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Cheap flights from St. Louis (STL) to Brussels from $581

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 10/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — BRU
May 3 — May 101
From?
To?
Fri 5/3
Fri 5/10
1 adult, Economy
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Cheap flight deals from St. Louis to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Brussels (BR1). 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 April 28, 2024.

Popular in

August

Cheapest in

January

Average price

$1,220

Round-trip from

$590
High demand for flights, 40% potential price rise
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Best time to find cheap flights, 41% potential price drop
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Average for round-trip flights in April 2024
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From Lambert-St Louis to Brussels
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What is the cheapest day to fly round-trip from St. Louis to Brussels?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 84% when planning your travel around this day of the week.

What is the cheapest month to fly from St. Louis to Brussels?

January is one of the best times of the year to fly to Brussels from St. Louis. Prices for January average $1,210 per person but you can even find prices for as low as $669. The most expensive prices can be found in the month of August. Opting for a January flight can save you 67% on your journey compared to booking in August

When is the cheapest time to fly from St. Louis to Brussels (STL - BRU)?

Unlike at noon, when flights are generally more expensive, you can save up to 29% on flights from St. Louis to Brussels by exploring options for tickets in the afternoon.

Cheap United Airlines flights from St. Louis to Brussels

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Brussels. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 28, 2024.
Check out some of the cheapest United Airlines flights we've come across from St. Louis to Brussels. Deals update often to give you more flight options matching your criteria
Wed 8/2112:00 pmSTL - BRU
1 stop11h 20mUnited Airlines
Wed 8/2810:00 amBRU - STL
2 stops31h 07mUnited Airlines
Deal found 4/27$813
Tue 10/812:00 pmSTL - BRU
1 stop11h 20mUnited Airlines
Tue 10/2210:00 amBRU - STL
2 stops31h 07mUnited Airlines
Deal found 4/27$943
Mon 7/811:25 amSTL - BRU
1 stop14h 35mUnited Airlines
Tue 7/1610:15 amBRU - STL
1 stop12h 25mUnited Airlines
Deal found 4/27$1,059
Wed 6/261:10 pmSTL - BRU
1 stop12h 50mUnited Airlines
Tue 7/27:10 pmBRU - STL
2 stops27h 57mUnited Airlines
Deal found 4/26$1,214
Fri 5/248:05 amSTL - BRU
1 stop17h 55mUnited Airlines
Wed 6/510:15 amBRU - STL
1 stop13h 57mUnited Airlines
Deal found 4/27$1,329

Cheap Air Canada flights from St. Louis to Brussels

Explore cheap flight options specifically provided by Air Canada for the route between St. Louis and Brussels. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 28, 2024.
Take a gander at the lowest prices we've found on Air Canada flights from St. Louis to Brussels. Check back soon if you're not seeing flights that suit your needs.
Wed 8/2112:00 pmSTL - BRU
1 stop11h 20mAir Canada
Wed 8/2810:00 amBRU - STL
1 stop18h 05mAir Canada
Deal found 4/27$825
Tue 10/812:00 pmSTL - BRU
1 stop11h 20mAir Canada
Tue 10/2210:00 amBRU - STL
1 stop18h 05mAir Canada
Deal found 4/27$955
Tue 10/812:00 pmSTL - BRU
1 stop11h 20mAir Canada
Tue 10/2210:00 amBRU - STL
2 stops17h 00mAir Canada
Deal found 4/27$961
Mon 7/812:00 pmSTL - BRU
1 stop11h 20mAir Canada
Tue 7/1611:20 amBRU - STL
2 stops15h 41mAir Canada
Deal found 4/27$1,024
Mon 5/2711:00 amSTL - BRU
1 stop12h 20mAir Canada
Mon 6/39:30 amBRU - STL
1 stop17h 31mAir Canada
Deal found 4/27$1,221

