$281+ Cheap flights from Washington to Belgium
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRU
May 11 — May 181
Round-trip
1 adult, Economy
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Cheapest flights from Washington to BelgiumExplore the most affordable flight options available from Washington to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2026.
Explore the most affordable flight options available from Washington to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2026.
This Gotogate deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 5/71:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 4/8![Icelandair logo]()
$581
This Gotogate deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 5/71:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 4/9![Icelandair logo]()
$594
This Gotogate deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Wed 5/201:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 4/10![Icelandair logo]()
$628
This FlightHub deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:10 pm
SEA
- BRU
1 stop17h 15m
Turkish Airlines
Thu 5/77:20 am
BRU
- SEA
1 stop18h 55m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$637
This Gotogate deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Fri 10/231:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 4/10![Icelandair logo]()
$642
This KAYAK deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/223:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Tue 5/261:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 4/7![Icelandair logo]()
$651
This KAYAK deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 5/211:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 4/10![Icelandair logo]()
$653
This Gotogate deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Sun 9/201:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 4/8![Icelandair logo]()
$654
This KAYAK deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Sun 5/241:50 pm
BRU
- SEA
1 stop30h 55m
Icelandair
Deal found 4/10![Icelandair logo]()
$655
This Air Canada deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:10 pm
PDX
- BRU
2 stops53h 45m
Air Canada
Thu 11/1210:00 am
BRU
- PDX
2 stops41h 05m
Air Canada
Deal found 4/11![Air Canada logo]()
$745
This Gotogate deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:15 pm
PDX
- BRU
2 stops20h 45m
Multiple Airlines
Wed 11/47:00 am
BRU
- PDX
2 stops20h 30m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$753
This Air Canada deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3010:59 pm
PDX
- BRU
2 stops48h 51m
Air Canada
Thu 11/1210:00 am
BRU
- PDX
2 stops47h 02m
Air Canada
Deal found 4/11![Air Canada logo]()
$756
Best flights from Washington to BelgiumDiscover carefully curated flight deals from Washington to Belgium that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 11, 2026.
Discover carefully curated flight deals from Washington to Belgium that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 11, 2026.
This Turkish Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:10 pm
SEA
- BRU
1 stop17h 15m
Turkish Airlines
Tue 10/67:20 am
BRU
- SEA
1 stop18h 55m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$659
This United Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:38 am
SEA
- BRU
3 stops26h 22m
United Airlines
Thu 5/1412:00 pm
BRU
- SEA
2 stops20h 29m
United Airlines
Deal found 4/9![United Airlines logo]()
$784
This KLM deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:05 pm
PDX
- BRU
1 stop16h 35m
KLM
Wed 10/2110:25 am
BRU
- PDX
1 stop33h 45m
KLM
Deal found 4/6![KLM logo]()
$809
This Mytrip deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/273:40 pm
SEA
- CRL
2 stops19h 55m
Multiple Airlines
Wed 5/139:20 am
CRL
- SEA
2 stops20h 48m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$817
This Scandinavian Airlines deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:00 pm
PDX
- BRU
2 stops20h 30m
Scandinavian Airlines
Mon 9/215:45 am
BRU
- PDX
3 stops24h 50m
Scandinavian Airlines
Deal found 4/10![Scandinavian Airlines logo]()
$933
This British Airways deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/183:17 pm
SEA
- BRU
2 stops18h 53m
British Airways
Mon 6/158:50 pm
BRU
- SEA
1 stop23h 45m
British Airways
Deal found 4/7![British Airways logo]()
$965
This Icelandair deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/63:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Wed 7/151:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 4/6![Icelandair logo]()
$1,009
