$337+ Cheap flights from St. Louis (STL) to Belgium
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BRU
Dec 12 — Dec 191
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Belgium
Cheapest
Best
Last-minute
One-way
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 November 12, 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 November 12, 2026.
This FlightHub deal was found by Cheapflights users on 11/10. 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.
Tue 12/82:00 pm -
2 stops14h 10m
Mon 12/149:15 pm -
2 stops32h 02m
Deal found 11/10![British Airways logo]()
$796
This United Airlines deal was found by Cheapflights users on 11/11. 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.
Wed 11/188:00 am -
2 stops22h 15m
Wed 11/2510:00 am -
2 stops33h 10m
Deal found 11/11![United Airlines logo]()
$812
This Cheapflightsfares deal was found by Cheapflights users on 11/11. 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.
Wed 11/183:40 pm -
1 stop21h 40m
Wed 11/258:25 am -
1 stop12h 20m
Deal found 11/11![Lufthansa logo]()
$818
This United Airlines deal was found by Cheapflights users on 11/10. 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 12/88:02 am -
2 stops22h 13m
Mon 12/1410:10 am -
1 stop19h 49m
Deal found 11/10![United Airlines logo]()
$831
This Delta deal was found by Cheapflights users on 11/11. 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.
Tue 12/812:36 pm -
1 stop15h 24m
Mon 12/1412:55 pm -
1 stop15h 43m
Deal found 11/11![Delta logo]()
$835
This Orbitz deal was found by Cheapflights users on 11/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/84:05 pm -
2 stops14h 10m
Mon 12/146:00 pm -
2 stops52h 26m
Deal found 11/11![Multiple Airlines logo]()
$839
This Travelocity deal was found by Cheapflights users on 11/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/304:05 pm -
2 stops14h 10m
Mon 12/76:00 pm -
2 stops52h 26m
Deal found 11/9![Multiple Airlines logo]()
$840
This United Airlines deal was found by Cheapflights users on 11/9. 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 11/309:59 am -
1 stop15h 06m
Mon 12/71:45 pm -
2 stops33h 39m
Deal found 11/9![United Airlines logo]()
$853
This United Airlines deal was found by Cheapflights users on 11/8. 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 12/31:17 pm -
1 stop10h 58m
Tue 12/810:00 am -
2 stops33h 22m
Deal found 11/8![United Airlines logo]()
$865
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 November 12, 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 November 12, 2026.
This United Airlines deal was found by Cheapflights users on 11/10. 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.
Sun 2/143:30 pm -
1 stop10h 25m
Thu 2/1810:00 am -
2 stops36h 58m
Deal found 11/10![United Airlines logo]()
$727
This Expedia deal was found by Cheapflights users on 11/12. 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.
Mon 4/124:05 pm -
2 stops14h 10m
Mon 4/267:15 pm -
1 stop25h 10m
Deal found 11/12![Multiple Airlines logo]()
$749
This Delta deal was found by Cheapflights users on 11/11. 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.
Tue 12/812:36 pm -
1 stop15h 24m
Mon 12/1412:55 pm -
1 stop15h 43m
Deal found 11/11![Delta logo]()
$835
This United deal was found by Cheapflights users on 11/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/136:30 am -
2 stops17h 40m
Fri 4/239:30 am -
2 stops31h 57m
Deal found 11/12![Multiple Airlines logo]()
$750
This Delta deal was found by Cheapflights users on 11/12. 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.
Sun 1/35:13 pm -
1 stop10h 47m
Tue 1/1210:45 am -
2 stops17h 09m
Deal found 11/12![Delta logo]()
$844
This United Airlines deal was found by Cheapflights users on 11/8. 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 12/31:17 pm -
1 stop10h 58m
Tue 12/810:00 am -
2 stops33h 22m
Deal found 11/8![United Airlines logo]()
$865
This United Airlines deal was found by Cheapflights users on 11/10. 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.