Cheap St. Louis to Brussels flights in April & May 2024

Find cheap flight options from St. Louis to Brussels specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,991,349 searches. Prices were last updated on April 28, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Brussels in 2024. For more flight deals, be sure to check back very soon.
Mon 5/275:08 pmSTL - BRU
2 stops18h 52mBritish Airways
Mon 6/38:00 pmBRU - STL
2 stops27h 17mBritish Airways
Deal found 4/27$1,196
Mon 5/2711:00 amSTL - BRU
1 stop12h 20mMultiple Airlines
Mon 6/39:20 pmBRU - STL
2 stops25h 01mMultiple Airlines
Deal found 4/27$1,204
Mon 5/2711:00 amSTL - BRU
1 stop12h 20mAir Canada
Mon 6/39:30 amBRU - STL
1 stop17h 31mAir Canada
Deal found 4/27$1,221
Fri 5/2411:38 amSTL - BRU
1 stop14h 22mMultiple Airlines
Wed 6/510:00 amBRU - STL
2 stops35h 14mMultiple Airlines
Deal found 4/27$1,307
Fri 5/248:05 amSTL - BRU
2 stops15h 15mMultiple Airlines
Wed 6/510:00 amBRU - STL
2 stops36h 21mMultiple Airlines
Deal found 4/27$1,325
Fri 5/248:05 amSTL - BRU
1 stop17h 55mUnited Airlines
Wed 6/510:15 amBRU - STL
1 stop13h 57mUnited Airlines
Deal found 4/27$1,329
Fri 5/2411:00 amSTL - BRU
1 stop12h 20mAir Canada
Wed 5/2910:00 amBRU - STL
1 stop18h 05mAir Canada
Deal found 4/28$1,570
Fri 5/248:05 amSTL - BRU
2 stops15h 15mMultiple Airlines
Wed 5/2910:00 amBRU - STL
1 stop18h 05mMultiple Airlines
Deal found 4/28$1,574
Fri 5/248:05 amSTL - BRU
2 stops15h 15mMultiple Airlines
Wed 5/299:30 amBRU - STL
2 stops18h 35mMultiple Airlines
Deal found 4/28$1,580

St. Louis to Brussels 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Brussels in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 28, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Brussels in 2024. For more flight deals, be sure to check back very soon.
Tue 10/82:05 pmSTL - BRU
2 stops21h 25mMultiple Airlines
Tue 10/2210:30 amBRU - STL
2 stops20h 05mMultiple Airlines
Deal found 4/27$581
Wed 8/212:05 pmSTL - BRU
2 stops21h 25mMultiple Airlines
Wed 8/2810:30 amBRU - STL
2 stops20h 09mMultiple Airlines
Deal found 4/28$788
Wed 8/2112:00 pmSTL - BRU
1 stop11h 20mUnited Airlines
Wed 8/2810:00 amBRU - STL
2 stops31h 07mUnited Airlines
Deal found 4/27$813
Wed 8/2112:00 pmSTL - BRU
1 stop11h 20mAir Canada
Wed 8/2810:00 amBRU - STL
1 stop18h 05mAir Canada
Deal found 4/27$825
Tue 10/812:00 pmSTL - BRU
1 stop11h 20mUnited Airlines
Tue 10/2210:00 amBRU - STL
2 stops31h 07mUnited Airlines
Deal found 4/27$943
Tue 10/812:00 pmSTL - BRU
1 stop11h 20mAir Canada
Tue 10/2210:00 amBRU - STL
1 stop18h 05mAir Canada
Deal found 4/27$955
Tue 10/812:58 pmSTL - BRU
1 stop13h 02mMultiple Airlines
Tue 10/2210:00 amBRU - STL
1 stop18h 05mMultiple Airlines
Deal found 4/27$959
Tue 10/812:00 pmSTL - BRU
1 stop11h 20mAir Canada
Tue 10/2210:00 amBRU - STL
2 stops17h 00mAir Canada
Deal found 4/27$961
Mon 7/812:00 pmSTL - BRU
1 stop11h 20mAir Canada
Tue 7/1611:20 amBRU - STL
2 stops15h 41mAir Canada
Deal found 4/27$1,024

One-way flights to Brussels from St. Louis

Search for one-way flight options from St. Louis to Brussels. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,991,349 searches. Data last updated April 28, 2024.
Users in need of a one-way flight from St. Louis to Brussels can choose from these deals. Users in need of a round-trip flight from St. Louis to Brussels instead should update the search form at the top of page.
Sat 7/204:05 pmSTL - BRU
1 stop32h 40mUnited Airlines
Deal found 4/27$764
Sat 7/204:05 pmSTL - BRU
2 stops31h 15mAir Canada
Deal found 4/27$785

