$390+ Cheap flights from St. Louis (STL) to Brussels
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
Jul 11 — Jul 181
Round-trip
1 adult, Economy
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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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Cheapest flights from St. Louis to BrusselsExplore the most affordable flight options available from St. Louis to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.
Explore the most affordable flight options available from St. Louis to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.
This Mytrip deal was found by Cheapflights users on 6/8. 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.
Mon 10/1212:10 pm
STL
- BRU
2 stops37h 45m
Air Canada
Wed 11/1110:00 am
BRU
- STL
2 stops35h 18m
Air Canada
Deal found 6/8![Air Canada logo]()
$810
This FlightHub deal was found by Cheapflights users on 6/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/243:39 pm
STL
- BRU
2 stops21h 11m
Scandinavian Airlines
Sat 9/58:30 pm
BRU
- STL
2 stops31h 08m
Scandinavian Airlines
Deal found 6/8![Scandinavian Airlines logo]()
$819
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Mon 10/1212:10 pm
STL
- BRU
1 stop12h 00m
United Airlines
Wed 11/118:25 am
BRU
- STL
1 stop12h 20m
United Airlines
Deal found 6/8![United Airlines logo]()
$830
This Flighttix deal was found by Cheapflights users on 6/6. 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.
Mon 7/279:20 am
STL
- BRU
2 stops15h 30m
Multiple Airlines
Tue 8/46:20 am
BRU
- STL
2 stops16h 26m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$865
This Finnair deal was found by Cheapflights users on 6/6. 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 9/3012:46 pm
STL
- BRU
2 stops19h 19m
Multiple Airlines
Mon 10/57:05 pm
BRU
- STL
2 stops35h 36m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$871
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Sun 9/2012:10 pm
STL
- BRU
2 stops18h 05m
United Airlines
Fri 10/29:10 am
BRU
- STL
1 stop16h 31m
United Airlines
Deal found 6/9![United Airlines logo]()
$879
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 pm
STL
- BRU
1 stop12h 00m
Air Canada
Fri 10/29:10 am
BRU
- STL
1 stop16h 31m
Air Canada
Deal found 6/9![Air Canada logo]()
$882
This KLM deal was found by Cheapflights users on 6/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2710:51 am
STL
- BRU
1 stop13h 49m
KLM
Tue 8/49:45 am
BRU
- STL
1 stop13h 32m
KLM
Deal found 6/6![KLM logo]()
$889
This Mytrip deal was found by Cheapflights users on 6/7. 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.
Mon 7/612:10 pm
STL
- CRL
2 stops22h 40m
Multiple Airlines
Mon 7/136:55 pm
CRL
- STL
2 stops25h 30m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$1,128
This Mytrip deal was found by Cheapflights users on 6/6. 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.
Sat 7/42:40 pm
STL
- CRL
2 stops19h 20m
Multiple Airlines
Sat 7/118:45 am
CRL
- STL
2 stops18h 22m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$1,295
This Mytrip deal was found by Cheapflights users on 6/6. 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.
Mon 7/273:30 pm
STL
- CRL
2 stops20h 45m
Multiple Airlines
Tue 8/47:40 pm
CRL
- STL
2 stops24h 45m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$1,508
This Mytrip deal was found by Cheapflights users on 6/7. 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.
Sun 7/263:30 pm
STL
- CRL
2 stops24h 25m
Multiple Airlines
Tue 8/46:15 pm
CRL
- STL
3 stops32h 10m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$1,535
Best flights from St. Louis to BrusselsDiscover carefully curated flight deals from St. Louis to Brussels that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 11, 2026.
Discover carefully curated flight deals from St. Louis to Brussels that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 11, 2026.
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:10 pm
STL
- BRU
1 stop12h 00m
United Airlines
Mon 10/59:10 am
BRU
- STL
1 stop16h 31m
United Airlines
Deal found 6/7![United Airlines logo]()
$943
This Mytrip deal was found by Cheapflights users on 6/7. 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.
