$513 Find cheap flights from San Sebastian to Boston

In the last 3 days, the lowest price for a flight from San Sebastian to Boston was $513 for a one-way ticket and $733 for a round-trip.

Yes, you’ll need a passport to travel to Boston from San Sebastian.

We unfortunately don’t have that data for this specific route.

oneworld, and Star Alliance are the airline alliances operating flights between San Sebastian and Boston, with oneworld being the most commonly used for this route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Sebastian to Boston.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from San Sebastian is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back to San Sebastian with another airline. Booking your flights between San Sebastian and BOS can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from San Sebastian up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.