$443+ Cheap flights from Belgium to Seattle (SEA)
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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — SEA
Aug 8 — Aug 151
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Belgium to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Belgium to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Belgium to SeattleExplore the most affordable flight options available from Belgium to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.
Explore the most affordable flight options available from Belgium to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.
This Expedia deal was found by Cheapflights users on 7/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:20 am
BRU
- SEA
1 stop12h 25m
Scandinavian Airlines
Fri 9/113:55 pm
SEA
- BRU
1 stop18h 55m
Scandinavian Airlines
Deal found 7/7![Scandinavian Airlines logo]()
$707
This Kiwi.com deal was found by Cheapflights users on 7/7. 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.
Fri 9/1110:20 am
BRU
- SEA
1 stop12h 25m
Scandinavian Airlines
Sat 9/263:55 pm
SEA
- BRU
1 stop13h 40m
Scandinavian Airlines
Deal found 7/7![Scandinavian Airlines logo]()
$729
This Mytrip deal was found by Cheapflights users on 7/6. 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 10/53:15 pm
BRU
- SEA
1 stop31h 30m
Scandinavian Airlines
Sun 10/113:55 pm
SEA
- BRU
1 stop22h 05m
Scandinavian Airlines
Deal found 7/6![Scandinavian Airlines logo]()
$741
This Mytrip deal was found by Cheapflights users on 7/6. 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.
Thu 9/103:15 pm
BRU
- SEA
1 stop31h 30m
Scandinavian Airlines
Tue 9/223:55 pm
SEA
- BRU
1 stop17h 35m
Scandinavian Airlines
Deal found 7/6![Scandinavian Airlines logo]()
$743
This Kiwi.com deal was found by Cheapflights users on 7/6. 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.
Tue 9/810:20 am
BRU
- SEA
1 stop12h 25m
Scandinavian Airlines
Tue 9/223:55 pm
SEA
- BRU
1 stop13h 40m
Scandinavian Airlines
Deal found 7/6![Scandinavian Airlines logo]()
$746
This lastminute.com deal was found by Cheapflights users on 7/8. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/210:55 am
BRU
- SEA
2 stops35h 50m
Scandinavian Airlines
Tue 10/63:55 pm
SEA
- BRU
1 stop32h 45m
Scandinavian Airlines
Deal found 7/8![Scandinavian Airlines logo]()
$749
This oojo deal was found by Cheapflights users on 7/5. 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 9/169:10 pm
BRU
- SEA
2 stops49h 35m
Scandinavian Airlines
Sat 9/193:55 pm
SEA
- BRU
1 stop22h 05m
Scandinavian Airlines
Deal found 7/5![Scandinavian Airlines logo]()
$754
This Kiwi.com deal was found by Cheapflights users on 7/7. 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.
Sun 9/69:05 am
CRL
- SEA
2 stops39h 55m
Multiple Airlines
Sun 9/277:10 pm
SEA
- CRL
1 stop17h 15m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$858
This Mytrip deal was found by Cheapflights users on 7/6. 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.
Fri 8/288:30 pm
CRL
- SEA
2 stops26h 15m
Multiple Airlines
Fri 9/113:55 pm
SEA
- CRL
2 stops18h 45m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$898
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 9/148:50 am
CRL
- SEA
2 stops16h 10m
Multiple Airlines
Sun 9/277:10 pm
SEA
- CRL
1 stop17h 15m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$927
This Mytrip deal was found by Cheapflights users on 7/6. 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 10/58:15 pm
CRL
- SEA
2 stops26h 30m
Multiple Airlines
Sun 10/113:40 pm
SEA
- CRL
2 stops22h 15m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$936
Best flights from Belgium to SeattleDiscover carefully curated flight deals from Belgium to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 9, 2026.
Discover carefully curated flight deals from Belgium to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 9, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 7/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:20 am
BRU
- SEA
1 stop12h 25m
Scandinavian Airlines
Sun 9/273:55 pm
SEA
- BRU
1 stop17h 35m
Scandinavian Airlines
Deal found 7/7![Scandinavian Airlines logo]()
$782
This United Airlines deal was found by Cheapflights users on 7/6. 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 8/58:30 am
BRU
- SEA
1 stop12h 25m
United Airlines
Tue 8/1110:41 am
SEA
- BRU
2 stops17h 34m
United Airlines
Deal found 7/6![United Airlines logo]()
$888
This Mytrip deal was found by Cheapflights users on 7/6. 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.
