$49+ Cheap flights from Missouri to O'Hare Intl (ORD)
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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ORD
Aug 24 — Aug 311
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Missouri to O'Hare IntlExplore the most affordable flight options available from Missouri to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.
Explore the most affordable flight options available from Missouri to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.
This Mytrip deal was found by Cheapflights users on 7/20. 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 8/183:25 pm
UIN
- ORD
Nonstop1h 45m
Contour
Mon 8/2412:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/20![Contour logo]()
$100
This Mytrip deal was found by Cheapflights users on 7/22. 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 8/223:25 pm
UIN
- ORD
Nonstop1h 45m
Contour
Sun 8/2312:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/22![Contour logo]()
$101
This Mytrip deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Mon 8/1012:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/22![Contour logo]()
$102
This Booking.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Sat 8/1511:15 am
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/22![Contour logo]()
$106
This Contour deal was found by Cheapflights users on 7/21. 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 Contour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Thu 8/2712:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/21![Contour logo]()
$118
This Mytrip deal was found by Cheapflights users on 7/21. 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 8/59:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Sun 8/912:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/21![Contour logo]()
$142
This Delta deal was found by Cheapflights users on 7/22. 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 8/136:30 am
STL
- ORD
1 stop6h 38m
Delta
Mon 8/171:41 pm
ORD
- STL
1 stop7h 01m
Delta
Deal found 7/22![Delta logo]()
$157
This Mytrip deal was found by Cheapflights users on 7/22. 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 8/81:30 pm
CGI
- ORD
Nonstop1h 50m
Contour
Sun 8/3011:15 am
ORD
- CGI
Nonstop1h 35m
Contour
Deal found 7/22![Contour logo]()
$162
This deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:00 am
STL
- ORD
Nonstop1h 33m
United Airlines
Thu 8/1310:29 am
ORD
- STL
Nonstop1h 33m
United Airlines
Deal found 7/23![United Airlines logo]()
$162
This Mytrip deal was found by Cheapflights users on 7/21. 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 9/21:30 pm
CGI
- ORD
Nonstop1h 50m
Contour
Sat 9/2611:15 am
ORD
- CGI
Nonstop1h 35m
Contour
Deal found 7/21![Contour logo]()
$163
This Mytrip deal was found by Cheapflights users on 7/21. 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 8/289:50 am
CGI
- ORD
Nonstop1h 55m
Contour
Mon 8/3111:15 am
ORD
- CGI
Nonstop1h 35m
Contour
Deal found 7/21![Contour logo]()
$164
This United Airlines deal was found by Cheapflights users on 7/22. 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 10/51:29 pm
STL
- ORD
Nonstop1h 31m
United Airlines
Wed 10/710:40 am
ORD
- STL
Nonstop1h 33m
United Airlines
Deal found 7/22![United Airlines logo]()
$165
Best flights from Missouri to O'Hare IntlDiscover carefully curated flight deals from Missouri to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 25, 2026.
Discover carefully curated flight deals from Missouri to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 25, 2026.
