
$426 Cheap KLM flights from Seattle to Brussels (SEA to BRU)
Find The Best Day To Fly from Seattle to Brussels
Amazing KLM SEA to BRU Flight Deals
The cheapest flights to Brussels - National found within the past 7 days were $610 round trip and $426 one way. Prices and availability subject to change. Additional terms may apply.
BRU From SEA Economy Coach Packages on Similar Airlines



Discover our best KLM flight from Seattle SEA to Brussels BRU
To find the best deals on flights to Seattle from Brussels with KLM, just enter your travel dates, filter by KLM, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from Seattle SEA to Brussels BRU with KLM
If you’re planning a round trip, booking return flights with KLM is usually the most cost-effective option. With airfares ranging from $610 to $869, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way KLM flights from Seattle SEA to Brussels BRU
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way KLM flight from Seattle to Brussels costs from $426. Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Brussels BRU from Seattle SEA with KLM
To find a cheap KLM flight from Seattle SEA to Brussels BRU, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on KLM flights from Seattle SEA to Brussels BRU
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as July, or if you book a flight with a stopover.
Find nonstop flights from Seattle SEA to Brussels BRU with KLM
If you’re keen to be on Brussels soil fast, don’t waste time with a stopover—filter your search results to show direct KLM flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for KLM flights from Seattle SEA to Brussels BRU
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Brussels BRU from Seattle SEA with KLM on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
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Popular KLM Flight Routes from SEA
Top KLM Flight Routes from BRU
Top Flights for KLM originating from SEA
Domestic
- New Orleans to Dublin (MSY - DUB)
- Chicago to Rome (ORD - FCO)
- New York to Tel Aviv (JFK - TLV)
- New York to Tokyo (JFK - NRT)
- Los Angeles to Rome (LAX - FCO)
- New York to Athens (JFK - ATH)
- Chicago to Paris (ORD - CDG)
- Los Angeles to London (LAX - LHR)
- Miami to London (MIA - LHR)
- Boston to Lisbon (BOS - LIS)
International
- New York to Barcelona (JFK - BCN)
- Boston to Dublin (BOS - DUB)
- New York to Rome (JFK - FCO)
- New York to Tel Aviv (JFK - TLV)
- Boston to London (BOS - LHR)
- Los Angeles to London (LAX - LHR)
- Miami to Madrid (MIA - MAD)
- Los Angeles to London (LAX - LHR)
- Chicago to Rome (ORD - FCO)
- New York to Bangkok (JFK - BKK)