$290+ Cheap flights from Illinois 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BRU
May 17 — May 241
Round-trip
1 adult, Economy
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Cheapest flights from Illinois to BrusselsExplore the most affordable flight options available from Illinois to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
Explore the most affordable flight options available from Illinois to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
This oojo deal was found by Cheapflights users on 4/13. 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 12/27:20 pm
ORD
- BRU
1 stop17h 30m
Scandinavian Airlines
Wed 12/98:30 pm
BRU
- ORD
1 stop27h 15m
Scandinavian Airlines
Deal found 4/13![Scandinavian Airlines logo]()
$578
This oojo deal was found by Cheapflights users on 4/14. 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.
Sat 10/248:20 pm
ORD
- BRU
1 stop12h 10m
Scandinavian Airlines
Mon 11/27:15 pm
BRU
- ORD
1 stop28h 30m
Scandinavian Airlines
Deal found 4/14![Scandinavian Airlines logo]()
$579
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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 11/87:20 pm
ORD
- BRU
2 stops16h 00m
Scandinavian Airlines
Mon 11/1610:20 am
BRU
- ORD
1 stop13h 25m
Scandinavian Airlines
Deal found 4/14![Scandinavian Airlines logo]()
$580
This FlightHub deal was found by Cheapflights users on 4/14. 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.
Thu 11/127:20 pm
ORD
- BRU
2 stops16h 20m
Scandinavian Airlines
Mon 11/1610:20 am
BRU
- ORD
1 stop13h 25m
Scandinavian Airlines
Deal found 4/14![Scandinavian Airlines logo]()
$586
This Scandinavian Airlines deal was found by Cheapflights users on 4/12. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:20 pm
ORD
- BRU
1 stop16h 15m
Scandinavian Airlines
Thu 11/127:15 pm
BRU
- ORD
1 stop28h 30m
Scandinavian Airlines
Deal found 4/12![Scandinavian Airlines logo]()
$606
This Priceline deal was found by Cheapflights users on 4/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:30 pm
STL
- BRU
2 stops37h 10m
Scandinavian Airlines
Mon 10/128:30 pm
BRU
- STL
2 stops34h 09m
Scandinavian Airlines
Deal found 4/12![Scandinavian Airlines logo]()
$801
This Mytrip deal was found by Cheapflights users on 4/13. 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 5/117:05 pm
ORD
- CRL
2 stops20h 50m
Multiple Airlines
Tue 5/191:50 pm
CRL
- ORD
2 stops33h 10m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$822
This United Airlines deal was found by Cheapflights users on 4/14. 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 5/131:05 pm
STL
- BRU
2 stops17h 10m
United Airlines
Wed 5/209:55 am
BRU
- STL
2 stops32h 46m
United Airlines
Deal found 4/14![United Airlines logo]()
$836
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 8/23:45 pm
ORD
- CRL
2 stops15h 45m
Multiple Airlines
Sat 8/224:50 pm
CRL
- ORD
1 stop26h 00m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$838
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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 5/129:35 pm
STL
- BRU
1 stop15h 50m
British Airways
Tue 5/1910:55 am
BRU
- STL
1 stop15h 35m
British Airways
Deal found 4/14![British Airways logo]()
$847
This United Airlines deal was found by Cheapflights users on 4/14. 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 5/121:05 pm
STL
- BRU
2 stops17h 10m
United Airlines
Tue 5/199:55 am
BRU
- STL
1 stop17h 30m
United Airlines
Deal found 4/14![United Airlines logo]()
$850
This Mytrip deal was found by Cheapflights users on 4/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:25 pm
ORD
- CRL
2 stops18h 50m
Multiple Airlines
Wed 6/173:05 pm
CRL
- ORD
2 stops28h 35m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$854
Best flights from Illinois to BrusselsDiscover carefully curated flight deals from Illinois to Brussels that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
Discover carefully curated flight deals from Illinois to Brussels that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
This Turkish Airlines deal was found by Cheapflights users on 4/17. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:10 pm
ORD
- BRU
1 stop31h 00m
Turkish Airlines
Sun 9/202:25 pm
BRU
- ORD
1 stop26h 15m
Turkish Airlines
Deal found 4/17![Turkish Airlines logo]()
$696
This Scandinavian Airlines deal was found by Cheapflights users on 4/17. 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.
