Find cheap flights from St. Louis to Brussels

Find cheap flights from St. Louis to Brussels

Round-trip
Economy
St. Louis (STL)
Brussels Bruxelles-National
Mon 1/18
Mon 1/25
Any month
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Good to know

Low season

February Best time to beat the crowds with an average 31% drop in price.

High season

June Most popular time to fly with an average 24% increase in price.

Average price round-trip

$1,069 (avg. price over the last 2 weeks)

Good deal round-trip

$781 or less

Good deal one-way

$695 or less

When to book flights from St. Louis to Brussels

Estimated round-trip price
Average price per month

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $695 or less one-way and $781 or less round-trip.
  • High season is considered to be May, June and July. The cheapest month to fly is February.

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Top airlines flying Lambert-St Louis to Brussels

Scores according to KAYAK customer reviews

7.9
Lufthansa
Overall score based on 27,771 reviews
8.0
Boarding
7.8
Comfort
8.4
Crew
7.7
Entertainment
7.6
Food
Airline reviews

Pros: "Nothing!"
Cons: "Racists bastards!"

Pros: "Nothing"
Cons: "Everything."

Cons: "Security in Frankfurt - long lines"

Cons: "Improve quality of on board announcements."

Cons: "There were a couple of flight delays. Other that that, I love Lufthansa."

Pros: "Very smooth flight. Everything was perfect."

Cons: "Lufthansa changed my flight last minute but was sending me updates for the old booking- it made no sense!!! Never again!"

Pros: "Good crew, comfort and timing"
Cons: "I got what I expected"

Pros: "Boarding was quick and good"

Pros: "The crew was okay. The seat was good."
Cons: "Better service but the flight was great."

Pros: "Smooth. No turbulence. On time."

Pros: "crew"
Cons: "Frankfurt Lufthansa ground staff gave us bad advise and sent us on a 2 mile walk for nothing."

Pros: "for the first time ever, my kid ate the airplane food, and it was because it was good. the service was really good and the staff outstanding."
Cons: "Te cabin pressure gave us headache. always happens with the A380 though."

Pros: "Food was good & they served a full meal!"
Cons: "Crew appeared annoyed with everyone. No entertainment provided."

Pros: "it’s wasnt a full flight, so that was nice"
Cons: "bus to the airplane was too warm and had to wait 10 minutes before actually letting us off"

Cons: "Flight was 45 minutes late arriving, causing me to miss my connection to Lufthansa and forcing reroute of whole trip."

Pros: "Aircraft, cleanliness, crew, food"

Pros: "airplane comfortable"
Cons: "luggages were split and still lost can not find at the mean time"

Cons: "Seats are small and cramped. Food was tasteless. Entertainment equipment did not work well, slow and kept locking up."

Pros: "I always had a great experience with Lufthansa."

Cons: "Delay of 45 minutes made me almost miss my connecting flight."

Cons: "Boarding was a mess. Waiting for long time in a crowded bus to NORAD the plane then rushing out of the bus to Nita the plane with no lines and having to wait for the crowds outside the lane in a freezing temperature. Furthermore, there was no entertainment on the plane and the food was horrible. Add to this the very cramped seat space and no carry ons in the plane (unless you speak German)"

Cons: "Rubbish boarding staff"

Pros: "They’re very polite persons"
Cons: "The way they treat people"

Pros: "Plane was clean"
Cons: "no entertainment, cramped seats"

Cons: "Munich airport should be improved far more. it took more than 20 mins to find a toilette. they should install more toilette for the travellers."

Pros: "The crew was friendly and respectful."
Cons: "I wasn’t able to get my TV device to function properly"

Pros: "They made the experience enjoyable easy and I made me feel special"

Pros: "The perfect assistance. We are very grateful, many thanks to the man who helped us in all we needed."

Pros: "Nice airport"
Cons: "Too cramped. Pay for all food and drinks. Cheesy! Sad!!"

Pros: "Was served food and drinks for a 2 hr flight between OTP and MUC. Who else does this? My mom was offered transportation assistance throughout the entire flight. Preboarding on every leg of the flight"

Pros: "This was a short flight with only a snack and no entertainment like the onboard movie selections on the longer flight."