This Mytrip deal was found by Cheapflights users on 7/20. 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 8/183:25 pm
UIN
- ORD
Nonstop1h 45m
Contour
Mon 8/2412:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/20![Contour logo]()
$100
This Delta deal was found by Cheapflights users on 7/23. 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 8/206:30 am
STL
- ORD
1 stop6h 28m
Delta
Thu 8/2711:22 am
ORD
- STL
1 stop6h 16m
Delta
Deal found 7/23![Delta logo]()
$157
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/158:30 am
STL
- ORD
Nonstop1h 36m
United Airlines
Mon 8/178:29 pm
ORD
- STL
Nonstop1h 31m
United Airlines
Deal found 7/24![United Airlines logo]()
$188
This Mytrip deal was found by Cheapflights users on 7/22. 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 8/249:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Thu 9/312:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/22![Contour logo]()
$100
This Booking.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Sat 8/1511:15 am
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/22![Contour logo]()
$106
This Booking.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Tue 9/2212:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/23![Contour logo]()
$106
This Mytrip deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Mon 8/1012:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/21![Contour logo]()
$107
This Delta deal was found by Cheapflights users on 7/24. 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 9/264:10 pm
STL
- ORD
1 stop4h 20m
Delta
Tue 9/2911:17 am
ORD
- STL
1 stop5h 53m
Delta
Deal found 7/24![Delta logo]()
$167
This Contour deal was found by Cheapflights users on 7/19. 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 Contour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Wed 8/1211:15 am
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/19![Contour logo]()
$118
This Delta deal was found by Cheapflights users on 7/24. 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 8/1510:33 am
STL
- ORD
1 stop5h 44m
Delta
Mon 8/171:41 pm
ORD
- STL
1 stop7h 01m
Delta
Deal found 7/24![Delta logo]()
$167
This Contour deal was found by Cheapflights users on 7/23. 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 Contour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Thu 8/2712:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/23![Contour logo]()
$118
This Delta deal was found by Cheapflights users on 7/22. 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 10/286:40 am
STL
- ORD
1 stop6h 21m
Delta
Sat 10/3111:19 am
ORD
- STL
1 stop4h 06m
Delta
Deal found 7/22![Delta logo]()
$167
This Delta deal was found by Cheapflights users on 7/21. 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 8/1910:33 am
STL
- ORD
1 stop5h 44m
Delta
Wed 8/2611:22 am
ORD
- STL
1 stop6h 16m
Delta
Deal found 7/21![Delta logo]()
$167
This United Airlines deal was found by Cheapflights users on 7/24. 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 9/246:15 am
COU
- ORD
Nonstop1h 38m
United Airlines
Sun 9/279:00 am
ORD
- COU
Nonstop1h 39m
United Airlines
Deal found 7/24![United Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 7/22. 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 10/276:40 am
STL
- ORD
1 stop3h 59m
Delta
Sat 10/318:55 am
ORD
- STL
1 stop6h 30m
Delta
Deal found 7/22![Delta logo]()
$167
This United Airlines deal was found by Cheapflights users on 7/23. 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 9/1011:17 am
COU
- ORD
Nonstop1h 43m
United Airlines
Sun 9/139:20 pm
ORD
- COU
Nonstop1h 35m
United Airlines
Deal found 7/23![United Airlines logo]()
$227
This Mytrip deal was found by Cheapflights users on 7/21. 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 8/59:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Sun 8/912:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/21![Contour logo]()
$142
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:15 am
COU
- ORD
Nonstop1h 39m
United Airlines
Mon 8/319:20 pm
ORD
- COU
Nonstop1h 35m
United Airlines
Deal found 7/24![United Airlines logo]()
$227
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/156:15 am
COU
- ORD
Nonstop1h 39m
United Airlines
Tue 8/1812:50 pm
ORD
- COU
Nonstop1h 40m
United Airlines
Deal found 7/22![United Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 7/22. 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 8/242:10 pm
STL
- ORD
1 stop4h 19m
Delta
Mon 8/311:59 pm
ORD
- STL
1 stop6h 43m
Delta
Deal found 7/22![Delta logo]()
$198
This Mytrip deal was found by Cheapflights users on 7/21. 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 8/289:50 am
CGI
- ORD
Nonstop1h 55m
Contour
Mon 8/3111:15 am
ORD
- CGI
Nonstop1h 35m
Contour
Deal found 7/21![Contour logo]()
$164
This Delta deal was found by Cheapflights users on 7/22. 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 8/262:10 pm
STL
- ORD
1 stop6h 20m
Delta
Sat 8/292:30 pm
ORD
- STL
1 stop6h 12m
Delta
Deal found 7/22![Delta logo]()
$198
This United Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:30 am
