$122+ Cheap flights from Illinois to Colorado Springs (COS)
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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — COS
Sep 2 — Sep 91
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Colorado Springs with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Illinois to Colorado SpringsExplore the most affordable flight options available from Illinois to Colorado Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 3, 2026.
Explore the most affordable flight options available from Illinois to Colorado Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 3, 2026.
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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.
Fri 9/186:49 pm
ORD
- COS
Nonstop2h 51m
American Airlines
Mon 9/215:01 am
COS
- ORD
Nonstop2h 49m
American Airlines
Deal found 7/30![American Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:50 am
MDW
- COS
2 stops9h 10m
Southwest
Sat 9/1912:15 pm
COS
- MDW
1 stop6h 00m
Southwest
Deal found 7/31![Southwest logo]()
$277
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/69:03 am
ORD
- COS
Nonstop2h 52m
United Airlines
Sat 10/1011:57 am
COS
- ORD
Nonstop2h 45m
United Airlines
Deal found 7/31![United Airlines logo]()
$279
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:35 am
MDW
- COS
2 stops11h 10m
Southwest
Wed 10/2111:45 am
COS
- MDW
2 stops7h 55m
Southwest
Deal found 7/30![Southwest logo]()
$279
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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.
Mon 9/145:00 am
ORD
- COS
1 stop5h 22m
American Airlines
Mon 9/213:54 pm
COS
- ORD
1 stop7h 20m
American Airlines
Deal found 7/31![American Airlines logo]()
$280
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:25 pm
MDW
- COS
1 stop6h 25m
Southwest
Mon 9/214:20 pm
COS
- MDW
1 stop4h 45m
Southwest
Deal found 7/31![Southwest logo]()
$281
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:05 am
MDW
- COS
2 stops8h 50m
Southwest
Tue 8/256:15 am
COS
- MDW
1 stop4h 45m
Southwest
Deal found 7/31![Southwest logo]()
$282
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/58:46 am
ORD
- COS
Nonstop2h 47m
United Airlines
Wed 9/97:55 am
COS
- ORD
Nonstop3h 04m
United Airlines
Deal found 8/2![United Airlines logo]()
$285
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/38:55 am
ORD
- COS
2 stops12h 01m
Delta
Sat 10/101:26 pm
COS
- ORD
1 stop6h 26m
Delta
Deal found 7/31![Delta logo]()
$286
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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.
Sat 9/511:41 am
CMI
- COS
2 stops12h 12m
American Airlines
Thu 9/105:45 am
COS
- CMI
1 stop7h 26m
American Airlines
Deal found 7/30![American Airlines logo]()
$286
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/39:29 am
MDW
- COS
2 stops11h 27m
Delta
Sat 10/101:26 pm
COS
- MDW
1 stop8h 07m
Delta
Deal found 7/31![Delta logo]()
$286
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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.
Mon 10/2610:50 am
ORD
- COS
Nonstop3h 06m
American Airlines
Wed 10/285:21 pm
COS
- ORD
1 stop5h 38m
American Airlines
Deal found 7/29![American Airlines logo]()
$287
Best flights from Illinois to Colorado SpringsDiscover carefully curated flight deals from Illinois to Colorado Springs that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 3, 2026.
Discover carefully curated flight deals from Illinois to Colorado Springs that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 3, 2026.
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:05 am
MDW
- COS
2 stops9h 00m
Southwest
Sat 9/52:00 pm
COS
- MDW
1 stop7h 20m
Southwest
Deal found 7/31![Southwest logo]()
$277
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 10/109:03 am
ORD
- COS
Nonstop2h 52m
United Airlines
Mon 10/1211:57 am
COS
- ORD
Nonstop2h 45m
United Airlines
Deal found 8/2![United Airlines logo]()
$285
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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.
