$380+ Cheap flights from St. Louis (STL) to Belgium
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BRU
May 8 — May 151
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Belgium with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
Last-minute
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Cheapest flights from St. Louis to BelgiumExplore the most affordable flight options available from St. Louis to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 8, 2026.
Explore the most affordable flight options available from St. Louis to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 8, 2026.
This FlightHub deal was found by Cheapflights users on 4/4. 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 9/191:30 pm
STL
- BRU
2 stops26h 30m
Scandinavian Airlines
Wed 9/237:10 pm
BRU
- STL
2 stops35h 27m
Scandinavian Airlines
Deal found 4/4![Scandinavian Airlines logo]()
$856
This Cheapflightsfares deal was found by Cheapflights users on 4/5. 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 8/201:18 pm
STL
- BRU
2 stops16h 52m
Lufthansa
Wed 12/97:00 am
BRU
- STL
1 stop13h 55m
Lufthansa
Deal found 4/5![Lufthansa logo]()
$869
This KAYAK deal was found by Cheapflights users on 4/5. 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.
Wed 9/309:35 pm
STL
- BRU
1 stop29h 20m
British Airways
Mon 10/58:50 pm
BRU
- STL
1 stop29h 40m
British Airways
Deal found 4/5![British Airways logo]()
$878
This Expedia deal was found by Cheapflights users on 4/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:33 pm
STL
- BRU
2 stops17h 37m
British Airways
Wed 12/911:50 am
BRU
- STL
2 stops19h 08m
British Airways
Deal found 4/5![British Airways logo]()
$880
This Scandinavian Airlines deal was found by Cheapflights users on 4/4. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/161:30 pm
STL
- BRU
2 stops23h 20m
Scandinavian Airlines
Fri 11/2010:20 am
BRU
- STL
2 stops20h 19m
Scandinavian Airlines
Deal found 4/4![Scandinavian Airlines logo]()
$890
This Cheapflightsfares deal was found by Cheapflights users on 4/4. 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.
Tue 4/2111:37 am
STL
- BRU
2 stops21h 38m
Lufthansa
Wed 4/298:30 am
BRU
- STL
1 stop11h 55m
Lufthansa
Deal found 4/4![Lufthansa logo]()
$906
This Mytrip deal was found by Cheapflights users on 4/6. 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.
Fri 4/103:30 pm
STL
- CRL
2 stops24h 05m
Multiple Airlines
Sun 4/126:25 pm
CRL
- STL
3 stops28h 23m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$2,749
Best flights from St. Louis to BelgiumDiscover carefully curated flight deals from St. Louis to Belgium that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 8, 2026.
Discover carefully curated flight deals from St. Louis to Belgium that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 8, 2026.
This oojo deal was found by Cheapflights users on 4/7. 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.
Wed 9/309:35 pm
STL
- BRU
1 stop10h 30m
British Airways
Mon 10/58:50 pm
BRU
- STL
1 stop29h 40m
British Airways
Deal found 4/7![British Airways logo]()
$883
This United Airlines deal was found by Cheapflights users on 4/5. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:00 am
STL
- BRU
1 stop21h 00m
United Airlines
Wed 12/97:00 am
BRU
- STL
1 stop13h 55m
United Airlines
Deal found 4/5![United Airlines logo]()
$917
This Finnair deal was found by Cheapflights users on 4/6. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:06 am
STL
- BRU
2 stops33h 29m
Multiple Airlines
Mon 10/57:05 pm
BRU
- STL
2 stops31h 41m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$920
This Delta deal was found by Cheapflights users on 4/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:05 pm
STL
- BRU
1 stop29h 35m
Delta
Sun 5/249:45 am
BRU
- STL
1 stop18h 53m
Delta
Deal found 4/5![Delta logo]()
$1,060
This KLM deal was found by Cheapflights users on 4/3. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2010:51 am
STL
- BRU
1 stop13h 49m
KLM
Wed 8/59:45 am
BRU
- STL
1 stop21h 08m
KLM
Deal found 4/3![KLM logo]()
$1,136
This United Airlines deal was found by Cheapflights users on 4/4. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:15 pm
STL
- BRU
1 stop10h 45m
United Airlines
Wed 4/298:30 am
BRU
- STL
1 stop11h 55m
United Airlines
Deal found 4/4![United Airlines logo]()
$957
This United Airlines deal was found by Cheapflights users on 4/5. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:30 am
STL
- BRU
1 stop19h 30m
United Airlines
Sun 5/249:55 am
BRU
- STL
1 stop17h 30m
United Airlines
Deal found 4/5![United Airlines logo]()
$1,095
This United Airlines deal was found by Cheapflights users on 4/4. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1211:25 am
STL
- BRU
1 stop14h 35m
United Airlines
Fri 6/1910:15 am
BRU
- STL
1 stop12h 31m
United Airlines
Deal found 4/4![United Airlines logo]()
$1,236
This deal was found by Cheapflights users on 4/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/201:13 pm
STL
- BRU
1 stop12h 47m
United Airlines
Wed 8/510:15 am
BRU
- STL
1 stop12h 31m
United Airlines
Deal found 4/3![United Airlines logo]()
$1,311
Last-minute flights from St. Louis to BelgiumDiscover last-minute flight deals from St. Louis to Belgium. Data last updated April 8, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Belgium. Data last updated April 8, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 4/6. 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.
