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Cheap flights from San Francisco to Boston

Fares from $147 in February 2027. Compare every month below, then book with the site you like.

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Cheapest San Francisco to Boston fares by month

Lowest price per person found in recent searches. Prices change often and are checked when you book.

San Francisco to Boston at a glance

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Frequently asked questions

How much is a flight from San Francisco to Boston?
The cheapest fare we found recently is $147 per person, departing Feb 2 on Alaska Airlines. Prices change daily, so search your dates to see today's fares.
What is the cheapest month to fly from San Francisco to Boston?
February 2027 is currently the cheapest month, from $147. November 2026 is the most expensive, from $267.
Are there direct flights from San Francisco to Boston?
The cheapest fares we found recently have at least one stop. Nonstop flights may still exist at a higher price; tick "Direct only" in the search to check.
Which airlines fly from San Francisco to Boston?
The cheapest recent fares on this route were on Frontier, Alaska Airlines.
How long is the flight from San Francisco to Boston?
San Francisco and Boston are about 2,698 miles apart, so a nonstop flight takes roughly 6h 15m. Flights with a stop take longer, depending on the connection.
How do I find the cheapest flight from San Francisco to Boston?
Search your dates on Gotoesy. We list fares from several booking sites sorted cheapest first, show nearby dates when your day has no saved fare, and send you straight to the seller to book.

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