This Delta deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2010:55 pm
PDX
- BRU
1 stop23h 45m
Delta
Wed 8/59:45 am
BRU
- PDX
1 stop18h 11m
Delta
Deal found 4/11![Delta logo]()
$1,023
This Finnair deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:20 pm
PDX
- BRU
2 stops24h 15m
Multiple Airlines
Mon 9/217:05 pm
BRU
- PDX
2 stops32h 56m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$826
This United Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:55 am
SEA
- BRU
3 stops19h 20m
United Airlines
Thu 5/77:00 am
BRU
- SEA
2 stops16h 20m
United Airlines
Deal found 4/6![United Airlines logo]()
$870
This British Airways deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:00 am
PDX
- BRU
2 stops22h 10m
Multiple Airlines
Fri 9/1810:45 am
BRU
- PDX
1 stop15h 55m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$842
This United Airlines deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/112:26 pm
SEA
- BRU
2 stops20h 34m
United Airlines
Tue 8/259:55 am
BRU
- SEA
1 stop20h 12m
United Airlines
Deal found 4/10![United Airlines logo]()
$885
This Mytrip deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
Thu 5/76:35 am
CRL
- SEA
2 stops18h 25m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$860
This Scandinavian Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:00 am
PDX
- BRU
3 stops22h 35m
Scandinavian Airlines
Wed 10/215:45 am
BRU
- PDX
3 stops24h 42m
Scandinavian Airlines
Deal found 4/6![Scandinavian Airlines logo]()
$1,051
This Delta deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:35 am
PDX
- BRU
1 stop16h 05m
Delta
Thu 7/96:20 am
BRU
- PDX
2 stops22h 44m
Delta
Deal found 4/11![Delta logo]()
$1,061
This United Airlines deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/302:10 pm
SEA
- BRU
1 stop13h 35m
United Airlines
Tue 5/512:00 pm
BRU
- SEA
1 stop17h 53m
United Airlines
Deal found 4/11![United Airlines logo]()
$893
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:45 pm
SEA
- BRU
2 stops19h 15m
United Airlines
Wed 5/2712:00 pm
BRU
- SEA
1 stop17h 46m
United Airlines
Deal found 4/7![United Airlines logo]()
$899
This Mytrip deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/73:40 pm
SEA
- CRL
2 stops20h 50m
Multiple Airlines
Wed 5/139:20 am
CRL
- SEA
2 stops20h 48m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$934
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:45 pm
SEA
- BRU
2 stops19h 15m
United Airlines
Fri 5/2210:15 am
BRU
- SEA
1 stop21h 24m
United Airlines
Deal found 4/7![United Airlines logo]()
$899
This Mytrip deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/213:30 pm
PDX
- CRL
2 stops21h 00m
Multiple Airlines
Fri 5/299:50 am
CRL
- PDX
3 stops42h 20m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$939
This United Airlines deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/210:45 am
SEA
- BRU
2 stops24h 15m
United Airlines
Tue 6/169:55 am
BRU
- SEA
1 stop20h 13m
United Airlines
Deal found 4/11![United Airlines logo]()
$1,043
This British Airways deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/207:30 pm
PDX
- BRU
1 stop14h 40m
Multiple Airlines
Wed 8/57:05 am
BRU
- PDX
2 stops25h 17m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$1,064
This Kiwi.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:10 pm
SEA
- CRL
1 stop28h 15m
Multiple Airlines
Wed 7/157:40 pm
CRL
- SEA
2 stops27h 00m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$1,113
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/127:10 pm
SEA
- CRL
1 stop17h 05m
Multiple Airlines
Wed 8/1211:50 am
CRL
- SEA
2 stops31h 50m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$1,119
This Kiwi.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1210:30 am
SEA
- CRL
2 stops27h 15m
Multiple Airlines
Fri 6/199:50 am
CRL
- SEA
1 stop16h 20m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$1,131
This Kiwi.com deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:40 pm
SEA
- CRL
2 stops17h 55m
Multiple Airlines
Fri 5/229:50 am
CRL
- SEA
1 stop16h 20m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$1,137
This Mytrip deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/243:40 pm
SEA
- CRL
2 stops16h 20m
Multiple Airlines
Thu 5/76:35 am
CRL
- SEA
2 stops18h 25m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$1,259
This Mytrip deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:10 am
PDX
- CRL
3 stops27h 05m
Multiple Airlines
Wed 5/138:55 pm
CRL
- PDX
2 stops25h 40m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$1,287
This Mytrip deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:45 am
SEA
- CRL