JLN
- ORD
Nonstop1h 58m
United Airlines
Thu 8/2711:29 am
ORD
- JLN
Nonstop1h 49m
United Airlines
Deal found 7/21![United Airlines logo]()
$241
This Mytrip deal was found by Cheapflights users on 7/20. 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 9/51:30 pm
CGI
- ORD
Nonstop1h 50m
Contour
Mon 9/2811:15 am
ORD
- CGI
Nonstop1h 35m
Contour
Deal found 7/20![Contour logo]()
$167
This United Airlines deal was found by Cheapflights users on 7/23. 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 12/67:02 am
JLN
- ORD
Nonstop1h 47m
United Airlines
Sat 12/1910:30 am
ORD
- JLN
Nonstop1h 49m
United Airlines
Deal found 7/23![United Airlines logo]()
$241
This Delta deal was found by Cheapflights users on 7/19. 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 8/1210:33 am
STL
- ORD
1 stop5h 44m
Delta
Thu 8/278:48 am
ORD
- STL
1 stop4h 26m
Delta
Deal found 7/19![Delta logo]()
$215
This Contour deal was found by Cheapflights users on 7/23. 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 Contour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/309:50 am
CGI
- ORD
Nonstop1h 55m
Contour
Tue 9/111:15 am
ORD
- CGI
Nonstop1h 35m
Contour
Deal found 7/23![Contour logo]()
$183
This United Airlines deal was found by Cheapflights users on 7/20. 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 8/126:15 am
COU
- ORD
Nonstop1h 39m
United Airlines
Sun 8/168:40 am
ORD
- COU
Nonstop1h 34m
United Airlines
Deal found 7/20![United Airlines logo]()
$251
This Delta deal was found by Cheapflights users on 7/20. 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 8/242:10 pm
STL
- ORD
1 stop4h 19m
Delta
Thu 8/2711:22 am
ORD
- STL
1 stop6h 16m
Delta
Deal found 7/20![Delta logo]()
$215
This FlightHub deal was found by Cheapflights users on 7/22. 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.
Fri 9/259:50 am
CGI
- ORD
Nonstop1h 55m
Contour
Sun 9/2711:15 am
ORD
- CGI
Nonstop1h 35m
Contour
Deal found 7/22![Contour logo]()
$183
Last-minute flights from Missouri to O'Hare IntlDiscover last-minute flight deals from Missouri to O'Hare Intl. Data last updated July 25, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to O'Hare Intl. Data last updated July 25, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 7/21. 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 8/59:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Sun 8/912:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/21![Contour logo]()
$142
This Mytrip deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Mon 8/1012:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/22![Contour logo]()
$102
This Mytrip deal was found by Cheapflights users on 7/22. 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 8/81:30 pm
CGI
- ORD
Nonstop1h 50m
Contour
Sun 8/3011:15 am
ORD
- CGI
Nonstop1h 35m
Contour
Deal found 7/22![Contour logo]()
$162
This Mytrip deal was found by Cheapflights users on 7/22. 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 8/81:30 pm
CGI
- ORD
Nonstop1h 50m
Contour
Wed 8/124:00 pm
ORD
- CGI
Nonstop1h 35m
Contour
Deal found 7/22![Contour logo]()
$166
This Delta deal was found by Cheapflights users on 7/22. 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 8/136:30 am
STL
- ORD
1 stop6h 38m
Delta
Mon 8/171:41 pm
ORD
- STL
1 stop7h 01m
Delta
Deal found 7/22![Delta logo]()
$157
This deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:00 am
STL
- ORD
Nonstop1h 33m
United Airlines
Thu 8/1310:29 am
ORD
- STL
Nonstop1h 33m
United Airlines
Deal found 7/23![United Airlines logo]()
$162
This Booking.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Sat 8/1511:15 am
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/22![Contour logo]()
$106
This Mytrip deal was found by Cheapflights users on 7/20. 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 8/183:25 pm
UIN
- ORD
Nonstop1h 45m
Contour
Mon 8/2412:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/20![Contour logo]()
$100
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/186:54 pm
STL
- ORD
Nonstop1h 36m
United Airlines
Thu 8/201:30 pm
ORD
- STL
Nonstop1h 27m
United Airlines
Deal found 7/22![United Airlines logo]()
$165
This Mytrip deal was found by Cheapflights users on 7/22. 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 8/223:25 pm
UIN
- ORD
Nonstop1h 45m
Contour
Sun 8/2312:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/22![Contour logo]()
$101
This Contour deal was found by Cheapflights users on 7/21. 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 Contour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Thu 8/2712:30 pm
ORD
- UIN
Nonstop1h 25m
Contour
Deal found 7/21![Contour logo]()
$118
This Mytrip deal was found by Cheapflights users on 7/21. 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 8/289:50 am
CGI
- ORD
Nonstop1h 55m
Contour
Mon 8/3111:15 am
ORD
- CGI
Nonstop1h 35m
Contour
Deal found 7/21![Contour logo]()
$164
One-way flights from Missouri to O'Hare IntlSearch for one-way flight options from Missouri to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated July 25, 2026.
