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 12h 40m. Lufthansa provides one of the quickest options available for as low as $443. There are 4393 mi between St. Louis and Brussels Bruxelles-National Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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 United Airlines. Our recent data shows that you can find tickets from as low as $654 on this airline. An additional option worth looking into is Lufthansa, starting at $829. These flights start at 34% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Brussels Bruxelles-National Airport ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. August is typically the driest time to visit Brussels Bruxelles-National Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to Brussels Bruxelles-National Airport, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 37.4 F).

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

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.

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.

$443+ Flights from St. Louis to Brussels Bruxelles-National Airport

Q: 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 $1,687 and $2,267 in January. The cheapest round-trip price found within the last 3 days was $443 on Lufthansa (Jan 12-Jan 21).

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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 December 12, 2025.

Mon 12/1512:55 pmSTL - BRU

1 stop11h 20mLufthansa

Thu 12/2510:30 amBRU - STL

2 stops15h 52mLufthansa

Deal found 12/11

$1,749

Mon 12/155:15 amSTL - BRU

3 stops46h 35mMultiple Airlines

Thu 12/2511:30 amBRU - STL

2 stops42h 26mMultiple Airlines

Deal found 12/10

$12,099

Best flights from St. Louis to Bruxelles-National
Discover carefully curated flight deals from St. Louis to Bruxelles-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Mon 1/121:15 pmSTL - BRU

1 stop12h 40mLufthansa

Wed 1/216:45 amBRU - STL

2 stops17h 58mLufthansa

Deal found 12/11

$443

Mon 1/124:05 pmSTL - BRU

2 stops38h 10mAir Canada

Wed 1/217:00 amBRU - STL

2 stops39h 29mAir Canada

Deal found 12/11

$484

Wed 2/410:10 amSTL - BRU

2 stops20h 05mUnited Airlines

Sun 2/810:00 amBRU - STL

2 stops40h 27mUnited Airlines

Deal found 12/9

$484

Wed 2/184:05 pmSTL - BRU

2 stops14h 10mMultiple Airlines

Wed 2/2510:10 amBRU - STL

1 stop18h 50mMultiple Airlines

Deal found 12/10

$501

Thu 1/294:05 pmSTL - BRU

2 stops33h 50mAir Canada

Tue 2/310:00 amBRU - STL

2 stops35h 30mAir Canada

Deal found 12/10

$486

Thu 1/294:05 pmSTL - BRU

2 stops14h 10mUnited Airlines

Tue 2/310:00 amBRU - STL

2 stops35h 30mUnited Airlines

Deal found 12/11

$486

Thu 1/2911:22 amSTL - BRU

1 stop13h 43mLufthansa

Tue 2/310:30 amBRU - STL

2 stops20h 29mLufthansa

Deal found 12/10

$493

Wed 2/44:05 pmSTL - BRU

2 stops14h 10mAir Canada

Sun 2/810:00 amBRU - STL

2 stops36h 29mAir Canada

Deal found 12/10

$505

Last-minute flights from St. Louis to Bruxelles-National
Discover last-minute flight deals from St. Louis to Bruxelles-National. Data last updated December 12, 2025 and is based on user searches.

Mon 1/121:15 pmSTL - BRU

1 stop12h 40mLufthansa

Wed 1/216:45 amBRU - STL

2 stops17h 58mLufthansa

Deal found 12/11

$443

Mon 1/124:05 pmSTL - BRU

2 stops38h 10mAir Canada

Wed 1/217:00 amBRU - STL

2 stops39h 29mAir Canada

Deal found 12/11

$484

Mon 1/126:00 amSTL - BRU

2 stops27h 40mBritish Airways

Mon 1/198:45 pmBRU - STL

2 stops32h 59mBritish Airways

Deal found 12/11

$508

Mon 1/121:15 pmSTL - BRU

1 stop12h 40mLufthansa

Mon 1/197:40 pmBRU - STL

2 stops34h 18mLufthansa

Deal found 12/11

$517

Thu 1/294:05 pmSTL - BRU

2 stops14h 10mUnited Airlines

Tue 2/310:00 amBRU - STL

2 stops35h 30mUnited Airlines

Deal found 12/11

$486

Thu 1/2911:22 amSTL - BRU

1 stop13h 43mLufthansa

Tue 2/310:30 amBRU - STL

2 stops20h 29mLufthansa

Deal found 12/10

$493

Thu 1/294:05 pmSTL - BRU

2 stops14h 10mAir Canada

Tue 2/310:00 amBRU - STL

2 stops36h 15mAir Canada

Deal found 12/11

$505

Find flight deals from St. Louis to Bruxelles-National

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$443 (Kiwi.com)
Popular in	December
Cheapest in	February
Average price	$2,205

Provider with most accurate pricing for Lambert-St Louis-Brussels Bruxelles-National flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lambert-St Louis-Brussels Bruxelles-National flights.