3 stops19h 50m
Multiple Airlines
Tue 5/1910:00 pm
CRL
- SEA
3 stops32h 08m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$1,292
This Mytrip deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/273:30 pm
PDX
- CRL
3 stops19h 10m
Multiple Airlines
Sun 10/189:05 am
CRL
- PDX
2 stops17h 50m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$1,478
Last-minute flights from Washington to BelgiumDiscover last-minute flight deals from Washington to Belgium. Data last updated April 11, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to Belgium. Data last updated April 11, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/93:30 pm
PDX
- BRU
1 stop12h 25m
Icelandair
Fri 4/171:50 pm
BRU
- PDX
1 stop13h 10m
Icelandair
Deal found 4/6![Icelandair logo]()
$766
This oojo deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Thu 4/231:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 4/8![Icelandair logo]()
$656
This KAYAK deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/223:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Thu 5/211:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 4/7![Icelandair logo]()
$651
This KAYAK deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Sun 5/241:50 pm
BRU
- SEA
1 stop30h 55m
Icelandair
Deal found 4/10![Icelandair logo]()
$655
This Gotogate deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 5/71:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 4/9![Icelandair logo]()
$594
This Gotogate deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 5/71:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 4/8![Icelandair logo]()
$581
This Mytrip deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/273:40 pm
SEA
- CRL
2 stops19h 55m
Multiple Airlines
Wed 5/139:20 am
CRL
- SEA
2 stops20h 48m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$817
This FlightHub deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:10 pm
SEA
- BRU
1 stop17h 15m
Turkish Airlines
Thu 5/77:20 am
BRU
- SEA
1 stop18h 55m
Turkish Airlines
Deal found 4/6![Turkish Airlines logo]()
$637
This oojo deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Fri 5/81:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 4/11![Icelandair logo]()
$657
This British Airways deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:30 pm
PDX
- BRU
1 stop15h 55m
Multiple Airlines
Wed 5/1311:00 am
BRU
- PDX
2 stops21h 48m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$844
This Gotogate deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Wed 5/201:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 4/10![Icelandair logo]()
$628
This Gotogate deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:05 pm
PDX
- BRU
1 stop32h 50m
Icelandair
Wed 5/271:50 pm
BRU
- PDX
1 stop13h 05m
Icelandair
Deal found 4/7![Icelandair logo]()
$840
One-way flights from Washington to BelgiumSearch for one-way flight options from Washington to Belgium. Find affordable one-way fares based on user searches. Data last updated April 11, 2026.
Search for one-way flight options from Washington to Belgium. Find affordable one-way fares based on user searches. Data last updated April 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:00 pm
SEA
- CRL
3 stops39h 55m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:00 pm
SEA
- CRL
3 stops28h 45m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/177:00 pm
SEA
- CRL
3 stops42h 55m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$298
This Trip.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Deal found 4/9![Icelandair logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:00 pm
SEA
- CRL
3 stops28h 20m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Deal found 4/9![Icelandair logo]()
$307
This oojo deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Deal found 4/8![Icelandair logo]()
$309
This oojo deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Deal found 4/9![Icelandair logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:00 pm
SEA
- BRU
2 stops30h 15m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 4/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:00 pm
SEA
- BRU
2 stops54h 15m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:00 pm
SEA
- CRL
3 stops39h 40m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:00 pm
SEA
- BRU
3 stops29h 55m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$321
Find flight deals from Washington to Belgium
Keep the following information in mind while searching for Washington to Belgium flight deals. Data was last updated April 11, 2026.
