$205+ Cheap flights from Seattle (SEA) 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRU
Aug 2 — Aug 91
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Belgium with Cheapflights
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Cheapest flights from Seattle to BelgiumExplore the most affordable flight options available from Seattle to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2026.
Explore the most affordable flight options available from Seattle to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2026.
This Gotogate deal was found by Cheapflights users on 6/30. 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 10/157:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Tue 10/2712:50 pm
BRU
- SEA
1 stop13h 10m
Icelandair
Deal found 6/30![Icelandair logo]()
$562
This Gotogate deal was found by Cheapflights users on 6/28. 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 8/33:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Wed 8/191:50 pm
BRU
- SEA
1 stop30h 55m
Icelandair
Deal found 6/28![Icelandair logo]()
$564
This Cheapflightsfares deal was found by Cheapflights users on 6/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/183:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Thu 10/2912:50 pm
BRU
- SEA
1 stop13h 10m
Icelandair
Deal found 6/30![Icelandair logo]()
$565
This oojo deal was found by Cheapflights users on 6/28. 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 10/57:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Sun 10/181:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 6/28![Icelandair logo]()
$567
This Gotogate deal was found by Cheapflights users on 7/1. 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 8/67:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 8/201:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 7/1![Icelandair logo]()
$568
This Flighttix deal was found by Cheapflights users on 7/1. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Fri 8/211:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 7/1![Icelandair logo]()
$570
This oojo deal was found by Cheapflights users on 7/1. 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.
Wed 8/57:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 8/201:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 7/1![Icelandair logo]()
$575
This oojo deal was found by Cheapflights users on 7/1. 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.
Wed 9/211:25 pm
SEA
- BRU
1 stop28h 30m
Icelandair
Wed 9/91:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 7/1![Icelandair logo]()
$580
This Mytrip deal was found by Cheapflights users on 7/1. 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 8/1710:40 am
SEA
- CRL
3 stops24h 55m
Multiple Airlines
Mon 8/319:15 pm
CRL
- SEA
3 stops45h 25m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$810
This Mytrip deal was found by Cheapflights users on 7/1. 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 8/67:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
Thu 8/207:05 am
CRL
- SEA
2 stops22h 35m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$836
This Mytrip deal was found by Cheapflights users on 7/2. 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 10/53:40 pm
SEA
- CRL
2 stops18h 00m
Multiple Airlines
Tue 10/136:55 am
CRL
- SEA
2 stops22h 45m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$899
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Sat 8/2910:40 am
SEA
- CRL
3 stops26h 00m
Multiple Airlines
Fri 9/49:50 am
CRL
- SEA
3 stops41h 55m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$904
Best flights from Seattle to BelgiumDiscover carefully curated flight deals from Seattle to Belgium that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2026.
Discover carefully curated flight deals from Seattle to Belgium that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2026.
This Icelandair deal was found by Cheapflights users on 6/30. 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.
Sun 10/183:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Thu 10/221:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 6/30![Icelandair logo]()
$594
This United deal was found by Cheapflights users on 7/2. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/37:00 am
SEA
- BRU
1 stop17h 00m
Multiple Airlines
Wed 8/197:40 pm
BRU
- SEA
2 stops31h 52m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$750
This Delta deal was found by Cheapflights users on 6/29. 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 8/311:59 pm
SEA
- BRU
1 stop22h 41m
Delta
Wed 8/193:10 pm
BRU
- SEA
1 stop29h 27m
Delta
Deal found 6/29![Delta logo]()
$751
This United Airlines deal was found by Cheapflights users on 6/28. 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.
Mon 8/311:02 am
SEA
- BRU
2 stops17h 13m
United Airlines
Wed 8/192:25 pm
BRU
- SEA
1 stop30h 30m
United Airlines
Deal found 6/28![United Airlines logo]()
$770
This Icelandair deal was found by Cheapflights users on 6/28. 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 8/243:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Fri 8/281:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 6/28![Icelandair logo]()
$678
This Delta deal was found by Cheapflights users on 7/1. 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.