Sat 9/511:41 am
CMI
- COS
2 stops12h 12m
American Airlines
Thu 9/105:45 am
COS
- CMI
1 stop7h 26m
American Airlines
Deal found 7/30![American Airlines logo]()
$286
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 10/149:29 am
MDW
- COS
2 stops11h 47m
Delta
Sat 10/176:00 am
COS
- MDW
1 stop8h 17m
Delta
Deal found 8/1![Delta logo]()
$286
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:05 am
MDW
- COS
2 stops8h 50m
Southwest
Tue 8/251:15 pm
COS
- MDW
2 stops8h 05m
Southwest
Deal found 7/31![Southwest logo]()
$291
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/259:24 am
MDW
- COS
2 stops13h 14m
Delta
Tue 9/16:00 am
COS
- MDW
2 stops9h 59m
Delta
Deal found 8/2![Delta logo]()
$292
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 10/146:15 am
PIA
- COS
1 stop5h 40m
United Airlines
Sat 10/1711:57 am
COS
- PIA
1 stop6h 04m
United Airlines
Deal found 8/1![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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.
Mon 10/193:58 pm
BMI
- COS
1 stop8h 01m
American Airlines
Sat 10/241:26 pm
COS
- BMI
2 stops9h 33m
American Airlines
Deal found 7/29![American Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/261:50 pm
ORD
- COS
1 stop8h 48m
Delta
Fri 9/48:10 am
COS
- ORD
1 stop9h 09m
Delta
Deal found 7/31![Delta logo]()
$306
This Southwest deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1110:40 am
MDW
- COS
1 stop6h 50m
Southwest
Sat 12/1210:10 am
COS
- MDW
2 stops5h 55m
Southwest
Deal found 8/2![Southwest logo]()
$311
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/85:42 pm
MLI
- COS
1 stop4h 58m
United Airlines
Sat 12/1212:50 pm
COS
- MLI
2 stops7h 08m
United Airlines
Deal found 8/1![United Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/1610:55 am
ORD
- COS
Nonstop2h 53m
American Airlines
Sun 9/205:01 am
COS
- ORD
Nonstop2h 49m
American Airlines
Deal found 8/2![American Airlines logo]()
$336
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 10/261:23 pm
ORD
- COS
1 stop7h 53m
Delta
Wed 10/286:07 pm
COS
- ORD
2 stops14h 18m
Delta
Deal found 8/1![Delta logo]()
$311
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:45 am
MDW
- COS
2 stops12h 40m
Southwest
Sat 10/316:25 am
COS
- MDW
2 stops7h 40m
Southwest
Deal found 7/29![Southwest logo]()
$313
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/57:45 pm
ORD
- COS
Nonstop3h 09m
United Airlines
Sun 9/67:55 am
COS
- ORD
Nonstop3h 04m
United Airlines
Deal found 8/2![United Airlines logo]()
$325
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:05 am
MDW
- COS
2 stops9h 00m
Southwest
Wed 9/96:55 am
COS
- MDW
2 stops9h 15m
Southwest
Deal found 7/31![Southwest logo]()
$316
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/2911:08 am
MLI
- COS
2 stops12h 20m
Delta
Sat 9/51:20 pm
COS
- MLI
1 stop7h 59m
Delta
Deal found 7/31![Delta logo]()
$324
This American Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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.
Sat 8/226:00 am
MLI
- COS
2 stops9h 54m
American Airlines
Thu 8/273:51 pm
COS
- MLI
1 stop6h 35m
American Airlines
Deal found 8/3![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/238:46 am
ORD
- COS
Nonstop2h 47m
United Airlines
Thu 8/277:55 am
COS
- ORD
Nonstop3h 04m
United Airlines
Deal found 7/29![United Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am
STL
- COS
1 stop3h 50m
Southwest
Tue 9/11:15 pm
COS
- STL
1 stop7h 25m
Southwest
Deal found 7/29![Southwest logo]()
$333
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/248:46 am
ORD
- COS
Nonstop2h 47m
United Airlines
Wed 8/267:55 am
COS
- ORD
Nonstop3h 04m
United Airlines
Deal found 7/31![United Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 10/211:27 pm
MDW
- COS
2 stops7h 49m
Delta
Mon 10/261:31 pm
COS
- MDW
1 stop8h 02m
Delta
Deal found 7/29![Delta logo]()
$346
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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.
