$99+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — COS
Apr 5 — Apr 121
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 March 6, 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 March 6, 2026.
This Southwest deal was found by Cheapflights users on 3/3. 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.
Tue 4/146:15 am
ORD
- COS
1 stop7h 20m
Southwest
Wed 4/224:45 pm
COS
- ORD
1 stop6h 10m
Southwest
Deal found 3/3![Southwest logo]()
$211
This Southwest deal was found by Cheapflights users on 3/3. 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 4/15:50 pm
MDW
- COS
1 stop6h 45m
Southwest
Wed 4/84:05 pm
COS
- MDW
1 stop4h 25m
Southwest
Deal found 3/3![Southwest logo]()
$211
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 3/312:12 pm
STL
- COS
1 stop8h 53m
Delta
Wed 4/18:15 am
COS
- STL
1 stop7h 52m
Delta
Deal found 3/4![Delta logo]()
$217
This United Airlines deal was found by Cheapflights users on 3/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:50 am
ORD
- COS
Nonstop3h 07m
United Airlines
Wed 4/221:33 pm
COS
- ORD
1 stop6h 47m
United Airlines
Deal found 3/3![United Airlines logo]()
$219
This Southwest deal was found by Cheapflights users on 3/3. 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 5/611:55 am
ORD
- COS
2 stops10h 25m
Southwest
Wed 5/1312:40 pm
COS
- ORD
2 stops10h 15m
Southwest
Deal found 3/3![Southwest logo]()
$221
This Southwest deal was found by Cheapflights users on 3/3. 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.
Tue 3/318:10 am
MDW
- COS
2 stops8h 30m
Southwest
Tue 4/76:30 am
COS
- MDW
2 stops7h 25m
Southwest
Deal found 3/3![Southwest logo]()
$221
This Southwest deal was found by Cheapflights users on 3/3. 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 4/16:15 am
ORD
- COS
2 stops13h 00m
Southwest
Wed 4/84:45 pm
COS
- ORD
1 stop6h 10m
Southwest
Deal found 3/3![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 4/712:28 pm
STL
- COS
2 stops10h 37m
Delta
Wed 4/81:28 pm
COS
- STL
1 stop6h 38m
Delta
Deal found 3/4![Delta logo]()
$222
This Southwest deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 4/94:15 pm
ORD
- COS
1 stop6h 30m
Southwest
Tue 4/144:45 pm
COS
- ORD
1 stop6h 10m
Southwest
Deal found 3/5![Southwest logo]()
$229
This Delta deal was found by Cheapflights users on 3/2. 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.
Wed 8/124:00 pm
BMI
- COS
1 stop6h 15m
Delta
Wed 8/191:40 pm
COS
- BMI
1 stop7h 42m
Delta
Deal found 3/2![Delta logo]()
$229
This Southwest deal was found by Cheapflights users on 3/2. 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 4/211:10 am
MDW
- COS
1 stop5h 55m
Southwest
Tue 4/76:50 pm
COS
- MDW
1 stop9h 35m
Southwest
Deal found 3/2![Southwest logo]()
$229
This United Airlines deal was found by Cheapflights users on 3/1. 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.
Mon 4/137:45 pm
ORD
- COS
Nonstop3h 09m
United Airlines
Wed 4/151:33 pm
COS
- ORD
1 stop6h 47m
United Airlines
Deal found 3/1![United Airlines logo]()
$237
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 March 6, 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 March 6, 2026.
This Southwest deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 5/122:10 pm
MDW
- COS
1 stop7h 05m
Southwest
Tue 5/191:10 pm
COS
- MDW
1 stop9h 10m
Southwest
Deal found 3/5![Southwest logo]()
$211
This Delta deal was found by Cheapflights users on 3/2. 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.