Pros: "Ground Staff helpful. Cockpit pilots communicated effectively. Most of the cabin staff was courteous."
Cons: "The wait prior to takeoff was a concern. Flight departed one hour late. Scanner at Gate Z13 was malfunctioning. One steward from Frankfurt to Dallas was pre-judging my food choice based on how I look. Normally that would not bother me, but he kept asking if I had ordered a Vegetarian or Hindu meal several times even after I confirmed that I had requested the standard meals for all my journey. The same steward on the Dallas to Frankfurt demonstrated the same questionable behavior. Infants on the flight get very noisy and Lufthansa Staff can help by asking accompanying parents to be prepared prior to take off and landing with warm milk in the baby milk bottles which the children can ingest to equalize ear drum pressure. Unfortunately cabin crew is not using this simple technique and the children on board cry excessively with lot of pain making everyone around them very uncomfortable. This can be nerve wracking for all accompanying Lufthansa passengers near bulkhead rows. Frankfurt Main is too dependent on bus transportation causing passengers to get wet on days when rain occurs."

Pros: "Drinks and food quality acceptable Well on time Very friendly crew"
Cons: "Seats comfort could have been better"

Pros: "flight attendants were polite and there were two meal services."
Cons: "The flight was full and the seats were extremely close together with little room. When the person in front of me leaned back I had no room and it was hard to see the movie screen."

Pros: "Very smooth ride. I liked that they left water/ juice/ snacks downstairs in between meal service. The crew was super friendly, the entertainment selection was awesome too."
Cons: "My chair wouldn't stay reclined :/"

Pros: "Food, movie selection, comfort, speed of flight much better than Air Canada on the way over. Didn't lose any luggage."
Cons: "Had a little trouble getting everything set with the luggage and boarding pass. One lady wasn't very helpful but a male employee came along and straightened everything out."

Pros: "Lufthansa service"
Cons: "No entertainment"

Pros: "I liked the friendliness of the staff, the flight was good, the food was very good."
Cons: "I closed my eyes for just a few minutes two hours before landing and I missed the last meal. I was not sleeping but somehow the stewardess was going around quickly because I heard her in back of me. I thought she was headed in my direction but she had already passed me and then the drinks came around so I could not get thru to go back and ask for the "pizza". I wish the stewardesses would make a quick check up and down the isles in case someone dozed off. The first meal that I received was very good but I am glad I didn't miss it when they came around. Especially that I traveled alone. I do have to say that the comfort of the seats on the way to Europe was much better. It was a different airline."

Pros: "Food was actually pretty good, and was plentiful. Comfortable seating."
Cons: "I don't think my tv worked."

Pros: "Lufthansa is one of few airlines in Europe with pure class and excellent service. Even in economy!"

Pros: "Good service, clean airy aircraft"
Cons: "Boarding in Munich not well organized for business class passengers as it could be"

Cons: "The 24 layover in Chicago with no possible flight out. If I didn't make the rescheduled flight, I would have been at least 48 hours in the airport waiting on another flight. Because I was unfamiliar with the area and was not offered any accommodations, I didn't sleep the entire time I was in Chicago. I also had to stand in line for a very long time and by the time I was done rebooking my flight all the airport restaurants were closed. I understand there are flight cancellations, but it just would have been nice if the airport was a little more accommodating."

Pros: "Food and beverage service was excellent."
Cons: "Cabin temperature was way too hot. Leg room was too small"

Cons: "No air vents"

Pros: "Cheese sandwiches were good."
Cons: "Long delay of the flight due to weather conditions."

Cons: "Flight delayed and lost connection. 2 hours for rebooking"

Pros: "Hope to make today's flight home! Time will tell."

Pros: "Clean and comfortable aircraft."

Pros: "Staff found us two seats together. Food was good."
Cons: "Email telling us about pre airport arrival check in and seat selection."

Pros: "The crew was kind and smiling (not like the worst crew I’ve ever had Brussels Airlines)"
Cons: "The food"

Pros: "Comfortable. Good entertainment and good service. Crew was nice"
Cons: "Missed our flight from Brussels to Zurich. United said we were booked on next flight six hours later. Gave us vouchers and that was it. Went to check in and the carrier said sorry you can’t board United did not book you. The voucher just has prior info and this flight time. So we missed getting on that flight 3 total hours on the phone with United and they did nothing but put us on hold. Thank you to Brussels air who finally after many years and frustration helped us so we could leave. More than 10 hours later than we should have. Horrible experience and we lost a day of vacation and pre paid plans for the evening I will never use kayak again for international flights. As that was part of the problem per United (probably BS but won’t ever risk it again) and will never use United airlines again as their customer service and lack of caring showed that companies true colors. I hope the rest of this dream vacation is better than this nightmare was."