Sun 9/134:24 pm
BMI
- COS
1 stop7h 31m
American Airlines
Thu 9/243:54 pm
COS
- BMI
1 stop5h 53m
American Airlines
Deal found 7/29![American Airlines logo]()
$398
This Southwest deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:00 am
STL
- COS
1 stop5h 35m
Southwest
Fri 10/3011:10 am
COS
- STL
1 stop6h 55m
Southwest
Deal found 8/2![Southwest logo]()
$349
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/48:46 am
ORD
- COS
Nonstop2h 47m
United Airlines
Sun 9/611:55 am
COS
- ORD
Nonstop2h 43m
United Airlines
Deal found 7/29![United Airlines logo]()
$362
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/1812:29 pm
ORD
- COS
2 stops10h 09m
Delta
Tue 8/2511:27 am
COS
- ORD
2 stops11h 30m
Delta
Deal found 7/31![Delta logo]()
$383
This deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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.
Wed 8/194:49 pm
BMI
- COS
1 stop7h 04m
American Airlines
Sat 8/223:51 pm
COS
- BMI
1 stop6h 02m
American Airlines
Deal found 8/1![American Airlines logo]()
$434
This Southwest deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:30 am
STL
- COS
2 stops8h 10m
Southwest
Mon 9/141:30 pm
COS
- STL
2 stops7h 30m
Southwest
Deal found 8/2![Southwest logo]()
$359
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/77:45 pm
ORD
- COS
Nonstop3h 10m
United Airlines
Sat 8/297:50 am
COS
- ORD
Nonstop3h 04m
United Airlines
Deal found 7/29![United Airlines logo]()
$377
This deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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.
Fri 8/214:49 pm
BMI
- COS
1 stop7h 04m
American Airlines
Sat 8/223:51 pm
COS
- BMI
1 stop6h 02m
American Airlines
Deal found 8/1![American Airlines logo]()
$434
Last-minute flights from Illinois to Colorado SpringsDiscover last-minute flight deals from Illinois to Colorado Springs. Data last updated August 3, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Colorado Springs. Data last updated August 3, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/2010:56 am
ORD
- COS
Nonstop2h 51m
American Airlines
Mon 8/2412:37 pm
COS
- ORD
Nonstop2h 53m
American Airlines
Deal found 7/29![American Airlines logo]()
$277
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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.
Fri 8/2110:56 am
ORD
- COS
Nonstop2h 51m
American Airlines
Mon 8/243:51 pm
COS
- ORD
1 stop6h 39m
American Airlines
Deal found 7/30![American Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:25 am
MDW
- COS
1 stop7h 10m
Southwest
Mon 8/241:15 pm
COS
- MDW
Nonstop2h 20m
Southwest
Deal found 7/30![Southwest logo]()
$296
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:05 am
MDW
- COS
2 stops9h 00m
Southwest
Tue 8/251:15 pm
COS
- MDW
Nonstop2h 20m
Southwest
Deal found 8/1![Southwest logo]()
$301
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/223:25 pm
ORD
- COS
1 stop7h 13m
Delta
Tue 8/256:00 am
COS
- ORD
1 stop7h 09m
Delta
Deal found 7/31![Delta logo]()
$281
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:05 am
MDW
- COS
2 stops8h 50m
Southwest
Tue 8/256:15 am
COS
- MDW
1 stop4h 45m
Southwest
Deal found 7/31![Southwest logo]()
$282
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:05 am
MDW
- COS
2 stops9h 00m
Southwest
Sat 9/52:00 pm
COS
- MDW
1 stop7h 20m
Southwest
Deal found 7/31![Southwest logo]()
$277
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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.
