$210+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRU
Apr 12 — Apr 191
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Belgium with Cheapflights
1. Tell us where you want to go
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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 March 13, 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 March 13, 2026.
This oojo deal was found by Cheapflights users on 3/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 4/161:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 3/7![Icelandair logo]()
$438
This FlightHub deal was found by Cheapflights users on 3/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 4/231:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 3/9![Icelandair logo]()
$442
This Gotogate deal was found by Cheapflights users on 3/9. 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 4/301:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 3/9![Icelandair logo]()
$446
This Surpr!ce deal was found by Cheapflights users on 3/10. 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 Surpr!ce 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
Fri 5/11:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 3/10![Icelandair logo]()
$472
This oojo deal was found by Cheapflights users on 3/9. 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.
Thu 4/167:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 4/231:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 3/9![Icelandair logo]()
$476
This Mytrip deal was found by Cheapflights users on 3/9. 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.
Tue 3/317:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 4/91:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 3/9![Icelandair logo]()
$497
This oojo deal was found by Cheapflights users on 3/8. 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.
Mon 5/47:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Mon 5/111:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 3/8![Icelandair logo]()
$507
This KAYAK deal was found by Cheapflights users on 3/9. 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 KAYAK 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
Mon 5/251:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 3/9![Icelandair logo]()
$510
This FlightHub deal was found by Cheapflights users on 3/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Mon 5/111:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 3/8![Icelandair logo]()
$511
This Mytrip deal was found by Cheapflights users on 3/12. 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 3/303:40 pm
SEA
- CRL
2 stops19h 55m
Multiple Airlines
Fri 4/108:50 am
CRL
- SEA
3 stops34h 35m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$681
This Mytrip deal was found by Cheapflights users on 3/9. 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 4/307:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
Mon 5/48:50 am
CRL
- SEA
2 stops20h 50m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$775
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Thu 5/77:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
Mon 5/1810:00 pm
CRL
- SEA
1 stop28h 10m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$854
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 March 13, 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 March 13, 2026.
This Finnair deal was found by Cheapflights users on 3/12. 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.
Wed 5/67:09 am
SEA
- BRU
2 stops26h 11m
Finnair
Fri 5/1511:20 am
BRU
- SEA
1 stop13h 40m
Finnair
Deal found 3/12![Finnair logo]()
$584
This KLM deal was found by Cheapflights users on 3/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/301:50 pm
SEA
- BRU
1 stop15h 50m
KLM
Tue 5/58:05 am
BRU
- SEA
1 stop12h 37m
KLM
Deal found 3/8![KLM logo]()
$586
This British Airways deal was found by Cheapflights users on 3/8. 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.
Thu 4/301:19 pm
SEA
- BRU
2 stops17h 51m
British Airways
Tue 5/57:55 pm
BRU
- SEA
1 stop24h 40m
British Airways
Deal found 3/8![British Airways logo]()
$590
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:15 am
SEA
- BRU
2 stops22h 25m
Delta
Tue 5/56:20 am
BRU
- SEA
1 stop14h 22m
Delta
Deal found 3/9![Delta logo]()
$591
This Finnair deal was found by Cheapflights users on 3/9. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:00 am
SEA
- BRU
2 stops27h 20m
Multiple Airlines
Mon 4/207:05 pm
BRU
- SEA
2 stops33h 31m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$594
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 4/148:55 am
SEA
- BRU
3 stops26h 05m
United Airlines
Mon 4/209:55 am
BRU
- SEA
2 stops42h 05m
United Airlines
Deal found 3/9![United Airlines logo]()
$610
This Delta deal was found by Cheapflights users on 3/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/75:30 am
SEA
- BRU
2 stops41h 10m
Delta
Sun 4/193:10 pm
BRU
- SEA
2 stops28h 48m
Delta
Deal found 3/7![Delta logo]()
$608
This United Airlines deal was found by Cheapflights users on 3/9. 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 4/238:55 am
SEA
- BRU
2 stops19h 20m
United Airlines
Thu 4/308:30 am
BRU
- SEA
1 stop12h 50m
United Airlines
Deal found 3/9![United Airlines logo]()
$627
This Mytrip deal was found by Cheapflights users on 3/12. 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 3/303:40 pm
SEA
- CRL
2 stops19h 55m
Multiple Airlines
Fri 4/108:50 am
CRL
- SEA
3 stops34h 35m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$681
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Fri 4/1711:58 am
SEA
- BRU
3 stops34h 12m
United Airlines
Sat 4/258:30 am
BRU
- SEA
1 stop12h 50m
United Airlines
Deal found 3/11![United Airlines logo]()
$639
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Thu 5/77:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
Mon 5/1810:00 pm
CRL
- SEA
1 stop28h 10m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$854
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sat 4/187:20 am
SEA
- CRL
2 stops39h 45m
Multiple Airlines
Fri 5/19:50 am
CRL
- SEA
1 stop16h 20m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$869
This Kiwi.com deal was found by Cheapflights users on 3/7. 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.