Fri 8/288:30 pm
CRL
- SEA
2 stops26h 15m
Multiple Airlines
Fri 9/113:55 pm
SEA
- CRL
2 stops18h 45m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$898
This Delta deal was found by Cheapflights users on 7/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:05 am
BRU
- SEA
2 stops19h 59m
Delta
Wed 10/71:40 pm
SEA
- BRU
2 stops16h 00m
Delta
Deal found 7/8![Delta logo]()
$898
This Scandinavian Airlines deal was found by Cheapflights users on 7/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:45 am
BRU
- SEA
1 stop17h 00m
Scandinavian Airlines
Sat 9/263:55 pm
SEA
- BRU
1 stop13h 40m
Scandinavian Airlines
Deal found 7/7![Scandinavian Airlines logo]()
$782
This Scandinavian Airlines deal was found by Cheapflights users on 7/4. 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.
Fri 8/2810:20 am
BRU
- SEA
1 stop12h 25m
Scandinavian Airlines
Fri 9/113:55 pm
SEA
- BRU
2 stops35h 05m
Scandinavian Airlines
Deal found 7/4![Scandinavian Airlines logo]()
$792
This United Airlines deal was found by Cheapflights users on 7/7. 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.
Sat 9/198:35 am
BRU
- SEA
1 stop12h 20m
United Airlines
Thu 9/247:00 am
SEA
- BRU
1 stop17h 00m
United Airlines
Deal found 7/7![United Airlines logo]()
$893
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 9/148:50 am
CRL
- SEA
2 stops16h 10m
Multiple Airlines
Sun 9/277:10 pm
SEA
- CRL
1 stop17h 15m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$927
This United Airlines deal was found by Cheapflights users on 7/7. 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.
Sat 9/198:35 am
BRU
- SEA
1 stop12h 20m
United Airlines
Mon 9/2810:42 am
SEA
- BRU
1 stop13h 18m
United Airlines
Deal found 7/7![United Airlines logo]()
$893
This Mytrip deal was found by Cheapflights users on 7/6. 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 10/58:15 pm
CRL
- SEA
2 stops26h 30m
Multiple Airlines
Sun 10/113:40 pm
SEA
- CRL
2 stops22h 15m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$936
This United Airlines deal was found by Cheapflights users on 7/6. 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 10/78:30 am
BRU
- SEA
1 stop12h 50m
United Airlines
Tue 10/1310:58 pm
SEA
- BRU
1 stop23h 47m
United Airlines
Deal found 7/6![United Airlines logo]()
$894
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 8/277:05 am
CRL
- SEA
2 stops19h 50m
Multiple Airlines
Wed 9/97:10 pm
SEA
- CRL
1 stop28h 30m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$979
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Tue 10/66:20 am
BRU
- SEA
1 stop15h 00m
United Airlines
Wed 10/1410:42 am
SEA
- BRU
1 stop13h 18m
United Airlines
Deal found 7/6![United Airlines logo]()
$894
This Kiwi.com deal was found by Cheapflights users on 7/7. 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.
Sun 9/139:05 am
CRL
- SEA
2 stops17h 50m
Multiple Airlines
Sun 9/277:10 pm
SEA
- CRL
1 stop17h 15m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$983
This United Airlines deal was found by Cheapflights users on 7/5. 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 8/286:20 am
BRU
- SEA
1 stop14h 35m
United Airlines
Fri 9/1112:10 pm
SEA
- BRU
2 stops35h 50m
United Airlines
Deal found 7/5![United Airlines logo]()
$894
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Fri 10/26:20 am
BRU
- SEA
1 stop15h 00m
United Airlines
Tue 10/137:00 am
SEA
- BRU
1 stop17h 00m
United Airlines
Deal found 7/6![United Airlines logo]()
$894
This Mytrip deal was found by Cheapflights users on 7/6. 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.
Thu 9/106:35 am
CRL
- SEA
3 stops23h 29m
Multiple Airlines
Tue 9/226:50 pm
SEA
- CRL
2 stops17h 25m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$1,013
This Mytrip deal was found by Cheapflights users on 7/8. 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.
Fri 8/219:50 am
CRL
- SEA
2 stops17h 55m
Multiple Airlines
Tue 9/18:00 am
SEA
- CRL
3 stops28h 15m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$1,046
Last-minute flights from Belgium to SeattleDiscover last-minute flight deals from Belgium to Seattle. Data last updated July 9, 2026 and is based on user searches.
