HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$431+ Cheap flights from Bruxelles-National (BRU) to St. Louis (STL)

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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — STL
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bruxelles-National to St. Louis 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 Bruxelles-National to St. Louis

Cheapest flights from Bruxelles-National to St. Louis
Explore the most affordable flight options available from Bruxelles-National to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This Finnair deal was found by Cheapflights users on 1/25. 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.
Mon 8/247:05 pm
BRU
-
STL
2 stops31h 25m
Multiple Airlines
Thu 9/312:23 pm
STL
-
BRU
2 stops20h 47m
Multiple Airlines
Deal found 1/25$519
This American Airlines deal was found by Cheapflights users on 1/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:55 am
BRU
-
STL
1 stop15h 35m
American Airlines
Mon 9/144:29 pm
STL
-
BRU
2 stops14h 56m
American Airlines
Deal found 1/25$614
This British Airways deal was found by Cheapflights users on 1/25. 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.
Wed 9/211:00 am
BRU
-
STL
1 stop15h 30m
British Airways
Thu 9/104:14 pm
STL
-
BRU
2 stops16h 56m
British Airways
Deal found 1/25$617
This American Airlines deal was found by Cheapflights users on 1/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:50 am
BRU
-
STL
2 stops16h 29m
American Airlines
Mon 9/144:14 pm
STL
-
BRU
2 stops19h 56m
American Airlines
Deal found 1/25$620
This KLM deal was found by Cheapflights users on 1/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/910:00 am
BRU
-
STL
1 stop29h 05m
KLM
Mon 3/1612:04 pm
STL
-
BRU
1 stop13h 56m
KLM
Deal found 1/27$621
This British Airways deal was found by Cheapflights users on 1/25. 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.
Sat 8/2210:40 am
BRU
-
STL
2 stops20h 11m
British Airways
Sun 9/610:08 am
STL
-
BRU
2 stops21h 02m
British Airways
Deal found 1/25$623
This Delta deal was found by Cheapflights users on 1/25. 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.
Mon 3/96:15 am
BRU
-
STL
2 stops17h 38m
Delta
Mon 3/1612:28 pm
STL
-
BRU
2 stops19h 47m
Delta
Deal found 1/25$624
This Delta deal was found by Cheapflights users on 1/27. 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.
Fri 3/132:45 pm
BRU
-
STL
2 stops27h 22m
Delta
Fri 3/206:32 am
STL
-
BRU
2 stops19h 28m
Delta
Deal found 1/27$627
This Finnair deal was found by Cheapflights users on 1/25. 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.
Fri 9/46:30 am
BRU
-
STL
2 stops24h 21m
Multiple Airlines
Fri 9/119:35 pm
STL
-
BRU
1 stop16h 35m
Multiple Airlines
Deal found 1/25$635
This British Airways deal was found by Cheapflights users on 1/25. 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.
Sat 8/2210:10 pm
BRU
-
STL
1 stop28h 20m
British Airways
Fri 9/45:32 pm
STL
-
BRU
2 stops18h 43m
British Airways
Deal found 1/25$641
This British Airways deal was found by Cheapflights users on 1/25. 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.
Sat 8/2210:40 am
BRU
-
STL
2 stops15h 34m
British Airways
Thu 9/36:06 am
STL
-
BRU
2 stops27h 04m
British Airways
Deal found 1/25$646

Find flight deals from Bruxelles-National to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Bruxelles-National (BRU) to St. Louis (STL). 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$620
(KLM)

One-way from

$431
(Finnair)

Popular in

July

Cheapest in

May

Average price

$766
Provider with most accurate pricing for Brussels Bruxelles-National-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Brussels Bruxelles-National-Lambert-St Louis flights.
Search Deals
From Brussels Bruxelles-National to Lambert-St Louis
Search Deals
One-way flight from Brussels Bruxelles-National to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bruxelles-National to St. Louis 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 January 27, 2026.
Use the filters below to find and compare flights from Brussels Bruxelles-National Airport to St. Louis that are best for you.

Fly from

Bruxelles-National

Fly to

St. Louis

Route

Depart

Return

Price

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 3/9

10:00 am-5:53 pm

1 stop13h 53m

Lambert-St Louis

Wed 3/18

12:04 pm-8:00 am

1 stop13h 56m

$620

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 3/9

11:50 am-9:11 pm

2 stops15h 21m

Lambert-St Louis

Wed 3/18

4:13 pm-1:50 pm

2 stops15h 37m

$620

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 3/9

10:00 am-11:58 pm

1 stop19h 58m

Lambert-St Louis

Mon 3/16

12:04 pm-8:00 am

1 stop13h 56m

$620

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 3/9

11:50 am-9:11 pm

2 stops15h 21m

Lambert-St Louis

Mon 3/16

1:34 pm-11:10 am

2 stops15h 36m

$620

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 3/9

11:50 am-11:44 pm

2 stops17h 54m

Lambert-St Louis

Wed 3/18

6:57 pm-4:20 pm

2 stops15h 23m

$623

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 3/13

6:15 am-11:58 pm

2 stops23h 43m

Lambert-St Louis

Fri 3/20

6:00 am-8:00 am

1 stop20h 00m

$623

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 5/29

10:45 am-11:42 pm

2 stops19h 57m

$431

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Wed 4/22

7:00 am-1:25 pm

1 stop13h 25m

$1,296

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Wed 4/22

11:20 am-10:14 pm

2 stops17h 54m

$1,775

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Wed 4/22

11:00 am-7:30 pm

1 stop15h 30m

$1,800

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

  • Most accurate provider: When it comes to deals on Brussels Bruxelles-National Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Brussels Bruxelles-National Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Brussels Bruxelles-National Airport-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Brussels Bruxelles-National Airport-St. Louis 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 Brussels Bruxelles-National Airport-St. Louis 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 Bruxelles-National to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Bruxelles-National with our price prediction graph.
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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated January 27, 2026.
See what other customers who have flown with United Airlines from Brussels Bruxelles-National Airport to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,205 reviews

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,205 reviews
United Airlines
7.4
Good
9,205 reviews

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from Bruxelles-National to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from Brussels Bruxelles-National?

    If you book a flight to St. Louis from Brussels Bruxelles-National, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Brussels Bruxelles-National to Lambert-St Louis per day from 1 airline.

  • How long is the flight from Brussels Bruxelles-National Airport to St. Louis?

    A quick flight from Brussels Bruxelles-National Airport to St. Louis can take about 13h 53m. KLM provides one of the quickest options available for as low as $620. Airlines will cover a distance of 4393 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Brussels Bruxelles-National Airport to St. Louis round-trip?

    Cheapflights users have booked flights from Brussels Bruxelles-National Airport to St. Louis round-trip from $652. United Airlines is 9% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Bruxelles-National to St. Louis that include hotel bookings?

    Yes. In addition to deals on Bruxelles-National to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bruxelles-National to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bruxelles-National to St. Louis.

  • Can I find deals for business class flights from Bruxelles-National to St. Louis?

    Yes. Cheapflights offers flight deals from Bruxelles-National to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

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.

Alternative routes for Bruxelles-National to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Bruxelles-National to Kansas City flights

Top airline flying from Bruxelles-National to St. Louis

Discover the top airline that operate flights from Bruxelles-National to St. Louis. 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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$652Average$848FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.