Pros: "We were surprised to find ourselves assigned to the bulkhead seats where we had extra legroom and great access to the restrooms."

Pros: "Very friendly cabin crew made this trip pleasant and entertaining."
Cons: "Despite plenty of empty seats, the ground personnel would not consider changing our seat assignment at the gate to allow us to sit together."

Pros: "Everything was excellent! I even got upgraded to a window seat!"

Pros: "My wife was happy"
Cons: "Fixing my own supper"

Pros: "Service was excellent"

Pros: "That I didn't have to walk to Fargo. I wasn't dragged off a plane."
Cons: "3 flights to Fargo were cancelled. I was told I would not get to Fargo until 32 hours after my original time I was suppose to land in Fargo. After spending a fair amount of time on the phone with customer service I was able to get me on a Flight to Minneapolis that did not arrive till 1:30am then had to take a rental car to drive 3.5 hours to make it to my destination. I was not compensated for any of this. My return flight from Fargo to St. Louis was also Delayed. Both from Fargo and from Chicago. I have never experienced such poor scheduling from an airline or as many delays or cancelled flights in just a few day period."

Cons: "Never on time"

Pros: "Smooth and positive communication."

Pros: "There was a good entertainment system with a lot of new options."
Cons: "My itinerary said I fly on Brussels Airlines on a specific flight number. I went to the international terminal to discover it is not there. I then asked multiple aiport staff members if they heard of Brussels Airlines and they said they did not. One person said it may be terminal 1, so I went there based on very little information and with hopes it would be there. I got to terminal 1 to discover there is no Brussels Airlines. I walked to Lufthansa because my return flight is through them, but it was not there either. At this point I have 45 min to make it through security and board, and no one can tell me where Brussels Airlines is. The good news is the flight was delayed, and I got an email from United Airlines with the flight status. This is the first time I was contacted by United and there was a completly different flight number than the itinerary. United should be more clear on the airline and terminal information for international flights!"

Pros: "no problems on flight. complimentary wine."
Cons: "seats bit tight for international flight. why do I have to pay more for more leg room"

Pros: "Great crew and flight attendants, kept us informed of everything, very helpful and prompt on all questions and requests. Movie selection was impressive. Boarding was efficient and flight even left early. Surprisingly pleasant experience in economy for a long flight."

Pros: "Flight was on time"
Cons: "One extremely tiny bathroom for the whole plain for a 4.5 hours flight. The bathroom line snaked through the plane the entire flight No complementary water or any sort of drink Seats were very uncomfortable I fly a lot and this flight was the worst by far"

Pros: "Not u til lDr momie"

Pros: "Seats felt roomy, in comparison to many other regional planes."
Cons: "Vinyl seats made my back really sweaty on a relatively short flight."

Pros: "Everything was smooth"

Pros: "not much"
Cons: "Food was awful. earplugs terrible"

Pros: "Nice food, good crew"

Pros: "Crew members were awesome and very attentive both at the airport and on board."

Pros: "smooth flight, good service"
Cons: "hold up to board family with 2 much luggage, overhead bins 2 small"

Pros: "Professional staff, landed safely, the NY skyline is gorgeous"
Cons: "Had to get on a later flight, TSA sucks as usual, I'm too tall for that plane"

Pros: "Fast"
Cons: "Small plane"

Pros: "Download the United app, it makes the flight better."
Cons: "Na"

Cons: "Flight was delayed so long I missed my connecting flight and spent 18 hours traveling rather than 8."

Pros: "Crew"
Cons: "Seating...loudness..cost of beverages..getting/storing baggage. Aesthetics"

Pros: "For the most part the ride was nice."
Cons: "Seats were so small"

Pros: "Just about everything was perfect. lots of leg room in economy plus, seat next to me stayed empty, the meals were very taste. And the crew members were extremely professional. It was just a perfect experience."