Mon 7/612:10 pm
STL
- CRL
2 stops22h 40m
Multiple Airlines
Mon 7/136:55 pm
CRL
- STL
2 stops25h 30m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$1,128
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:39 pm
STL
- BRU
1 stop11h 01m
Delta
Thu 7/98:05 am
BRU
- STL
2 stops16h 19m
Delta
Deal found 6/9![Delta logo]()
$1,320
This United Airlines deal was found by Cheapflights users on 6/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2912:10 pm
STL
- BRU
2 stops18h 05m
United Airlines
Sat 8/89:30 am
BRU
- STL
1 stop16h 12m
United Airlines
Deal found 6/6![United Airlines logo]()
$959
This United Airlines deal was found by Cheapflights users on 6/5. 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.
Fri 7/1012:10 pm
STL
- BRU
1 stop12h 00m
United Airlines
Fri 7/249:30 am
BRU
- STL
1 stop16h 12m
United Airlines
Deal found 6/5![United Airlines logo]()
$1,009
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Fri 7/241:13 pm
STL
- BRU
2 stops17h 02m
United Airlines
Fri 7/3111:10 am
BRU
- STL
1 stop19h 34m
United Airlines
Deal found 6/9![United Airlines logo]()
$1,013
This Mytrip deal was found by Cheapflights users on 6/6. 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.
Sat 7/42:40 pm
STL
- CRL
2 stops19h 20m
Multiple Airlines
Sat 7/118:45 am
CRL
- STL
2 stops18h 22m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$1,295
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/239:21 am
STL
- BRU
1 stop15h 19m
Delta
Wed 7/810:25 am
BRU
- STL
2 stops17h 12m
Delta
Deal found 6/9![Delta logo]()
$1,320
This United Airlines deal was found by Cheapflights users on 6/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/412:10 pm
STL
- BRU
1 stop12h 00m
United Airlines
Sat 7/119:30 am
BRU
- STL
1 stop16h 12m
United Airlines
Deal found 6/6![United Airlines logo]()
$1,079
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/237:08 am
STL
- BRU
1 stop17h 32m
Delta
Tue 7/78:05 am
BRU
- STL
2 stops19h 30m
Delta
Deal found 6/9![Delta logo]()
$1,320
This Mytrip deal was found by Cheapflights users on 6/6. 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.
Mon 7/273:30 pm
STL
- CRL
2 stops20h 45m
Multiple Airlines
Tue 8/47:40 pm
CRL
- STL
2 stops24h 45m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$1,508
This Mytrip deal was found by Cheapflights users on 6/7. 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.
Sun 7/263:30 pm
STL
- CRL
2 stops24h 25m
Multiple Airlines
Tue 8/46:15 pm
CRL
- STL
3 stops32h 10m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$1,535
This Mytrip deal was found by Cheapflights users on 6/8. 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.
Mon 10/127:01 pm
STL
- CRL
3 stops17h 54m
Multiple Airlines
Sat 10/246:25 am
CRL
- STL
3 stops32h 39m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$1,621
This Mytrip deal was found by Cheapflights users on 6/8. 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.
Fri 7/33:30 pm
STL
- CRL
2 stops24h 05m
Multiple Airlines
Wed 7/86:40 am
CRL
- STL
2 stops20h 27m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$1,785
This Mytrip deal was found by Cheapflights users on 6/8. 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.
Mon 10/127:01 pm
STL
- CRL
3 stops17h 54m
Multiple Airlines
Wed 11/114:45 pm
CRL
- STL
3 stops29h 45m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$1,941
Last-minute flights from St. Louis to BrusselsDiscover last-minute flight deals from St. Louis to Brussels. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Brussels. Data last updated June 11, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 6/6. 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 6/188:40 am
STL
- CRL
2 stops25h 30m
Multiple Airlines
Wed 6/245:55 pm
CRL
- STL
3 stops33h 30m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$1,709
This Mytrip deal was found by Cheapflights users on 6/6. 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.