Round-trip from | $581 (Gotogate) |
|---|---|
One-way from | $281 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $559 |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington to Belgium that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 11, 2026.
Use the filters below to find and compare flights from Washington to Belgium that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Thu 10/1
7:10 pm-9:25 pm
1 stop17h 15m
Brussels Bruxelles-National
Tue 10/6
7:20 am-5:15 pm
1 stop18h 55m
$659
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Thu 5/7
8:38 am-8:00 pm
3 stops26h 22m
Brussels Bruxelles-National
Thu 5/14
12:00 pm-11:29 pm
2 stops20h 29m
$784
PortlandBrussels
PDX - BRU
PDXBRU
Portland
Wed 9/30
1:05 pm-2:40 pm
1 stop16h 35m
Brussels Bruxelles-National
Wed 10/21
10:25 am-11:10 am
1 stop33h 45m
$809
SeattleBrussels
SEA - CRL
SEACRL
Seattle/Tacoma Intl
Mon 4/27
3:40 pm-8:35 pm
2 stops19h 55m
Charleroi Brussels
Wed 5/13
9:20 am-9:08 pm
2 stops20h 48m
$817
PortlandBrussels
PDX - BRU
PDXBRU
Portland
Tue 9/8
1:20 pm-10:35 pm
2 stops24h 15m
Brussels Bruxelles-National
Mon 9/21
7:05 pm-7:01 pm
2 stops32h 56m
$826
PortlandBrussels
PDX - BRU
PDXBRU
Portland
Sun 9/6
7:00 am-2:10 pm
2 stops22h 10m
Brussels Bruxelles-National
Fri 9/18
10:45 am-5:40 pm
1 stop15h 55m
$842
SeattleBrussels
SEA - CRL
SEACRL
Seattle/Tacoma Intl
Thu 4/23
7:00 pm-9:30 pm
2 stops17h 30m
Charleroi Brussels
Thu 5/7
6:35 am-4:00 pm
2 stops18h 25m
$860
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Wed 4/29
8:55 am-1:15 pm
3 stops19h 20m
Brussels Bruxelles-National
Thu 5/7
7:00 am-2:20 pm
2 stops16h 20m
$870
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Tue 8/11
2:26 pm-8:00 pm
2 stops20h 34m
Brussels Bruxelles-National
Tue 8/25
9:55 am-9:07 pm
1 stop20h 12m
$885
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Thu 4/30
2:10 pm-12:45 pm
1 stop13h 35m
Brussels Bruxelles-National
Tue 5/5
12:00 pm-8:53 pm
1 stop17h 53m
$893
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington to Belgium
Have a flexible travel schedule? Discover the best time to fly to Belgium from Washington with our price prediction graph.
SEA-BRU
PDX-BRU
SEA-CRL
PDX-CRL
PDX-ANR
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Washington to Belgium
USWA-BE0
SEA-BRU
PDX-BRU
SEA-CRL
PDX-CRL
What is the cheapest month to book a flight from State of Washington to Belgium?
Currently, January is the cheapest month in which you can book a flight from State of Washington to Belgium (average of $378). Flying from State of Washington to Belgium in June is currently the most expensive (average of $505). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Related info for your journey
Find useful and relevant information for your journey from Washington to Belgium. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
Alternative routes for Washington to Belgium
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Belgium by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Washington to Belgium by cabin class
Find flights from Washington to Belgium, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Washington and Belgium flights
Browse other Washington and Belgium flight options. Last updated on April 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Belgium
Find the right flight back to Washington after your stay in Belgium
Washington to Belgium flights
Consider these flights traveling from Washington to Belgium.
Top 8 airlines flying from Washington to Belgium
Discover the top 8 airlines that operate flights from Washington to Belgium. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$383 | Average$481 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$421 | Average$689 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$470 | Average$735 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$481 | Average$699 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$482 | Average$632 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$488 | Average$491 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$494 | Average$645 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$518 | Average$680 | FlexibilityNo cancel fee | On-time67% |