Search for one-way flight options from Missouri to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated July 25, 2026.
This Booking.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:25 pm
UIN
- ORD
Nonstop1h 45m
Contour
Deal found 7/23![Contour logo]()
$49
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/209:30 am
STL
- ORD
Nonstop1h 30m
United Airlines
Deal found 7/23![United Airlines logo]()
$49
This United Airlines deal was found by Cheapflights users on 7/24. 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 9/1612:59 pm
STL
- ORD
Nonstop1h 31m
United Airlines
Deal found 7/24![United Airlines logo]()
$59
This Contour deal was found by Cheapflights users on 7/23. 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 Contour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/79:55 am
UIN
- ORD
Nonstop1h 45m
Contour
Deal found 7/23![Contour logo]()
$64
This United Airlines deal was found by Cheapflights users on 7/23. 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 9/69:30 am
STL
- ORD
Nonstop1h 30m
United Airlines
Deal found 7/23![United Airlines logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 9/1010:35 am
STL
- ORD
1 stop9h 09m
Frontier
Deal found 7/20![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 9/1610:35 am
STL
- ORD
1 stop25h 27m
Frontier
Deal found 7/20![Frontier logo]()
$74
This Delta deal was found by Cheapflights users on 7/23. 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 8/206:30 am
STL
- ORD
1 stop6h 28m
Delta
Deal found 7/23![Delta logo]()
$79
This Booking.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:40 am
CGI
- ORD
Nonstop1h 55m
Contour
Deal found 7/23![Contour logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 10/2610:35 am
STL
- ORD
1 stop25h 27m
Frontier
Deal found 7/25![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 9/1210:35 am
STL
- ORD
1 stop25h 27m
Frontier
Deal found 7/20![Frontier logo]()
$92
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 10/227:29 am
STL
- ORD
Nonstop1h 31m
American Airlines
Deal found 7/25![American Airlines logo]()
$94
Find flight deals from Missouri to O'Hare Intl
Keep the following information in mind while searching for Missouri to O'Hare Intl flight deals. Data was last updated July 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $100 (Mytrip) |
One-way from | $49 (Booking.com) |
Popular in | January |
Cheapest in | August |
Average price | $361 |
Good round-trip deal | $148 or less |
Good one-way deal | $61 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to O'Hare Intl 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 July 25, 2026.
Use the filters below to find and compare flights from Missouri to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
QuincyChicago
UIN - ORD
UINORD
Quincy Regional
Tue 8/18
3:25 pm-5:10 pm
Nonstop1h 45m
Chicago O'Hare Intl
Mon 8/24
12:30 pm-1:55 pm
Nonstop1h 25m
$100
QuincyChicago
UIN - ORD
UINORD
Quincy Regional
Mon 8/24
9:55 am-11:40 am
Nonstop1h 45m
Chicago O'Hare Intl
Thu 9/3
12:30 pm-1:55 pm
Nonstop1h 25m
$100
QuincyChicago
UIN - ORD
UINORD
Quincy Regional
Fri 8/14
9:55 am-11:40 am
Nonstop1h 45m
Chicago O'Hare Intl
Sat 8/15
11:15 am-12:40 pm
Nonstop1h 25m
$106
QuincyChicago
UIN - ORD
UINORD
Quincy Regional
Wed 9/9
9:55 am-11:40 am
Nonstop1h 45m
Chicago O'Hare Intl
Tue 9/22
12:30 pm-1:55 pm
Nonstop1h 25m
$106
QuincyChicago
UIN - ORD
UINORD
Quincy Regional
Thu 8/6
9:55 am-11:40 am
Nonstop1h 45m
Chicago O'Hare Intl
Mon 8/10
12:30 pm-1:55 pm
Nonstop1h 25m
$107
QuincyChicago
UIN - ORD
UINORD
Quincy Regional
Wed 8/5
9:55 am-11:40 am
Nonstop1h 45m
Chicago O'Hare Intl
Wed 8/12
11:15 am-12:40 pm
Nonstop1h 25m
$118
QuincyChicago
UIN - ORD
UINORD
Quincy Regional
Mon 8/24
9:55 am-11:40 am
Nonstop1h 45m
Chicago O'Hare Intl
Thu 8/27
12:30 pm-1:55 pm
Nonstop1h 25m
$118
QuincyChicago
UIN - ORD
UINORD
Quincy Regional
Wed 8/5
9:55 am-11:40 am
Nonstop1h 45m
Chicago O'Hare Intl
Sun 8/9
12:30 pm-1:55 pm
