$305 Find Cheap Flights from Boston to Bilbao - Compare and Save

In the last 5 days, the lowest price for a flight from Boston to Bilbao was $305 for a one-way ticket and $639 for a round-trip.

Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Bilbao.

Boston airport is called Boston Logan Intl and the only airport in Bilbao is Bilbao.

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

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

The two airlines most popular with KAYAK users for flights from Boston to Bilbao are KLM and Delta. With an average price for the route of $1,048 and an overall rating of 7.8, KLM is the most popular choice. Delta is also a great choice for the route, with an average price of $999 and an overall rating of 7.8.

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 Boston to Bilbao.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from Boston 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 Bilbao with an airline and back to Boston with another airline. Booking your flights between Boston and BIO 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 Bilbao from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.