BRU - STL

$435 Find Cheap Flights from Brussels to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Brussels to St. Louis departing on 4/17. 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$662
Lufthansa
Sun 4/19Mon 4/27
BRU - STL • 1 stop
Cheapest one-way
$435
British Airways
Fri 4/17
BRU - STL • 2 stops
Top airlines
Lufthansa
Cheapest • from $662 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Brussels and St. Louis. You'll need at least 1 connection.
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We hope you love your trip to St. Louis!
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

Sun, Apr 19 - Mon, Apr 27
Lufthansa Logo
8:30 am - 1:25 pm
BRU
-
STL
11h 55m
1 stop
Lufthansa Logo
1:10 pm - 10:10 am
STL
-
BRU
14h 00m
2 stops
$662Lufthansa
Fri, Apr 17 - Tue, Apr 21
Multiple Airlines Logo
12:00 pm - 7:22 pm
BRU
-
STL
14h 22m
1 stop
Multiple Airlines Logo
11:37 am - 7:45 am
STL
-
BRU
13h 08m
1 stop
$667Multiple Airlines
Fri, Apr 17 - Tue, Apr 21
Multiple Airlines Logo
12:00 pm - 7:22 pm
BRU
-
STL
14h 22m
1 stop
Multiple Airlines Logo
11:37 am - 7:45 am
STL
-
BRU
13h 08m
1 stop
$668Multiple Airlines
Fri, Apr 17 - Wed, Apr 22
Lufthansa Logo
8:30 am - 3:48 pm
BRU
-
STL
14h 18m
2 stops
Lufthansa Logo
3:30 pm - 10:10 am
STL
-
BRU
11h 40m
1 stop
$669Lufthansa
Fri, Apr 17 - Tue, Apr 21
Multiple Airlines Logo
8:30 am - 3:48 pm
BRU
-
STL
14h 18m
2 stops
Multiple Airlines Logo
12:15 pm - 7:15 am
STL
-
BRU
12h 00m
1 stop
$670Multiple Airlines
Fri, Apr 17 - Tue, Apr 21
Multiple Airlines Logo
8:30 am - 3:48 pm
BRU
-
STL
14h 18m
2 stops
Multiple Airlines Logo
9:10 am - 7:10 am
STL
-
BRU
15h 00m
2 stops
$678Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Lufthansa Logo
12:00 pm - 7:22 pm
BRU
-
STL
14h 22m
1 stop
Lufthansa Logo
12:15 pm - 7:15 am
STL
-
BRU
12h 00m
1 stop
$679Lufthansa
Fri, Apr 17 - Tue, Apr 21
Multiple Airlines Logo
8:30 am - 3:48 pm
BRU
-
STL
14h 18m
2 stops
Multiple Airlines Logo
4:05 pm - 1:15 pm
STL
-
BRU
14h 10m
2 stops
$683Multiple Airlines
Thu, Mar 12 - Mon, Mar 16
Multiple Airlines Logo
10:10 am - 6:00 pm
BRU
-
STL
13h 50m
1 stop
Multiple Airlines Logo
4:05 pm - 1:15 pm
STL
-
BRU
15h 10m
2 stops
$685Multiple Airlines
Fri, Apr 17 - Tue, Apr 21
United Airlines Logo
8:30 am - 1:25 pm
BRU
-
STL
11h 55m
1 stop
United Airlines Logo
12:15 pm - 7:15 am
STL
-
BRU
12h 00m
1 stop
$689United Airlines
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.

Which airlines provide the cheapest flights from Brussels to St. Louis?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Brussels to St. Louis were found on Lufthansa ($662) and United Airlines ($689).

Find deals

Good to know

Low seasonMay
Cheapest flight$435
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 1% lower on average.
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 $435 for a one-way ticket and $662 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 9348 reviews
7.7Boarding
6.6Food
7.3Comfort
8.1Crew
7.1Entertainment
Airline reviews

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

2.0 MediocreCameron, Feb 2026
GRR - DEN
Read more United Airlines reviews

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Given I (and I’m assuming most people) have both carry in and a personal item included in their fare, I find it very unfair that on neither of my flights I was able to use the overhead for my small backpack because they were completely rammed with luggage, people personal items, jackets, hats and other items. So the only item I brought in had to be stuffed under my seat while they had their leg room and sat comfortable with all of their items in the overhead. This has to stop because I was uncomfortable on both flights when I only had one smaller item that could not be checked due to its contents (medication etc). Plenty of people could have checked theirs but chose not to and then took up the space allotment for 2 people.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

I couldn’t make my first flight due to weather delays trapping us in the town we were in. Then I had to buy a new ticket

Flight attendants had a little attitude. Food tastes no good.

Chargers didn’t work, no entertainment and we had to wait for taxiing for easily 40 minutes after arriving early. Bags were late too!

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

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)