Wed 8/124:00 pm
BMI
- COS
1 stop6h 15m
Delta
Wed 8/191:40 pm
COS
- BMI
1 stop7h 42m
Delta
Deal found 3/2![Delta logo]()
$229
This United Airlines deal was found by Cheapflights users on 3/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/299:06 am
ORD
- COS
Nonstop3h 04m
United Airlines
Mon 6/112:16 pm
COS
- ORD
Nonstop2h 46m
United Airlines
Deal found 3/3![United Airlines logo]()
$253
This American Airlines deal was found by Cheapflights users on 3/1. 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 3/245:22 pm
PIA
- COS
1 stop5h 48m
American Airlines
Mon 3/304:48 pm
COS
- PIA
1 stop5h 10m
American Airlines
Deal found 3/1![American Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 4/95:30 am
MDW
- COS
2 stops9h 05m
Southwest
Tue 4/142:30 pm
COS
- MDW
1 stop4h 50m
Southwest
Deal found 3/5![Southwest logo]()
$234
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 5/126:00 am
STL
- COS
1 stop7h 48m
Delta
Sat 5/168:15 am
COS
- STL
2 stops12h 14m
Delta
Deal found 3/4![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 3/2. 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 4/95:30 am
MDW
- COS
1 stop5h 30m
Southwest
Mon 4/138:00 pm
COS
- MDW
2 stops8h 00m
Southwest
Deal found 3/2![Southwest logo]()
$252
This United Airlines deal was found by Cheapflights users on 3/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:10 am
STL
- COS
1 stop4h 30m
United Airlines
Wed 8/195:30 am
COS
- STL
1 stop6h 10m
United Airlines
Deal found 3/3![United Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 5/15:15 pm
STL
- COS
1 stop6h 00m
Southwest
Tue 5/59:10 am
COS
- STL
2 stops7h 45m
Southwest
Deal found 3/5![Southwest logo]()
$270
This United Airlines deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 5/233:52 pm
MLI
- COS
2 stops7h 14m
United Airlines
Sun 5/245:30 am
COS
- MLI
2 stops7h 26m
United Airlines
Deal found 3/4![United Airlines logo]()
$300
This American Airlines deal was found by Cheapflights users on 3/2. 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.
Sat 4/45:00 am
BMI
- COS
1 stop7h 41m
American Airlines
Thu 4/91:39 pm
COS
- BMI
1 stop7h 48m
American Airlines
Deal found 3/2![American Airlines logo]()
$358
This Southwest deal was found by Cheapflights users on 3/3. 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.
Fri 5/293:40 pm
MDW
- COS
1 stop9h 10m
Southwest
Mon 6/18:00 pm
COS
- MDW
1 stop8h 25m
Southwest
Deal found 3/3![Southwest logo]()
$274
This United Airlines deal was found by Cheapflights users on 3/2. 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 6/26:00 am
BMI
- COS
1 stop6h 10m
United Airlines
Sat 6/612:56 pm
COS
- BMI
2 stops8h 31m
United Airlines
Deal found 3/2![United Airlines logo]()
$304
This United Airlines deal was found by Cheapflights users on 3/2. 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 6/28:20 am
PIA
- COS
2 stops7h 20m
United Airlines
Sat 6/612:56 pm
COS
- PIA
2 stops7h 09m
United Airlines
Deal found 3/2![United Airlines logo]()
$306
This Southwest deal was found by Cheapflights users on 3/2. 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 3/256:10 am
STL
- COS
1 stop4h 55m
Southwest
Wed 3/251:30 pm
COS
- STL
1 stop6h 55m
Southwest
Deal found 3/2![Southwest logo]()
$287
This American Airlines deal was found by Cheapflights users on 2/28. 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.
Thu 4/166:33 am
EVV
- COS
1 stop6h 19m
American Airlines
Sat 4/255:13 pm
COS
- EVV
1 stop4h 57m
American Airlines
Deal found 2/28![American Airlines logo]()
$413
This United Airlines deal was found by Cheapflights users on 2/28. 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 3/187:00 am
ORD
- COS
1 stop5h 01m
United Airlines
Sat 3/215:15 pm
COS
- ORD
1 stop4h 40m
United Airlines
Deal found 2/28![United Airlines logo]()
$331
This Southwest deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 5/296:25 pm
MDW
- COS
1 stop6h 25m
Southwest
Sun 5/318:05 pm
COS
- MDW
1 stop7h 55m
Southwest
Deal found 3/4![Southwest logo]()
$303
This Delta deal was found by Cheapflights users on 3/1. 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.
Fri 3/139:50 am
ORD
- COS
2 stops11h 38m
Delta
Mon 3/161:28 pm
COS
- ORD
1 stop6h 42m
Delta
Deal found 3/1![Delta logo]()
$444
This United Airlines deal was found by Cheapflights users on 3/1. 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.