Thu 8/611:59 pm
SEA
- BRU
1 stop22h 41m
Delta
Thu 8/209:45 am
BRU
- SEA
1 stop18h 20m
Delta
Deal found 7/1![Delta logo]()
$754
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 10/183:00 pm
SEA
- BRU
2 stops20h 00m
United Airlines
Thu 10/229:10 am
BRU
- SEA
2 stops39h 52m
United Airlines
Deal found 7/2![United Airlines logo]()
$777
This Delta deal was found by Cheapflights users on 6/28. 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.
Sun 8/95:45 pm
SEA
- BRU
1 stop11h 55m
Delta
Mon 8/243:10 pm
BRU
- SEA
1 stop29h 27m
Delta
Deal found 6/28![Delta logo]()
$759
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Sat 8/295:50 am
SEA
- CRL
3 stops30h 50m
Multiple Airlines
Fri 9/49:50 am
CRL
- SEA
2 stops20h 17m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$910
This Mytrip deal was found by Cheapflights users on 6/29. 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 10/93:40 pm
SEA
- CRL
2 stops21h 55m
Multiple Airlines
Wed 10/149:20 am
CRL
- SEA
2 stops20h 44m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$946
This Mytrip deal was found by Cheapflights users on 6/29. 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 8/177:00 pm
SEA
- CRL
2 stops16h 35m
Multiple Airlines
Fri 8/289:50 am
CRL
- SEA
2 stops32h 50m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$950
This Mytrip deal was found by Cheapflights users on 6/28. 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 8/52:10 pm
SEA
- CRL
2 stops18h 35m
Multiple Airlines
Mon 8/176:20 pm
CRL
- SEA
2 stops26h 35m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$967
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Sat 8/157:00 am
SEA
- CRL
3 stops23h 35m
Multiple Airlines
Fri 8/214:55 pm
CRL
- SEA
2 stops27h 50m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$983
This Mytrip deal was found by Cheapflights users on 7/2. 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 10/186:50 pm
SEA
- CRL
2 stops15h 50m
Multiple Airlines
Thu 10/228:35 am
CRL
- SEA
2 stops17h 35m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,019
This Mytrip deal was found by Cheapflights users on 6/30. 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 10/153:00 pm
SEA
- CRL
3 stops21h 30m
Multiple Airlines
Tue 10/278:10 am
CRL
- SEA
3 stops38h 10m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$1,035
This Mytrip deal was found by Cheapflights users on 6/30. 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 10/810:30 am
SEA
- CRL
3 stops19h 55m
Multiple Airlines
Mon 10/199:15 pm
CRL
- SEA
2 stops24h 05m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$1,051
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 8/97:10 pm
SEA
- CRL
1 stop17h 05m
Multiple Airlines
Mon 8/249:40 pm
CRL
- SEA
2 stops45h 00m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$1,070
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 8/37:10 pm
SEA
- CRL
1 stop28h 15m
Multiple Airlines
Wed 8/199:20 am
CRL
- SEA
2 stops18h 40m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$1,082
Last-minute flights from Seattle to BelgiumDiscover last-minute flight deals from Seattle to Belgium. Data last updated July 3, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Belgium. Data last updated July 3, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 7/3. 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.
Sat 7/47:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Sat 7/181:50 pm
BRU
- SEA
1 stop30h 55m
Icelandair
Deal found 7/3![Icelandair logo]()
$621
This Gotogate deal was found by Cheapflights users on 6/28. 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 8/33:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Wed 8/191:50 pm
BRU
- SEA
1 stop30h 55m
Icelandair
Deal found 6/28![Icelandair logo]()
$564
This oojo deal was found by Cheapflights users on 7/1. 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.