Fri 4/103:30 pm
STL
- CRL
2 stops24h 05m
Multiple Airlines
Sun 4/126:25 pm
CRL
- STL
3 stops28h 23m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$2,749
This Cheapflightsfares deal was found by Cheapflights users on 4/4. 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.
Tue 4/2111:37 am
STL
- BRU
2 stops21h 38m
Lufthansa
Wed 4/298:30 am
BRU
- STL
1 stop11h 55m
Lufthansa
Deal found 4/4![Lufthansa logo]()
$906
This Cheapflightsfares deal was found by Cheapflights users on 4/7. 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.
Tue 4/219:35 pm
STL
- BRU
1 stop15h 50m
British Airways
Wed 4/2911:00 am
BRU
- STL
1 stop15h 30m
British Airways
Deal found 4/7![British Airways logo]()
$940
This United Airlines deal was found by Cheapflights users on 4/5. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2110:00 am
STL
- BRU
1 stop16h 00m
United Airlines
Tue 4/289:40 am
BRU
- STL
2 stops32h 05m
United Airlines
Deal found 4/5![United Airlines logo]()
$945
This United Airlines deal was found by Cheapflights users on 4/4. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:15 pm
STL
- BRU
1 stop10h 45m
United Airlines
Wed 4/298:30 am
BRU
- STL
1 stop11h 55m
United Airlines
Deal found 4/4![United Airlines logo]()
$957
This Air Canada deal was found by Cheapflights users on 4/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/177:05 am
STL
- BRU
1 stop17h 45m
Air Canada
Sun 5/249:55 am
BRU
- STL
2 stops17h 14m
Air Canada
Deal found 4/5![Air Canada logo]()
$981
This United Airlines deal was found by Cheapflights users on 4/3. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:05 am
STL
- BRU
1 stop17h 45m
United Airlines
Mon 5/259:40 am
BRU
- STL
2 stops33h 31m
United Airlines
Deal found 4/3![United Airlines logo]()
$965
This Air Canada deal was found by Cheapflights users on 4/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:05 am
STL
- BRU
2 stops17h 05m
Air Canada
Sun 5/249:55 am
BRU
- STL
1 stop17h 30m
Air Canada
Deal found 4/5![Air Canada logo]()
$976
One-way flights from St. Louis to BelgiumSearch for one-way flight options from St. Louis to Belgium. Find affordable one-way fares based on user searches. Data last updated April 8, 2026.
Search for one-way flight options from St. Louis to Belgium. Find affordable one-way fares based on user searches. Data last updated April 8, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/4. 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.
Sun 9/209:40 pm
STL
- BRU
1 stop15h 20m
British Airways
Deal found 4/4![British Airways logo]()
$380
This oojo deal was found by Cheapflights users on 4/6. 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 8/39:39 am
STL
- BRU
2 stops21h 46m
British Airways
Deal found 4/6![British Airways logo]()
$382
This oojo deal was found by Cheapflights users on 4/5. 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.
Tue 8/189:35 pm
STL
- BRU
1 stop29h 20m
British Airways
Deal found 4/5![British Airways logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:30 pm
STL
- CRL
2 stops37h 20m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$401
This Justfly.com deal was found by Cheapflights users on 4/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:27 pm
STL
- BRU
2 stops14h 13m
Aer Lingus
Deal found 4/5![Aer Lingus logo]()
$415
This Booking.com deal was found by Cheapflights users on 4/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:07 pm
STL
- BRU
2 stops35h 03m
British Airways
Deal found 4/4![British Airways logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 4/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/203:30 pm
STL
- CRL
2 stops37h 45m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$422
This oojo deal was found by Cheapflights users on 4/5. 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.
