Boston to San Francisco: what the flight costs
In the last 60 days we checked this route 6 times. The typical return was £276 per person and the lowest £256, taxes and fees included.
| Per person | |
|---|---|
| Lowest seen | £256 |
| Typical (median) | £276 |
| Price checks, 60 days | 6 |
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Trips we picked on this route
Just found · from BostonWorth it, if
San Francisco
14 – 21 Nov 2026 · 7 nights
- Chelsea Inn, rated 8.2 by 1,885 guests
- Free cancellation at Chelsea Inn
- Typical highs 58–62°F, lows near 50°F this time of year
£1,927 for two · 7 nights · flights, hotel, taxes, fees & the resort fee
Flights £556 + hotel £1,202 + resort fee £169, taxes in · a checked bag each adds about £106
Alaska · with a stop · 18h 14m
The catch: Not nonstop: a stop on the way, 18h 14m in all.
Worth it if you want to walk, eat and see things; skip it if you want to switch off.
Every fare we found in the last 30 days
| Checked | Trip dates | Per person | Airline | Stops | Duration | Source |
|---|---|---|---|---|---|---|
| 15 Oct 2026 | 14 – 21 Nov 2026 | £292 | Frontier | with a stop | 12h 23m | Google Flights |
| 15 Oct 2026 | 14 – 21 Nov 2026 | £278 | AS | with a stop | 18h 14m | Kiwi.com |
| 15 Oct 2026 | 14 – 21 Nov 2026 | £275 | AS | with a stop | 9h 53m | Kiwi.com |
| 12 Oct 2026 | 14 – 21 Nov 2026 | £276 | AS | with a stop | 18h 37m | Kiwi.com |
| 12 Oct 2026 | 14 – 21 Nov 2026 | £256 | Frontier | with a stop | 12h 23m | Google Flights |
| 12 Oct 2026 | 14 – 21 Nov 2026 | £265 | 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 return from Boston to San Francisco usually cost?
Over the last 60 days the typical price we found was £276 per person, taxes and fees included, across 6 checks; the lowest was £256.
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 passport needed for travellers from the United States: a government photo ID is enough for San Francisco.
Prices converted from US dollars at the rate of 15 Oct 2026.