$453+ Cheap flights from Seattle (SEA) to Belgium
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRU
Dec 9 — Dec 161
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Belgium with Cheapflights
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Cheapest flights from Seattle to BelgiumExplore the most affordable flight options available from Seattle to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 9, 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 November 9, 2026.
This Mytrip deal was found by Cheapflights users on 11/7. 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.
Mon 12/78:30 am -
2 stops26h 40m
Mon 12/146:00 pm -
2 stops37h 43m
Deal found 11/7![Multiple Airlines logo]()
$800
This Flysmarter deal was found by Cheapflights users on 11/7. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:45 pm -
1 stop17h 10m
Mon 12/149:15 pm -
1 stop23h 10m
Deal found 11/7![British Airways logo]()
$803
This Gotogate deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/233:15 pm -
2 stops19h 55m
Tue 12/810:00 am -
2 stops37h 37m
Deal found 11/6![Air Canada logo]()
$812
This Trip.com deal was found by Cheapflights users on 11/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:05 pm -
1 stop18h 15m
Tue 12/86:15 pm -
1 stop31h 55m
Deal found 11/6![Turkish Airlines logo]()
$820
This FlightHub deal was found by Cheapflights users on 11/9. 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.
Wed 11/187:27 am -
2 stops26h 08m
Wed 12/23:10 pm -
2 stops40h 59m
Deal found 11/9![Scandinavian Airlines logo]()
$841
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:45 pm -
1 stop13h 20m
Mon 12/79:15 pm -
1 stop23h 10m
Deal found 11/5![British Airways logo]()
$846
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Mon 11/237:00 am -
2 stops21h 15m
Tue 12/810:10 am -
3 stops22h 34m
Deal found 11/6![United Airlines logo]()
$849
This Air Canada deal was found by Cheapflights users on 11/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:05 pm -
2 stops40h 05m
Mon 11/169:10 pm -
2 stops33h 47m
Deal found 11/7![Air Canada logo]()
$861
This Cheapflightsfares deal was found by Cheapflights users on 11/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/182:50 pm -
1 stop20h 05m
Wed 12/27:40 pm -
2 stops25h 20m
Deal found 11/7![Lufthansa logo]()
$862
This Delta deal was found by Cheapflights users on 11/7. 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.
Sat 11/710:59 pm -
2 stops23h 36m
Mon 11/1610:45 am -
1 stop34h 02m
Deal found 11/7![Delta logo]()
$865
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 November 9, 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 November 9, 2026.
This United deal was found by Cheapflights users on 11/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1610:40 pm -
1 stop25h 20m
Fri 4/239:30 am -
2 stops38h 10m
Deal found 11/9![Multiple Airlines logo]()
$790
This British Airways deal was found by Cheapflights users on 11/5. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/51:35 pm -
1 stop15h 50m
Mon 4/128:50 pm -
1 stop23h 45m
Deal found 11/5![British Airways logo]()
$808
This United Airlines deal was found by Cheapflights users on 11/7. 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 4/1011:50 pm -
1 stop24h 10m
Sun 4/1810:15 am -
1 stop22h 59m
Deal found 11/7![United Airlines logo]()
$813
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/610:45 pm -
2 stops25h 05m
Fri 3/196:45 am -
1 stop15h 15m
Deal found 11/8![United Airlines logo]()
$835
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Sat 3/2011:59 pm -
2 stops29h 16m
Sat 3/277:00 am -
1 stop14h 00m
Deal found 11/9![United Airlines logo]()
$936
This United deal was found by Cheapflights users on 11/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2811:15 pm -
2 stops26h 05m
Sun 1/310:00 am -
2 stops41h 22m
Deal found 11/9![Multiple Airlines logo]()
$1,047
This Mytrip deal was found by Cheapflights users on 11/9. 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 4/138:40 am -
3 stops19h 35m
Mon 4/265:45 am -
2 stops23h 55m
Deal found 11/9![Multiple Airlines logo]()
$1,092
This United Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2210:50 pm -
1 stop23h 25m
Tue 12/2911:55 am -
3 stops44h 23m
Deal found 11/7![United Airlines logo]()
$1,204
Last-minute flights from Seattle to BelgiumDiscover last-minute flight deals from Seattle to Belgium. Data last updated November 9, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Belgium. Data last updated November 9, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 11/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:05 pm -
2 stops40h 05m
Mon 11/169:10 pm -
2 stops33h 47m
Deal found 11/7![Air Canada logo]()
$861
This Delta deal was found by Cheapflights users on 11/7. 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.
Sat 11/710:59 pm -
2 stops23h 36m
Mon 11/1610:45 am -
1 stop34h 02m
Deal found 11/7![Delta logo]()
$865
This FlightHub deal was found by Cheapflights users on 11/9. 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.