Thu 9/107:00 am
ORD
- BRU
2 stops19h 40m
Scandinavian Airlines
Sun 9/209:20 pm
BRU
- ORD
2 stops25h 50m
Scandinavian Airlines
Deal found 4/17![Scandinavian Airlines logo]()
$827
This United Airlines deal was found by Cheapflights users on 4/14. 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 5/121:05 pm
STL
- BRU
2 stops17h 10m
United Airlines
Tue 5/199:55 am
BRU
- STL
1 stop17h 30m
United Airlines
Deal found 4/14![United Airlines logo]()
$850
This KAYAK deal was found by Cheapflights users on 4/16. 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 stop15h 50m
British Airways
Mon 10/58:50 pm
BRU
- STL
1 stop29h 40m
British Airways
Deal found 4/16![British Airways logo]()
$881
This Mytrip deal was found by Cheapflights users on 4/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:25 pm
ORD
- CRL
2 stops20h 30m
Multiple Airlines
Sun 10/188:35 pm
CRL
- ORD
3 stops28h 40m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$955
This Delta deal was found by Cheapflights users on 4/15. 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.
Mon 10/121:05 pm
MDW
- BRU
1 stop11h 35m
Delta
Thu 10/229:45 am
BRU
- MDW
1 stop13h 40m
Delta
Deal found 4/15![Delta logo]()
$1,277
This KLM deal was found by Cheapflights users on 4/13. 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 5/1112:53 pm
MDW
- BRU
1 stop11h 47m
KLM
Tue 5/199:45 am
BRU
- MDW
1 stop13h 27m
KLM
Deal found 4/13![KLM logo]()
$1,378
This United Airlines deal was found by Cheapflights users on 4/14. 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 5/131:05 pm
STL
- BRU
1 stop11h 05m
United Airlines
Wed 5/209:55 am
BRU
- STL
1 stop17h 30m
United Airlines
Deal found 4/14![United Airlines logo]()
$853
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Thu 6/111:49 pm
ORD
- CRL
2 stops40h 01m
Multiple Airlines
Sat 6/204:50 pm
CRL
- ORD
1 stop26h 00m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$959
This United Airlines deal was found by Cheapflights users on 4/15. 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 5/135:00 am
PAH
- BRU
1 stop21h 00m
United Airlines
Wed 5/2011:10 am
BRU
- PAH
2 stops19h 20m
United Airlines
Deal found 4/15![United Airlines logo]()
$905
This Mytrip deal was found by Cheapflights users on 4/15. 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 5/148:00 am
ORD
- CRL
3 stops30h 30m
Multiple Airlines
Thu 5/216:30 am
CRL
- ORD
3 stops24h 26m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$987
This United Airlines deal was found by Cheapflights users on 4/13. 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 5/112:10 pm
PAH
- BRU
2 stops22h 50m
United Airlines
Mon 5/183:00 pm
BRU
- PAH
2 stops34h 19m
United Airlines
Deal found 4/13![United Airlines logo]()
$914
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 7/155:06 pm
ORD
- CRL
2 stops17h 39m
Multiple Airlines
Wed 7/224:10 pm
CRL
- ORD
1 stop26h 40m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$990
This Delta deal was found by Cheapflights users on 4/15. 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 10/105:59 pm
MDW
- BRU
2 stops30h 41m
Delta
Wed 10/219:45 am
BRU
- MDW
1 stop13h 40m
Delta
Deal found 4/15![Delta logo]()
$1,281
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/145:00 am
PAH
- BRU
2 stops25h 15m
United Airlines
Thu 5/219:55 am
BRU
- PAH
2 stops34h 47m
United Airlines
Deal found 4/16![United Airlines logo]()
$989
This Mytrip deal was found by Cheapflights users on 4/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/139:00 pm
ORD
- CRL
2 stops18h 15m
Multiple Airlines
Tue 5/191:50 pm
CRL
- ORD
2 stops33h 10m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$996
This KLM deal was found by Cheapflights users on 4/16. 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.
Wed 7/110:51 am
STL
- BRU
1 stop13h 49m
KLM
Mon 7/69:45 am
BRU
- STL
1 stop13h 32m
KLM
Deal found 4/16![KLM logo]()
$1,409
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Mon 7/64:55 pm
ORD
- CRL
1 stop12h 00m
Multiple Airlines
Wed 7/294:10 pm
CRL
- ORD
1 stop26h 40m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,006
This Scandinavian Airlines deal was found by Cheapflights users on 4/13. 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.