Nonstop1h 25m
$142
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Thu 8/20
6:30 am-12:58 pm
1 stop6h 28m
Chicago O'Hare Intl
Thu 8/27
11:22 am-5:38 pm
1 stop6h 16m
$157
Cape GirardeauChicago
CGI - ORD
CGIORD
Cape Girardeau
Fri 8/28
9:50 am-11:45 am
Nonstop1h 55m
Chicago O'Hare Intl
Mon 8/31
11:15 am-12:50 pm
Nonstop1h 35m
$164
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Missouri with our price prediction graph.
UIN-ORD
STL-ORD
CGI-ORD
MCI-ORD
SGF-ORD
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 Missouri to Chicago O'Hare Intl Airport
USMO-ORD
UIN-ORD
STL-ORD
CGI-ORD
MCI-ORD
What is the cheapest month to book a flight from Missouri to Chicago O'Hare Intl Airport?
Currently, December is the cheapest month in which you can book a flight from Missouri to Chicago O'Hare Intl Airport (average of $254). Flying from Missouri to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $391). 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 MO to ORD?
Find hourly flight availability from Missouri to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 25, 2026.
A simple way to save on the total cost of your ticket is to fly from Missouri to Chicago O'Hare Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 46% on your trip compared to booking a flight in the evening.
Weekly flight availability from Missouri to Chicago O'Hare Intl Airport
Explore weekly flight availability from Missouri to O'Hare Intl. 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 July 25, 2026.
The most flights from USMO to ORD are scheduled on a Wednesday (78 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (38 on average).
How much does it cost to fly round-trip from Missouri to Chicago O'Hare Intl Airport?
Airfare is below average for this route at the moment.
Missouri to Chicago O'Hare Intl Airport flights typically cost between $275 and $437 in August.The cheapest round-trip price found within the last 5 days was $157 on Delta (Aug 13-Aug 17).
How far ahead should I book a flight from Missouri to Chicago O'Hare Intl Airport?
To ensure you get the cheapest price possible for a flight from Missouri to Chicago O'Hare Intl Airport, you should look to book at least 79 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Missouri to Chicago O'Hare Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Missouri to O'Hare Intl. Price data was last updated on July 18, 2026.
Travelers seeking maximum savings on their Missouri to Chicago O'Hare Intl Airport flight should consider departing on Friday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Missouri to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsBenton Harbor
Rosemont
Schaumburg
Lake Geneva
Naperville
Oak Brook
Delavan
Oakbrook Terrace
Gurnee
South Holland
Libertyville
Orland Park
Hoffman Estates
Beloit
Downers Grove
Rockford
Racine
Great Lakes
Janesville
Joliet
Browse thousands of different options on Cheapflights for your next trip
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Find flights from Missouri to O'Hare Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to O'Hare Intl
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 25, 2026.
Missouri and O'Hare Intl flights
Browse other Missouri and O'Hare Intl flight options. Last updated on July 25, 2026.
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Missouri to O'Hare Intl flights
Consider these flights traveling from Missouri to O'Hare Intl.
Top 4 airlines flying from Missouri to O'Hare Intl
Discover the top 4 airlines that operate flights from Missouri to O'Hare Intl. 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 July 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$62 | Average$164 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$97 | Average$310 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$145 | Average$358 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$158 | Average$182 | FlexibilityNo cancel fee | On-time62% |