$127+ Cheap flights from Illinois to Colorado Springs (COS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — COS
Nov 30 — Dec 71
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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to Colorado Springs
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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 October 31, 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 October 31, 2026.
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/711:00 am -
Nonstop3h 09m
Thu 12/101:39 pm -
Nonstop2h 50m
Deal found 10/28![American Airlines logo]()
$253
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 11/257:50 pm -
Nonstop3h 07m
Sat 12/53:15 pm -
1 stop5h 19m
Deal found 10/29![United Airlines logo]()
$268
This Delta deal was found by Cheapflights users on 10/29. 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 12/76:49 am -
1 stop6h 44m
Thu 12/108:02 am -
1 stop9h 04m
Deal found 10/29![Delta logo]()
$273
This Delta deal was found by Cheapflights users on 10/29. 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 12/76:00 am -
1 stop7h 33m
Thu 12/101:40 pm -
1 stop8h 14m
Deal found 10/29![Delta logo]()
$273
This Delta deal was found by Cheapflights users on 10/29. 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 11/266:00 am -
2 stops12h 28m
Thu 12/31:40 pm -
1 stop8h 14m
Deal found 10/29![Delta logo]()
$278
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/257:50 pm -
Nonstop3h 07m
Thu 12/35:45 am -
Nonstop2h 51m
Deal found 10/28![United Airlines logo]()
$281
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/217:57 pm -
1 stop5h 02m
Wed 11/2512:02 pm -
Nonstop2h 51m
Deal found 10/27![United Airlines logo]()
$282
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/185:00 am -
1 stop8h 04m
Wed 11/251:54 pm -
Nonstop2h 52m
Deal found 10/28![American Airlines logo]()
$283
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/158:50 am -
2 stops9h 10m
Thu 12/175:50 am -
2 stops8h 10m
Deal found 10/27![Southwest logo]()
$283
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/911:00 am -
Nonstop3h 09m
Tue 1/123:11 pm -
1 stop5h 18m
Deal found 10/28![American Airlines logo]()
$291
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/158:39 am -
2 stops9h 44m
Thu 12/178:02 am -
1 stop9h 04m
Deal found 10/27![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/96:00 am -
1 stop7h 33m
Tue 1/121:29 pm -
1 stop7h 48m
Deal found 10/28![Delta logo]()
$301
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 October 31, 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 October 31, 2026.
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/76:00 am -
1 stop7h 33m
Thu 12/101:40 pm -
1 stop8h 14m
Deal found 10/26![Delta logo]()
$273
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/158:50 am -
2 stops9h 10m
Thu 12/175:50 am -
2 stops8h 10m
Deal found 10/27![Southwest logo]()
$283
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/257:57 pm -
1 stop5h 02m
Thu 12/35:45 am -
Nonstop2h 51m
Deal found 10/28![United Airlines logo]()
$322
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 2/46:00 am -
1 stop7h 08m
Sat 2/612:58 pm -
2 stops10h 14m
Deal found 10/26![American Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/78:39 am -
2 stops9h 44m
Thu 12/106:05 pm -
2 stops13h 44m
Deal found 10/26![Delta logo]()
$284
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 1/710:38 am -
2 stops6h 52m
Sat 1/161:30 pm -
1 stop6h 29m
Deal found 10/29![United Airlines logo]()
$344
This Southwest deal was found by Cheapflights users on 10/30. 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 11/214:50 pm -
1 stop6h 05m
Wed 11/255:15 pm -
1 stop6h 00m
Deal found 10/30![Southwest logo]()
$345
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/156:10 am -
1 stop7h 23m
Mon 12/211:46 pm -
1 stop8h 20m
Deal found 10/26![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/133:58 pm -
1 stop8h 03m
Wed 11/185:17 pm -
1 stop5h 00m
Deal found 10/26![American Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/245:05 pm -
1 stop5h 40m
Mon 12/288:25 pm -
1 stop8h 15m
Deal found 10/27![Southwest logo]()
$346
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/138:46 am -
1 stop4h 30m
Tue 11/178:09 am -
1 stop4h 46m
Deal found 10/29![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/166:10 am -
1 stop7h 23m
Mon 12/211:46 pm -
1 stop8h 20m
Deal found 10/26![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/232:33 pm -
2 stops10h 23m
Tue 12/18:00 am -
1 stop6h 37m
Deal found 10/26![American Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/266:10 am -
2 stops9h 05m
Thu 12/311:50 am -
2 stops8h 45m
Deal found 10/28![Southwest logo]()
$368
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/36:10 am -
1 stop7h 23m
Sun 12/61:40 pm -
1 stop8h 21m
Deal found 10/28![Delta logo]()
$354
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 3/316:07 am -
1 stop7h 20m
Sun 4/48:00 am -
1 stop6h 46m
Deal found 10/28![American Airlines logo]()
$407
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/235:55 am -
1 stop4h 30m
Fri 11/275:50 am -
2 stops8h 05m
Deal found 10/28![Southwest logo]()
$372
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/217:50 pm -
Nonstop3h 07m
Wed 11/258:09 am -
Nonstop2h 47m
Deal found 10/30![United Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 10/30. 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.