Fri 5/157:15 pm
ORD
- BRU
2 stops32h 00m
Scandinavian Airlines
Sun 5/319:20 pm
BRU
- ORD
2 stops25h 50m
Scandinavian Airlines
Deal found 4/13![Scandinavian Airlines logo]()
$1,543
This Delta deal was found by Cheapflights users on 4/15. 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.
Wed 9/169:30 am
MDW
- BRU
2 stops15h 10m
Delta
Tue 9/229:45 am
BRU
- MDW
2 stops15h 46m
Delta
Deal found 4/15![Delta logo]()
$1,431
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 6/71:20 pm
ORD
- CRL
2 stops22h 00m
Multiple Airlines
Wed 6/174:10 pm
CRL
- ORD
1 stop26h 40m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$1,008
This United Airlines deal was found by Cheapflights users on 4/12. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:05 pm
STL
- BRU
2 stops17h 10m
United Airlines
Wed 6/39:45 am
BRU
- STL
1 stop17h 40m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,155
This KLM deal was found by Cheapflights users on 4/15. 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.
Fri 5/1512:53 pm
MDW
- BRU
1 stop11h 47m
KLM
Wed 5/279:45 am
BRU
- MDW
1 stop13h 27m
KLM
Deal found 4/15![KLM logo]()
$1,587
This Delta deal was found by Cheapflights users on 4/16. 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 5/176:23 am
MDW
- BRU
1 stop18h 17m
Delta
Tue 5/269:45 am
BRU
- MDW
1 stop18h 24m
Delta
Deal found 4/16![Delta logo]()
$1,527
This United Airlines deal was found by Cheapflights users on 4/16. 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 6/11:05 pm
STL
- BRU
2 stops23h 55m
United Airlines
Mon 6/89:40 am
BRU
- STL
2 stops33h 01m
United Airlines
Deal found 4/16![United Airlines logo]()
$1,213
This Condor deal was found by Cheapflights users on 4/16. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:45 am
MDW
- BRU
2 stops21h 00m
Multiple Airlines
Fri 8/289:30 am
BRU
- MDW
2 stops19h 30m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,158
This Delta deal was found by Cheapflights users on 4/14. 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.
Thu 5/149:22 am
MDW
- BRU
2 stops17h 18m
Delta
Thu 5/219:45 am
BRU
- MDW
1 stop13h 27m
Delta
Deal found 4/14![Delta logo]()
$1,596
This United Airlines deal was found by Cheapflights users on 4/13. 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 5/288:15 pm
STL
- BRU
1 stop29h 45m
United Airlines
Thu 6/49:55 am
BRU
- STL
1 stop33h 11m
United Airlines
Deal found 4/13![United Airlines logo]()
$1,223
This United Airlines deal was found by Cheapflights users on 4/12. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/101:05 pm
STL
- BRU
1 stop11h 05m
United Airlines
Mon 6/229:40 am
BRU
- STL
1 stop17h 45m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,229
This Delta deal was found by Cheapflights users on 4/16. 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.
Mon 5/1112:53 pm
MDW
- BRU
1 stop11h 47m
Delta
Wed 5/208:05 am
BRU
- MDW
2 stops17h 28m
Delta
Deal found 4/16![Delta logo]()
$1,641
Last-minute flights from Illinois to BrusselsDiscover last-minute flight deals from Illinois to Brussels. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Brussels. Data last updated April 17, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 4/13. 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.
Sun 4/198:10 pm
ORD
- BRU
1 stop30h 45m
Turkish Airlines
Sun 4/267:20 am
BRU
- ORD
1 stop33h 20m
Turkish Airlines
Deal found 4/13![Turkish Airlines logo]()
$692
This FlightHub deal was found by Cheapflights users on 4/16. 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 4/198:10 pm
ORD
- BRU
1 stop18h 15m
Turkish Airlines
Mon 5/116:50 pm
BRU
- ORD
1 stop21h 50m
Turkish Airlines
Deal found 4/16![Turkish Airlines logo]()
$773
This Cheapflightsfares deal was found by Cheapflights users on 4/13. 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.
