Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Seattle to Brussels from $311

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Brussels departing on 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to Brussels

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:50 am - 12:30 pmSEA-CRL
21h 40m3 stops
Multiple Airlines Logo
5:40 pm - 12:10 pmCRL-SEA
27h 30m2 stops
$625Multiple Airlines
Find Deal
Sat, Nov 15 - Fri, Nov 21
Multiple Airlines Logo
2:00 pm - 8:05 pmSEA-CRL
21h 05m2 stops
Multiple Airlines Logo
12:15 pm - 12:10 pmCRL-SEA
32h 55m2 stops
$723Multiple Airlines
Find Deal
Thu, Nov 6 - Thu, Nov 20
Multiple Airlines Logo
2:00 pm - 8:05 pmSEA-CRL
21h 05m2 stops
Multiple Airlines Logo
12:15 pm - 1:20 pmCRL-SEA
34h 05m3 stops
$745Multiple Airlines
Find Deal
Thu, Nov 6 - Thu, Nov 20
Multiple Airlines Logo
5:40 pm - 7:55 pmSEA-CRL
17h 15m2 stops
Multiple Airlines Logo
8:20 pm - 3:40 pmCRL-SEA
28h 20m2 stops
$793Multiple Airlines
Find Deal
Thu, Nov 20 - Fri, Nov 28
Multiple Airlines Logo
8:10 am - 7:45 pmSEA-CRL
26h 35m3 stops
Multiple Airlines Logo
6:40 am - 10:16 pmCRL-SEA
24h 36m3 stops
$906Multiple Airlines
Find Deal
Thu, Nov 20 - Fri, Nov 28
Multiple Airlines Logo
1:50 pm - 10:55 pmSEA-CRL
24h 05m3 stops
Multiple Airlines Logo
8:10 am - 10:16 pmCRL-SEA
23h 06m2 stops
$911Multiple Airlines
Find Deal
Thu, Oct 16 - Tue, Jan 13
Multiple Airlines Logo
8:40 am - 10:35 pmSEA-CRL
28h 55m2 stops
Multiple Airlines Logo
8:10 am - 10:16 pmCRL-SEA
23h 06m2 stops
$920Multiple Airlines
Find Deal
Thu, Oct 16 - Tue, Jan 13
Multiple Airlines Logo
10:05 am - 8:30 amSEA-CRL
37h 25m2 stops
Multiple Airlines Logo
1:10 pm - 6:20 pmCRL-SEA
14h 10m1 stop
$1,027Multiple Airlines
Find Deal
Sat, Nov 15 - Fri, Nov 21
Multiple Airlines Logo
7:55 am - 6:35 pmSEA-CRL
25h 40m2 stops
Multiple Airlines Logo
1:10 pm - 6:20 pmCRL-SEA
14h 10m1 stop
$1,099Multiple Airlines
Find Deal
Thu, Nov 20 - Fri, Nov 28
Multiple Airlines Logo
7:57 am - 12:30 pmSEA-CRL
19h 33m2 stops
Multiple Airlines Logo
1:10 pm - 6:20 pmCRL-SEA
14h 10m1 stop
$1,108Multiple Airlines
Find Deal
Fri, Nov 21 - Fri, Nov 28

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Charleroi Brussels Airport 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, momondo users made 832,500 searches. Data last updated October 5, 2025.
Use the filters below to find and compare flights from Seattle to Charleroi Brussels Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Sat 11/15

5:50 am-12:30 pm

3 stops21h 40m

Charleroi Brussels

Fri 11/21

5:40 pm-12:10 pm

2 stops27h 30m

$625

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Thu 11/6

2:00 pm-8:05 pm

2 stops21h 05m

Charleroi Brussels

Thu 11/20

12:15 pm-12:10 pm

2 stops32h 55m

$723

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Thu 11/6

2:00 pm-8:05 pm

2 stops21h 05m

Charleroi Brussels

Thu 11/20

12:15 pm-1:20 pm

3 stops34h 05m

$745

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Thu 11/20

5:40 pm-7:55 pm

2 stops17h 15m

Charleroi Brussels

Fri 11/28

8:20 pm-3:40 pm

2 stops28h 20m

$793

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Thu 11/20

8:10 am-7:45 pm

3 stops26h 35m

Charleroi Brussels

Fri 11/28

6:40 am-10:16 pm

3 stops24h 36m

$906

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Thu 10/16

1:50 pm-10:55 pm

3 stops24h 05m

Charleroi Brussels

Tue 1/13

8:10 am-10:16 pm

2 stops23h 06m

$911

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Thu 10/16

8:40 am-10:35 pm

2 stops28h 55m

Charleroi Brussels

Tue 1/13

8:10 am-10:16 pm

2 stops23h 06m

$920

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Sat 11/15

10:05 am-8:30 am

2 stops37h 25m

Charleroi Brussels

Fri 11/21

1:10 pm-6:20 pm

1 stop14h 10m

$1,027

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Thu 11/20

7:55 am-6:35 pm

2 stops25h 40m

Charleroi Brussels

Fri 11/28

1:10 pm-6:20 pm

1 stop14h 10m

$1,099

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Fri 11/21

7:57 am-12:30 pm

2 stops19h 33m

Charleroi Brussels

Fri 11/28

1:10 pm-6:20 pm

1 stop14h 10m

$1,108

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

When to book flights from Seattle to Charleroi Brussels Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Charleroi Brussels Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Charleroi Brussels Airport (SEA to CRL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Charleroi Brussels Airport

Direct flights

None
There are no direct flights from Seattle to Charleroi Brussels Airport. There are no popular flight routes from Seattle to Charleroi Brussels Airport.
Search flight deals

  • How far is Seattle/Tacoma Intl to Charleroi Brussels by plane?

    There are 4956.5 mi between Seattle/Tacoma Intl and Charleroi Brussels. Typically, this will take 16h 15m by plane in normal conditions.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Charleroi Brussels Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Charleroi Brussels Airport refresh daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Charleroi Brussels Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Charleroi Brussels Airport.

  • What documentation or ID do you need to fly to Charleroi Brussels Airport?

    The necessary travel and health documents for your Charleroi Brussels Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Seattle to Charleroi Brussels Airport?

    Confirm your travel details to search for the latest offers for flights from Seattle to Charleroi Brussels Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Seattle to Charleroi Brussels Airport with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Brussels?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Brussels. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Brussels with flexible booking policies on momondo?

momondo does allow users to show only those flights to Brussels from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Brussels?

momondo helps you find the best flight between Seattle and Brussels by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Brussels right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Brussels from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Charleroi Brussels Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 11/4
Tue 11/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Brussels

Popular cities in Belgium

Popular flights according to clicks in the last 7 days on momondo
Flights to Brussels Bruxelles-National Airport