Discover last-minute flight deals from Belgium to Seattle. Data last updated July 9, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/8. 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.
Fri 8/219:55 pm
CRL
- SEA
2 stops24h 50m
Multiple Airlines
Sun 9/67:10 pm
SEA
- CRL
1 stop17h 15m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$1,023
This Mytrip deal was found by Cheapflights users on 7/6. 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.
Fri 8/2112:00 pm
CRL
- SEA
2 stops34h 45m
Multiple Airlines
Tue 9/13:55 pm
SEA
- CRL
2 stops22h 00m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$1,039
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 8/277:05 am
CRL
- SEA
2 stops19h 50m
Multiple Airlines
Wed 9/97:10 pm
SEA
- CRL
1 stop28h 30m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$977
This Expedia deal was found by Cheapflights users on 7/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:20 am
BRU
- SEA
1 stop12h 25m
Scandinavian Airlines
Fri 9/113:55 pm
SEA
- BRU
1 stop18h 55m
Scandinavian Airlines
Deal found 7/7![Scandinavian Airlines logo]()
$707
This Mytrip deal was found by Cheapflights users on 7/6. 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.
Fri 8/288:30 pm
CRL
- SEA
2 stops26h 15m
Multiple Airlines
Fri 9/113:55 pm
SEA
- CRL
2 stops18h 45m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$898
One-way flights from Belgium to SeattleSearch for one-way flight options from Belgium to Seattle. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
Search for one-way flight options from Belgium to Seattle. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 10/198:50 am
CRL
- SEA
3 stops42h 36m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 7/4. 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 8/227:50 pm
CRL
- SEA
3 stops53h 10m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$491
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 10/199:10 pm
BRU
- SEA
3 stops53h 00m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$515
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 9/127:50 pm
CRL
- SEA
3 stops53h 10m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$524
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 9/125:20 pm
BRU
- SEA
2 stops34h 25m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$545
This Cheapflightsfares deal was found by Cheapflights users on 7/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:25 pm
BRU
- SEA
2 stops23h 10m
Aer Lingus
Deal found 7/8![Aer Lingus logo]()
$550
This American Airlines deal was found by Cheapflights users on 7/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:50 am
BRU
- SEA
1 stop16h 35m
American Airlines
Deal found 7/6![American Airlines logo]()
$555
This British Airways deal was found by Cheapflights users on 7/6. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:15 pm
BRU
- SEA
1 stop23h 20m
British Airways
Deal found 7/6![British Airways logo]()
$556
This British Airways deal was found by Cheapflights users on 7/8. 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 10/159:15 pm
BRU
- SEA
1 stop23h 20m
British Airways
Deal found 7/8![British Airways logo]()
$558
This Iberia deal was found by Cheapflights users on 7/6. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:05 am
BRU
- SEA
2 stops22h 47m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$569
This Kiwi.com deal was found by Cheapflights users on 7/8. 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.
Tue 8/119:55 am
CRL
- SEA
3 stops56h 45m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$575
This Priceline deal was found by Cheapflights users on 7/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:50 pm
BRU
- SEA
1 stop30h 35m
British Airways
Deal found 7/7![British Airways logo]()
$598
Find flight deals from Belgium to Seattle
Keep the following information in mind while searching for Belgium to Seattle flight deals. Data was last updated July 9, 2026.
Round-trip from | $707 (Expedia) |
|---|---|
One-way from | $443 (Kiwi.com) |
Popular in | January |
Cheapest in | December |
Average price | $881 |
Cheapflights Fare Finder
Customize your flight search to find flights from Belgium to Seattle 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 9, 2026.
