$219+ Cheap flights from Seattle (SEA) to Bruxelles-National (BRU)
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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRU
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Bruxelles-National 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 Seattle to Bruxelles-National
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to Bruxelles-NationalExplore the most affordable flight options available from Seattle to Bruxelles-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
Explore the most affordable flight options available from Seattle to Bruxelles-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
This SmartFares deal was found by Cheapflights users on 9/4. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 pm -
1 stop32h 55m
Tue 10/2712:50 pm -
1 stop13h 10m
Deal found 9/4![Icelandair logo]()
$480
This oojo deal was found by Cheapflights users on 9/3. 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.
Sat 12/52:35 pm -
1 stop12h 20m
Fri 12/1812:50 pm -
1 stop13h 10m
Deal found 9/3![Icelandair logo]()
$488
This oojo deal was found by Cheapflights users on 9/3. 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.
Sun 10/183:40 pm -
1 stop12h 15m
Thu 10/2912:50 pm -
1 stop13h 10m
Deal found 9/3![Icelandair logo]()
$489
This Mytrip deal was found by Cheapflights users on 9/6. 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.
Wed 10/77:00 pm -
1 stop32h 55m
Fri 10/231:50 pm -
1 stop13h 05m
Deal found 9/6![Icelandair logo]()
$521
This oojo deal was found by Cheapflights users on 9/3. 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.
Mon 10/57:00 pm -
1 stop32h 55m
Sun 10/181:50 pm -
1 stop15h 50m
Deal found 9/3![Icelandair logo]()
$524
This oojo deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:00 pm -
1 stop32h 55m
Thu 10/151:50 pm -
1 stop15h 50m
Deal found 9/2![Icelandair logo]()
$525
This Justfly.com deal was found by Cheapflights users on 9/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 pm -
1 stop32h 55m
Thu 10/151:50 pm -
1 stop15h 50m
Deal found 9/4![Icelandair logo]()
$531
This oojo deal was found by Cheapflights users on 9/4. 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.
Fri 9/253:40 pm -
1 stop12h 15m
Wed 9/301:50 pm -
1 stop13h 05m
Deal found 9/4![Icelandair logo]()
$537
This Icelandair deal was found by Cheapflights users on 9/6. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:40 pm -
1 stop12h 15m
Thu 10/151:50 pm -
1 stop15h 50m
Deal found 9/6![Icelandair logo]()
$552
This Icelandair deal was found by Cheapflights users on 9/3. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 pm -
1 stop32h 55m
Fri 10/21:50 pm -
1 stop15h 50m
Deal found 9/3![Icelandair logo]()
$561
Best flights from Seattle to Bruxelles-NationalDiscover carefully curated flight deals from Seattle to Bruxelles-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
Discover carefully curated flight deals from Seattle to Bruxelles-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
This Icelandair deal was found by Cheapflights users on 9/2. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:40 pm -
1 stop12h 15m
Thu 10/151:50 pm -
1 stop15h 50m
Deal found 9/2![Icelandair logo]()
$552
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:30 am -
3 stops19h 45m
Mon 11/91:45 pm -
2 stops42h 32m
Deal found 9/3![United Airlines logo]()
$743
This United deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1210:42 am -
1 stop13h 18m
Mon 10/197:30 pm -
1 stop30h 29m
Deal found 9/2![Multiple Airlines logo]()
$797
This Icelandair deal was found by Cheapflights users on 9/4. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 pm -
1 stop32h 55m
Mon 10/121:50 pm -
1 stop13h 05m
Deal found 9/4![Icelandair logo]()
$654
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 11/1112:45 pm -
2 stops15h 30m
Sun 11/157:00 am -
1 stop14h 00m
Deal found 9/5![United Airlines logo]()
$771
This United Airlines deal was found by Cheapflights users on 9/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/53:00 pm -
2 stops20h 00m
Fri 10/166:20 am -
1 stop15h 00m
Deal found 9/4![United Airlines logo]()
$777
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Sun 10/1810:50 am -
2 stops24h 10m
Thu 10/297:00 am -
1 stop14h 00m
Deal found 9/6![United Airlines logo]()
$782
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/511:43 pm -
1 stop23h 22m
Sat 12/1212:45 pm -
1 stop33h 15m
Deal found 9/3![United Airlines logo]()
$787
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Sat 10/311:14 pm -
2 stops35h 46m
Sat 10/176:20 am -
1 stop15h 00m
Deal found 9/5![United Airlines logo]()
$842
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/192:26 pm -
2 stops32h 39m
Wed 12/2310:10 am -
1 stop21h 22m
Deal found 9/3![United Airlines logo]()
$899
Last-minute flights from Seattle to Bruxelles-NationalDiscover last-minute flight deals from Seattle to Bruxelles-National. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Bruxelles-National. Data last updated September 7, 2026 and is based on user searches.