Thu 8/203:33 pm
STL
- BRU
2 stops17h 37m
British Airways
Deal found 4/5![British Airways logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 4/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/203:30 pm
STL
- BRU
3 stops35h 15m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$466
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:30 pm
STL
- BRU
3 stops33h 50m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$470
This Mytrip deal was found by Cheapflights users on 4/6. 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.
Thu 8/202:40 pm
STL
- CRL
2 stops17h 50m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$507
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:27 pm
STL
- BRU
3 stops56h 43m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$533
Find flight deals from St. Louis to Belgium
Keep the following information in mind while searching for St. Louis to Belgium flight deals. Data was last updated April 8, 2026.
Round-trip from | $856 (FlightHub) |
|---|---|
One-way from | $380 (Cheapflightsfares) |
Popular in | December |
Cheapest in | February |
Average price | $931 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Belgium 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 April 8, 2026.
Use the filters below to find and compare flights from St. Louis to Belgium that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Wed 9/30
9:35 pm-3:05 pm
1 stop10h 30m
Brussels Bruxelles-National
Mon 10/5
8:50 pm-7:30 pm
1 stop29h 40m
$883
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Thu 8/20
5:00 am-9:00 am
1 stop21h 00m
Brussels Bruxelles-National
Wed 12/9
7:00 am-1:55 pm
1 stop13h 55m
$917
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Wed 9/30
6:06 am-10:35 pm
2 stops33h 29m
Brussels Bruxelles-National
Mon 10/5
7:05 pm-7:46 pm
2 stops31h 41m
$920
Quickest round-trip
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Tue 4/21
3:15 pm-9:00 am
1 stop10h 45m
Brussels Bruxelles-National
Wed 4/29
8:30 am-1:25 pm
1 stop11h 55m
$957
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Sat 5/16
7:05 pm-7:40 am
1 stop29h 35m
Brussels Bruxelles-National
Sun 5/24
9:45 am-9:38 pm
1 stop18h 53m
$1,060
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Tue 5/19
6:30 am-9:00 am
1 stop19h 30m
Brussels Bruxelles-National
Sun 5/24
9:55 am-8:25 pm
1 stop17h 30m
$1,095
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Mon 7/20
10:51 am-7:40 am
1 stop13h 49m
Brussels Bruxelles-National
Wed 8/5
9:45 am-11:53 pm
1 stop21h 08m
$1,136
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Fri 6/12
11:25 am-9:00 am
1 stop14h 35m
Brussels Bruxelles-National
Fri 6/19
10:15 am-3:46 pm
1 stop12h 31m
$1,236
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Mon 7/20
1:13 pm-9:00 am
1 stop12h 47m
Brussels Bruxelles-National
Wed 8/5
10:15 am-3:46 pm
1 stop12h 31m
$1,311
Cheapest one-way
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Tue 8/18
7:01 am-3:15 pm
2 stops25h 14m
$382
Showing 1-10 of 22 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Belgium
Have a flexible travel schedule? Discover the best time to fly to Belgium from St. Louis with our price prediction graph.
STL-BRU
STL-CRL
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.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Belgium
STL-BE0
STL-BRU
STL-CRL
What is the cheapest month to book a flight from St. Louis to Belgium?
Currently, April is the cheapest month in which you can book a flight from St. Louis to Belgium (average of $462). Flying from St. Louis to Belgium in June is currently the most expensive (average of $1,164). 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.
Reviews of airlines servicing Belgium
Get insights into the airlines that provide service to Belgium. 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 Belgium. Reviews last updated April 8, 2026.
Read reviews from past customers who have flown United Airlines and Lufthansa from St. Louis to Belgium. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Comfort
7.3
Food
6.6
Boarding
7.7
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Comfort
7.3
Food
6.6
Boarding
7.7
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Comfort
7.3
Food
6.6
Boarding
7.7
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Belgium. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
Complete your trip to Belgium by adding a car rental and/or hotel reservation to your travel itinerary.
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St. Louis and Belgium flights
Browse other St. Louis and Belgium flight options. Last updated on April 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Belgium flights
Consider these flights traveling from St. Louis to Belgium.
Top 2 airlines flying from St. Louis to Belgium
Discover the top 2 airlines that operate flights from St. Louis to Belgium. 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 April 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$441 | Average$2,200 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$606 | Average$780 | FlexibilityNo cancel fee | On-time69% |