$322+ 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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BRU
เม.ย. 9 — เม.ย. 161
Round-trip
1 adult, Economy
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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 มีนาคม 10, 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 มีนาคม 10, 2026.
This Flighttix deal was found by Cheapflights users on 3/8. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/2210:00 am
STL
- BRU
2 stops14h 10m
Air Canada
พ. 4/299:55 am
BRU
- STL
2 stops18h 18m
Air Canada
Deal found 3/8![Air Canada logo]()
$748
This Gotogate deal was found by Cheapflights users on 3/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/144:05 pm
STL
- BRU
2 stops14h 10m
Multiple Airlines
อ. 4/217:00 am
BRU
- STL
2 stops15h 25m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$752
This FlightHub deal was found by Cheapflights users on 3/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/2811:42 am
STL
- BRU
2 stops38h 58m
Scandinavian Airlines
พฤ. 5/75:45 am
BRU
- STL
2 stops22h 44m
Scandinavian Airlines
Deal found 3/6![Scandinavian Airlines logo]()
$753
This Flighttix deal was found by Cheapflights users on 3/8. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/2210:00 am
STL
- BRU
2 stops14h 50m
Multiple Airlines
พ. 4/2912:00 pm
BRU
- STL
1 stop14h 22m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$754
This Flighttix deal was found by Cheapflights users on 3/9. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 5/311:42 am
STL
- BRU
2 stops38h 58m
Scandinavian Airlines
อ. 5/1210:20 am
BRU
- STL
2 stops20h 39m
Scandinavian Airlines
Deal found 3/9![Scandinavian Airlines logo]()
$756
This Flighttix deal was found by Cheapflights users on 3/6. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/207:45 am
STL
- BRU
2 stops16h 25m
Multiple Airlines
จ. 4/275:30 pm
BRU
- STL
2 stops37h 27m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$765
This Flighttix deal was found by Cheapflights users on 3/8. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/2211:37 am
STL
- BRU
1 stop13h 08m
Lufthansa
พ. 4/2910:15 am
BRU
- STL
1 stop17h 58m
Lufthansa
Deal found 3/8![Lufthansa logo]()
$767
This KLM deal was found by Cheapflights users on 3/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 5/36:50 pm
STL
- BRU
1 stop29h 50m
KLM
อ. 5/129:45 am
BRU
- STL
1 stop21h 14m
KLM
Deal found 3/9![KLM logo]()
$769
This United Airlines deal was found by Cheapflights users on 3/5. 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.
อ. 4/1411:15 am
STL
- BRU
2 stops19h 00m
United Airlines
อ. 4/2111:10 am
BRU
- STL
1 stop12h 33m
United Airlines
Deal found 3/5![United Airlines logo]()
$773
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 5/31:00 pm
STL
- BRU
2 stops36h 55m
Air Canada
อ. 5/129:55 am
BRU
- STL
1 stop17h 30m
Air Canada
Deal found 3/9![Air Canada logo]()
$774
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 4/266:00 am
STL
- BRU
1 stop18h 40m
Delta
อ. 5/59:45 am
BRU
- STL
1 stop18h 34m
Delta
Deal found 3/6![Delta logo]()
$777
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 4/255:00 pm
STL
- BRU
1 stop31h 40m
Delta
อ. 5/59:45 am
BRU
- STL
1 stop14h 59m
Delta
Deal found 3/6![Delta logo]()
$783
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 มีนาคม 10, 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 มีนาคม 10, 2026.
This KLM deal was found by Cheapflights users on 3/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 5/36:50 pm
STL
- BRU
1 stop29h 50m
KLM
อ. 5/129:45 am
BRU
- STL
1 stop21h 14m
KLM
Deal found 3/9![KLM logo]()
$769
This Finnair deal was found by Cheapflights users on 3/6. 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.
อา. 4/1912:27 pm
STL
- BRU
2 stops27h 08m
Multiple Airlines
อา. 4/2611:20 am
BRU
- STL
2 stops19h 26m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$847
This United Airlines deal was found by Cheapflights users on 3/10. 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.
ศ. 4/2410:00 am
STL
- BRU
1 stop16h 00m
United Airlines
ศ. 5/19:55 am
BRU
- STL
1 stop17h 30m
United Airlines
Deal found 3/10![United Airlines logo]()
$870
This United Airlines deal was found by Cheapflights users on 3/8. 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.
จ. 4/63:15 pm
STL
- BRU
1 stop10h 45m
United Airlines
จ. 4/139:40 am
BRU
- STL
1 stop12h 45m
United Airlines
Deal found 3/8![United Airlines logo]()
$1,005
This United Airlines deal was found by Cheapflights users on 3/5. 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.