Mon 4/67:00 pm
SEA
- CRL
2 stops35h 30m
Multiple Airlines
Wed 4/159:20 am
CRL
- SEA
1 stop16h 50m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$917
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/67:10 pm
SEA
- CRL
1 stop28h 15m
Multiple Airlines
Thu 4/237:05 am
CRL
- SEA
2 stops19h 50m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,002
This Mytrip deal was found by Cheapflights users on 3/8. 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 4/86:50 pm
SEA
- CRL
2 stops18h 25m
Multiple Airlines
Thu 4/237:05 am
CRL
- SEA
2 stops22h 35m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$1,032
This Mytrip deal was found by Cheapflights users on 3/7. 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.
Tue 4/78:00 am
SEA
- CRL
3 stops28h 15m
Multiple Airlines
Thu 4/167:05 am
CRL
- SEA
2 stops22h 35m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$1,058
This Mytrip deal was found by Cheapflights users on 3/9. 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.
Mon 4/68:00 am
SEA
- CRL
2 stops28h 00m
Multiple Airlines
Tue 4/219:00 am
CRL
- SEA
3 stops22h 53m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,060
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 4/197:10 pm
SEA
- CRL
1 stop17h 15m
Multiple Airlines
Wed 4/229:45 pm
CRL
- SEA
2 stops29h 10m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$1,063
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Wed 3/259:05 pm
SEA
- CRL
1 stop31h 30m
Multiple Airlines
Fri 4/38:50 am
CRL
- SEA
2 stops20h 01m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$1,066
This Mytrip deal was found by Cheapflights users on 3/9. 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.
Tue 4/143:40 pm
SEA
- CRL
2 stops20h 35m
Multiple Airlines
Mon 4/208:50 am
CRL
- SEA
2 stops20h 50m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,074
This Kiwi.com deal was found by Cheapflights users on 3/7. 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 4/72:10 pm
SEA
- CRL
2 stops22h 05m
Multiple Airlines
Wed 4/159:20 am
CRL
- SEA
1 stop16h 50m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$1,076
Last-minute flights from Seattle to BelgiumDiscover last-minute flight deals from Seattle to Belgium. Data last updated March 13, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Belgium. Data last updated March 13, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 3/12. 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 3/303:40 pm
SEA
- CRL
2 stops19h 55m
Multiple Airlines
Fri 4/108:50 am
CRL
- SEA
3 stops34h 35m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$681
This Mytrip deal was found by Cheapflights users on 3/9. 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.
Tue 3/317:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 4/91:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 3/9![Icelandair logo]()
$497
This Kiwi.com deal was found by Cheapflights users on 3/7. 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.
Mon 4/67:00 pm
SEA
- CRL
2 stops35h 30m
Multiple Airlines
Wed 4/159:20 am
CRL
- SEA
1 stop16h 50m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$917
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/67:10 pm
SEA
- CRL
1 stop28h 15m
Multiple Airlines
Thu 4/237:05 am
CRL
- SEA
2 stops19h 50m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,002
This oojo deal was found by Cheapflights users on 3/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 4/161:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 3/7![Icelandair logo]()
$438
This FlightHub deal was found by Cheapflights users on 3/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 4/231:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 3/9![Icelandair logo]()
$442
This oojo deal was found by Cheapflights users on 3/9. 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.
Wed 4/83:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Thu 4/231:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 3/9![Icelandair logo]()
$556
This oojo deal was found by Cheapflights users on 3/9. 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.
Thu 4/167:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Thu 4/231:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 3/9![Icelandair logo]()
$476
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sat 4/187:20 am
SEA
- CRL
2 stops39h 45m
Multiple Airlines
Fri 5/19:50 am
CRL
- SEA
1 stop16h 20m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$869
This Gotogate deal was found by Cheapflights users on 3/9. 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 4/301:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 3/9![Icelandair logo]()
$446
This Surpr!ce deal was found by Cheapflights users on 3/10. 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 Surpr!ce 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
Fri 5/11:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 3/10![Icelandair logo]()
$472
This Mytrip deal was found by Cheapflights users on 3/9. 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 4/307:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
Mon 5/48:50 am
CRL
- SEA
2 stops20h 50m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$775
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 March 13, 2026.
Search for one-way flight options from Seattle to Belgium. Find affordable one-way fares based on user searches. Data last updated March 13, 2026.
This Mytrip deal was found by Cheapflights users on 3/8. 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.
