—
Sat, Sep 19	—	—	—	—	—
Sun, Sep 20	—	—	—	—	—
Mon, Sep 21	—	—	—	—	—
Tue, Sep 22	—	—	—	—	—
Wed, Sep 23	—	—	—	—	—
Thu, Sep 24	—	—	—	—	—

Price not guaranteed: it is confirmed on Aviasales at booking time. How it works

San Francisco, United States (SFO, city code)

San Francisco International (SFO).

Boston, United States (BOS, city code)

Boston Logan (BOS).

FromToDeparture date