Thu 3/198:50 am
ORD
- COS
Nonstop3h 10m
United Airlines
Mon 3/233:25 pm
COS
- ORD
1 stop6h 29m
United Airlines
Deal found 3/1![United Airlines logo]()
$333
This American Airlines deal was found by Cheapflights users on 3/2. 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.
Tue 3/175:00 am
SPI
- COS
2 stops9h 08m
American Airlines
Mon 3/231:39 pm
COS
- SPI
2 stops8h 53m
American Airlines
Deal found 3/2![American Airlines logo]()
$447
This American Airlines deal was found by Cheapflights users on 3/1. 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 3/243:45 pm
BMI
- COS
1 stop7h 25m
American Airlines
Sun 3/294:48 pm
COS
- BMI
1 stop4h 53m
American Airlines
Deal found 3/1![American Airlines logo]()
$448
This United Airlines deal was found by Cheapflights users on 3/1. 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 4/283:20 pm
MLI
- COS
1 stop7h 34m
United Airlines
Sat 5/211:43 am
COS
- MLI
1 stop5h 17m
United Airlines
Deal found 3/1![United Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 3/3. 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.
Tue 6/96:00 am
STL
- COS
1 stop3h 55m
Southwest
Tue 6/165:35 am
COS
- STL
2 stops9h 10m
Southwest
Deal found 3/3![Southwest logo]()
$352
This American Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 4/1211:16 am
BMI
- COS
1 stop25h 36m
American Airlines
Sat 4/1812:22 pm
COS
- BMI
1 stop21h 24m
American Airlines
Deal found 3/5![American Airlines logo]()
$451
This United Airlines deal was found by Cheapflights users on 3/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:35 am
MLI
- COS
1 stop5h 12m
United Airlines
Sat 5/911:43 am
COS
- MLI
1 stop5h 17m
United Airlines
Deal found 3/3![United Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 3/3. 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.
Fri 6/126:45 pm
STL
- COS
1 stop7h 35m
Southwest
Tue 6/167:25 am
COS
- STL
2 stops9h 20m
Southwest
Deal found 3/3![Southwest logo]()
$352
This United Airlines deal was found by Cheapflights users on 3/1. 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 3/177:00 am
ORD
- COS
1 stop6h 28m
United Airlines
Tue 3/311:33 pm
COS
- ORD
1 stop6h 47m
United Airlines
Deal found 3/1![United Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 3/2. 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.
Tue 6/26:00 am
SPI
- COS
1 stop6h 40m
American Airlines
Sat 6/610:45 am
COS
- SPI
2 stops12h 02m
American Airlines
Deal found 3/2![American Airlines logo]()
$459
This Southwest deal was found by Cheapflights users on 3/1. 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.
Sat 3/145:55 am
MDW
- COS
1 stop4h 30m
Southwest
Wed 3/1811:50 am
COS
- MDW
1 stop7h 35m
Southwest
Deal found 3/1![Southwest logo]()
$359
Last-minute flights from Illinois to Colorado SpringsDiscover last-minute flight deals from Illinois to Colorado Springs. Data last updated March 6, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Colorado Springs. Data last updated March 6, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 3/312:12 pm
STL
- COS
1 stop8h 53m
Delta
Wed 4/18:15 am
COS
- STL
1 stop7h 52m
Delta
Deal found 3/4![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 3/3. 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.
Tue 3/318:10 am
MDW
- COS
2 stops8h 30m
Southwest
Tue 4/76:30 am
COS
- MDW
2 stops7h 25m
Southwest
Deal found 3/3![Southwest logo]()
$221
This Southwest deal was found by Cheapflights users on 3/3. 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 4/15:50 pm
MDW
- COS
1 stop6h 45m
Southwest
Wed 4/84:05 pm
COS
- MDW
1 stop4h 25m
Southwest
Deal found 3/3![Southwest logo]()
$211
This Southwest deal was found by Cheapflights users on 3/3. 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 4/16:15 am
ORD
- COS
2 stops13h 00m
Southwest
Wed 4/84:45 pm
COS
- ORD
1 stop6h 10m
Southwest
Deal found 3/3![Southwest logo]()
$222
This Southwest deal was found by Cheapflights users on 3/2. 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 4/211:10 am
MDW
- COS
1 stop5h 55m
Southwest
Tue 4/76:50 pm
COS
- MDW
1 stop9h 35m
Southwest
Deal found 3/2![Southwest logo]()
$229
This United Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 4/47:45 pm
ORD
- COS
Nonstop3h 09m
United Airlines
Tue 4/71:33 pm
COS
- ORD
1 stop5h 41m
United Airlines
Deal found 3/5![United Airlines logo]()
$219
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 4/712:28 pm
STL
- COS
2 stops10h 37m
Delta
Wed 4/81:28 pm
COS
- STL
1 stop6h 38m
Delta
Deal found 3/4![Delta logo]()
$222
This Southwest deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 4/94:15 pm
ORD
- COS
1 stop6h 30m
Southwest
Tue 4/147:05 am
COS
- ORD
2 stops10h 45m
Southwest
Deal found 3/5![Southwest logo]()
$234
This Southwest deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 4/95:30 am
MDW
- COS
2 stops9h 05m
Southwest
Tue 4/1412:40 pm
COS
- MDW
2 stops8h 10m
Southwest
Deal found 3/5![Southwest logo]()
$239
This United Airlines deal was found by Cheapflights users on 3/1. 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.
