$147+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — COS
Oct 3 — Oct 101
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 September 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 September 3, 2026.
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:38 pm -
2 stops11h 53m
Sat 10/247:57 am -
2 stops11h 28m
Deal found 9/1![American Airlines logo]()
$291
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2610:50 am -
Nonstop3h 06m
Wed 10/2812:46 pm -
Nonstop2h 45m
Deal found 9/1![American Airlines logo]()
$293
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/305:00 am -
1 stop4h 40m
Wed 10/712:01 pm -
Nonstop2h 45m
Deal found 9/2![United Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 8/31. 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 10/1910:55 pm -
1 stop13h 10m
Thu 10/222:05 pm -
Nonstop2h 20m
Deal found 8/31![Southwest logo]()
$309
This American Airlines deal was found by Cheapflights users on 9/2. 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 10/2810:50 am -
Nonstop3h 06m
Fri 10/3012:46 pm -
Nonstop2h 45m
Deal found 9/2![American Airlines logo]()
$310
This Southwest deal was found by Cheapflights users on 9/2. 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.
Wed 10/283:35 pm -
Nonstop2h 35m
Fri 10/302:05 pm -
Nonstop2h 20m
Deal found 9/2![Southwest logo]()
$310
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/305:00 am -
1 stop5h 22m
Wed 10/77:57 am -
1 stop6h 22m
Deal found 9/2![American Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 9/1. 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 10/38:55 am -
2 stops12h 01m
Sat 10/101:26 pm -
1 stop6h 12m
Deal found 9/1![Delta logo]()
$318
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/309:03 am -
Nonstop2h 52m
Tue 10/61:29 pm -
1 stop5h 53m
Deal found 9/2![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Wed 10/214:38 pm -
1 stop7h 53m
Sat 10/245:21 pm -
1 stop4h 56m
Deal found 8/31![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/305:00 am -
1 stop4h 40m
Fri 10/211:57 am -
Nonstop2h 45m
Deal found 9/2![United Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 9/2. 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.
Thu 12/109:59 am -
2 stops8h 24m
Mon 12/148:00 am -
2 stops11h 15m
Deal found 9/2![Delta logo]()
$323
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 September 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 September 3, 2026.
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:38 pm -
2 stops11h 53m
Sat 10/247:57 am -
2 stops11h 28m
Deal found 9/1![American Airlines logo]()
$291
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/305:00 am -
1 stop4h 40m
Fri 10/211:57 am -
Nonstop2h 45m
Deal found 9/2![United Airlines logo]()
$320
This Southwest deal was found by Cheapflights users on 9/1. 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.
Tue 10/136:30 am -
1 stop4h 15m
Tue 10/206:00 am -
2 stops6h 30m
Deal found 9/1![Southwest logo]()
$338
This Delta deal was found by Cheapflights users on 8/31. 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 10/246:00 am -
2 stops12h 27m
Tue 10/278:17 am -
1 stop8h 27m
Deal found 8/31![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Sat 9/266:32 am -
1 stop5h 23m
Sat 10/312:15 pm -
2 stops9h 23m
Deal found 8/29![United Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Tue 9/1512:08 pm -
1 stop5h 21m
Sat 9/194:08 pm -
1 stop6h 10m
Deal found 8/31![American Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 8/31. 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.
Wed 10/283:35 pm -
Nonstop2h 35m
Fri 10/302:05 pm -
Nonstop2h 20m
Deal found 8/31![Southwest logo]()
$355
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/131:36 pm -
1 stop5h 19m
Tue 10/201:29 pm -
1 stop6h 07m
Deal found 9/1![United Airlines logo]()
$333
This Southwest deal was found by Cheapflights users on 9/2. 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.
Thu 10/1511:50 am -
Nonstop2h 35m
Mon 10/195:00 pm -
2 stops7h 10m
Deal found 9/2![Southwest logo]()
$356
This Delta deal was found by Cheapflights users on 8/29. 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.