Search Deals

From Lambert-St Louis to Brussels Bruxelles-National

Search Deals

Highest demand for flights based on searches. 26% potential increase in price ($353 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 12% potential price decrease ($110 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Mon 1/12

1:15 pm-8:55 am

1 stop12h 40m

Brussels Bruxelles-National

Wed 1/21

6:45 am-5:43 pm

2 stops17h 58m

$443

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Mon 1/12

4:05 pm-1:15 pm

2 stops38h 10m

Brussels Bruxelles-National

Wed 1/21

7:00 am-3:29 pm

2 stops39h 29m

$484

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Wed 2/4

10:10 am-1:15 pm

2 stops20h 05m

Brussels Bruxelles-National

Sun 2/8

10:00 am-7:27 pm

2 stops40h 27m

$484

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Thu 1/29

4:05 pm-8:55 am

2 stops33h 50m

Brussels Bruxelles-National

Tue 2/3

10:00 am-2:30 pm

2 stops35h 30m

$486

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Thu 1/29

4:05 pm-1:15 pm

2 stops14h 10m

Brussels Bruxelles-National

Tue 2/3

10:00 am-2:30 pm

2 stops35h 30m

$486

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Thu 1/29

11:22 am-8:05 am

1 stop13h 43m

Brussels Bruxelles-National

Tue 2/3

10:30 am-11:59 pm

2 stops20h 29m

$493

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Wed 2/18

4:05 pm-1:15 pm

2 stops14h 10m

Brussels Bruxelles-National

Wed 2/25

10:10 am-10:00 pm

1 stop18h 50m

$501

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Wed 2/4

4:05 pm-1:15 pm

2 stops14h 10m

Brussels Bruxelles-National

Sun 2/8

10:00 am-3:29 pm

2 stops36h 29m

$505

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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

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 December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
JustAirTicket	Price Accuracy-	Trust 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 St. Louis-Brussels Bruxelles-National Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Brussels Bruxelles-National Airport flight deals on Cheapflights vs. eDreams >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 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 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, April is the cheapest month in which you can book a flight from St. Louis to Brussels Bruxelles-National Airport (average of $453). Flying from St. Louis to Brussels Bruxelles-National Airport in June is currently the most expensive (average of $1,008). 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 STL to BRU?

Unlike in the evening, when flights are generally more expensive, you can save up to 38% on flights from St. Louis to Brussels Bruxelles-National Airport by exploring options for tickets in the afternoon.

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

Reviews of airlines servicing Bruxelles-National

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

9,095 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

United Airlines

7.4

Good

9,095 reviews

United Airlines

7.4

Good

9,095 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Lufthansa

6.8

Okay

7,626 reviews

United Airlines

7.4

Good

9,095 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

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 12h 40m. Lufthansa provides one of the quickest options available for as low as $443. There are 4393 mi between St. Louis and Brussels Bruxelles-National Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
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 United Airlines. Our recent data shows that you can find tickets from as low as $654 on this airline. An additional option worth looking into is Lufthansa, starting at $829. These flights start at 34% 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, April is the cheapest month in which you can book a flight from St. Louis to Brussels Bruxelles-National Airport (average of $453). Flying from St. Louis to Brussels Bruxelles-National Airport in June is currently the most expensive (average of $1,008). 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

Mons

Hasselt

Charleroi

Mechelen

Zaventem

Browse thousands of different options on Cheapflights for your next trip

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

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$654	Average$805	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$829	Average$2,205	FlexibilityNo cancel fee	On-time76%

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$443+ Cheap flights from St. Louis (STL) to Bruxelles-National (BRU)

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Bruxelles-National

Cheapest flights from St. Louis to Bruxelles-NationalExplore 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 December 12, 2025.

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 December 12, 2025.

Find flight deals from St. Louis to Bruxelles-National

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Brussels Bruxelles-National Airport that are best for you.

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 December.

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.

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?

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

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

Reviews of airlines servicing Bruxelles-National

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.

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?

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

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

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

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

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

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

Traveling to a place near Brussels Bruxelles-National Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Bruxelles-National

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

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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 December 12, 2025.