BRU - STL

$626 Find Cheap Flights from Brussels to St. Louis

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Brussels to St. Louis departing on 12/25. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brussels to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brussels to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$626
Typical prices: $649-$912
Lufthansa
Thu 12/25Tue 12/30
BRU - STL • 2 stops
Cheapest one-way
$1,241
Lufthansa
Wed 4/22
BRU - STL • 1 stop
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Brussels to St. Louis (BRU-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Brussels to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Brussels to St. Louis

Thu, Dec 25 - Tue, Dec 30
Lufthansa Logo
7:00 am - 4:27 pmBRU-STL
16h 27m2 stops
Lufthansa Logo
11:05 am - 8:55 amSTL-BRU
14h 50m1 stop
$626Lufthansa
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Thu, Dec 25 - Tue, Dec 30
Lufthansa Logo
7:00 am - 4:27 pmBRU-STL
16h 27m2 stops
Lufthansa Logo
11:05 am - 10:10 amSTL-BRU
16h 05m2 stops
$628Lufthansa
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Fri, Apr 24 - Sat, May 2
Lufthansa Logo
7:00 am - 1:30 pmBRU-STL
13h 30m1 stop
Lufthansa Logo
3:15 pm - 9:00 amSTL-BRU
10h 45m1 stop
$637Lufthansa
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Fri, Apr 24 - Sun, May 3
Multiple Airlines Logo
12:45 pm - 3:24 pmBRU-STL
33h 39m2 stops
Multiple Airlines Logo
1:30 pm - 1:15 pmSTL-BRU
16h 45m2 stops
$641Multiple Airlines
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Fri, Apr 24 - Fri, May 1
Multiple Airlines Logo
7:00 am - 1:30 pmBRU-STL
13h 30m1 stop
Multiple Airlines Logo
1:30 pm - 12:45 pmSTL-BRU
16h 15m2 stops
$642Multiple Airlines
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Fri, Apr 24 - Sat, May 2
KLM Logo
6:20 am - 3:58 pmBRU-STL
16h 38m2 stops
KLM Logo
5:00 pm - 8:40 amSTL-BRU
32h 40m1 stop
$645KLM
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Thu, Jan 8 - Mon, Jan 12
Lufthansa Logo
11:15 am - 11:59 pmBRU-STL
19h 44m1 stop
Lufthansa Logo
12:44 pm - 7:15 amSTL-BRU
11h 31m1 stop
$650Lufthansa
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Fri, Mar 6 - Fri, Mar 13
United Airlines Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
United Airlines Logo
5:00 am - 7:55 amSTL-BRU
20h 55m1 stop
$651United Airlines
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Wed, Feb 4 - Sun, Feb 8
British Airways Logo
11:50 am - 9:15 pmBRU-STL
16h 25m2 stops
British Airways Logo
1:35 pm - 4:40 pmSTL-BRU
20h 05m2 stops
$652British Airways
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Thu, Jan 8 - Mon, Jan 12
Lufthansa Logo
11:15 am - 11:59 pmBRU-STL
19h 44m1 stop
Lufthansa Logo
6:40 pm - 7:55 pmSTL-BRU
18h 15m2 stops
$653Lufthansa
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Booking Insights

KAYAK's insights & trends for Brussels to St. Louis flights

Get data-powered insights and trends into flights from Brussels to St. Louis to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Brussels Bruxelles-National Airport to St. Louis?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Brussels Bruxelles-National Airport to St. Louis departing in December.

What’s the cheapest day of the week to fly from Brussels to St. Louis?

The average price of all round-trip flights from Brussels Bruxelles-National Airport to St. Louis clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to St. Louis on a Friday and more expensive on a Saturday. On your return trip to Brussels, you should consider flying back on a Friday, and avoid Mondays for better deals.

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Good to know

Low seasonJune
Cheapest flight$626
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Brussels to St. Louis

When to book flights from Brussels to St. Louis

Are your dates flexible? Find out the best times to travel from Brussels to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Brussels to St. Louis flights

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

    In the last 3 days, the lowest price for a flight from Brussels Bruxelles-National Airport to St. Louis was $1,241 for a one-way ticket and $626 for a round-trip.

  • Do I need a passport to fly between Brussels and St. Louis?

    A passport is required to fly from Brussels to St. Louis.

  • Which aircraft models fly most regularly from Brussels to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Brussels to St. Louis?

    Star Alliance is the only airline alliance operating flights between Brussels and St. Louis.

  • How does KAYAK find such low prices on flights from Brussels to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Brussels to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Brussels to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Brussels is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Brussels to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Brussels with another airline. Booking your flights between Brussels and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Brussels to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Brussels up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Brussels to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Brussels to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Brussels to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9044 reviews
7.7Boarding
6.6Food
7.1Entertainment
7.3Comfort
8.1Crew
Airline reviews

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

8.0 ExcellentTommy, Nov 2025YYZ - EWR
Read more United Airlines reviews

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

We boarded late. The crew at the airport was dismissive. The seat cushion on the plane was uncomfortable.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

United has come a long way, it’s been a fantastic experience traveling with them.

Even though we were delayed, we were able to make our connection

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Great crew, excellent landing, good food. Over all great experience. Thank you!

Older aircraft, no meal, only food was for purchase. Not impressed United.

Everything you need to know for your flight from Brussels to St. Louis

Information on your arrival and departure airports

Brussels (BRU)
St. Louis (STL)