$168+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRU
apr 3 — apr 101
Round-trip
1 adult, Economy
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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 marzo 4, 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 marzo 4, 2026.
This Gotogate deal was found by Cheapflights users on 3/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 4/237:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
mer 5/61:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 3/3![Icelandair logo]()
$398
This CrystalTravel deal was found by Cheapflights users on 3/1. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 4/163:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
gio 4/231:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 3/1![Icelandair logo]()
$406
This oojo deal was found by Cheapflights users on 2/28. 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.
mer 5/63:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
ven 5/151:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 2/28![Icelandair logo]()
$425
This FlightHub deal was found by Cheapflights users on 3/3. 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.
mer 11/42:35 pm
SEA
- BRU
1 stop12h 20m
Icelandair
gio 11/1212:50 pm
BRU
- SEA
1 stop13h 10m
Icelandair
Deal found 3/3![Icelandair logo]()
$432
This Icelandair deal was found by Cheapflights users on 2/28. 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.
mar 5/57:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
ven 5/151:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 2/28![Icelandair logo]()
$435
This KAYAK deal was found by Cheapflights users on 3/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 3/317:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
gio 4/231:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 3/1![Icelandair logo]()
$447
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 11/22:35 pm
SEA
- BRU
1 stop12h 20m
Icelandair
gio 11/1212:50 pm
BRU
- SEA
1 stop13h 10m
Icelandair
Deal found 3/3![Icelandair logo]()
$451
This KAYAK deal was found by Cheapflights users on 3/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 11/22:35 pm
SEA
- BRU
1 stop12h 20m
Icelandair
mar 11/1012:50 pm
BRU
- SEA
1 stop13h 10m
Icelandair
Deal found 3/3![Icelandair logo]()
$455
This Mytrip deal was found by Cheapflights users on 3/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 4/167:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
gio 4/237:05 am
CRL
- SEA
3 stops24h 53m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$584
This Mytrip deal was found by Cheapflights users on 2/28. 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.
gio 4/237:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
mer 5/69:20 am
CRL
- SEA
2 stops20h 48m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$743
This Mytrip deal was found by Cheapflights users on 3/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 4/86:50 pm
SEA
- CRL
2 stops18h 25m
Multiple Airlines
gio 4/237:05 am
CRL
- SEA
3 stops24h 53m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$834
This Mytrip deal was found by Cheapflights users on 3/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 3/312:10 pm
SEA
- CRL
2 stops22h 05m
Multiple Airlines
mar 4/79:00 pm
CRL
- SEA
2 stops28h 59m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$843
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 marzo 4, 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 marzo 4, 2026.
This Delta deal was found by Cheapflights users on 2/28. 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.
sab 5/211:15 pm
SEA
- BRU
1 stop23h 25m
Delta
lun 5/118:05 am
BRU
- SEA
1 stop12h 37m
Delta
Deal found 2/28![Delta logo]()
$533
This KLM deal was found by Cheapflights users on 3/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 4/301:45 pm
SEA
- BRU
1 stop15h 55m
KLM
mar 5/58:05 am
BRU
- SEA
1 stop12h 37m
KLM
Deal found 3/2![KLM logo]()
$538
This Finnair deal was found by Cheapflights users on 3/3. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 4/301:19 pm
SEA
- BRU
2 stops20h 01m
Finnair
mar 5/56:30 am
BRU
- SEA
1 stop18h 30m
Finnair
Deal found 3/3![Finnair logo]()
$542
This Mytrip deal was found by Cheapflights users on 3/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 4/167:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
gio 4/237:05 am
CRL
- SEA
3 stops24h 53m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$584
This Icelandair deal was found by Cheapflights users on 2/28. 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.
sab 5/97:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
dom 5/171:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 2/28![Icelandair logo]()
$606
This Delta deal was found by Cheapflights users on 3/1. 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.
mer 4/87:15 am
SEA
- BRU
2 stops17h 25m
Delta
gio 4/236:20 am
BRU
- SEA
1 stop19h 10m
Delta
Deal found 3/1![Delta logo]()
$536
This Finnair deal was found by Cheapflights users on 2/27. 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.
lun 4/137:09 am
SEA
- BRU
2 stops30h 26m
Finnair
lun 4/207:05 pm
BRU
- SEA
2 stops33h 31m
Finnair
Deal found 2/27![Finnair logo]()
$545
This Delta deal was found by Cheapflights users on 2/27. 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.
gio 4/237:15 am
SEA
- BRU
2 stops17h 25m
Delta
mer 5/66:20 am
BRU
- SEA
1 stop19h 10m
Delta
Deal found 2/27![Delta logo]()
$542
This Finnair deal was found by Cheapflights users on 3/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 4/81:19 pm
SEA
- BRU
2 stops24h 16m
Finnair
gio 4/236:30 am
BRU
- SEA
2 stops25h 08m
Finnair
Deal found 3/1![Finnair logo]()
$545
This Delta deal was found by Cheapflights users on 2/28. 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.