Mon 4/207:15 pm
ORD
- BRU
1 stop12h 20m
Scandinavian Airlines
Fri 5/15:45 am
BRU
- ORD
1 stop17h 25m
Scandinavian Airlines
Deal found 4/13![Scandinavian Airlines logo]()
$668
This FlightHub deal was found by Cheapflights users on 4/13. 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 4/218:10 pm
ORD
- BRU
1 stop18h 15m
Turkish Airlines
Tue 4/286:50 pm
BRU
- ORD
1 stop21h 50m
Turkish Airlines
Deal found 4/13![Turkish Airlines logo]()
$665
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/27:15 pm
ORD
- BRU
2 stops32h 25m
Scandinavian Airlines
Sat 5/910:20 am
BRU
- ORD
1 stop12h 50m
Scandinavian Airlines
Deal found 4/14![Scandinavian Airlines logo]()
$727
This Ticket deal was found by Cheapflights users on 4/16. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:15 pm
ORD
- BRU
1 stop31h 25m
Scandinavian Airlines
Wed 5/610:20 am
BRU
- ORD
1 stop12h 50m
Scandinavian Airlines
Deal found 4/16![Scandinavian Airlines logo]()
$760
This oojo deal was found by Cheapflights users on 4/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:15 pm
ORD
- BRU
1 stop31h 25m
Scandinavian Airlines
Thu 5/149:10 pm
BRU
- ORD
2 stops26h 00m
Scandinavian Airlines
Deal found 4/12![Scandinavian Airlines logo]()
$775
This Mytrip deal was found by Cheapflights users on 4/13. 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 5/117:05 pm
ORD
- CRL
2 stops20h 50m
Multiple Airlines
Tue 5/191:50 pm
CRL
- ORD
2 stops33h 10m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$822
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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 5/129:35 pm
STL
- BRU
1 stop15h 50m
British Airways
Tue 5/1910:55 am
BRU
- STL
1 stop15h 35m
British Airways
Deal found 4/14![British Airways logo]()
$847
This United Airlines deal was found by Cheapflights users on 4/14. 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 5/121:05 pm
STL
- BRU
2 stops17h 10m
United Airlines
Tue 5/199:55 am
BRU
- STL
1 stop17h 30m
United Airlines
Deal found 4/14![United Airlines logo]()
$850
This United Airlines deal was found by Cheapflights users on 4/14. 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 5/131:05 pm
STL
- BRU
2 stops17h 10m
United Airlines
Wed 5/209:55 am
BRU
- STL
2 stops32h 46m
United Airlines
Deal found 4/14![United Airlines logo]()
$836
This Gotogate deal was found by Cheapflights users on 4/15. 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.
Sun 5/177:05 am
STL
- BRU
1 stop17h 45m
Air Canada
Tue 5/269:55 am
BRU
- STL
1 stop17h 30m
Air Canada
Deal found 4/15![Air Canada logo]()
$886
One-way flights from Illinois to BrusselsSearch for one-way flight options from Illinois to Brussels. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
Search for one-way flight options from Illinois to Brussels. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/42:10 pm
ORD
- CRL
3 stops23h 25m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/310:25 pm
ORD
- CRL
3 stops37h 15m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Thu 7/237:25 pm
ORD
- CRL
2 stops20h 30m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/42:10 pm
ORD
- BRU
3 stops37h 05m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 7/223:45 pm
ORD
- CRL
2 stops23h 30m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:45 pm
ORD
- BRU
1 stop18h 40m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Thu 7/237:25 pm
ORD
- BRU
3 stops30h 45m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/269:00 pm
ORD
- BRU
1 stop29h 20m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$382
This oojo deal was found by Cheapflights users on 4/14. 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 8/39:41 am
STL
- BRU
2 stops21h 44m
British Airways
Deal found 4/14![British Airways logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:45 pm
ORD
- CRL
2 stops16h 45m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$384
This American Airlines deal was found by Cheapflights users on 4/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:29 pm
STL
- BRU
2 stops15h 36m
American Airlines
Deal found 4/16![American Airlines logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:30 am
MDW
- BRU
3 stops42h 10m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$387
Find flight deals from Illinois to Brussels
Keep the following information in mind while searching for Illinois to Brussels flight deals. Data was last updated April 17, 2026.
Round-trip from | $636 (Turkish Airlines) |
|---|---|
One-way from | $290 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $611 |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois 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 April 17, 2026.