Mon 8/2410:56 am
ORD
- COS
Nonstop2h 51m
American Airlines
Sat 9/512:36 pm
COS
- ORD
Nonstop2h 53m
American Airlines
Deal found 7/31![American Airlines logo]()
$286
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/256:05 am
MDW
- COS
1 stop7h 10m
Delta
Wed 8/261:20 pm
COS
- MDW
1 stop8h 16m
Delta
Deal found 7/31![Delta logo]()
$281
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:10 pm
MDW
- COS
1 stop6h 00m
Southwest
Thu 8/273:00 pm
COS
- MDW
2 stops5h 55m
Southwest
Deal found 7/31![Southwest logo]()
$286
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/255:30 am
ORD
- COS
2 stops13h 06m
Delta
Tue 9/111:27 am
COS
- ORD
2 stops8h 03m
Delta
Deal found 8/2![Delta logo]()
$292
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/259:24 am
MDW
- COS
2 stops13h 14m
Delta
Tue 9/16:00 am
COS
- MDW
2 stops9h 59m
Delta
Deal found 8/2![Delta logo]()
$292
One-way flights from Illinois to Colorado SpringsSearch for one-way flight options from Illinois to Colorado Springs. Find affordable one-way fares based on user searches. Data last updated August 3, 2026.
Search for one-way flight options from Illinois to Colorado Springs. Find affordable one-way fares based on user searches. Data last updated August 3, 2026.
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/298:46 am
ORD
- COS
Nonstop2h 47m
United Airlines
Deal found 7/30![United Airlines logo]()
$122
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:10 am
MDW
- COS
Nonstop2h 30m
Southwest
Deal found 7/29![Southwest logo]()
$122
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/271:50 pm
ORD
- COS
1 stop8h 48m
Delta
Deal found 7/29![Delta logo]()
$132
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/291:00 pm
MDW
- COS
1 stop7h 56m
Delta
Deal found 7/29![Delta logo]()
$132
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:10 pm
MDW
- COS
2 stops7h 40m
Southwest
Deal found 7/30![Southwest logo]()
$137
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/296:00 am
ORD
- COS
1 stop5h 47m
Delta
Deal found 8/1![Delta logo]()
$141
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/314:39 pm
MDW
- COS
1 stop5h 59m
Delta
Deal found 7/31![Delta logo]()
$141
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2510:15 am
MDW
- COS
2 stops6h 20m
Southwest
Deal found 7/29![Southwest logo]()
$142
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/316:30 am
ORD
- COS
2 stops12h 02m
Delta
Deal found 7/31![Delta logo]()
$146
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/319:29 am
MDW
- COS
2 stops9h 03m
Delta
Deal found 7/31![Delta logo]()
$146
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/288:46 am
ORD
- COS
Nonstop2h 47m
United Airlines
Deal found 7/29![United Airlines logo]()
$156
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:50 am
MDW
- COS
Nonstop2h 35m
Southwest
Deal found 7/29![Southwest logo]()
$156
Find flight deals from Illinois to Colorado Springs
Keep the following information in mind while searching for Illinois to Colorado Springs flight deals. Data was last updated August 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $277 (American Airlines) |
One-way from | $122 (United Airlines) |
Popular in | July |
Cheapest in | April |
Average price | $341 |
Good round-trip deal | $322 or less |
Good one-way deal | $175 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Colorado Springs 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 August 3, 2026.