Sat 7/42:40 pm
STL
- CRL
2 stops19h 20m
Multiple Airlines
Sat 7/118:45 am
CRL
- STL
2 stops18h 22m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$1,295
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/612:10 pm
STL
- BRU
1 stop12h 00m
United Airlines
Tue 7/219:30 am
BRU
- STL
2 stops33h 41m
United Airlines
Deal found 6/7![United Airlines logo]()
$935
This FlightHub deal was found by Cheapflights users on 6/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/612:10 pm
STL
- BRU
1 stop12h 00m
Air Canada
Tue 7/219:30 am
BRU
- STL
1 stop16h 12m
Air Canada
Deal found 6/7![Air Canada logo]()
$949
This Air Canada deal was found by Cheapflights users on 6/6. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/62:40 pm
STL
- BRU
2 stops15h 35m
Multiple Airlines
Tue 7/219:30 am
BRU
- STL
1 stop16h 12m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$950
This Mytrip deal was found by Cheapflights users on 6/7. 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.
Mon 7/612:10 pm
STL
- CRL
2 stops22h 40m
Multiple Airlines
Mon 7/136:55 pm
CRL
- STL
2 stops25h 30m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$1,128
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:05 pm
STL
- BRU
2 stops29h 10m
United Airlines
Tue 8/412:00 pm
BRU
- STL
2 stops18h 36m
United Airlines
Deal found 6/7![United Airlines logo]()
$905
This Air France deal was found by Cheapflights users on 6/7. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/263:58 pm
STL
- BRU
1 stop32h 42m
Multiple Airlines
Tue 8/49:45 am
BRU
- STL
1 stop13h 32m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$906
This Mytrip deal was found by Cheapflights users on 6/7. 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.
Sun 7/263:30 pm
STL
- CRL
2 stops24h 25m
Multiple Airlines
Tue 8/46:15 pm
CRL
- STL
3 stops32h 10m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$1,535
This Flighttix deal was found by Cheapflights users on 6/6. 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.
Mon 7/279:20 am
STL
- BRU
2 stops15h 30m
Multiple Airlines
Tue 8/46:20 am
BRU
- STL
2 stops16h 26m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$865
This KLM deal was found by Cheapflights users on 6/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2710:51 am
STL
- BRU
1 stop13h 49m
KLM
Tue 8/49:45 am
BRU
- STL
1 stop13h 32m
KLM
Deal found 6/6![KLM logo]()
$889
This Mytrip deal was found by Cheapflights users on 6/6. 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.
Mon 7/273:30 pm
STL
- CRL
2 stops20h 45m
Multiple Airlines
Tue 8/47:40 pm
CRL
- STL
2 stops24h 45m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$1,508
One-way flights from St. Louis to BrusselsSearch for one-way flight options from St. Louis to Brussels. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
Search for one-way flight options from St. Louis to Brussels. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This Travelocity deal was found by Cheapflights users on 6/7. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 pm
STL
- BRU
1 stop12h 00m
Air Canada
Deal found 6/7![Air Canada logo]()
$390
This TravelUp deal was found by Cheapflights users on 6/9. 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.
Tue 9/1512:59 pm
STL
- BRU
1 stop13h 01m
Lufthansa
Deal found 6/9![Lufthansa logo]()
$409
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 9/157:00 am
STL
- BRU
3 stops17h 10m
United Airlines
Deal found 6/9![United Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/224:09 pm
STL
- BRU
3 stops58h 01m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:06 pm
STL
- CRL
3 stops42h 24m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:08 pm
STL
- CRL
3 stops43h 37m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:08 pm
STL
- BRU
2 stops33h 47m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$438
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:06 pm
STL
- BRU
3 stops36h 49m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$441
This Mytrip deal was found by Cheapflights users on 6/7. 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.
Sun 9/208:55 am
STL
- CRL
2 stops19h 25m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$443
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:10 pm
STL
- BRU
2 stops24h 50m
Air Canada
Deal found 6/9![Air Canada logo]()
$459
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Mon 8/33:22 pm
STL
- BRU
2 stops14h 53m
United Airlines
Deal found 6/8![United Airlines logo]()
$460
This TravelUp deal was found by Cheapflights users on 6/8. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2212:55 pm
STL
- BRU
1 stop11h 30m
Brussels Airlines
Deal found 6/8![Brussels Airlines logo]()
$461
Find flight deals from St. Louis to Brussels
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Brussels (BR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 11, 2026.