Use the filters below to find and compare flights from Belgium to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BrusselsSeattle
BRU - SEA
BRUSEA
Brussels Bruxelles-National
Tue 9/15
10:20 am-1:45 pm
1 stop12h 25m
Seattle/Tacoma Intl
Sun 9/27
3:55 pm-6:30 pm
1 stop17h 35m
$782
BrusselsSeattle
BRU - SEA
BRUSEA
Brussels Bruxelles-National
Tue 9/8
5:45 am-1:45 pm
1 stop17h 00m
Seattle/Tacoma Intl
Sat 9/26
3:55 pm-2:35 pm
1 stop13h 40m
$782
BrusselsSeattle
BRU - SEA
BRUSEA
Brussels Bruxelles-National
Fri 8/28
10:20 am-1:45 pm
1 stop12h 25m
Seattle/Tacoma Intl
Fri 9/11
3:55 pm-12:00 pm
2 stops35h 05m
$792
BrusselsSeattle
BRU - SEA
BRUSEA
Brussels Bruxelles-National
Wed 8/5
8:30 am-11:55 am
1 stop12h 25m
Seattle/Tacoma Intl
Tue 8/11
10:41 am-1:15 pm
2 stops17h 34m
$888
BrusselsSeattle
BRU - SEA
BRUSEA
Brussels Bruxelles-National
Sat 9/19
8:35 am-11:55 am
1 stop12h 20m
Seattle/Tacoma Intl
Thu 9/24
7:00 am-9:00 am
1 stop17h 00m
$893
Quickest round-trip
BrusselsSeattle
BRU - SEA
BRUSEA
Brussels Bruxelles-National
Sat 9/19
8:35 am-11:55 am
1 stop12h 20m
Seattle/Tacoma Intl
Mon 9/28
10:42 am-9:00 am
1 stop13h 18m
$893
BrusselsSeattle
BRU - SEA
BRUSEA
Brussels Bruxelles-National
Wed 10/7
8:30 am-12:20 pm
1 stop12h 50m
Seattle/Tacoma Intl
Tue 10/13
10:58 pm-7:45 am
1 stop23h 47m
$894
BrusselsSeattle
BRU - SEA
BRUSEA
Brussels Bruxelles-National
Tue 10/6
6:20 am-12:20 pm
1 stop15h 00m
Seattle/Tacoma Intl
Wed 10/14
10:42 am-9:00 am
1 stop13h 18m
$894
BrusselsSeattle
BRU - SEA
BRUSEA
Brussels Bruxelles-National
Fri 8/28
6:20 am-11:55 am
1 stop14h 35m
Seattle/Tacoma Intl
Fri 9/11
12:10 pm-9:00 am
2 stops35h 50m
$894
BrusselsSeattle
BRU - SEA
BRUSEA
Brussels Bruxelles-National
Fri 10/2
6:20 am-12:20 pm
1 stop15h 00m
Seattle/Tacoma Intl
Tue 10/13
7:00 am-9:00 am
1 stop17h 00m
$894
Showing 1-10 of 32 resultsSorted by cheapest first
Best time to book a flight from Belgium to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Belgium with our price prediction graph.
BRU-SEA
CRL-SEA
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 Belgium to Seattle
BE0-SEA
BRU-SEA
CRL-SEA
What is the cheapest month to book a flight from Belgium to Seattle?
Currently, January is the cheapest month in which you can book a flight from Belgium to Seattle (average of $452). Flying from Belgium to Seattle in March is currently the most expensive (average of $823). 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 Belgium to Seattle?
The price you pay for your flight from Belgium to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 49 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated July 9, 2026.
Peruse reviews from past customers who have flown with KLM,Scandinavian Airlines, andUnited Airlines from Belgium to Seattle 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.
Comfort
7.7
Food
7.3
Crew
8.4
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Comfort
7.7
Food
7.3
Crew
8.4
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Comfort
7.7
Food
7.3
Crew
8.4
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Comfort
7.7
Food
7.3
Crew
8.4
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Comfort
7.7
Food
7.3
Crew
8.4
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Comfort
7.7
Food
7.3
Crew
8.4
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Related info for your journey
Find useful and relevant information for your journey from Belgium to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Tacoma
Lacey
Leavenworth
Olympia
Ocean Shores
Edmonds
Snoqualmie
Tumwater
Tukwila
Renton
Kent
Lynnwood
Ellensburg
Fife
Marysville
Lakewood
Issaquah
Shoreline
Centralia
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
Seattle flight routes
Alternative routes for Belgium to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Belgium to Seattle by cabin class
Find flights from Belgium to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Belgium and Seattle flights
Browse other Belgium and Seattle flight options. Last updated on July 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 9, 2026.
Top 5 airlines flying from Belgium to Seattle
Discover the top 5 airlines that operate flights from Belgium to Seattle. 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 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$584 | Average$782 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$586 | Average$819 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$676 | Average$1,047 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$711 | Average$794 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$823 | Average$883 | FlexibilityNo cancel fee | On-time76% |