mer 4/221:45 pm
SEA
- BRU
1 stop15h 55m
Delta
mer 4/296:20 am
BRU
- SEA
2 stops19h 28m
Delta
Deal found 2/28![Delta logo]()
$542
This Delta deal was found by Cheapflights users on 2/27. 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.
lun 4/136:15 am
SEA
- BRU
1 stop16h 25m
Delta
lun 4/206:20 am
BRU
- SEA
2 stops21h 08m
Delta
Deal found 2/27![Delta logo]()
$543
This Mytrip deal was found by Cheapflights users on 2/28. 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.
gio 4/237:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
mer 5/69:20 am
CRL
- SEA
2 stops20h 48m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$743
This Delta deal was found by Cheapflights users on 2/28. 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.
gio 4/307:15 am
SEA
- BRU
2 stops22h 25m
Delta
mar 5/56:20 am
BRU
- SEA
2 stops19h 28m
Delta
Deal found 2/28![Delta logo]()
$552
This Mytrip deal was found by Cheapflights users on 3/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 4/86:50 pm
SEA
- CRL
2 stops18h 25m
Multiple Airlines
gio 4/237:05 am
CRL
- SEA
3 stops24h 53m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$834
This Mytrip deal was found by Cheapflights users on 3/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 3/312:10 pm
SEA
- CRL
2 stops22h 05m
Multiple Airlines
mar 4/79:00 pm
CRL
- SEA
2 stops28h 59m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$843
This Kiwi.com deal was found by Cheapflights users on 3/2. 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.
mer 5/67:10 pm
SEA
- CRL
1 stop28h 30m
Multiple Airlines
ven 5/158:50 am
CRL
- SEA
2 stops33h 50m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$889
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 4/57:10 pm
SEA
- CRL
1 stop17h 15m
Multiple Airlines
ven 4/249:50 am
CRL
- SEA
1 stop16h 20m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$932
This Kiwi.com deal was found by Cheapflights users on 3/2. 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.
mer 4/17:10 pm
SEA
- CRL
1 stop28h 30m
Multiple Airlines
mer 4/89:45 pm
CRL
- SEA
2 stops31h 55m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$1,010
This Mytrip deal was found by Cheapflights users on 3/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sab 5/23:40 pm
SEA
- CRL
2 stops14h 40m
Multiple Airlines
dom 5/106:25 pm
CRL
- SEA
3 stops33h 05m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$1,054
Last-minute flights from Seattle to BelgiumDiscover last-minute flight deals from Seattle to Belgium. Data last updated marzo 4, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Belgium. Data last updated marzo 4, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 2/28. 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.
lun 3/303:40 pm
SEA
- CRL
2 stops19h 55m
Multiple Airlines
lun 4/68:50 am
CRL
- SEA
2 stops18h 05m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$878
This KAYAK deal was found by Cheapflights users on 3/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 3/317:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
gio 4/231:50 pm
BRU
- SEA
1 stop13h 05m
Icelandair
Deal found 3/1![Icelandair logo]()
$447
This Mytrip deal was found by Cheapflights users on 3/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 3/312:10 pm
SEA
- CRL
2 stops22h 05m
Multiple Airlines
mar 4/79:00 pm
CRL
- SEA
2 stops28h 59m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$843
This FlightHub deal was found by Cheapflights users on 3/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 4/13:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
gio 4/231:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 3/1![Icelandair logo]()
$476
This oojo deal was found by Cheapflights users on 3/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 4/87:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
gio 4/231:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 3/4![Icelandair logo]()
$461
This Mytrip deal was found by Cheapflights users on 3/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 4/86:50 pm
SEA
- CRL
2 stops18h 25m
Multiple Airlines
gio 4/237:05 am
CRL
- SEA
3 stops24h 53m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$834
This oojo deal was found by Cheapflights users on 3/3. 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.
dom 4/128:20 pm
SEA
- BRU
1 stop14h 40m
British Airways
lun 4/208:50 pm
BRU
- SEA
1 stop23h 45m
British Airways
Deal found 3/3![British Airways logo]()
$526
This CrystalTravel deal was found by Cheapflights users on 3/1. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 4/163:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
gio 4/231:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 3/1![Icelandair logo]()
$406
This Mytrip deal was found by Cheapflights users on 3/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 4/167:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
gio 4/237:05 am
CRL
- SEA
3 stops24h 53m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$584
This Air France deal was found by Cheapflights users on 2/28. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 4/206:00 am
SEA
- BRU
1 stop16h 40m
Air France
mar 4/289:45 am
BRU
- SEA
1 stop18h 09m
Air France
Deal found 2/28![Air France logo]()
$528
This Gotogate deal was found by Cheapflights users on 3/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 4/237:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
mer 5/61:50 pm
BRU
- SEA
1 stop15h 50m
Icelandair
Deal found 3/3![Icelandair logo]()
$398
This Mytrip deal was found by Cheapflights users on 2/28. 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.
gio 4/237:00 pm
SEA
- CRL
2 stops17h 30m
Multiple Airlines
mer 5/69:20 am
CRL
- SEA
2 stops20h 48m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$743
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 marzo 4, 2026.
