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$538+ Cheap flights from Bruxelles-National (BRU) to St. Louis (STL)

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 6/21. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — STL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$549
(Flighttix)

Popular in

November

Cheapest in

May

Average price

$621
From Brussels Bruxelles-National to Lambert-St Louis
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Highest demand for flights based on searches. 27% potential increase in price ($298 potential increase over avg. RT price).
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Cheapest flight prices on average. 14% potential price decrease ($103 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Flighttix deal was found by Cheapflights users on 6/11. 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.
Sat 6/2110:40 amBRU - STL
2 stops19h 39mBritish Airways
Fri 7/187:38 pmSTL - BRU
2 stops18h 37mBritish Airways
Deal found 6/11$538
This Flighttix deal was found by Cheapflights users on 6/11. 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.
Mon 6/2310:00 amBRU - STL
2 stops33h 36mAir Canada
Mon 6/301:30 pmSTL - BRU
1 stop11h 30mAir Canada
Deal found 6/11$680
This Flighttix deal was found by Cheapflights users on 6/11. 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.
Sat 6/2110:00 amBRU - STL
1 stop17h 48mMultiple Airlines
Fri 7/1811:28 amSTL - BRU
1 stop12h 32mMultiple Airlines
Deal found 6/11$699
This United Airlines deal was found by Cheapflights users on 6/11. 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 6/2310:00 amBRU - STL
1 stop16h 58mUnited Airlines
Mon 6/301:04 pmSTL - BRU
1 stop11h 11mUnited Airlines
Deal found 6/11$710
This Virgin Atlantic deal was found by Cheapflights users on 6/11. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/510:45 amBRU - STL
2 stops16h 45mVirgin Atlantic
Thu 7/1710:46 amSTL - BRU
1 stop14h 54mVirgin Atlantic
Deal found 6/11$727
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 7/510:45 amBRU - STL
2 stops29h 52mDelta
Thu 7/176:00 amSTL - BRU
2 stops18h 30mDelta
Deal found 6/11$729
This Lufthansa deal was found by Cheapflights users on 6/10. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/110:15 amBRU - STL
1 stop12h 32mLufthansa
Fri 8/221:10 pmSTL - BRU
1 stop11h 05mLufthansa
Deal found 6/10$807
This KLM deal was found by Cheapflights users on 6/12. 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.
Fri 8/16:10 amBRU - STL
2 stops15h 20mKLM
Fri 8/2211:02 amSTL - BRU
2 stops14h 38mKLM
Deal found 6/12$924
This Iberia deal was found by Cheapflights users on 6/11. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2312:05 pmBRU - STL
2 stops28h 26mIberia
Mon 6/301:24 pmSTL - BRU
2 stops18h 21mIberia
Deal found 6/11$929

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 June 12, 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

Mon 6/23

9:15 pm-3:44 pm

2 stops25h 29m

Lambert-St Louis

Mon 6/30

12:28 pm-10:05 am

2 stops14h 37m

$549

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/23

10:00 am-12:36 pm

2 stops33h 36m

Lambert-St Louis

Mon 6/30

1:30 pm-8:00 am

1 stop11h 30m

$680

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/23

10:00 am-7:58 pm

1 stop16h 58m

Lambert-St Louis

Mon 6/30

1:04 pm-7:15 am

1 stop11h 11m

$710

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 7/25

10:15 am-10:45 pm

1 stop19h 30m

Lambert-St Louis

Fri 8/1

9:15 am-7:50 am

1 stop15h 35m

$722

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sat 7/5

10:45 am-8:30 pm

2 stops16h 45m

Lambert-St Louis

Thu 7/17

10:46 am-8:40 am

1 stop14h 54m

$727

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sat 7/5

10:45 am-9:37 am

2 stops29h 52m

Lambert-St Louis

Thu 7/17

6:00 am-7:30 am

2 stops18h 30m

$729

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 8/1

10:15 am-3:47 pm

1 stop12h 32m

Lambert-St Louis

Fri 8/22

1:10 pm-7:15 am

1 stop11h 05m

$807

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 8/1

10:45 am-11:53 pm

1 stop20h 08m

Lambert-St Louis

Fri 8/22

11:02 am-8:40 am

2 stops14h 38m

$809

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 6/23

12:05 pm-9:31 am

2 stops28h 26m

Lambert-St Louis

Mon 6/30

1:24 pm-2:45 pm

2 stops18h 21m

$929

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sat 10/18

10:20 am-11:49 pm

2 stops20h 29m

$562

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 14 results
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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

What is the cheapest month to book a flight from Brussels Bruxelles-National Airport to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to St. Louis (average of $311). Flying from Brussels Bruxelles-National Airport to St. Louis in March is currently the most expensive (average of $356). 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.

What is the cheapest time of day to fly from BRU to STL?

Find hourly flight availability from Bruxelles-National to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Brussels Bruxelles-National Airport to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 12, 2025.
See what other customers who have flown with Delta, KLM and United Airlines from Brussels to St. Louis have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
652 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,537 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines flying 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 $549. Other airlines that can offer you cheap pricing are Air Canada, from $680, and United Airlines, from $710. British Airways is 31% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Brussels Bruxelles-National Airport to St. Louis one-way?

    The cheapest airlines for a one-way flight from Brussels Bruxelles-National Airport to St. Louis are Aer Lingus ($562), Lufthansa ($665), and Air Canada ($1,632).

  • 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.

  • What is the cheapest month to book a flight from Brussels Bruxelles-National Airport to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to St. Louis (average of $311). Flying from Brussels Bruxelles-National Airport to St. Louis in March is currently the most expensive (average of $356). 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.

See more FAQs

Traveling to a place near Brussels Bruxelles-National Airport?

Book flights to Brussels Bruxelles-National Airport if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Festus
Alton
Farmington

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$536Average$732FlexibilityNo cancel feeOn-time70%

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