Use the filters below to find and compare flights from Illinois to Brussels that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoBrussels
ORD - BRU
ORDBRU
Chicago O'Hare Intl
Thu 9/10
8:10 pm-10:10 am
1 stop31h 00m
Brussels Bruxelles-National
Sun 9/20
2:25 pm-9:40 am
1 stop26h 15m
$696
ChicagoBrussels
ORD - BRU
ORDBRU
Chicago O'Hare Intl
Thu 9/10
7:00 am-9:40 am
2 stops19h 40m
Brussels Bruxelles-National
Sun 9/20
9:20 pm-4:10 pm
2 stops25h 50m
$827
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Tue 5/12
1:05 pm-1:15 pm
2 stops17h 10m
Brussels Bruxelles-National
Tue 5/19
9:55 am-8:25 pm
1 stop17h 30m
$850
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Wed 5/13
1:05 pm-7:10 am
1 stop11h 05m
Brussels Bruxelles-National
Wed 5/20
9:55 am-8:25 pm
1 stop17h 30m
$853
St. LouisBrussels
STL - BRU
STLBRU
Lambert-St Louis
Wed 9/30
9:35 pm-8:25 pm
1 stop15h 50m
Brussels Bruxelles-National
Mon 10/5
8:50 pm-7:30 pm
1 stop29h 40m
$881
PaducahBrussels
PAH - BRU
PAHBRU
Paducah Barkley Regional
Wed 5/13
5:00 am-9:00 am
1 stop21h 00m
Brussels Bruxelles-National
Wed 5/20
11:10 am-11:30 pm
2 stops19h 20m
$905
PaducahBrussels
PAH - BRU
PAHBRU
Paducah Barkley Regional
Mon 5/11
2:10 pm-8:00 pm
2 stops22h 50m
Brussels Bruxelles-National
Mon 5/18
3:00 pm-6:19 pm
2 stops34h 19m
$914
ChicagoBrussels
ORD - CRL
ORDCRL
Chicago O'Hare Intl
Thu 10/8
7:25 pm-10:55 pm
2 stops20h 30m
Charleroi Brussels
Sun 10/18
8:35 pm-6:15 pm
3 stops28h 40m
$955
ChicagoBrussels
ORD - CRL
ORDCRL
Chicago O'Hare Intl
Thu 6/11
1:49 pm-12:50 pm
2 stops40h 01m
Charleroi Brussels
Sat 6/20
4:50 pm-11:50 am
1 stop26h 00m
$959
ChicagoBrussels
ORD - CRL
ORDCRL
Chicago O'Hare Intl
Thu 5/14
8:00 am-9:30 pm
3 stops30h 30m
Charleroi Brussels
Thu 5/21
6:30 am-11:56 pm
3 stops24h 26m
$987
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Brussels
Have a flexible travel schedule? Discover the best time to fly to Brussels from Illinois with our price prediction graph.
ORD-CRL
ORD-BRU
STL-BRU
MDW-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 Illinois to Brussels
USIL-BR1
ORD-CRL
ORD-BRU
STL-BRU
MDW-BRU
What is the cheapest month to book a flight from Illinois to Brussels?
Currently, May is the cheapest month in which you can book a flight from Illinois to Brussels (average of $129). Flying from Illinois to Brussels in June is currently the most expensive (average of $446). 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.
What is the cheapest time of day to fly from IL to BRU?
Find hourly flight availability from Illinois to Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Brussels as you normally would.
Weekly flight availability from Illinois to Brussels
Explore weekly flight availability from Illinois to Brussels. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 17, 2026.
The most flights from USIL to BR1 are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from Illinois to Brussels?
Related info for your journey
Find useful and relevant information for your journey from Illinois to Brussels. 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
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Alternative routes for Illinois to Brussels
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Brussels by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Brussels by cabin class
Find flights from Illinois to Brussels, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Brussels flights
Browse other Illinois and Brussels flight options. Last updated on April 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 8 airlines flying from Illinois to Brussels
Discover the top 8 airlines that operate flights from Illinois 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 April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$293 | Average$511 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$418 | Average$617 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$419 | Average$806 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$444 | Average$463 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$481 | Average$751 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$589 | Average$1,048 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$752 | Average$1,765 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$969 | Average$1,369 | FlexibilityNo cancel fee | On-time76% |