Wed 8/57:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 8/201:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 7/1![Icelandair logo]()
$575
This Gotogate deal was found by Cheapflights users on 7/1. 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 8/611:25 pm
SEA
- BRU
1 stop28h 30m
Icelandair
Thu 8/201:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 7/1![Icelandair logo]()
$565
This Mytrip deal was found by Cheapflights users on 7/1. 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 8/67:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
Thu 8/207:05 am
CRL
- SEA
2 stops22h 35m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$836
This Mytrip deal was found by Cheapflights users on 6/28. 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 8/97:00 am
SEA
- CRL
3 stops29h 15m
Multiple Airlines
Mon 8/248:50 am
CRL
- SEA
2 stops18h 05m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$939
This Gotogate deal was found by Cheapflights users on 7/2. 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 8/167:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Sun 8/231:50 pm
BRU
- SEA
1 stop30h 55m
Icelandair
Deal found 7/2![Icelandair logo]()
$602
This Gotogate deal was found by Cheapflights users on 7/1. 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 8/1711:25 pm
SEA
- BRU
1 stop28h 30m
Icelandair
Mon 8/311:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 7/1![Icelandair logo]()
$612
This Mytrip deal was found by Cheapflights users on 7/1. 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 8/1710:40 am
SEA
- CRL
3 stops24h 55m
Multiple Airlines
Mon 8/319:15 pm
CRL
- SEA
3 stops45h 25m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$810
This Mytrip deal was found by Cheapflights users on 6/29. 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 8/177:00 am
SEA
- CRL
3 stops24h 25m
Multiple Airlines
Fri 8/289:50 am
CRL
- SEA
2 stops32h 50m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$926
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Sat 8/2910:40 am
SEA
- CRL
3 stops26h 00m
Multiple Airlines
Fri 9/49:50 am
CRL
- SEA
3 stops41h 55m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$904
One-way flights from Seattle to BelgiumSearch for one-way flight options from Seattle to Belgium. Find affordable one-way fares based on user searches. Data last updated July 3, 2026.
Search for one-way flight options from Seattle to Belgium. Find affordable one-way fares based on user searches. Data last updated July 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 10/78:00 am
SEA
- CRL
3 stops20h 55m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$205
This oojo deal was found by Cheapflights users on 7/1. 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 7/303:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Deal found 7/1![Icelandair logo]()
$253
This oojo deal was found by Cheapflights users on 7/3. 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.
Tue 8/411:25 pm
SEA
- BRU
1 stop28h 30m
Icelandair
Deal found 7/3![Icelandair logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 10/78:00 am
SEA
- BRU
3 stops20h 15m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/267:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Deal found 6/29![Icelandair logo]()
$274
This oojo deal was found by Cheapflights users on 7/2. 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.
Fri 9/43:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Deal found 7/2![Icelandair logo]()
$314
This oojo deal was found by Cheapflights users on 6/29. 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 6/29![Icelandair logo]()
$315
This oojo deal was found by Cheapflights users on 6/29. 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.
Wed 7/227:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Deal found 6/29![Icelandair logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/257:00 pm
SEA
- CRL
2 stops17h 15m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 8/2611:25 pm
SEA
- CRL
2 stops37h 05m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$319
This Trip.com deal was found by Cheapflights users on 7/2. 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 10/73:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Deal found 7/2![Icelandair logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 8/57:00 pm
SEA
- CRL
3 stops29h 55m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$330
Find flight deals from Seattle to Belgium
Keep the following information in mind while searching for Seattle to Belgium flight deals. Data was last updated July 3, 2026.
Round-trip from | $562 (Gotogate) |
|---|---|
One-way from | $205 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $623 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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 July 3, 2026.
