BRU - STL

$588 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 1/1. 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

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
$635
Lufthansa
Sun 11/9Sun 11/16
BRU - STL • 1 stop
Cheapest one-way
$588
Aer Lingus
Thu 1/1
BRU - STL • 2 stops
Top airlines
Lufthansa
Cheapest • from $635 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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, Nov 9 - Sun, Nov 16
Lufthansa Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
Lufthansa Logo
1:10 pm - 7:15 amSTL-BRU
11h 05m1 stop
$635Lufthansa
Find Deal
Sun, Nov 9 - Sun, Nov 16
Lufthansa Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
Lufthansa Logo
6:43 pm - 4:15 pmSTL-BRU
14h 32m2 stops
$636Lufthansa
Find Deal
Sun, Nov 23 - Tue, Dec 2
American Airlines Logo
11:20 am - 12:05 amBRU-STL
19h 45m2 stops
American Airlines Logo
2:52 pm - 1:35 pmSTL-BRU
15h 43m2 stops
$643American Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
American Airlines Logo
11:50 am - 8:24 pmBRU-STL
15h 34m2 stops
American Airlines Logo
11:34 am - 10:50 amSTL-BRU
16h 16m2 stops
$646American Airlines
Find Deal
Mon, Nov 24 - Tue, Dec 2
British Airways Logo
8:45 pm - 4:27 pmBRU-STL
26h 42m2 stops
British Airways Logo
3:43 pm - 1:35 pmSTL-BRU
14h 52m2 stops
$650British Airways
Find Deal
Fri, Nov 7 - Tue, Nov 11
Air Canada Logo
10:00 am - 10:51 amBRU-STL
31h 51m2 stops
Air Canada Logo
6:30 am - 7:50 amSTL-BRU
18h 20m2 stops
$655Air Canada
Find Deal
Sun, Nov 9 - Sun, Nov 16
British Airways Logo
11:20 am - 12:05 amBRU-STL
19h 45m2 stops
British Airways Logo
3:23 pm - 1:50 pmSTL-BRU
15h 27m2 stops
$659British Airways
Find Deal
Sun, Nov 23 - Mon, Dec 1
United Airlines Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
United Airlines Logo
6:30 am - 8:55 amSTL-BRU
19h 25m1 stop
$660United Airlines
Find Deal
Wed, Nov 26 - Tue, Dec 2
Air Canada Logo
10:00 am - 12:28 pmBRU-STL
33h 28m2 stops
Air Canada Logo
4:05 pm - 7:50 amSTL-BRU
32h 45m2 stops
$662Air Canada
Find Deal
Fri, Nov 21 - Thu, Dec 4
United Airlines Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
United Airlines Logo
6:42 pm - 8:55 amSTL-BRU
31h 13m1 stop
$666United Airlines
Find Deal
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.

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.

Good to know

Low seasonJune
Cheapest flight$588
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 15% 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 $588 for a one-way ticket and $635 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?

    oneworld, and Star Alliance are the airline alliances operating flights between Brussels and St. Louis, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Brussels to St. Louis, United Airlines or British Airways?

    The two airlines most popular with KAYAK users for flights from Brussels to St. Louis are United Airlines and British Airways. With an average price for the route of $842 and an overall rating of 7.4, United Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $732 and an overall rating of 6.7.

  • 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 airlines 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 8968 reviews
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

Boarding was organized. Plane seats comfortable and service was attentive. Food options were good.

6.0 GoodArmando, Oct 2025TPA - EWR
Read more United Airlines reviews

Boarding was organized. Plane seats comfortable and service was attentive. Food options were good.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

Excellent experience. Starting with the agent at the Premier bag drop who noticed I was very early for my scheduled flight and offered to rebook me on an earlier flight with my seat preference. She would not let me leave the counter until she knew that all of the changes and new boarding pass showed up on my United app. At the gate, the flight boarded quickly such that we departed early and the flight was smooth. We arrived 20 minutes early at ORD and I was able to be home in time for dinner. One of the best flights I've had.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

Salina to travers city was great! But the sept 24 Tranverse city was not! Traverse city to chichago was cancelled, i went to Denver & got to Salina 6 hours later!

Flight is clean and ontime. Crew is friendly. Snack can be better and the internet connection is poor

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

I am a 25+ years American Airlines member. British Airways is simply above and beyond in every customer satisfaction category.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

1. The website didn’t allow me to checkin from London as I have Bangladesh passport with US permanent resident card. This pushed me to sit with my wife in the middle of two aisle seats, terrible experience! 2. BA should allow within 24 hours to checkin with other passport holders to choose better seats. A 2nd verification of travel documents can be done at the desk about immigration status. 3. Food options were poor for vegetarian passengers, try to introduce healthy options avoiding carb-dense food ingredients.

Cabin crew lovely and accommodating and I'll always fly BA in the future

It was perfect. The service was exceptional. I would never want to cross the Atlantic in anyone else's sardine tins.

As I have said it sucked, the ticket counter to have to find and pay for another airline to get home. Now I understand this happened over the weekend but they should have someone there to talk to us instead of throwing the regular crew under the bus.

Everything excellent except for bag drop off. We started at the D area and that was so slow that it was eventually closed just as we were about to go to a station. We then went to F. We got one suitcase checked and then the screen showed that the station was no longer operable. There were long lines everywhere so we had to ask if we could butt in to the next station to finish. Again, this was the only incident, otherwise it was an excellent flying experience

Adequate to good experience. Comfort was mediocre but everything else was good..

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

Information on your arrival and departure airports

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