Find cheap flights from Boston to Brussels from $321

In the last 3 days, the lowest price for a flight from Boston to Brussels was $321 for a one-way ticket and $333 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 Brussels.

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

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

Reykjavik is the most popular layover city among KAYAK users traveling from Boston to Brussels.

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 Brussels.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels 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 Brussels with an airline and back to Boston with another airline.

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 Brussels from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.