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Bruxelles-National

$312+ Cheap flights from St. Louis (STL) to Bruxelles-National (BRU)

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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BRU
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Cheap flight deals from St. Louis to Bruxelles-National

Cheapest flights from St. Louis to Bruxelles-National
Explore the most affordable flight options available from St. Louis to Bruxelles-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.

This Travelocity deal was found by Cheapflights users on 7/21. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/304:05 pm
STL
-
BRU
2 stops14h 10m
Multiple Airlines
Mon 12/148:10 pm
BRU
-
STL
2 stops50h 16m
Multiple Airlines
Deal found 7/21$759
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Sun 11/298:33 am
STL
-
BRU
1 stop17h 22m
United Airlines
Wed 12/24:55 pm
BRU
-
STL
2 stops35h 18m
United Airlines
Deal found 7/20$769
This United Airlines deal was found by Cheapflights users on 7/21. 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 11/303:15 pm
STL
-
BRU
2 stops15h 00m
United Airlines
Mon 12/1410:10 am
BRU
-
STL
1 stop13h 46m
United Airlines
Deal found 7/21$798
This Finnair deal was found by Cheapflights users on 7/20. 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.
Wed 9/3011:01 am
STL
-
BRU
2 stops24h 19m
Multiple Airlines
Mon 10/57:05 pm
BRU
-
STL
2 stops33h 54m
Multiple Airlines
Deal found 7/20$826
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Tue 8/2512:10 pm
STL
-
BRU
1 stop12h 00m
United Airlines
Wed 9/29:30 am
BRU
-
STL
2 stops32h 47m
United Airlines
Deal found 7/24$843

Find flight deals from St. Louis to Bruxelles-National

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Bruxelles-National (BRU). 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 July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$759
(Travelocity)

One-way from

$312
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,070
Provider with most accurate pricing for Lambert-St Louis-Brussels Bruxelles-National flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Brussels Bruxelles-National flights.
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From Lambert-St Louis to Brussels Bruxelles-National
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One-way flight from Lambert-St Louis to Brussels Bruxelles-National
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($374 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($102 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Bruxelles-National 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 July 25, 2026.
Use the filters below to find and compare flights from St. Louis to Brussels Bruxelles-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Sun 11/29

8:33 am-8:55 am

1 stop17h 22m

Brussels Bruxelles-National

Wed 12/2

4:55 pm-9:13 pm

2 stops35h 18m

$769

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Wed 9/30

11:01 am-6:20 pm

2 stops24h 19m

Brussels Bruxelles-National

Mon 10/5

7:05 pm-9:59 pm

2 stops33h 54m

$831
Quickest round-trip

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Wed 9/30

7:30 am-7:10 am

2 stops16h 40m

Brussels Bruxelles-National

Mon 10/5

2:25 pm-1:25 pm

1 stop30h 00m

$862
Cheapest one-way
Quickest one-way

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Tue 10/13

9:35 pm-3:15 pm

1 stop10h 40m

$447

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Mon 8/3

5:58 pm-9:40 am

2 stops32h 42m

$454

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Mon 8/3

7:51 pm-9:55 am

2 stops31h 04m

$609

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Mon 8/3

12:10 pm-7:10 am

1 stop12h 00m

$635

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Fri 8/14

9:35 pm-7:15 pm

1 stop14h 40m

$653

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Mon 8/3

9:55 am-12:55 pm

3 stops20h 00m

$2,775

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Sorted by cheapest first

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

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 St. Louis to Bruxelles-National in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars

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

Have a flexible travel schedule? Discover the best time to fly to Bruxelles-National from St. Louis 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 St. Louis to Brussels Bruxelles-National Airport

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

Currently, February is the cheapest month in which you can book a flight from St. Louis to Brussels Bruxelles-National Airport (average of $494). Flying from St. Louis to Brussels Bruxelles-National Airport in December is currently the most expensive (average of $2,205). 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.

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

Airfare is below average for this route at the moment.

St. Louis to Brussels Bruxelles-National Airport flights typically cost between $968 and $1,234 in November.
The cheapest round-trip price found within the last 5 days was $759 on Multiple Airlines (Nov 30-Dec 14).

Reviews of airlines servicing Bruxelles-National

Get insights into the airlines that provide service to Bruxelles-National. 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 Bruxelles-National. Reviews last updated July 25, 2026.
Read reviews from past customers who have flown United Airlines and Lufthansa from St. Louis to Brussels Bruxelles-National Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,035 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
10,035 reviews
United Airlines
7.4
Good
10,035 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
Lufthansa
6.8
Okay
8,155 reviews
United Airlines
7.4
Good
10,035 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Bruxelles-National. 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 from for flights from St. Louis to Brussels Bruxelles-National?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Brussels Bruxelles-National. 2 airlines have flights from Lambert-St Louis to Brussels Bruxelles-National on a regular basis. Booking flights from Lambert-St Louis to Brussels Bruxelles-National should not be difficult; the airport handles an average of 0 outbound flights to Brussels Bruxelles-National per day.

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

    A quick flight from St. Louis to Brussels Bruxelles-National Airport can take about 17h 22m. United Airlines provides one of the quickest options available for as low as $769. There are 4393 mi between St. Louis and Brussels Bruxelles-National Airport.

  • What are the cheapest airlines flying from St. Louis to Brussels Bruxelles-National Airport round-trip?

    Our cheapest airline available from St. Louis to Brussels Bruxelles-National Airport is Lufthansa. Our recent data shows that you can find tickets from as low as $441 on this airline. An additional option worth looking into is United Airlines, starting at $574. These flights start at 59% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Bruxelles-National 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 St. Louis to Brussels Bruxelles-National Airport?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Brussels Bruxelles-National Airport (average of $494). Flying from St. Louis to Brussels Bruxelles-National Airport in December is currently the most expensive (average of $2,205). 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
Mons
Hasselt
Charleroi
Mechelen
Zaventem

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Alternative routes for St. Louis to Bruxelles-National

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

Top 2 airlines flying from St. Louis to Bruxelles-National

Discover the top 2 airlines that operate flights from St. Louis to Bruxelles-National. 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 July 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$441Average$1,282FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$574Average$981FlexibilityNo cancel feeOn-time69%

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