Find flights from St. Louis to Brussels within your budget

Customize your flight search to find flights from St. Louis to Brussels 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 2,991,349 searches. Data last updated April 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$581 - $1,344

Route

Depart

Return

Price

Lambert-St LouisBrussels Bruxelles-National

STL - BRU

STLBRU

Lambert-St Louis

Tue 10/8

2 stops20h 29m

Brussels Bruxelles-National

Tue 10/22

2 stops20h 05m

$581

Lambert-St LouisBrussels Bruxelles-National

STL - BRU

STLBRU

Lambert-St Louis

Wed 8/21

2 stops22h 45m

Brussels Bruxelles-National

Wed 8/28

2 stops20h 09m

$788

Lambert-St LouisBrussels Bruxelles-National

STL - BRU

STLBRU

Lambert-St Louis

Wed 8/21

1 stop11h 20m

Brussels Bruxelles-National

Wed 8/28

2 stops31h 07m

$813

Lambert-St LouisBrussels Bruxelles-National

STL - BRU

STLBRU

Lambert-St Louis

Wed 8/21

1 stop11h 20m

Brussels Bruxelles-National

Wed 8/28

1 stop18h 05m

$825

Lambert-St LouisBrussels Bruxelles-National

STL - BRU

STLBRU

Lambert-St Louis

Tue 10/8

1 stop11h 20m

Brussels Bruxelles-National

Tue 10/22

2 stops31h 07m

$943

Lambert-St LouisBrussels Bruxelles-National

STL - BRU

STLBRU

Lambert-St Louis

Tue 10/8

1 stop11h 20m

Brussels Bruxelles-National

Tue 10/22

1 stop18h 05m

$955

Lambert-St LouisBrussels Bruxelles-National

STL - BRU

STLBRU

Lambert-St Louis

Mon 7/8

2 stops13h 58m

Brussels Bruxelles-National

Tue 7/16

2 stops17h 54m

$1,026

Lambert-St LouisBrussels Bruxelles-National

STL - BRU

STLBRU

Lambert-St Louis

Mon 5/27

2 stops18h 52m

Brussels Bruxelles-National

Mon 6/3

2 stops27h 17m

$1,196

Lambert-St LouisBrussels Bruxelles-National

STL - BRU

STLBRU

Lambert-St Louis

Sun 7/7

2 stops15h 20m

Brussels Bruxelles-National

Mon 7/22

2 stops25h 55m

$1,344

Flights are sorted by cheapest first

Deals found on 4/27

When is the cheapest time to fly from St. Louis to Brussels?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Brussels. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Brussels flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Brussels by month

Plan your trip from St. Louis to Brussels by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Brussels is currently $775 while a round-trip flight costs $941. Price data was last updated on April 21, 2024.

Currently, November is the cheapest month in which you can book a flight from St. Louis to Brussels (average of $590). Flying from St. Louis to Brussels in June is currently the most expensive (average of $1,328). 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.

January

$622

February

$639

March

$809

April

$765

May

$859

June

$1,328

July

$1,184

August

$895

September

$863

October

$724

November

$590

December

$621

Temperature and rainfall in Brussels by month

Plan your trip to Brussels by taking into account the average temperature and rainfall totals by month.

BRU

Temperature

37.4 - 62.6 °F

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. 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 Brussels. Reviews last updated April 28, 2024.
Peruse reviews from past customers who have flown with United Airlines, Air Canada and American Airlines from St. Louis to Brussels to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
11,221 reviews
Check prices

Food

6.7

Crew

8.1

Entertainment

7.1

Comfort

7.2

Overall

7.4

Boarding

7.7

Reviews

1 / 10

A lot of delays to get to Edmonton as well. I am sure they couldn't be helped, but the passengers were left wondering what was happening for a while.

United Airlines
7.4
Good
11,221 reviews
United Airlines
7.4
Good
11,221 reviews
Check prices

Food

6.7

Crew

8.1

Entertainment

7.1

Comfort

7.2

Overall

7.4

Boarding

7.7

Reviews

1 / 10

A lot of delays to get to Edmonton as well. I am sure they couldn't be helped, but the passengers were left wondering what was happening for a while.

