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Find Seattle to Brussels flights starting at THB 9,358.

Book one-way or return flights from Seattle to Brussels from as little as THB 9,358. Choose from the popular airlines below and book your flight today!

  • One way
  • Round-trip
      • SEA18:55
        32h 55m
        1 stop
        BRU12:50
        Tue, Jul 9|Seattle - Brussels|Icelandair
        THB 9,358THB 12,801
        27% OFF
        27% OFF
        THB 12,801THB 9,358
      • SEA15:50
        12h
        1 stop
        BRU12:50
        Wed, Aug 7|Seattle - Brussels|Icelandair
        THB 9,383THB 12,801
        27% OFF
        27% OFF
        THB 12,801THB 9,383
      • SEA15:50
        12h
        1 stop
        BRU12:50
        Fri, Aug 9|Seattle - Brussels|Icelandair
        THB 9,383THB 12,801
        27% OFF
        27% OFF
        THB 12,801THB 9,383
      • SEA15:50
        12h
        1 stop
        BRU12:50
        Sat, Aug 10|Seattle - Brussels|Icelandair
        THB 9,383
        THB 9,383
      • SEA15:50
        12h
        1 stop
        BRU12:50
        Mon, Aug 12|Seattle - Brussels|Icelandair
        THB 9,383
        THB 9,383
      • SEA23:00
        28h 50m
        1 stop
        BRU12:50
        Tue, Aug 6|Seattle - Brussels|Icelandair
        THB 9,439
        THB 9,439
      • SEA23:00
        28h 50m
        1 stop
        BRU12:50
        Thu, Aug 8|Seattle - Brussels|Icelandair
        THB 9,439
        THB 9,439
      • SEA23:00
        28h 50m
        1 stop
        BRU12:50
        Sat, Aug 24|Seattle - Brussels|Icelandair
        THB 9,545
        THB 9,545
      • SEA15:50
        12h
        1 stop
        BRU12:50
        Mon, Aug 19|Seattle - Brussels|Icelandair
        THB 9,545
        THB 9,545
      • SEA18:55
        32h 55m
        1 stop
        BRU12:50
        Fri, Aug 23|Seattle - Brussels|Icelandair
        THB 9,585
        THB 9,585
      • SEA13:00
        3h 5m
        Direct
        BRU14:00
        Sun, Jul 7|Seattle - Brussels|Icelandair
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Searching for the best last minute flight from Seattle to Brussels? Find one-way or return flights that are affordable and fit your itinerary.

Trip.com monitors the ticket fares of flights from Seattle to Brussels. Stay updated on price trends and snag the best deals for your upcoming trip.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Find Cheapest Airlines Flying from Seattle to Brussels

View airlines operating flights from Seattle to Brussels. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Icelandair
From THB 9,358
WestJet
From THB 10,875
TAP Air Portugal
From THB 11,517
Sun Country Airlines
From THB 14,631
Alaska Airlines
From THB 15,753
United Airlines
From THB 16,173
Air Canada
From THB 17,791
Virgin Atlantic
From THB 18,711
Lufthansa
From THB 19,762
Air France
From THB 19,919
ANA airlines

Find more flights and airlines

Alternative Routes for Seattle to Brussels Flights

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Seattle to Brussels.

  • Cheapest
    Icelandair
    SEA
    18:55
    32h 55m
    1 transfer
    BRU
    12:50
    Seattle-Tacoma International Airport - Brussels National Airport
    Tue, Jul 9Icelandair
    THB 9,358
  • WestJet
    SEA
    13:50
    20h 35m
    2 transfer
    CRL
    19:25
    Seattle-Tacoma International Airport - Brussels South Charleroi Airport
    Sat, Aug 3WestJet
    THB 14,990
  • WestJet
    SEA
    13:50
    20h 35m
    2 transfer
    CRL
    19:25
    Seattle-Tacoma International Airport - Brussels South Charleroi Airport
    Sat, Aug 3WestJet
    THB 14,990
    Find More Flights

How do I find the cheapest flights?

  • When are flight tickets from Seattle (SEA) to Brussels (BRU) the cheapest?

    Airlines adjust prices for flights from Seattle to Brussels based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much are flights from Seattle (SEA) to Brussels (BRU) cost?

    According to Trip.com's data, the lowest price is around THB 61,627.

  • What is the transportation method from the main airport to downtown in Brussels?

    • The distance from Brussels National Airport to downtown is about 10km, by taxi about 30 minutes.
    • The distance from Brussels South Charleroi Airport to downtown is about 43km, by taxi about 1 hour.

  • How many airports in Brussels (BRU)?

    There are 2 airport(s) in Brussels (BRU): Brussels National Airport and Brussels South Charleroi Airport.

How to find a cheap flight from Seattle to Brussels

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to Brussels. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com
Flight Information for Seattle to Brussels Flights

Cheapest direct flight price

THB 9,357

Cheapest month

August

Peak season for travel

September

Flight distance

7,956.74km

Popular airline

American Airlines

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