Use the filters below to find and compare flights from Seattle to Belgium that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Sun 10/18
3:40 pm-12:55 pm
1 stop12h 15m
Brussels Bruxelles-National
Thu 10/22
1:50 pm-5:55 pm
1 stop13h 05m
$594
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Mon 8/24
3:40 pm-12:55 pm
1 stop12h 15m
Brussels Bruxelles-National
Fri 8/28
1:50 pm-5:55 pm
1 stop13h 05m
$678
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Mon 8/3
7:00 am-9:00 am
1 stop17h 00m
Brussels Bruxelles-National
Wed 8/19
7:40 pm-6:32 pm
2 stops31h 52m
$750
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Mon 8/3
11:59 pm-7:40 am
1 stop22h 41m
Brussels Bruxelles-National
Wed 8/19
3:10 pm-11:37 am
1 stop29h 27m
$751
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Thu 8/6
11:59 pm-7:40 am
1 stop22h 41m
Brussels Bruxelles-National
Thu 8/20
9:45 am-7:05 pm
1 stop18h 20m
$754
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Sun 8/9
5:45 pm-2:40 pm
1 stop11h 55m
Brussels Bruxelles-National
Mon 8/24
3:10 pm-11:37 am
1 stop29h 27m
$759
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Mon 8/3
11:02 am-1:15 pm
2 stops17h 13m
Brussels Bruxelles-National
Wed 8/19
2:25 pm-11:55 am
1 stop30h 30m
$770
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Sun 10/18
3:00 pm-8:00 pm
2 stops20h 00m
Brussels Bruxelles-National
Thu 10/22
9:10 am-4:02 pm
2 stops39h 52m
$777
SeattleBrussels
SEA - CRL
SEACRL
Seattle/Tacoma Intl
Sat 8/29
5:50 am-9:40 pm
3 stops30h 50m
Charleroi Brussels
Fri 9/4
9:50 am-9:07 pm
2 stops20h 17m
$910
SeattleBrussels
SEA - CRL
SEACRL
Seattle/Tacoma Intl
Fri 10/9
3:40 pm-10:35 pm
2 stops21h 55m
Charleroi Brussels
Wed 10/14
9:20 am-9:04 pm
2 stops20h 44m
$946
Showing 1-10 of 33 resultsSorted by cheapest first
Best time to book a flight from Seattle to Belgium
Have a flexible travel schedule? Discover the best time to fly to Belgium from Seattle with our price prediction graph.
SEA-BRU
SEA-CRL
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 Seattle to Belgium
SEA-BE0
SEA-BRU
SEA-CRL
What is the cheapest month to book a flight from Seattle to Belgium?
Currently, January is the cheapest month in which you can book a flight from Seattle to Belgium (average of $375). Flying from Seattle to Belgium in June is currently the most expensive (average of $693). 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.
How far ahead should I book a flight from Seattle to Belgium?
Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Belgium. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Belgium
Get insights into the airlines that provide service to Belgium. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belgium. Reviews last updated July 3, 2026.
Peruse reviews from past customers who have flown with KLM,Delta, andUnited Airlines from Seattle to Belgium to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.3
Overall
7.8
Comfort
7.7
Boarding
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Food
7.3
Overall
7.8
Comfort
7.7
Boarding
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Food
7.3
Overall
7.8
Comfort
7.7
Boarding
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Food
7.3
Overall
7.8
Comfort
7.7
Boarding
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Food
7.3
Overall
7.8
Comfort
7.7
Boarding
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Food
7.3
Overall
7.8
Comfort
7.7
Boarding
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Related info for your journey
Find useful and relevant information for your journey from Seattle to Belgium. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to Belgium
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Complete your trip
Complete your trip to Belgium by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Belgium by cabin class
Find flights from Seattle to Belgium, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Belgium flights
Browse other Seattle and Belgium flight options. Last updated on July 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Seattle to Belgium
Discover the top 6 airlines that operate flights from Seattle 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 July 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$383 | Average$524 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$421 | Average$620 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$470 | Average$733 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$481 | Average$713 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$482 | Average$716 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$494 | Average$672 | FlexibilityNo cancel fee | On-time76% |