American Airlines
7.3
Good
14,844 reviews
United Airlines
7.4
Good
11,221 reviews
Check prices

Food

6.7

Crew

8.1

Entertainment

7.1

Comfort

7.2

Overall

7.4

Boarding

7.7

Reviews

1 / 10

A lot of delays to get to Edmonton as well. I am sure they couldn't be helped, but the passengers were left wondering what was happening for a while.

Air Canada
7.0
Good
6,875 reviews
United Airlines
7.4
Good
11,221 reviews
Check prices

Food

6.7

Crew

8.1

Entertainment

7.1

Comfort

7.2

Overall

7.4

Boarding

7.7

Reviews

1 / 10

A lot of delays to get to Edmonton as well. I am sure they couldn't be helped, but the passengers were left wondering what was happening for a while.

Lufthansa
7.0
Good
7,738 reviews
United Airlines
7.4
Good
11,221 reviews
Check prices

Food

6.7

Crew

8.1

Entertainment

7.1

Comfort

7.2

Overall

7.4

Boarding

7.7

Reviews

1 / 10

A lot of delays to get to Edmonton as well. I am sure they couldn't be helped, but the passengers were left wondering what was happening for a while.

British Airways
6.8
Okay
6,896 reviews
United Airlines
7.4
Good
11,221 reviews
Check prices

Food

6.7

Crew

8.1

Entertainment

7.1

Comfort

7.2

Overall

7.4

Boarding

7.7

Reviews

1 / 10

A lot of delays to get to Edmonton as well. I am sure they couldn't be helped, but the passengers were left wondering what was happening for a while.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Brussels. 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?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Brussels. On average, Lambert-St Louis has 0 outbound flights to Brussels per day from 4 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • Can I find flights from St. Louis to Brussels for under $600 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Brussels for under $600. The cheapest flight booked recently is on Multiple Airlines for just $581, but on average you can expect to pay $1,049.

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

    Currently priced at $813, United Airlines will fly you from St. Louis to Brussels and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and American Airlines - these airlines can fly you to your destination from $825 and $1,026, respectively. These flights start at 32% lower than the current average price 3 months from now.

  • What are the most popular airlines that fly from St. Louis to Brussels?

    Consider Air Canada, British Airways or Delta when booking your flight. These represent the most popular airlines when flying from St. Louis to Brussels.

  • What does STL to BRU mean?

    Lambert-St Louis Airport is STL and Brussels Bruxelles-National Airport is BRU. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Ready for more IATA code knowledge? These are related airports for your current travel destination: Charleroi Brussels Airport (CRL), Antwerp Deurne Airport (ANR), Ostende-Bruges Airport (OST), Liège Bierset Airport (LGG).

  • Can I find deals for flights from St. Louis to Brussels that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Brussels flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Brussels with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Brussels flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from St. Louis to Brussels?

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

  • Can I find deals for business class flights from St. Louis to Brussels?

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

  • Can I find deals for flights from St. Louis to Brussels that allow pets onboard?

    Many airlines flying from St. Louis to Brussels offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Brussels?

    Yes, you can often find last-minute deals on St. Louis to Brussels flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Brussels flight deals updated?

    The St. Louis to Brussels flight deals you see on this page were last updated on 4/27.

See more FAQs

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Alternative routes for St. Louis to Brussels
See prices for flight routes from nearby airports that may be better suited for you.

Springfield to Bruxelles-National flights
St. Louis to Bruxelles-National flights
Kansas City to Bruxelles-National flights
St. Louis to Charleroi Brussels flights

Top 4 airlines flying from St. Louis to Brussels

Discover the top 4 airlines that operate flights from St. Louis to Brussels. 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 2,991,349 searches. Data last updated April 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$604Average$604FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapest$696Average$1,731FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$727Average$1,126FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$856Average$1,162FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
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Search flights from St. Louis to Brussels by cabin class

Find flights from St. Louis to Brussels, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Brussels?

Cheapflights makes it easy to find St. Louis to Brussels flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Brussels?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Brussels from St. Louis.

Can Cheapflights find flights from St. Louis to Brussels with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from St. Louis to Brussels flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from St. Louis to Brussels become cheaper?

Yes! Start tracking prices for St. Louis to Brussels flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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