จ. 7/612:10 pm
STL
- BRU
1 stop12h 00m
United Airlines
อ. 7/218:30 am
BRU
- STL
1 stop11h 55m
United Airlines
Deal found 3/5![United Airlines logo]()
$1,085
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 5/31:00 pm
STL
- CRL
2 stops24h 40m
Multiple Airlines
อ. 5/129:00 am
CRL
- STL
2 stops18h 04m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,207
This KLM deal was found by Cheapflights users on 3/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/112:04 pm
STL
- BRU
1 stop12h 36m
KLM
ส. 4/189:45 am
BRU
- STL
1 stop16h 26m
KLM
Deal found 3/9![KLM logo]()
$1,234
This Finnair deal was found by Cheapflights users on 3/9. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/16:00 am
STL
- BRU
2 stops29h 20m
Multiple Airlines
ส. 4/1811:20 am
BRU
- STL
2 stops17h 57m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,231
This United Airlines deal was found by Cheapflights users on 3/8. 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.
พ. 4/110:00 am
STL
- BRU
1 stop16h 00m
United Airlines
ส. 4/1810:15 am
BRU
- STL
1 stop16h 16m
United Airlines
Deal found 3/8![United Airlines logo]()
$1,189
This Mytrip deal was found by Cheapflights users on 3/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/214:05 pm
STL
- CRL
3 stops22h 10m
Multiple Airlines
อ. 4/289:30 am
CRL
- STL
2 stops34h 55m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$1,402
This Mytrip deal was found by Cheapflights users on 3/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 7/78:55 am
STL
- CRL
3 stops20h 50m
Multiple Airlines
อา. 7/129:40 pm
CRL
- STL
3 stops47h 22m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$1,475
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 6/217:05 am
STL
- CRL
3 stops32h 25m
Multiple Airlines
อา. 7/129:40 pm
CRL
- STL
3 stops47h 22m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,515
This Mytrip deal was found by Cheapflights users on 3/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 7/1212:10 pm
STL
- CRL
2 stops26h 15m
Multiple Airlines
จ. 7/207:10 am
CRL
- STL
2 stops19h 52m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$1,697
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พฤ. 4/234:05 pm
STL
- CRL
3 stops22h 25m
Multiple Airlines
พฤ. 4/307:00 pm
CRL
- STL
2 stops25h 25m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,744
This Mytrip deal was found by Cheapflights users on 3/6. 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.
จ. 4/204:05 pm
STL
- CRL
3 stops21h 30m
Multiple Airlines
จ. 4/274:10 pm
CRL
- STL
3 stops30h 15m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$2,393
Last-minute flights from St. Louis to BelgiumDiscover last-minute flight deals from St. Louis to Belgium. Data last updated มีนาคม 10, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Belgium. Data last updated มีนาคม 10, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 3/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/144:05 pm
STL
- BRU
2 stops14h 10m
Multiple Airlines
อ. 4/217:00 am
BRU
- STL
2 stops15h 25m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$752
This United Airlines deal was found by Cheapflights users on 3/5. 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.
อ. 4/1411:15 am
STL
- BRU
2 stops19h 00m
United Airlines
อ. 4/2111:10 am
BRU
- STL
1 stop12h 33m
United Airlines
Deal found 3/5![United Airlines logo]()
$773
This Flighttix deal was found by Cheapflights users on 3/6. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/207:45 am
STL
- BRU
2 stops16h 25m
Multiple Airlines
จ. 4/275:30 pm
BRU
- STL
2 stops37h 27m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$765
This Mytrip deal was found by Cheapflights users on 3/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/214:05 pm
STL
- CRL
3 stops22h 10m
Multiple Airlines
อ. 4/289:30 am
CRL
- STL
2 stops34h 55m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$1,402
This Flighttix deal was found by Cheapflights users on 3/8. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/2210:00 am
STL
- BRU
2 stops14h 10m
Air Canada
พ. 4/299:55 am
BRU
- STL
2 stops18h 18m
Air Canada
Deal found 3/8![Air Canada logo]()
$748
This Flighttix deal was found by Cheapflights users on 3/8. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/2210:00 am
STL
- BRU
2 stops14h 50m
Multiple Airlines
พ. 4/2912:00 pm
BRU
- STL
1 stop14h 22m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$754
This Flighttix deal was found by Cheapflights users on 3/8. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 4/2211:37 am
STL
- BRU
1 stop13h 08m
Lufthansa
พ. 4/2910:15 am
BRU
- STL
1 stop17h 58m
Lufthansa
Deal found 3/8![Lufthansa logo]()
$767
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พฤ. 4/234:05 pm
STL
- CRL
3 stops22h 25m
Multiple Airlines
พฤ. 4/307:00 pm
CRL
- STL
2 stops25h 25m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,744
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 4/255:00 pm
STL
- BRU
1 stop31h 40m
Delta
อ. 5/59:45 am
BRU
- STL
1 stop14h 59m
Delta
Deal found 3/6![Delta logo]()
$783
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 4/255:00 pm
STL
- BRU
1 stop31h 40m
Delta
พ. 5/66:20 am
BRU
- STL
2 stops15h 09m
Delta
Deal found 3/6![Delta logo]()
$791
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อา. 4/266:00 am
STL
- BRU
1 stop18h 40m
Delta
อ. 5/59:45 am
BRU
- STL
1 stop18h 34m
Delta
Deal found 3/6![Delta logo]()
$777
This FlightHub deal was found by Cheapflights users on 3/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 4/2811:42 am
STL
- BRU
2 stops38h 58m
Scandinavian Airlines
พฤ. 5/75:45 am
BRU
- STL
2 stops22h 44m
Scandinavian Airlines
Deal found 3/6![Scandinavian Airlines logo]()
$753
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 มีนาคม 10, 2026.