Sat 2/275:05 pm -
1 stop32h 50m
Sat 3/1310:10 am -
1 stop20h 09m
Deal found 11/10![United Airlines logo]()
$881
This United Airlines deal was found by Cheapflights users on 11/9. 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 11/309:59 am -
1 stop15h 06m
Mon 12/710:10 am -
1 stop15h 06m
Deal found 11/9![United Airlines logo]()
$885
Last-minute flights from St. Louis to BelgiumDiscover last-minute flight deals from St. Louis to Belgium. Data last updated November 12, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Belgium. Data last updated November 12, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 11/11. 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.
Wed 11/188:00 am -
2 stops22h 15m
Wed 11/2510:00 am -
2 stops33h 10m
Deal found 11/11![United Airlines logo]()
$812
This Cheapflightsfares deal was found by Cheapflights users on 11/11. 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.
Wed 11/183:40 pm -
1 stop21h 40m
Wed 11/258:25 am -
1 stop12h 20m
Deal found 11/11![Lufthansa logo]()
$818
This Travelocity deal was found by Cheapflights users on 11/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/304:05 pm -
2 stops14h 10m
Mon 12/76:00 pm -
2 stops52h 26m
Deal found 11/9![Multiple Airlines logo]()
$840
This United Airlines deal was found by Cheapflights users on 11/9. 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 11/309:59 am -
1 stop15h 06m
Mon 12/71:45 pm -
2 stops33h 39m
Deal found 11/9![United Airlines logo]()
$853
This United Airlines deal was found by Cheapflights users on 11/8. 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 12/31:17 pm -
1 stop10h 58m
Tue 12/810:00 am -
2 stops33h 22m
Deal found 11/8![United Airlines logo]()
$865
This FlightHub deal was found by Cheapflights users on 11/10. 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.
Tue 12/82:00 pm -
2 stops14h 10m
Mon 12/149:15 pm -
2 stops32h 02m
Deal found 11/10![British Airways logo]()
$796
This United Airlines deal was found by Cheapflights users on 11/10. 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 12/88:02 am -
2 stops22h 13m
Mon 12/1410:10 am -
1 stop19h 49m
Deal found 11/10![United Airlines logo]()
$831
This Delta deal was found by Cheapflights users on 11/11. 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.
Tue 12/812:36 pm -
1 stop15h 24m
Mon 12/1412:55 pm -
1 stop15h 43m
Deal found 11/11![Delta logo]()
$835
This Orbitz deal was found by Cheapflights users on 11/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/84:05 pm -
2 stops14h 10m
Mon 12/146:00 pm -
2 stops52h 26m
Deal found 11/11![Multiple Airlines logo]()
$839
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 November 12, 2026.
Search for one-way flight options from St. Louis to Belgium. Find affordable one-way fares based on user searches. Data last updated November 12, 2026.
This Justfly.com deal was found by Cheapflights users on 11/10. 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.
Sat 2/274:05 pm -
2 stops38h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Air Canada logo]()
$337
This United Airlines deal was found by Cheapflights users on 11/10. 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.
Sat 2/275:05 pm -
1 stop32h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![United Airlines logo]()
$340
This Justfly.com deal was found by Cheapflights users on 11/10. 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.
Fri 2/264:05 pm -
2 stops56h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Air Canada logo]()
$342
This TravelUp deal was found by Cheapflights users on 11/10. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2610:55 am -
1 stop15h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Lufthansa logo]()
$383
This Cheapflightsfares deal was found by Cheapflights users on 11/9. 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.
Wed 11/257:26 am -
2 stops19h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Aer Lingus logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 11/9. 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.
Wed 11/253:04 pm -
3 stops46h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$518
This United Airlines deal was found by Cheapflights users on 11/10. 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 2/261:08 pm -
3 stops35h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![United Airlines logo]()
$547
This TravelUp deal was found by Cheapflights users on 11/9. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:00 pm -
1 stop11h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Brussels Airlines logo]()
$553
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Fri 12/184:21 pm -
3 stops39h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Multiple Airlines logo]()
$613
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 12/225:37 pm -
3 stops41h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Multiple Airlines logo]()
$677
This Justfly.com deal was found by Cheapflights users on 11/11. 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.