Thu 4/237:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Deal found 3/8![Icelandair logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Thu 4/237:00 pm
SEA
- CRL
2 stops29h 25m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$236
This Mytrip deal was found by Cheapflights users on 3/11. 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.
Tue 4/286:55 pm
SEA
- BRU
1 stop16h 50m
Aer Lingus
Deal found 3/11![Aer Lingus logo]()
$239
This Mytrip deal was found by Cheapflights users on 3/11. 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.
Sat 4/257:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Deal found 3/11![Icelandair logo]()
$241
This Trip.com deal was found by Cheapflights users on 3/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:00 pm
SEA
- BRU
2 stops30h 15m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Tue 4/283:40 pm
SEA
- CRL
2 stops20h 35m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Thu 4/231:30 pm
SEA
- BRU
3 stops46h 25m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Tue 4/283:40 pm
SEA
- BRU
3 stops32h 55m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 5/81:28 pm
SEA
- CRL
3 stops40h 52m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$437
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Wed 3/1810:08 am
SEA
- CRL
3 stops50h 47m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$486
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Wed 3/258:13 am
SEA
- CRL
3 stops44h 22m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$510
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 4/88:55 am
SEA
- CRL
3 stops28h 20m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$522
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 March 13, 2026.
Round-trip from | $438 (oojo) |
|---|---|
One-way from | $210 (Mytrip) |
Popular in | December |
Cheapest in | October |
Average price | $601 |
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 March 13, 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
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Wed 5/6
7:09 am-6:20 pm
2 stops26h 11m
Brussels Bruxelles-National
Fri 5/15
11:20 am-4:00 pm
1 stop13h 40m
$584
Quickest round-trip
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Thu 4/30
1:50 pm-2:40 pm
1 stop15h 50m
Brussels Bruxelles-National
Tue 5/5
8:05 am-11:42 am
1 stop12h 37m
$586
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Thu 4/30
1:19 pm-4:10 pm
2 stops17h 51m
Brussels Bruxelles-National
Tue 5/5
7:55 pm-11:35 am
1 stop24h 40m
$590
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Thu 4/30
7:15 am-2:40 pm
2 stops22h 25m
Brussels Bruxelles-National
Tue 5/5
6:20 am-11:42 am
1 stop14h 22m
$591
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Tue 4/14
6:00 am-6:20 pm
2 stops27h 20m
Brussels Bruxelles-National
Mon 4/20
7:05 pm-7:36 pm
2 stops33h 31m
$594
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Tue 4/7
5:30 am-7:40 am
2 stops41h 10m
Brussels Bruxelles-National
Sun 4/19
3:10 pm-10:58 am
2 stops28h 48m
$608
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Tue 4/14
8:55 am-8:00 pm
3 stops26h 05m
Brussels Bruxelles-National
Mon 4/20
9:55 am-7:00 pm
2 stops42h 05m
$610
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Thu 4/23
8:55 am-1:15 pm
2 stops19h 20m
Brussels Bruxelles-National
Thu 4/30
8:30 am-12:20 pm
1 stop12h 50m
$627
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
Fri 4/17
11:58 am-7:10 am
3 stops34h 12m
Brussels Bruxelles-National
Sat 4/25
8:30 am-12:20 pm
1 stop12h 50m
$639
SeattleBrussels
SEA - CRL
SEACRL
Seattle/Tacoma Intl
Mon 3/30
3:40 pm-8:35 pm
2 stops19h 55m
Charleroi Brussels
Fri 4/10
8:50 am-10:25 am
3 stops34h 35m
$681
Showing 1-10 of 38 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 $378). Flying from Seattle to Belgium in July is currently the most expensive (average of $481). 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.
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 March 13, 2026.
Peruse reviews from past customers who have flown with KLM,United Airlines, andIcelandair 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.
Entertainment
7.1
Food
7.3
Overall
7.8
Crew
8.4
Comfort
7.6
Boarding
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Food
7.3
Overall
7.8
Crew
8.4
Comfort
7.6
Boarding
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Food
7.3
Overall
7.8
Crew
8.4
Comfort
7.6
Boarding
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Food
7.3
Overall
7.8
Crew
8.4
Comfort
7.6
Boarding
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Food
7.3
Overall
7.8
Crew
8.4
Comfort
7.6
Boarding
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Food
7.3
Overall
7.8
Crew
8.4
Comfort
7.6
Boarding
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
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 March 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 8 airlines flying from Seattle to Belgium
Discover the top 8 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 March 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$383 | Average$476 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$421 | Average$727 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$481 | Average$699 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$482 | Average$632 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$483 | Average$723 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$488 | Average$491 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$494 | Average$640 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$518 | Average$724 | FlexibilityNo cancel fee | On-time67% |