Wed 11/187:27 am -
2 stops26h 08m
Wed 12/23:10 pm -
2 stops40h 59m
Deal found 11/9![Scandinavian Airlines logo]()
$841
This Cheapflightsfares deal was found by Cheapflights users on 11/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/182:50 pm -
1 stop20h 05m
Wed 12/27:40 pm -
2 stops25h 20m
Deal found 11/7![Lufthansa logo]()
$862
This Gotogate deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/233:15 pm -
2 stops19h 55m
Tue 12/810:00 am -
2 stops37h 37m
Deal found 11/6![Air Canada logo]()
$812
This Trip.com deal was found by Cheapflights users on 11/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:05 pm -
1 stop18h 15m
Tue 12/86:15 pm -
1 stop31h 55m
Deal found 11/6![Turkish Airlines logo]()
$820
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Mon 11/237:00 am -
2 stops21h 15m
Tue 12/810:10 am -
3 stops22h 34m
Deal found 11/6![United Airlines logo]()
$849
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:45 pm -
1 stop13h 20m
Mon 12/79:15 pm -
1 stop23h 10m
Deal found 11/5![British Airways logo]()
$846
This Mytrip deal was found by Cheapflights users on 11/7. 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.
Mon 12/78:30 am -
2 stops26h 40m
Mon 12/146:00 pm -
2 stops37h 43m
Deal found 11/7![Multiple Airlines logo]()
$800
This Flysmarter deal was found by Cheapflights users on 11/7. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:45 pm -
1 stop17h 10m
Mon 12/149:15 pm -
1 stop23h 10m
Deal found 11/7![British Airways logo]()
$803
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 November 9, 2026.
Search for one-way flight options from Seattle to Belgium. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/18:33 am -
2 stops16h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Multiple Airlines logo]()
$453
This Booking.com deal was found by Cheapflights users on 11/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/11:30 pm -
1 stop21h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![British Airways logo]()
$577
This oojo deal was found by Cheapflights users on 11/5. 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.
Sat 1/211:15 pm -
2 stops25h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Scandinavian Airlines logo]()
$581
This oojo deal was found by Cheapflights users on 11/5. 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.
Sat 1/27:05 pm -
1 stop37h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Turkish Airlines logo]()
$625
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 1/22:20 pm -
3 stops33h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Multiple Airlines logo]()
$674
This Priceline deal was found by Cheapflights users on 11/5. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:50 pm -
1 stop17h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Multiple Airlines logo]()
$923
This Ovago deal was found by Cheapflights users on 11/5. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2412:31 pm -
2 stops22h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Scandinavian Airlines logo]()
$1,110
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 November 9, 2026.
Round-trip from | $577 (oojo) |
|---|---|
One-way from | $453 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $757 |
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 7,457,451 searches. Data last updated November 9, 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 Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Tue 12/1
8:33 am-9:40 am
2 stops16h 07m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$453
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Tue 12/1
1:30 pm-7:45 pm
1 stop21h 15m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$577
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Sat 1/2
11:15 pm-9:40 am
2 stops25h 25m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$581
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Sat 1/2
7:05 pm-5:10 pm
1 stop37h 05m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$625
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Sat 1/2
2:20 pm-8:35 am
3 stops33h 15m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$674
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Fri 4/16
10:40 pm-9:00 am
1 stop25h 20m
Brussels Bruxelles-National
Fri 4/23
9:30 am-2:40 pm
2 stops38h 10m
$790
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Mon 4/5
1:35 pm-2:25 pm
1 stop15h 50m
Brussels Bruxelles-National
Mon 4/12
8:50 pm-11:35 am
1 stop23h 45m
$808
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Sat 4/10
11:50 pm-9:00 am
1 stop24h 10m
Brussels Bruxelles-National
Sun 4/18
10:15 am-12:14 am
1 stop22h 59m
$813
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Sat 3/6
10:45 pm-8:50 am
2 stops25h 05m
Brussels Bruxelles-National
Fri 3/19
6:45 am-2:00 pm
1 stop15h 15m
$835
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Mon 11/23
5:50 pm-8:15 pm
1 stop17h 25m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$923
Showing 1-10 of 18 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
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
What is the cheapest month to book a flight from Seattle to Belgium?
Currently, February is the cheapest month in which you can book a flight from Seattle to Belgium (average of $510). Flying from Seattle to Belgium in June is currently the most expensive (average of $1,284). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Seattle to Belgium?
Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Belgium. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Belgium
Get insights into the airlines that provide service to Belgium. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belgium. Reviews last updated November 9, 2026.
Peruse reviews from past customers who have flown with Delta,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.
Crew
8.5
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
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.
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Alternative routes for Seattle to Belgium
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Belgium by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from 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 November 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from Seattle to Belgium
Discover the top 7 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 7,457,451 searches. Data last updated November 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$412 | Average$593 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$421 | Average$689 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$481 | Average$764 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$496 | Average$783 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$509 | Average$983 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$638 | Average$772 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$648 | Average$863 | FlexibilityNo cancel fee | On-time69% |