Mon 10/261:23 pm -
1 stop7h 53m
Wed 10/286:00 am -
2 stops9h 40m
Deal found 8/29![Delta logo]()
$393
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 10/95:43 pm -
1 stop6h 48m
Tue 10/133:58 pm -
2 stops7h 13m
Deal found 9/2![American Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 10/76:00 am -
1 stop5h 55m
Sat 10/176:00 am -
1 stop5h 40m
Deal found 9/2![United Airlines logo]()
$333
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2610:10 am -
Nonstop2h 30m
Sat 10/37:55 am -
Nonstop2h 20m
Deal found 9/3![Southwest logo]()
$364
This Delta deal was found by Cheapflights users on 8/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/173:38 pm -
1 stop5h 38m
Sat 10/246:00 am -
1 stop7h 45m
Deal found 8/30![Delta logo]()
$413
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/156:05 am -
1 stop5h 42m
Sat 9/191:03 pm -
1 stop6h 42m
Deal found 8/31![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 9/1. 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.
Wed 10/76:00 am -
1 stop5h 35m
Thu 10/84:20 pm -
1 stop7h 50m
Deal found 9/1![Southwest logo]()
$367
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Mon 10/59:03 am -
Nonstop2h 52m
Sat 10/1011:57 am -
Nonstop2h 45m
Deal found 8/29![United Airlines logo]()
$355
This Delta deal was found by Cheapflights users on 8/31. 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 10/2811:19 am -
2 stops12h 03m
Fri 10/308:17 am -
2 stops11h 13m
Deal found 8/31![Delta logo]()
$436
This Southwest deal was found by Cheapflights users on 9/1. 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.
Tue 10/138:30 am -
2 stops7h 15m
Sat 10/172:50 pm -
1 stop7h 50m
Deal found 9/1![Southwest logo]()
$370
This American Airlines deal was found by Cheapflights users on 8/29. 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.
Wed 9/236:00 am -
1 stop7h 48m
Mon 9/2810:17 am -
2 stops12h 50m
Deal found 8/29![American Airlines logo]()
$462
This United Airlines deal was found by Cheapflights users on 8/30. 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 10/101:30 pm -
1 stop5h 15m
Tue 10/1311:57 am -
Nonstop2h 45m
Deal found 8/30![United Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 8/29. 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 11/25:15 am -
1 stop7h 20m
Mon 11/95:50 am -
2 stops8h 25m
Deal found 8/29![Southwest logo]()
$380
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:25 pm -
1 stop5h 04m
Sat 9/2610:17 am -
1 stop6h 12m
Deal found 9/1![American Airlines logo]()
$477
This Southwest deal was found by Cheapflights users on 8/29. 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 10/263:45 pm -
2 stops9h 30m
Thu 10/295:00 pm -
2 stops7h 10m
Deal found 8/29![Southwest logo]()
$385
This Delta deal was found by Cheapflights users on 8/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:06 am -
1 stop7h 24m
Sun 10/251:31 pm -
1 stop8h 05m
Deal found 8/30![Delta logo]()
$522
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/305:00 am -
1 stop4h 40m
Sat 10/35:07 pm -
1 stop5h 52m
Deal found 9/2![United Airlines logo]()
$393
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/134:24 pm -
1 stop7h 31m
Thu 9/243:54 pm -
1 stop5h 53m
Deal found 9/1![American Airlines logo]()
$517
This Southwest deal was found by Cheapflights users on 8/31. 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.