This Icelandair deal was found by Cheapflights users on 9/3. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 pm -
1 stop32h 55m
Fri 10/21:50 pm -
1 stop15h 50m
Deal found 9/3![Icelandair logo]()
$561
This Icelandair deal was found by Cheapflights users on 9/3. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 pm -
1 stop32h 55m
Wed 9/301:50 pm -
1 stop13h 05m
Deal found 9/3![Icelandair logo]()
$568
This oojo deal was found by Cheapflights users on 9/4. 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.
Fri 9/253:40 pm -
1 stop12h 15m
Wed 9/301:50 pm -
1 stop13h 05m
Deal found 9/4![Icelandair logo]()
$537
This oojo deal was found by Cheapflights users on 9/3. 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.
Mon 10/57:00 pm -
1 stop32h 55m
Sun 10/181:50 pm -
1 stop15h 50m
Deal found 9/3![Icelandair logo]()
$524
This oojo deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:00 pm -
1 stop32h 55m
Thu 10/151:50 pm -
1 stop15h 50m
Deal found 9/2![Icelandair logo]()
$525
This Mytrip deal was found by Cheapflights users on 9/6. 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.
Wed 10/77:00 pm -
1 stop32h 55m
Fri 10/231:50 pm -
1 stop13h 05m
Deal found 9/6![Icelandair logo]()
$521
This Justfly.com deal was found by Cheapflights users on 9/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 pm -
1 stop32h 55m
Thu 10/151:50 pm -
1 stop15h 50m
Deal found 9/4![Icelandair logo]()
$531
This Icelandair deal was found by Cheapflights users on 9/6. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:40 pm -
1 stop12h 15m
Thu 10/151:50 pm -
1 stop15h 50m
Deal found 9/6![Icelandair logo]()
$552
This oojo deal was found by Cheapflights users on 9/3. 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.
Sun 10/183:40 pm -
1 stop12h 15m
Sun 10/2512:50 pm -
1 stop15h 50m
Deal found 9/3![Icelandair logo]()
$488
This oojo deal was found by Cheapflights users on 9/3. 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.
Sun 10/183:40 pm -
1 stop12h 15m
Thu 10/2912:50 pm -
1 stop13h 10m
Deal found 9/3![Icelandair logo]()
$489
This SmartFares deal was found by Cheapflights users on 9/4. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 pm -
1 stop32h 55m
Tue 10/2712:50 pm -
1 stop13h 10m
Deal found 9/4![Icelandair logo]()
$480
One-way flights from Seattle to Bruxelles-NationalSearch for one-way flight options from Seattle to Bruxelles-National. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
Search for one-way flight options from Seattle to Bruxelles-National. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Booking.com deal was found by Cheapflights users on 9/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:55 pm -
1 stop16h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Aer Lingus logo]()
$219
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Mon 3/12:35 pm -
1 stop12h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Icelandair logo]()
$235
This oojo deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:00 pm -
1 stop32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Icelandair logo]()
$236
This Trip.com deal was found by Cheapflights users on 9/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/172:35 pm -
1 stop12h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Icelandair logo]()
$251
This Icelandair deal was found by Cheapflights users on 9/7. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/152:35 pm -
1 stop12h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Icelandair logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Sun 10/43:55 pm -
3 stops40h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Tue 10/63:55 pm -
3 stops32h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Sun 9/203:55 pm -
3 stops31h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$296
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Sun 10/43:55 pm -
2 stops19h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Scandinavian Airlines logo]()
$310
Find flight deals from Seattle to Bruxelles-National
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Bruxelles-National (BRU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $480 (SmartFares) |
One-way from | $219 (Booking.com) |
Popular in | June |
Cheapest in | January |
Average price | $805 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Bruxelles-National 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 September 7, 2026.