Round-trip from | $810 (Mytrip) |
|---|---|
One-way from | $390 (Travelocity) |
Popular in | December |
Cheapest in | February |
Average price | $1,354 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Brussels 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 June 11, 2026.
Use the filters below to find and compare flights from St. Louis to Brussels 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
12:10 pm-7:10 am
1 stop12h 00m
Brussels Bruxelles-National
Mon 10/5
9:10 am-6:41 pm
1 stop16h 31m
$943
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Wed 7/29
12:10 pm-1:15 pm
2 stops18h 05m
Brussels Bruxelles-National
Sat 8/8
9:30 am-6:42 pm
1 stop16h 12m
$959
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Fri 7/10
12:10 pm-7:10 am
1 stop12h 00m
Brussels Bruxelles-National
Fri 7/24
9:30 am-6:42 pm
1 stop16h 12m
$1,009
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Fri 7/24
1:13 pm-1:15 pm
2 stops17h 02m
Brussels Bruxelles-National
Fri 7/31
11:10 am-11:44 pm
1 stop19h 34m
$1,013
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Sat 7/4
12:10 pm-7:10 am
1 stop12h 00m
Brussels Bruxelles-National
Sat 7/11
9:30 am-6:42 pm
1 stop16h 12m
$1,079
St. LouisBrussels
STL - CRL
STLCRL
Lambert-St Louis
Mon 7/6
12:10 pm-5:50 pm
2 stops22h 40m
Charleroi Brussels
Mon 7/13
6:55 pm-1:25 pm
2 stops25h 30m
$1,128
St. LouisBrussels
STL - CRL
STLCRL
Lambert-St Louis
Sat 7/4
2:40 pm-5:00 pm
2 stops19h 20m
Charleroi Brussels
Sat 7/11
8:45 am-8:07 pm
2 stops18h 22m
$1,295
Quickest round-trip
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Tue 6/23
1:39 pm-7:40 am
1 stop11h 01m
Brussels Bruxelles-National
Thu 7/9
8:05 am-5:24 pm
2 stops16h 19m
$1,320
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Tue 6/23
9:21 am-7:40 am
1 stop15h 19m
Brussels Bruxelles-National
Wed 7/8
10:25 am-8:37 pm
2 stops17h 12m
$1,320
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Tue 6/23
7:08 am-7:40 am
1 stop17h 32m
Brussels Bruxelles-National
Tue 7/7
8:05 am-8:35 pm
2 stops19h 30m
$1,320
Showing 1-10 of 24 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Brussels
Have a flexible travel schedule? Discover the best time to fly to Brussels from St. Louis with our price prediction graph.
STL-BR1
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 Brussels
STL-BR1
STL-BRU
STL-CRL
What is the cheapest month to book a flight from St. Louis to Brussels?
Currently, April is the cheapest month in which you can book a flight from St. Louis to Brussels (average of $414). Flying from St. Louis to Brussels in June is currently the most expensive (average of $1,282). 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.
How much does it cost to fly round-trip from St. Louis to Brussels?
Reviews of airlines servicing Brussels
Get insights into the airlines that provide service to Brussels. 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 Brussels. Reviews last updated June 11, 2026.
Read through reviews of airlines operating flights from St. Louis to Brussels, such as United Airlines and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Crew
8.1
Entertainment
7.1
Comfort
7.3
Overall
7.4
Food
6.6
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Boarding
7.7
Crew
8.1
Entertainment
7.1
Comfort
7.3
Overall
7.4
Food
6.6
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Boarding
7.7
Crew
8.1
Entertainment
7.1
Comfort
7.3
Overall
7.4
Food
6.6
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Brussels. 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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St. Louis and Brussels flights
Browse other St. Louis and Brussels flight options. Last updated on June 11, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on June 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from St. Louis to Brussels
Discover the top 2 airlines that operate flights from St. Louis to Brussels. 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 June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$441 | Average$1,340 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$574 | Average$875 | FlexibilityNo cancel fee | On-time69% |