Wed 1/207:10 am -
1 stop6h 24m
Tue 1/268:06 am -
2 stops11h 26m
Deal found 10/30![Delta logo]()
$365
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Sun 11/226:30 am -
1 stop5h 45m
Fri 11/278:40 am -
2 stops8h 03m
Deal found 10/30![United Airlines logo]()
$432
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/156:10 am -
1 stop7h 23m
Thu 12/241:46 pm -
1 stop7h 51m
Deal found 10/26![Delta logo]()
$384
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/192:35 pm -
1 stop8h 22m
Wed 12/21:40 pm -
1 stop6h 06m
Deal found 10/27![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/29. 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 1/305:41 pm -
1 stop5h 18m
Wed 2/31:30 pm -
1 stop6h 40m
Deal found 10/29![United Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 10/29. 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 11/236:01 am -
1 stop7h 25m
Tue 12/11:40 pm -
1 stop7h 46m
Deal found 10/29![Delta logo]()
$404
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Tue 1/262:26 pm -
1 stop8h 33m
Sat 1/301:30 pm -
1 stop6h 29m
Deal found 10/30![United Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/126:01 am -
2 stops12h 27m
Thu 11/191:31 pm -
1 stop8h 00m
Deal found 10/28![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/235:30 pm -
2 stops7h 29m
Thu 11/265:30 am -
2 stops7h 04m
Deal found 10/27![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/196:01 am -
1 stop7h 25m
Wed 11/251:31 pm -
1 stop8h 00m
Deal found 10/26![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/187:50 pm -
Nonstop3h 09m
Sun 12/207:00 am -
1 stop5h 35m
Deal found 10/28![United Airlines logo]()
$478
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/1811:19 am -
2 stops10h 31m
Wed 11/251:31 pm -
1 stop6h 18m
Deal found 10/28![Delta logo]()
$491
Last-minute flights from Illinois to Colorado SpringsDiscover last-minute flight deals from Illinois to Colorado Springs. Data last updated October 31, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Colorado Springs. Data last updated October 31, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/1811:00 am -
Nonstop3h 04m
Wed 11/251:54 pm -
Nonstop2h 52m
Deal found 10/28![American Airlines logo]()
$273
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 11/198:55 am -
Nonstop3h 20m
Sun 11/2212:02 pm -
Nonstop2h 51m
Deal found 10/29![United Airlines logo]()
$301
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/217:57 pm -
1 stop5h 02m
Wed 11/2512:02 pm -
Nonstop2h 51m
Deal found 10/27![United Airlines logo]()
$282
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/215:59 pm -
1 stop6h 57m
Mon 11/231:54 pm -
Nonstop2h 52m
Deal found 10/28![American Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/216:10 pm -
Nonstop2h 40m
Wed 11/255:15 pm -
1 stop6h 00m
Deal found 10/26![Southwest logo]()
$308
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/234:43 pm -
1 stop8h 13m
Fri 11/278:00 am -
1 stop6h 48m
Deal found 10/27![American Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/234:43 pm -
1 stop8h 13m
Thu 11/268:00 am -
1 stop6h 47m
Deal found 10/27![American Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 11/257:50 pm -
Nonstop3h 07m
Sat 12/53:15 pm -
1 stop5h 19m
Deal found 10/29![United Airlines logo]()
$268
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/257:50 pm -
Nonstop3h 07m
Thu 12/35:45 am -
Nonstop2h 51m
Deal found 10/28![United Airlines logo]()
$281
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/266:05 am -
1 stop7h 01m
Thu 12/31:39 pm -
Nonstop2h 50m
Deal found 10/27![American Airlines logo]()
$263
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/266:00 am -
1 stop7h 50m
Thu 12/34:15 pm -
1 stop4h 15m
Deal found 10/28![Southwest logo]()
$273
This Delta deal was found by Cheapflights users on 10/29. 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 11/266:00 am -
2 stops12h 28m
Thu 12/31:40 pm -
1 stop8h 14m
Deal found 10/29![Delta logo]()
$278
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 October 31, 2026.