Use the filters below to find and compare flights from Seattle to Brussels Bruxelles-National Airport 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 10/13
7:00 pm-12:55 pm
1 stop32h 55m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$236
Quickest round-trip
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Mon 2/15
2:35 pm-11:55 am
1 stop12h 20m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$262
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Sun 10/4
3:55 pm-5:25 pm
3 stops40h 30m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$277
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Tue 10/6
3:55 pm-9:35 am
2 stops32h 40m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$295
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Mon 3/1
3:15 pm-8:10 pm
2 stops19h 55m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$344
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Thu 2/18
11:50 pm-1:15 pm
2 stops28h 25m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$394
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Fri 12/11
6:50 am-8:05 am
1 stop16h 15m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$402
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Wed 2/17
3:51 pm-7:15 am
3 stops30h 24m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$402
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Fri 2/19
3:51 pm-7:15 am
3 stops30h 24m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$402
SeattleBrussels
SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National
SEABRU
Seattle/Tacoma Intl
Sat 9/19
7:00 pm-8:10 am
2 stops52h 10m
Brussels Bruxelles-National
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$446
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Seattle to Bruxelles-National
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Bruxelles-National in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Brussels Bruxelles-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Brussels Bruxelles-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Brussels Bruxelles-National Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Brussels Bruxelles-National Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Brussels Bruxelles-National Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Bruxelles-National
Have a flexible travel schedule? Discover the best time to fly to Bruxelles-National 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 Brussels Bruxelles-National Airport
Prices
More
How far ahead should I book a flight from Seattle to Brussels Bruxelles-National Airport?
The best time to book flights from Seattle to Brussels Bruxelles-National Airport is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Seattle to Brussels Bruxelles-National Airport?
Currently, January is the cheapest month in which you can book a flight from Seattle to Brussels Bruxelles-National Airport (average of $510). Flying from Seattle to Brussels Bruxelles-National Airport 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 much does it cost to fly round-trip from Seattle to Brussels Bruxelles-National Airport?
Airfare is below average for this route at the moment.
Seattle to Brussels Bruxelles-National Airport flights typically cost between $642 and $997 in October.The cheapest round-trip price found within the last 5 days was $480 on Icelandair (Oct 20-Oct 27).
What’s the top layover airport for flights from Seattle to Brussels Bruxelles-National Airport?
Share of 1-stop round-trip flights from Seattle to Brussels Bruxelles-National Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Frankfurt am Main (FRA) – chosen by Cheapflights users on 33% of 1-stop itineraries from Seattle to Brussels Bruxelles-National Airport on Cheapflights.
What’s the cheapest layover airport for flights from Seattle to Brussels Bruxelles-National Airport?
Average round-trip fare for 1-stop flights from Seattle to Brussels Bruxelles-National Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $569.
What’s the fastest layover option from Seattle to Brussels Bruxelles-National Airport?
Shortest average travel time for 1-stop one-way flights from Seattle to Brussels Bruxelles-National Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 12h 15m.
Which airport typically offers the quickest layover for flights from Seattle to Brussels Bruxelles-National Airport?
Average layover duration for 1-stop one-way flights from Seattle to Brussels Bruxelles-National Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 15m.
Reviews of airlines servicing Bruxelles-National
Get insights into the airlines that provide service to Bruxelles-National. 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 Bruxelles-National. Reviews last updated September 7, 2026.
Peruse reviews from past customers who have flown with KLM,Delta, andUnited Airlines from Seattle to Brussels Bruxelles-National Airport 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
7.2
Food
7.3
Overall
7.8
Crew
8.4
Comfort
7.7
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Entertainment
7.2
Food
7.3
Overall
7.8
Crew
8.4
Comfort
7.7
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Entertainment
7.2
Food
7.3
Overall
7.8
Crew
8.4
Comfort
7.7
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Entertainment
7.2
Food
7.3
Overall
7.8
Crew
8.4
Comfort
7.7
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Entertainment
7.2
Food
7.3
Overall
7.8
Crew
8.4
Comfort
7.7
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Entertainment
7.2
Food
7.3
Overall
7.8
Crew
8.4
Comfort
7.7
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Related info for your journey
Find useful and relevant information for your journey from Seattle to Bruxelles-National. 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 Brussels Bruxelles-National Airport?
Book flights to Brussels Bruxelles-National Airport if you plan to visit one of these locationsMons
Hasselt
Charleroi
Mechelen
Durbuy
Zaventem
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Top 6 airlines flying from Seattle to Bruxelles-National
Discover the top 6 airlines that operate flights from Seattle to Bruxelles-National. 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 September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$382 | Average$559 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$421 | Average$624 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$481 | Average$864 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$496 | Average$769 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$502 | Average$830 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$509 | Average$806 | FlexibilityNo cancel fee | On-timeN/A |