$298 Cheap Flights from Seattle (SEA) to Brussels (BRU)

You can find cheap one-way flights from $298 and cheap return flights from $622 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Brussels (BRU-Brussels - National) with Expedia. One-way flights usually range from $439 to $3552, and return flights typically cost between $636 and $6687. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Seattle, WA (SEA-Seattle - Tacoma Intl.) to Brussels (BRU-Brussels - National) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

February is the cheapest month to fly from Seattle (SEA) to Brussels (BRU), with average round-trip fares around $621. This price is about 20% lower than the average throughout the year, as winter typically sees less travel. Other economical months to consider are August and September.*Averages based on flights available on Expedia in the last year.

The best times to fly from Seattle, WA (SEA) to Brussels (BRU) are February and September. February typically has return flights priced around $621, which is a good deal for international travel. September is also popular, allowing you to experience Brussels in the pleasant early autumn weather.*Prices based on flights available on Expedia in the last year.

Business class seats are offered on the SEA to BRU route. Airlines that offer business class service on this route include:

• Lufthansa
• Turkish Airlines
• United Airlines
• British Airways
• Air Canada
• Edelweiss Air
• Icelandair
• Finnair
• Air France
• Delta Air Lines

First class is available with United Airlines.

It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Brussels (BRU-Brussels - National) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.