Search for one-way flight options from St. Louis to Belgium. Find affordable one-way fares based on user searches. Data last updated มีนาคม 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
จ. 3/304:51 pm
STL
- BRU
3 stops57h 44m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
จ. 4/138:19 pm
STL
- BRU
3 stops57h 36m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
จ. 3/307:47 am
STL
- CRL
3 stops41h 38m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
จ. 5/188:13 pm
STL
- BRU
3 stops33h 42m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
จ. 3/168:10 pm
STL
- CRL
3 stops54h 10m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$407
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
อ. 4/284:59 pm
STL
- BRU
3 stops47h 01m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
อา. 3/224:51 pm
STL
- BRU
3 stops59h 44m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$423
This Trip.com deal was found by Cheapflights users on 3/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 4/1312:27 pm
STL
- BRU
2 stops38h 13m
Aer Lingus
Deal found 3/5![Aer Lingus logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
จ. 5/188:12 pm
STL
- CRL
3 stops39h 23m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$448
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
จ. 4/137:00 am
STL
- CRL
3 stops55h 15m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$451
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
อ. 5/195:33 pm
STL
- BRU
3 stops57h 07m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$457
This oojo deal was found by Cheapflights users on 3/5. 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.
ส. 3/216:14 am
STL
- BRU
2 stops21h 21m
Aer Lingus
Deal found 3/5![Aer Lingus logo]()
$458
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 มีนาคม 10, 2026.
Round-trip from | $748 (Flighttix) |
|---|---|
One-way from | $322 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $685 |
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 มีนาคม 10, 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
อา. 5/3
6:50 pm-7:40 am
1 stop29h 50m
Brussels Bruxelles-National
อ. 5/12
9:45 am-11:59 pm
1 stop21h 14m
$769
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
อา. 4/19
12:27 pm-10:35 pm
2 stops27h 08m
Brussels Bruxelles-National
อา. 4/26
11:20 am-11:46 pm
2 stops19h 26m
$847
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
ศ. 4/24
10:00 am-9:00 am
1 stop16h 00m
Brussels Bruxelles-National
ศ. 5/1
9:55 am-8:25 pm
1 stop17h 30m
$870
Quickest round-trip
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
จ. 4/6
3:15 pm-9:00 am
1 stop10h 45m
Brussels Bruxelles-National
จ. 4/13
9:40 am-3:25 pm
1 stop12h 45m
$1,005
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
จ. 7/6
12:10 pm-7:10 am
1 stop12h 00m
Brussels Bruxelles-National
อ. 7/21
8:30 am-1:25 pm
1 stop11h 55m
$1,085
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
พ. 4/1
10:00 am-9:00 am
1 stop16h 00m
Brussels Bruxelles-National
ส. 4/18
10:15 am-7:31 pm
1 stop16h 16m
$1,189
St. LouisBrussels
STL - CRL
STLCRL
Lambert-St Louis
อา. 5/3
1:00 pm-8:40 pm
2 stops24h 40m
Charleroi Brussels
อ. 5/12
9:00 am-8:04 pm
2 stops18h 04m
$1,207
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
พ. 4/1
6:00 am-6:20 pm
2 stops29h 20m
Brussels Bruxelles-National
ส. 4/18
11:20 am-10:17 pm
2 stops17h 57m
$1,231
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
พ. 4/1
12:04 pm-7:40 am
1 stop12h 36m
Brussels Bruxelles-National
ส. 4/18
9:45 am-7:11 pm
1 stop16h 26m
$1,234
St. LouisBrussels
STL - CRL
STLCRL
Lambert-St Louis
อ. 4/21
4:05 pm-9:15 pm
3 stops22h 10m
Charleroi Brussels
อ. 4/28
9:30 am-1:25 pm
2 stops34h 55m
$1,402
Showing 1-10 of 26 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 $424). Flying from St. Louis to Belgium in June is currently the most expensive (average of $974). 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 มีนาคม 10, 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.
Entertainment
7.1
Crew
8.1
Overall
7.4
Boarding
7.7
Comfort
7.3
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Entertainment
7.1
Crew
8.1
Overall
7.4
Boarding
7.7
Comfort
7.3
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Entertainment
7.1
Crew
8.1
Overall
7.4
Boarding
7.7
Comfort
7.3
Food
6.6
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
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St. Louis and Belgium flights
Browse other St. Louis and Belgium flight options. Last updated on มีนาคม 10, 2026.
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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 มีนาคม 10, 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% |