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Cheap flights from Seattle to Brussels from $283

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 10/25. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Brussels

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:40 pm - 9:15 pm
SEA
-
CRL
20h 35m
2 stops
Multiple Airlines Logo
9:15 pm - 9:04 pm
CRL
-
SEA
32h 49m
3 stops
$797Multiple Airlines
Tue, Sep 8 - Mon, Sep 14
Multiple Airlines Logo
3:40 pm - 10:55 pm
SEA
-
CRL
22h 15m
3 stops
Multiple Airlines Logo
4:50 pm - 4:00 pm
CRL
-
SEA
32h 10m
2 stops
$817Multiple Airlines
Mon, Oct 5 - Fri, Oct 23
Multiple Airlines Logo
3:40 pm - 10:55 pm
SEA
-
CRL
22h 15m
3 stops
Multiple Airlines Logo
9:50 am - 6:45 pm
CRL
-
SEA
41h 55m
3 stops
$821Multiple Airlines
Mon, Oct 5 - Fri, Oct 23
Multiple Airlines Logo
3:40 pm - 10:55 pm
SEA
-
CRL
22h 15m
3 stops
Multiple Airlines Logo
9:50 am - 6:45 pm
CRL
-
SEA
17h 55m
2 stops
$880Multiple Airlines
Mon, Oct 5 - Fri, Oct 23
Multiple Airlines Logo
8:00 am - 8:35 pm
SEA
-
CRL
27h 35m
3 stops
Multiple Airlines Logo
8:25 am - 9:40 am
CRL
-
SEA
34h 15m
2 stops
$909Multiple Airlines
Mon, Sep 14 - Sat, Sep 19
Multiple Airlines Logo
8:00 am - 8:35 pm
SEA
-
CRL
27h 35m
3 stops
Multiple Airlines Logo
8:25 am - 10:47 pm
CRL
-
SEA
23h 22m
3 stops
$912Multiple Airlines
Mon, Sep 14 - Sat, Sep 19
Multiple Airlines Logo
7:10 pm - 9:25 pm
SEA
-
CRL
17h 15m
1 stop
Multiple Airlines Logo
8:25 am - 9:40 am
CRL
-
SEA
34h 15m
2 stops
$924Multiple Airlines
Sun, Sep 13 - Sat, Sep 19
Multiple Airlines Logo
3:40 pm - 10:55 pm
SEA
-
CRL
22h 15m
2 stops
Multiple Airlines Logo
9:50 am - 6:45 pm
CRL
-
SEA
17h 55m
2 stops
$925Multiple Airlines
Mon, Oct 5 - Fri, Oct 23
Multiple Airlines Logo
7:10 pm - 9:25 pm
SEA
-
CRL
17h 15m
1 stop
Multiple Airlines Logo
9:50 am - 9:40 am
CRL
-
SEA
32h 50m
2 stops
$946Multiple Airlines
Sun, Sep 13 - Fri, Sep 18
Multiple Airlines Logo
5:30 pm - 5:45 pm
SEA
-
CRL
15h 15m
1 stop
Multiple Airlines Logo
8:50 am - 5:50 pm
CRL
-
SEA
18h 00m
1 stop
$954Multiple Airlines
Wed, Aug 5 - Fri, Aug 21

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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 July 19, 2026.
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

Cheapest round-trip

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Tue 9/8

3:40 pm-9:15 pm

2 stops20h 35m

Charleroi Brussels

Mon 9/14

9:15 pm-9:04 pm

3 stops32h 49m

$797

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Mon 10/5

3:40 pm-10:55 pm

3 stops22h 15m

Charleroi Brussels

Fri 10/23

4:50 pm-4:00 pm

2 stops32h 10m

$817

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Mon 10/5

3:40 pm-10:55 pm

3 stops22h 15m

Charleroi Brussels

Fri 10/23

9:50 am-6:45 pm

3 stops41h 55m

$821

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Mon 10/5

3:40 pm-10:55 pm

3 stops22h 15m

Charleroi Brussels

Fri 10/23

9:50 am-6:45 pm

2 stops17h 55m

$880

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Mon 9/14

8:00 am-8:35 pm

3 stops27h 35m

Charleroi Brussels

Sat 9/19

8:25 am-9:40 am

2 stops34h 15m

$909

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Mon 9/14

8:00 am-8:35 pm

3 stops27h 35m

Charleroi Brussels

Sat 9/19

8:25 am-10:47 pm

3 stops23h 22m

$912

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Sun 9/13

7:10 pm-9:25 pm

1 stop17h 15m

Charleroi Brussels

Sat 9/19

8:25 am-9:40 am

2 stops34h 15m

$924

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Mon 10/5

3:40 pm-10:55 pm

2 stops22h 15m

Charleroi Brussels

Fri 10/23

9:50 am-6:45 pm

2 stops17h 55m

$925

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Sun 9/13

7:10 pm-9:25 pm

1 stop17h 15m

Charleroi Brussels

Fri 9/18

9:50 am-9:40 am

2 stops32h 50m

$946
Quickest round-trip

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Wed 8/5

5:30 pm-5:45 pm

1 stop15h 15m

Charleroi Brussels

Fri 8/21

8:50 am-5:50 pm

1 stop18h 00m

$954

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Fastest flight time

15h 15m

Direct flights

None
The fastest flight from Seattle to Charleroi Brussels Airport takes 15h 15m
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

Frequently asked questions about flying from Seattle to Charleroi Brussels Airport

  • 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 15h 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.

Frequently asked questions about flying from Seattle to Charleroi Brussels Airport

  • 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.

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