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

$399+ 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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — STL
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
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.

Find 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 October 28, 2025.

This Flysmarter deal was found by Cheapflights users on 10/28. 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.
Sun 11/237:00 amBRU - STL
1 stop13h 55mLufthansa
Tue 12/26:42 pmSTL - BRU
2 stops15h 33mLufthansa
Deal found 10/28$639
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Fri 11/217:00 amBRU - STL
1 stop13h 55mLufthansa
Tue 11/251:10 pmSTL - BRU
1 stop11h 05mLufthansa
Deal found 10/26$641
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2311:20 amBRU - STL
2 stops18h 14mAmerican Airlines
Tue 12/25:56 pmSTL - BRU
2 stops16h 04mAmerican Airlines
Deal found 10/27$644
This Flighttix deal was found by Cheapflights users on 10/26. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/217:00 amBRU - STL
1 stop13h 55mMultiple Airlines
Tue 11/2510:00 amSTL - BRU
2 stops14h 50mMultiple Airlines
Deal found 10/26$652
This Flighttix deal was found by Cheapflights users on 10/26. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2110:00 amBRU - STL
2 stops19h 45mAir Canada
Tue 11/2510:00 amSTL - BRU
2 stops14h 50mAir Canada
Deal found 10/26$656
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Fri 11/217:00 amBRU - STL
1 stop13h 55mUnited Airlines
Sun 11/306:30 amSTL - BRU
1 stop19h 25mUnited Airlines
Deal found 10/26$658
This Gotogate deal was found by Cheapflights users on 10/26. 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.
Fri 11/212:25 pmBRU - STL
2 stops32h 04mAir Canada
Sun 11/304:05 pmSTL - BRU
2 stops32h 45mAir Canada
Deal found 10/26$661

Cheap 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$639
(Flysmarter)

One-way from

$399
(Finnair)

Popular in

April

Cheapest in

June

Average price

$689
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. 6% potential increase in price ($53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 28, 2025.
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

Sun 11/23

10:00 am-3:46 pm

2 stops36h 46m

Lambert-St Louis

Tue 12/2

6:42 pm-7:50 am

2 stops30h 08m

$641

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sun 11/23

11:20 am-10:34 pm

2 stops18h 14m

Lambert-St Louis

Tue 12/2

5:56 pm-5:00 pm

2 stops16h 04m

$644

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Wed 12/3

11:50 am-1:29 pm

2 stops32h 39m

Lambert-St Louis

Sun 12/7

8:38 am-10:50 am

2 stops19h 12m

$644

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 11/21

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

Tue 11/25

10:00 am-7:50 am

2 stops14h 50m

$652

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sun 11/23

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

Tue 12/2

6:42 pm-4:15 pm

2 stops14h 33m

$655

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 11/21

10:00 am-10:51 am

2 stops31h 51m

Lambert-St Louis

Tue 11/25

10:00 am-7:50 am

2 stops14h 50m

$657

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sun 11/23

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

Tue 12/2

8:30 am-7:15 am

1 stop15h 45m

$658

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 11/21

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

Sun 11/30

6:30 am-8:55 am

1 stop19h 25m

$658

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Thu 3/12

8:35 pm-10:24 pm

2 stops31h 49m

$399

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Wed 3/11

8:30 pm-10:24 pm

2 stops31h 54m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 15 results
1
2

Compare providers for flights from Bruxelles-National to St. Louis

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 Bruxelles-National to St. Louis in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Brussels Bruxelles-National Airport-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Brussels Bruxelles-National Airport-St. Louis flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Cheapflights Insights

Everything you need to know about your flight from Brussels Bruxelles-National Airport to St. Louis

How much does it cost to fly round-trip from Brussels Bruxelles-National Airport to St. Louis?

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 October 28, 2025.
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
9,001 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,001 reviews
United Airlines
7.4
Good
9,001 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 18h 14m. Air Canada provides one of the quickest options available for as low as $644. 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 11% 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
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$652Average$842FlexibilityNo 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.