Fri 10/236:00 am -
2 stops10h 40m
Mon 10/265:00 pm -
2 stops7h 20m
Deal found 8/31![Southwest logo]()
$395
This Delta deal was found by Cheapflights users on 9/1. 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 9/161:43 pm -
1 stop7h 13m
Sat 9/196:00 am -
1 stop7h 56m
Deal found 9/1![Delta logo]()
$527
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/246:15 am -
1 stop5h 40m
Wed 10/281:28 pm -
1 stop6h 38m
Deal found 9/2![United Airlines logo]()
$399
Last-minute flights from Illinois to Colorado SpringsDiscover last-minute flight deals from Illinois to Colorado Springs. Data last updated September 3, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Colorado Springs. Data last updated September 3, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/305:00 am -
1 stop4h 40m
Wed 10/712:01 pm -
Nonstop2h 45m
Deal found 9/2![United Airlines logo]()
$303
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/309:40 am -
1 stop7h 49m
Tue 10/610:27 am -
1 stop7h 08m
Deal found 9/2![American Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/309:03 am -
Nonstop2h 52m
Tue 10/61:29 pm -
1 stop5h 53m
Deal found 9/2![United Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/305:00 am -
1 stop4h 40m
Fri 10/211:57 am -
Nonstop2h 45m
Deal found 9/2![United Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 9/1. 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 10/38:55 am -
2 stops12h 01m
Sat 10/101:26 pm -
1 stop6h 12m
Deal found 9/1![Delta logo]()
$318
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 10/139:03 am -
Nonstop2h 52m
Tue 10/2011:57 am -
Nonstop2h 45m
Deal found 9/2![United Airlines logo]()
$324
This Southwest deal was found by Cheapflights users on 8/31. 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 10/1910:55 pm -
1 stop13h 10m
Thu 10/222:05 pm -
Nonstop2h 20m
Deal found 8/31![Southwest logo]()
$309
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:38 pm -
2 stops11h 53m
Sat 10/247:57 am -
2 stops11h 28m
Deal found 9/1![American Airlines logo]()
$291
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Wed 10/214:38 pm -
1 stop7h 53m
Sat 10/245:21 pm -
1 stop4h 56m
Deal found 8/31![American Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2610:50 am -
Nonstop3h 06m
Wed 10/2812:46 pm -
Nonstop2h 45m
Deal found 9/1![American Airlines logo]()
$293
This American Airlines deal was found by Cheapflights users on 9/2. 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 10/2810:50 am -
Nonstop3h 06m
Fri 10/3012:46 pm -
Nonstop2h 45m
Deal found 9/2![American Airlines logo]()
$310
This Southwest deal was found by Cheapflights users on 9/2. 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.
Wed 10/283:35 pm -
Nonstop2h 35m
Fri 10/302:05 pm -
Nonstop2h 20m
Deal found 9/2![Southwest logo]()
$310
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 September 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 September 3, 2026.
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 2/179:20 am -
Nonstop2h 58m
Deal found 9/2![United Airlines logo]()
$147
This Delta deal was found by Cheapflights users on 9/2. 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.
Sat 10/315:27 am -
1 stop7h 54m
Deal found 9/2![Delta logo]()
$157
This Delta deal was found by Cheapflights users on 9/2. 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.
Thu 12/36:00 am -
1 stop7h 33m
Deal found 9/2![Delta logo]()
$157
This Delta deal was found by Cheapflights users on 9/2. 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 11/37:00 am -
2 stops11h 27m
Deal found 9/2![Delta logo]()
$162
This Delta deal was found by Cheapflights users on 9/2. 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.
Sat 2/279:55 am -
2 stops8h 19m
Deal found 9/2![Delta logo]()
$162
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Fri 10/239:03 am -
Nonstop2h 52m
Deal found 9/1![United Airlines logo]()
$164
This Southwest deal was found by Cheapflights users on 9/1. 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.
Wed 9/303:35 pm -
Nonstop2h 25m
Deal found 9/1![Southwest logo]()
$164
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:20 am -
1 stop7h 40m
Deal found 9/3![Southwest logo]()
$167
This Southwest deal was found by Cheapflights users on 9/2. 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.
Wed 10/211:45 pm -
2 stops7h 10m
Deal found 9/2![Southwest logo]()
$172
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:00 am -
1 stop5h 37m
Deal found 9/1![American Airlines logo]()
$174
This Delta deal was found by Cheapflights users on 9/2. 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.
Fri 12/46:00 am -
1 stop7h 33m
Deal found 9/2![Delta logo]()
$174
This American Airlines deal was found by Cheapflights users on 8/29. 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.
