Boston to San Francisco: what the flight costs
In the last 60 days we checked this route 3 times. The typical round trip was $352 per person and the lowest $339, taxes and fees included.
| Per person | |
|---|---|
| Lowest seen | $339 |
| Typical (median) | $352 |
| Price checks, 60 days | 3 |
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Trips we picked on this route
$403 $339 per person, round trip, taxes and fees included You save $64 (16%)
the highest fare we saw for these dates
Every fare we found in the last 30 days
| Checked | Trip dates | Per person | Airline | Stops | Duration | Source |
|---|---|---|---|---|---|---|
| Oct 12, 2026 | Nov 14–21, 2026 | $366 | AS | with a stop | 18h 37m | Kiwi.com |
| Oct 12, 2026 | Nov 14–21, 2026 | $339 | Frontier | with a stop | 12h 23m | Google Flights |
| Oct 12, 2026 | Nov 14–21, 2026 | $352 | F9 + AS | with a stop | 12h 23m | Kiwi.com |
About San Francisco
San Francisco packs the Golden Gate Bridge, cable cars, Alcatraz and a pioneering food scene into a compact city of hills and bay views.
San Francisco from every city: when to go, where to stay, what to do
Questions about Boston to San Francisco
What does a round trip from Boston to San Francisco usually cost?
Over the last 60 days the typical price we found was $352 per person, taxes and fees included, across 3 checks; the lowest was $339.
When is the best time to fly from Boston to San Francisco?
San Francisco is at its best in April, May, September, October and November. Avoid July, August: Foggy, chilly summer with the heaviest crowds
Do I need a passport to fly from Boston to San Francisco?
No, a government photo ID is enough for US citizens.