Cheap flights from San Francisco to Boston
from 147 US$
From 314 USD — compare hundreds of airlines
The cheapest month is usually 2026-08 · 147 US$
See prices for my dates →Live fares from 100+ sites — free, with no hidden fees.
About this route
Compare flights from San Francisco to Boston, a about 4,334 km route (around 5h 55m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as jetBlue, United Airlines, Virgin America operate this route.
When to buy and when to fly
Prices by date
Fares found by date — cheapest days in green.
How to get the best price
Airlines on this route
FAQ
What's the cheapest month to fly San Francisco to Boston?
It's usually 2026-08, from 147 USD. Use the price calendar to compare other dates.
How long is the flight from San Francisco to Boston?
A nonstop flight takes about 5h 55m and covers around 4,334 km. Connecting itineraries take longer.
Are there direct flights from San Francisco to Boston?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from San Francisco to Boston?
jetBlue, United Airlines, Virgin America operate this route, among others. Compare them all in the results.
When should I book San Francisco–Boston flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.
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