Pros: "Good selection of entertainment."

Pros: "Because of a 10 minute fix, we had to wait an additional 40 minutes for paperwork. I missed my connecting flight because of this."

Pros: "Friendly few, clean plane, and on time"
Cons: "It was way too hot on the plane. I understand it's hard to find a happy medium with people on temperature but this flight was too warm, especially with people traveling with winter wear on."

Pros: "Legroom was a bit tight."

Cons: "See above comments."

Pros: "I'm always comfortable when riding UA. The staff is professional and helpful!"

Pros: "Flight was pleasant."
Cons: "My luggage was left behind and it was an awful experience! My medication was in my luggage and could not use it which made me suffer tremendous pain and discomfort. No one got back to me to offer compensation!"

Pros: "Easy"

Pros: "Both flights left on time and arrived at least 20 minutes early. My bag arrived at the baggage claim ten minutes after I arrived, and all went very well. I'm grateful."
Cons: "All was perfect"

Cons: "we have been sitting in the cabin for over an hour while they have feuled the plain as they forgot to complete it"

Pros: "The boarding process went smoothly and was on schedule."
Cons: "Overhead compartment filled up and it was hard funding space for my bag."

Cons: "The delay. It was approximately a 2 hour delay getting to Arcata."

Cons: "EVERYTHING WAS EXCELLENT"

Pros: "Great tasting food, excellent customer service, and free wine and beer! Couldnt be happier!"

Pros: "Wifi on flight"

Pros: "New (to me) lime sparkling soda And a cookie too! Seemed to be a little more seat and leg room."
Cons: "I only wish your branded credit card did not cost$95.00 after first year."

Pros: "Rain delayed our take off but most of the time was made up. No complaints!"
Cons: "Forced to check our carry on suitcase even though there was plenty of room above the seats."

Pros: "Newer plane,"

Cons: "Late out of Stl. Missed flight out of Chicago"

Pros: "On time. Quick boarding, very efficient."
Cons: "Stewardess was a little grumpy."

Cons: "Delayed over an hour in STL, which caused me to miss my connection to Hartford. United rebooked me on Delta. I had to go from STL to Newark (United) then to Detroit to Hartford (Delta). I was in airports for over 14 hours. I was 7 1/2 hours late leaving compared to my original schedule and arrived at the hotel the next day. I had 5.5 hours of sleep for an interview that I traveled for in Hartfford. Thanks United."

Read more about Lufthansa
COVID-19 information

Safety measures for airlines flying from St. Louis to Brussels

Airlines flying from St. Louis to Brussels have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from St. Louis to Brussels

Mandatory masks

Masks required on board, masks provided on flights from St. Louis to Brussels

Social distancing seating

Middle seats unavailable to book on flights from St. Louis to Brussels

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from St. Louis to Brussels

Book cheap flights from St. Louis to Brussels

Recent round-trip flight deals

2/25
Thu
2 stops
Lufthansa
16h 55m
STL - BRU
3/7
Sun
2 stops
Lufthansa
35h 44m
BRU - STL
2/25
Thu
1 stop
Multiple Airlines
10h 30m
STL - BRU
3/7
Sun
1 stop
Multiple Airlines
14h 04m
BRU - STL
2/25
Thu
2 stops
United Airlines
17h 31m
STL - BRU
3/7
Sun
1 stop
United Airlines
12h 20m
BRU - STL
2/25
Thu
3 stops
Multiple Airlines
29h 40m
STL - BRU
3/7
Sun
2 stops
Multiple Airlines
18h 12m
BRU - STL
2/25
Thu
3 stops
Multiple Airlines
26h 36m
STL - BRU
3/7
Sun
3 stops
Multiple Airlines
20h 11m
BRU - STL
2/27
Sat
2 stops
Multiple Airlines
15h 00m
STL - BRU
3/1
Mon
2 stops
Multiple Airlines
15h 43m
BRU - STL
2/27
Sat
2 stops
Multiple Airlines
15h 00m
STL - BRU
3/1
Mon
2 stops
Multiple Airlines
19h 09m
BRU - STL
2/27
Sat
1 stop
Lufthansa
10h 30m
STL - BRU
3/1
Mon
1 stop
Lufthansa
17h 27m
BRU - STL
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