Search for one-way flight options from Seattle to Belgium. Find affordable one-way fares based on user searches. Data last updated marzo 4, 2026.
This Ticket deal was found by Cheapflights users on 2/28. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 5/57:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Deal found 2/28![Icelandair logo]()
$168
This oojo deal was found by Cheapflights users on 2/28. 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.
gio 4/307:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Deal found 2/28![Icelandair logo]()
$194
This Mytrip deal was found by Cheapflights users on 3/2. 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.
dom 3/293:40 pm
SEA
- BRU
1 stop12h 15m
Icelandair
Deal found 3/2![Icelandair logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 2/28. 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.
mar 5/57:20 am
SEA
- CRL
3 stops27h 20m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 3/2. 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.
lun 3/307:20 am
SEA
- CRL
2 stops28h 15m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 3/2. 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.
dom 3/291:45 pm
SEA
- CRL
2 stops45h 50m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 2/28. 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.
mar 5/510:40 pm
SEA
- BRU
2 stops34h 35m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$256
This KAYAK deal was found by Cheapflights users on 3/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 4/87:00 pm
SEA
- BRU
1 stop32h 55m
Icelandair
Deal found 3/4![Icelandair logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 3/2. 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.
lun 3/307:00 pm
SEA
- BRU
3 stops29h 55m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 3/2. 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.
dom 3/293:40 pm
SEA
- BRU
2 stops33h 35m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 4/87:00 pm
SEA
- CRL
2 stops43h 00m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 3/103:35 pm
SEA
- CRL
2 stops35h 05m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$383
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 marzo 4, 2026.
Round-trip from | $398 (Gotogate) |
|---|---|
One-way from | $168 (Ticket) |
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 marzo 4, 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
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
sab 5/2
11:15 pm-7:40 am
1 stop23h 25m
Brussels Bruxelles-National
lun 5/11
8:05 am-11:42 am
1 stop12h 37m
$533
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
mer 4/8
7:15 am-9:40 am
2 stops17h 25m
Brussels Bruxelles-National
gio 4/23
6:20 am-4:30 pm
1 stop19h 10m
$536
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
gio 4/30
1:45 pm-2:40 pm
1 stop15h 55m
Brussels Bruxelles-National
mar 5/5
8:05 am-11:42 am
1 stop12h 37m
$538
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
gio 4/30
1:19 pm-6:20 pm
2 stops20h 01m
Brussels Bruxelles-National
mar 5/5
6:30 am-4:00 pm
1 stop18h 30m
$542
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
gio 4/23
7:15 am-9:40 am
2 stops17h 25m
Brussels Bruxelles-National
mer 5/6
6:20 am-4:30 pm
1 stop19h 10m
$542
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
mer 4/22
1:45 pm-2:40 pm
1 stop15h 55m
Brussels Bruxelles-National
mer 4/29
6:20 am-4:48 pm
2 stops19h 28m
$542
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
lun 4/13
6:15 am-7:40 am
1 stop16h 25m
Brussels Bruxelles-National
lun 4/20
6:20 am-6:28 pm
2 stops21h 08m
$543
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
lun 4/13
7:09 am-10:35 pm
2 stops30h 26m
Brussels Bruxelles-National
lun 4/20
7:05 pm-7:36 pm
2 stops33h 31m
$545
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
mer 4/8
1:19 pm-10:35 pm
2 stops24h 16m
Brussels Bruxelles-National
gio 4/23
6:30 am-10:38 pm
2 stops25h 08m
$545
SeattleBrussels
SEA - BRU
SEABRU
Seattle/Tacoma Intl
gio 4/30
7:15 am-2:40 pm
2 stops22h 25m
Brussels Bruxelles-National
mar 5/5
6:20 am-4:48 pm
2 stops19h 28m
$552
Showing 1-10 of 32 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 $497). 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 marzo 4, 2026.
Peruse reviews from past customers who have flown with KLM, United Airlines, and Icelandair 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
Boarding
7.8
Crew
8.4
Food
7.3
Comfort
7.6
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Boarding
7.8
Crew
8.4
Food
7.3
Comfort
7.6
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Boarding
7.8
Crew
8.4
Food
7.3
Comfort
7.6
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Boarding
7.8
Crew
8.4
Food
7.3
Comfort
7.6
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Boarding
7.8
Crew
8.4
Food
7.3
Comfort
7.6
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Boarding
7.8
Crew
8.4
Food
7.3
Comfort
7.6
Overall
7.7
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 marzo 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 9 airlines flying from Seattle to Belgium
Discover the top 9 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 marzo 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$383 | Average$479 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$421 | Average$727 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$481 | Average$688 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$482 | Average$642 | 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$652 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$518 | Average$741 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$536 | Average$592 | FlexibilityNo cancel fee | On-timeN/A |