Use the filters below to find and compare flights from Illinois to Colorado Springs that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoColorado Springs
MDW - COS
MDWCOS
Chicago Midway
Mon 8/24
10:05 am-6:05 pm
2 stops9h 00m
Colorado Springs
Sat 9/5
2:00 pm-10:20 pm
1 stop7h 20m
$277
ChicagoColorado Springs
ORD - COS
ORDCOS
Chicago O'Hare Intl
Sat 10/10
9:03 am-10:55 am
Nonstop2h 52m
Colorado Springs
Mon 10/12
11:57 am-3:42 pm
Nonstop2h 45m
$285
ChampaignColorado Springs
CMI - COS
CMICOS
Champaign University-Willard
Sat 9/5
11:41 am-10:53 pm
2 stops12h 12m
Colorado Springs
Thu 9/10
5:45 am-2:11 pm
1 stop7h 26m
$286
ChicagoColorado Springs
MDW - COS
MDWCOS
Chicago Midway
Wed 10/14
9:29 am-8:16 pm
2 stops11h 47m
Colorado Springs
Sat 10/17
6:00 am-3:17 pm
1 stop8h 17m
$286
ChicagoColorado Springs
MDW - COS
MDWCOS
Chicago Midway
Sat 8/22
10:05 am-5:55 pm
2 stops8h 50m
Colorado Springs
Tue 8/25
1:15 pm-10:20 pm
2 stops8h 05m
$291
ChicagoColorado Springs
MDW - COS
MDWCOS
Chicago Midway
Tue 8/25
9:24 am-9:38 pm
2 stops13h 14m
Colorado Springs
Tue 9/1
6:00 am-4:59 pm
2 stops9h 59m
$292
ChicagoColorado Springs
ORD - COS
ORDCOS
Chicago O'Hare Intl
Wed 8/26
1:50 pm-9:38 pm
1 stop8h 48m
Colorado Springs
Fri 9/4
8:10 am-6:19 pm
1 stop9h 09m
$306
ChicagoColorado Springs
MDW - COS
MDWCOS
Chicago Midway
Fri 12/11
10:40 am-4:30 pm
1 stop6h 50m
Colorado Springs
Sat 12/12
10:10 am-5:05 pm
2 stops5h 55m
$311
ChicagoColorado Springs
ORD - COS
ORDCOS
Chicago O'Hare Intl
Mon 10/26
1:23 pm-8:16 pm
1 stop7h 53m
Colorado Springs
Wed 10/28
6:07 pm-9:25 am
2 stops14h 18m
$311
ChicagoColorado Springs
MDW - COS
MDWCOS
Chicago Midway
Mon 10/26
9:45 am-9:25 pm
2 stops12h 40m
Colorado Springs
Sat 10/31
6:25 am-3:05 pm
2 stops7h 40m
$313
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Colorado Springs
Have a flexible travel schedule? Discover the best time to fly to Colorado Springs from Illinois with our price prediction graph.
ORD-COS
MDW-COS
CMI-COS
PIA-COS
STL-COS
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 Colorado Springs
USIL-COS
ORD-COS
MDW-COS
CMI-COS
PIA-COS
What is the cheapest month to book a flight from Illinois to Colorado Springs?
Currently, November is the cheapest month in which you can book a flight from Illinois to Colorado Springs (average of $332). Flying from Illinois to Colorado Springs in July is currently the most expensive (average of $436). 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 COS?
Find hourly flight availability from Illinois to Colorado Springs. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 3, 2026.
A simple way to save on the total cost of your ticket is to fly from Illinois to Colorado Springs in the afternoon. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight at noon.
Weekly flight availability from Illinois to Colorado Springs
Explore weekly flight availability from Illinois to Colorado Springs. 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 August 3, 2026.
The most flights from USIL to COS are scheduled on a Monday (5 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Illinois to Colorado Springs?
Airfare is below average for this route at the moment.
Illinois to Colorado Springs flights typically cost between $323 and $424 in September.The cheapest round-trip price found within the last 5 days was $277 on American Airlines (Sep 18-Sep 21).
How far ahead should I book a flight from Illinois to Colorado Springs?
To ensure you get the cheapest price possible for a flight from Illinois to Colorado Springs, you should look to book at least 47 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.
Related info for your journey
Find useful and relevant information for your journey from Illinois to Colorado Springs. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Colorado Springs flight routes
Complete your trip
Flights by cabin class
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Popular flights
Top destinations
Alternative routes for Illinois to Colorado Springs
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Colorado Springs
Explore flights to Colorado Springs departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 3, 2026.
Complete your trip
Complete your trip to Colorado Springs by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Colorado Springs by cabin class
Find flights from Illinois to Colorado Springs, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Colorado Springs flights
Browse other Illinois and Colorado Springs flight options. Last updated on August 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Illinois to Colorado Springs flights
Consider these flights traveling from Illinois to Colorado Springs.
Top 4 airlines flying from Illinois to Colorado Springs
Discover the top 4 airlines that operate flights from Illinois to Colorado Springs. 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 August 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$191 | Average$409 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$239 | Average$443 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$249 | Average$411 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$294 | Average$398 | FlexibilityNo cancel fee | On-timeN/A |