Wed 9/2310:55 am -
Nonstop2h 53m
Deal found 8/29![American Airlines logo]()
$178
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 September 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $291 (American Airlines) |
One-way from | $147 (American Airlines) |
Popular in | July |
Cheapest in | April |
Average price | $347 |
Good round-trip deal | $277 or less |
Good one-way deal | $195 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 7,457,451 searches. Data last updated September 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
ChampaignColorado Springs
CMI Champaign University-Willard - COS Colorado Springs
CMICOS
Champaign University-Willard
Tue 10/20
12:38 pm-11:31 pm
2 stops11h 53m
Colorado Springs
Sat 10/24
7:57 am-8:25 pm
2 stops11h 28m
$291
ChicagoColorado Springs
ORD Chicago O'Hare Intl - COS Colorado Springs
ORDCOS
Chicago O'Hare Intl
Wed 9/30
5:00 am-8:40 am
1 stop4h 40m
Colorado Springs
Fri 10/2
11:57 am-3:42 pm
Nonstop2h 45m
$320
MolineColorado Springs
MLI Moline Quad-City - COS Colorado Springs
MLICOS
Moline Quad-City
Sat 9/26
6:32 am-10:55 am
1 stop5h 23m
Colorado Springs
Sat 10/3
12:15 pm-10:38 pm
2 stops9h 23m
$324
St. LouisColorado Springs
STL Lambert-St Louis - COS Colorado Springs
STLCOS
Lambert-St Louis
Tue 10/13
1:36 pm-5:55 pm
1 stop5h 19m
Colorado Springs
Tue 10/20
1:29 pm-8:36 pm
1 stop6h 07m
$333
St. LouisColorado Springs
STL Lambert-St Louis - COS Colorado Springs
STLCOS
Lambert-St Louis
Wed 10/7
6:00 am-10:55 am
1 stop5h 55m
Colorado Springs
Sat 10/17
6:00 am-12:40 pm
1 stop5h 40m
$333
St. LouisColorado Springs
STL Lambert-St Louis - COS Colorado Springs
STLCOS
Lambert-St Louis
Tue 10/13
6:30 am-9:45 am
1 stop4h 15m
Colorado Springs
Tue 10/20
6:00 am-1:30 pm
2 stops6h 30m
$338
MolineColorado Springs
MLI Moline Quad-City - COS Colorado Springs
MLICOS
Moline Quad-City
Tue 9/15
12:08 pm-4:29 pm
1 stop5h 21m
Colorado Springs
Sat 9/19
4:08 pm-11:18 pm
1 stop6h 10m
$349
PeoriaColorado Springs
PIA Greater Peoria - COS Colorado Springs
PIACOS
Greater Peoria
Tue 9/15
6:05 am-10:47 am
1 stop5h 42m
Colorado Springs
Sat 9/19
1:03 pm-8:45 pm
1 stop6h 42m
$349
ChicagoColorado Springs
MDW Chicago Midway - COS Colorado Springs
MDWCOS
Chicago Midway
Wed 10/28
3:35 pm-5:10 pm
Nonstop2h 35m
Colorado Springs
Fri 10/30
2:05 pm-5:25 pm
Nonstop2h 20m
$355
ChicagoColorado Springs
ORD Chicago O'Hare Intl - COS Colorado Springs
ORDCOS
Chicago O'Hare Intl
Mon 10/5
9:03 am-10:55 am
Nonstop2h 52m
Colorado Springs
Sat 10/10
11:57 am-3:42 pm
Nonstop2h 45m
$355
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
STL-COS
BMI-COS
MLI-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
STL-COS
BMI-COS
What is the cheapest month to book a flight from Illinois to Colorado Springs?
Currently, January is the cheapest month in which you can book a flight from Illinois to Colorado Springs (average of $316). Flying from Illinois to Colorado Springs in July is currently the most expensive (average of $464). 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 September 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 20% 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 September 3, 2026.
The most flights from USIL to COS are scheduled on a Monday (5 on average). You will have fewer flight options on Sunday, 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 typical for this route at the moment.
Illinois to Colorado Springs flights typically cost between $277 and $421 in October.The cheapest round-trip price found within the last 5 days was $293 on American Airlines (Oct 26-Oct 28).
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 76 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
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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 September 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 September 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 7,457,451 searches. Data last updated September 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$211 | Average$411 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$246 | Average$411 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$274 | Average$453 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$294 | Average$398 | FlexibilityNo cancel fee | On-timeN/A |