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$768+ Cheap flights from St. Louis (STL) to Brussels

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BRU
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
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 January 30, 2025.

Round-trip from

$915
(Cheapflightsfares)

Popular in

June

Cheapest in

February

Average price

$1,091
From Lambert-St Louis to Brussels
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($301 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
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Find flight deals from St. Louis to Brussels

Cheapest flights from St. Louis to Brussels
Explore the most affordable flight options available from St. Louis to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This FlightHub deal was found by Cheapflights users on 1/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/111:04 amSTL - BRU
2 stops22h 51mScandinavian Airlines
Mon 2/310:30 amBRU - STL
2 stops20h 06mScandinavian Airlines
Deal found 1/30$768
This Cheapflightsfares deal was found by Cheapflights users on 1/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/206:00 amSTL - BRU
2 stops21h 35mAer Lingus
Thu 4/310:20 amBRU - STL
2 stops18h 58mAer Lingus
Deal found 1/30$915
This United deal was found by Cheapflights users on 1/30. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/208:25 amSTL - BRU
2 stops19h 25mUnited Airlines
Thu 4/312:00 pmBRU - STL
3 stops34h 47mUnited Airlines
Deal found 1/30$1,016
This KAYAK deal was found by Cheapflights users on 1/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2012:05 pmSTL - BRU
1 stop14h 00mLufthansa
Thu 4/35:30 pmBRU - STL
1 stop27h 00mLufthansa
Deal found 1/30$1,065
This Mytrip deal was found by Cheapflights users on 1/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/112:15 pmSTL - BRU
3 stops24h 35mMultiple Airlines
Mon 2/311:50 amBRU - STL
3 stops33h 53mMultiple Airlines
Deal found 1/30$1,420
This oojo deal was found by Cheapflights users on 1/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/313:40 pmSTL - BRU
2 stops35h 30mTurkish Airlines
Sat 4/52:25 pmBRU - STL
2 stops38h 23mTurkish Airlines
Deal found 1/29$1,459
This Gotogate deal was found by Cheapflights users on 1/30. 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.
Tue 7/18:00 amSTL - BRU
2 stops17h 05mAir Canada
Tue 7/1510:00 amBRU - STL
2 stops35h 18mAir Canada
Deal found 1/30$1,462
This Gurufare deal was found by Cheapflights users on 1/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/311:12 pmSTL - BRU
1 stop12h 48mAustrian Airlines
Sat 4/56:50 amBRU - STL
2 stops17h 33mAustrian Airlines
Deal found 1/29$1,669

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 2,558,603 searches. Data last updated January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Thu 3/20

6:00 am-9:35 am

2 stops21h 35m

Brussels Bruxelles-National

Thu 4/3

10:20 am-10:18 pm

2 stops18h 58m

$915

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Thu 3/20

8:25 am-9:50 am

2 stops19h 25m

Brussels Bruxelles-National

Thu 4/3

12:00 pm-3:47 pm

3 stops34h 47m

$1,016

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Thu 3/20

12:05 pm-8:05 am

1 stop14h 00m

Brussels Bruxelles-National

Thu 4/3

5:30 pm-1:30 pm

1 stop27h 00m

$1,065

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Wed 7/9

1:30 pm-1:50 pm

2 stops17h 20m

Brussels Bruxelles-National

Wed 7/30

8:30 pm-8:47 pm

2 stops31h 17m

$1,278

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Mon 3/31

3:40 pm-10:10 am

2 stops35h 30m

Brussels Bruxelles-National

Sat 4/5

2:25 pm-9:48 pm

2 stops38h 23m

$1,459

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Tue 7/1

8:00 am-8:05 am

2 stops17h 05m

Brussels Bruxelles-National

Tue 7/15

10:00 am-2:18 pm

2 stops35h 18m

$1,462

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Tue 7/1

8:00 am-3:05 pm

3 stops24h 05m

Brussels Bruxelles-National

Tue 7/15

8:35 pm-1:30 pm

2 stops23h 55m

$1,596

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Mon 3/31

1:12 pm-9:00 am

1 stop12h 48m

Brussels Bruxelles-National

Sat 4/5

6:50 am-5:23 pm

2 stops17h 33m

$1,669

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Fri 7/11

1:27 pm-12:35 pm

2 stops16h 08m

$2,559

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Best time to book a flight from St. Louis to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels 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.

Travel insights for flights from St. Louis to Brussels

Get recent, data-driven insights about flights from St. Louis to Brussels including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Brussels?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Brussels (average of $614). Flying from St. Louis to Brussels in June is currently the most expensive (average of $1,146). 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?

Find hourly flight availability from St. Louis to Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 30, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 32% on flights from St. Louis to Brussels by exploring options for tickets in the afternoon.

Rainfall in Brussels by month

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

In terms of precipitation, rainfall in Brussels 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 when rainfall is around 1.6 in.

Temperature in Brussels by month

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

If weather is an important factor for your trip to Brussels, 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).

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 January 30, 2025.
Austrian Airlines
7.5
Good
786 reviews

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Crew

8.1

Overall

7.5

Food

6.7

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Austrian Airlines
7.5
Good
786 reviews
Austrian Airlines
7.5
Good
786 reviews

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Crew

8.1

Overall

7.5

Food

6.7

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

United Airlines
7.4
Good
8,906 reviews
Austrian Airlines
7.5
Good
786 reviews

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Crew

8.1

Overall

7.5

Food

6.7

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Turkish Airlines
7.3
Good
3,903 reviews
Austrian Airlines
7.5
Good
786 reviews

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Crew

8.1

Overall

7.5

Food

6.7

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Scandinavian Airlines
7.3
Good
1,315 reviews
Austrian Airlines
7.5
Good
786 reviews

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Crew

8.1

Overall

7.5

Food

6.7

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Aer Lingus
7.1
Good
1,077 reviews
Austrian Airlines
7.5
Good
786 reviews

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Crew

8.1

Overall

7.5

Food

6.7

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

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 1 airline. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    Currently priced at $915, Aer Lingus will fly you from St. Louis to Brussels and back. In addition to Aer Lingus, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Lufthansa - these airlines can fly you to your destination from $1,016 and $1,065, respectively. These flights start at 13% lower than the current average price 3 months from now.

  • 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.

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

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Brussels (average of $614). Flying from St. Louis to Brussels in June is currently the most expensive (average of $1,146). 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

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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.
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St. Louis to Bruxelles-National flights
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St. Louis to Charleroi Brussels flights

Top airline flying from St. Louis to Brussels

Discover the top airline 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 2,558,603 searches. Data last updated January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$578Average$1,082FlexibilityNo cancel feeOn-time69%
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