Search for one-way flight options from Illinois to Colorado Springs. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.
This American Airlines deal was found by Cheapflights users on 10/29. 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 12/311:00 am -
Nonstop3h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![American Airlines logo]()
$127
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/265:00 am -
1 stop8h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![American Airlines logo]()
$137
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/175:55 am -
1 stop4h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$137
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/268:00 am -
2 stops10h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Delta logo]()
$142
This Delta deal was found by Cheapflights users on 10/29. 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 11/266:00 am -
2 stops12h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Delta logo]()
$142
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/179:52 am -
Nonstop3h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![American Airlines logo]()
$147
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/259:52 am -
Nonstop3h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![American Airlines logo]()
$155
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/202:03 pm -
1 stop9h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Delta logo]()
$157
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/205:55 am -
1 stop4h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$157
This Southwest deal was found by Cheapflights users on 10/29. 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 11/267:55 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Southwest logo]()
$164
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/225:25 am -
1 stop8h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Delta logo]()
$165
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 1/16:05 am -
1 stop4h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$165
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 October 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $253 (American Airlines) |
One-way from | $127 (American Airlines) |
Popular in | July |
Cheapest in | January |
Average price | $320 |
Good round-trip deal | $364 or less |
Good one-way deal | $241 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 October 31, 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
ORD Chicago O'Hare Intl - COS Colorado Springs
ORDCOS
Chicago O'Hare Intl
Thu 12/3
11:00 am-1:09 pm
Nonstop3h 09m
Colorado Springs
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$127
ChicagoColorado Springs
ORD Chicago O'Hare Intl - COS Colorado Springs
ORDCOS
Chicago O'Hare Intl
Thu 12/3
5:30 am-12:33 pm
1 stop8h 03m
Colorado Springs
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$137
ChicagoColorado Springs
ORD Chicago O'Hare Intl - COS Colorado Springs
ORDCOS
Chicago O'Hare Intl
Thu 11/26
8:00 am-5:28 pm
2 stops10h 28m
Colorado Springs
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$142
ChicagoColorado Springs
MDW Chicago Midway - COS Colorado Springs
MDWCOS
Chicago Midway
Thu 11/26
6:00 am-5:28 pm
2 stops12h 28m
Colorado Springs
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$142
ChicagoColorado Springs
ORD Chicago O'Hare Intl - COS Colorado Springs
ORDCOS
Chicago O'Hare Intl
Fri 11/20
2:03 pm-10:22 pm
1 stop9h 19m
Colorado Springs
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$157
ChicagoColorado Springs
MDW Chicago Midway - COS Colorado Springs
MDWCOS
Chicago Midway
Thu 11/26
7:55 am-12:50 pm
1 stop5h 55m
Colorado Springs
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$164
ChicagoColorado Springs
MDW Chicago Midway - COS Colorado Springs
MDWCOS
Chicago Midway
Fri 1/1
6:05 am-9:40 am
1 stop4h 35m
Colorado Springs
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$165
ChicagoColorado Springs
MDW Chicago Midway - COS Colorado Springs
MDWCOS
Chicago Midway
Thu 12/17
5:20 pm-9:50 pm
2 stops5h 30m
Colorado Springs
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$187
Quickest round-trip
ChicagoColorado Springs
ORD Chicago O'Hare Intl - COS Colorado Springs
ORDCOS
Chicago O'Hare Intl
Tue 12/8
7:52 pm-9:59 pm
Nonstop3h 07m
Colorado Springs
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$194
ChicagoColorado Springs
ORD Chicago O'Hare Intl - COS Colorado Springs
ORDCOS
Chicago O'Hare Intl
Tue 11/24
2:03 pm-10:22 pm
1 stop9h 19m
Colorado Springs
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$197
Showing 1-10 of 52 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
MLI-COS
BMI-COS
PIA-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
MLI-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 $308). 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 October 31, 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 39% on your trip compared to booking a flight in the evening.
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 $381 and $515 in December.The cheapest round-trip price found within the last 5 days was $253 on American Airlines (Dec 7-Dec 10).
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 38 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.
Traveling to a place near Colorado Springs?
Book flights to Colorado Springs if you plan to visit one of these locationsCañon City
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.
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Colorado Springs flight routes
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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 October 31, 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 October 31, 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 October 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$221 | Average$404 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$246 | Average$472 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$294 | Average$398 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$326 | Average$438 | FlexibilityNo cancel fee | On-time63% |