Mon 12/216:00 am -
2 stops20h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Aer Lingus logo]()
$682
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 November 12, 2026.
Round-trip from | $717 (Expedia) |
|---|---|
One-way from | $337 (Justfly.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,506 |
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 7,457,451 searches. Data last updated November 12, 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 Lambert-St Louis - BRU Brussels Bruxelles-National
STLBRU
Lambert-St Louis
Sat 2/27
4:05 pm-1:15 pm
2 stops38h 10m
Brussels Bruxelles-National
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$337
St. LouisBrussels
STL Lambert-St Louis - BRU Brussels Bruxelles-National
STLBRU
Lambert-St Louis
Sat 2/27
5:05 pm-8:55 am
1 stop32h 50m
Brussels Bruxelles-National
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$340
St. LouisBrussels
STL Lambert-St Louis - BRU Brussels Bruxelles-National
STLBRU
Lambert-St Louis
Fri 2/26
4:05 pm-7:50 am
2 stops56h 45m
Brussels Bruxelles-National
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$342
Quickest round-trip
St. LouisBrussels
STL Lambert-St Louis - BRU Brussels Bruxelles-National
STLBRU
Lambert-St Louis
Wed 11/25
7:26 am-9:40 am
2 stops19h 14m
Brussels Bruxelles-National
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$429
St. LouisBrussels
STL Lambert-St Louis - BRU Brussels Bruxelles-National
STLBRU
Lambert-St Louis
Fri 2/26
1:08 pm-8:05 am
3 stops35h 57m
Brussels Bruxelles-National
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$547
St. LouisBrussels
STL Lambert-St Louis - BRU Brussels Bruxelles-National
STLBRU
Lambert-St Louis
Sun 2/14
3:30 pm-8:55 am
1 stop10h 25m
Brussels Bruxelles-National
Thu 2/18
10:00 am-3:58 pm
2 stops36h 58m
$727
St. LouisBrussels
STL Lambert-St Louis - BRU Brussels Bruxelles-National
STLBRU
Lambert-St Louis
Mon 4/12
4:05 pm-1:15 pm
2 stops14h 10m
Brussels Bruxelles-National
Mon 4/26
7:15 pm-1:25 pm
1 stop25h 10m
$749
St. LouisBrussels
STL Lambert-St Louis - BRU Brussels Bruxelles-National
STLBRU
Lambert-St Louis
Tue 4/13
6:30 am-7:10 am
2 stops17h 40m
Brussels Bruxelles-National
Fri 4/23
9:30 am-10:27 am
2 stops31h 57m
$750
St. LouisBrussels
STL Lambert-St Louis - BRU Brussels Bruxelles-National
STLBRU
Lambert-St Louis
Sun 12/20
6:00 am-9:40 am
2 stops20h 40m
Brussels Bruxelles-National
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$755
St. LouisBrussels
STL Lambert-St Louis - BRU Brussels Bruxelles-National
STLBRU
Lambert-St Louis
Fri 12/18
6:20 pm-2:35 pm
2 stops37h 15m
Brussels Bruxelles-National
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$820
Showing 1-10 of 18 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
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
No data available for this route at this time. Please check back soon.
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 November 12, 2026.
Read reviews from past customers who have flown United Airlines 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.
Entertainment
7.1
Food
6.7
Boarding
7.7
Crew
8.1
Comfort
7.3
Overall
7.3
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Entertainment
7.1
Food
6.7
Boarding
7.7
Crew
8.1
Comfort
7.3
Overall
7.3
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for St. Louis to Belgium
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Belgium by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Belgium by cabin class
Find flights from St. Louis to Belgium, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Belgium flights
Browse other St. Louis and Belgium flight options. Last updated on November 12, 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 airline flying from St. Louis to Belgium
Discover the top airline 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 7,457,451 searches. Data last updated November 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$507 | Average$1,109 | FlexibilityNo cancel fee | On-time69% |