Mon 4/137:45 pm
ORD
- COS
Nonstop3h 09m
United Airlines
Wed 4/151:33 pm
COS
- ORD
1 stop6h 47m
United Airlines
Deal found 3/1![United Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 3/3. 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.
Tue 4/146:15 am
ORD
- COS
1 stop7h 20m
Southwest
Wed 4/224:45 pm
COS
- ORD
1 stop6h 10m
Southwest
Deal found 3/3![Southwest logo]()
$211
This Southwest deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 4/187:00 am
ORD
- COS
2 stops9h 40m
Southwest
Tue 4/2112:40 pm
COS
- ORD
2 stops10h 15m
Southwest
Deal found 3/4![Southwest logo]()
$239
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 March 6, 2026.
Search for one-way flight options from Illinois to Colorado Springs. Find affordable one-way fares based on user searches. Data last updated March 6, 2026.
This American Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 4/227:12 am
STL
- COS
1 stop6h 37m
American Airlines
Deal found 3/5![American Airlines logo]()
$99
This Southwest deal was found by Cheapflights users on 3/2. 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 4/286:15 am
ORD
- COS
1 stop7h 20m
Southwest
Deal found 3/2![Southwest logo]()
$106
This Delta deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 4/712:47 pm
MDW
- COS
1 stop8h 41m
Delta
Deal found 3/5![Delta logo]()
$106
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 4/73:59 pm
ORD
- COS
2 stops7h 06m
Delta
Deal found 3/4![Delta logo]()
$111
This American Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/229:53 am
ORD
- COS
Nonstop2h 59m
American Airlines
Deal found 3/6![American Airlines logo]()
$114
This Southwest deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” 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 4/222:30 pm
STL
- COS
2 stops6h 45m
Southwest
Deal found 3/5![Southwest logo]()
$114
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 4/222:25 pm
ORD
- COS
1 stop6h 55m
Delta
Deal found 3/4![Delta logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:15 am
MDW
- COS
2 stops32h 37m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$117
This Southwest deal was found by Cheapflights users on 3/2. 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.
Sun 4/196:55 am
MDW
- COS
1 stop5h 05m
Southwest
Deal found 3/2![Southwest logo]()
$120
This Southwest deal was found by Cheapflights users on 3/1. 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.
Mon 3/306:25 pm
MDW
- COS
1 stop6h 55m
Southwest
Deal found 3/1![Southwest logo]()
$124
This Southwest deal was found by Cheapflights users on 3/3. 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.
Fri 4/34:15 pm
ORD
- COS
1 stop6h 35m
Southwest
Deal found 3/3![Southwest logo]()
$125
This Southwest deal was found by Cheapflights users on 3/2. 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 5/16:00 am
MDW
- COS
1 stop4h 20m
Southwest
Deal found 3/2![Southwest logo]()
$125
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 March 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $211 (Southwest) |
One-way from | $106 (Southwest) |
Popular in | December |
Cheapest in | October |
Average price | $226 |
Good round-trip deal | $305 or less |
Good one-way deal | $128 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 March 6, 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
Tue 5/12
2:10 pm-8:15 pm
1 stop7h 05m
Colorado Springs
Tue 5/19
1:10 pm-11:20 pm
1 stop9h 10m
$211
BloomingtonColorado Springs
BMI - COS
BMICOS
Bloomington-Normal
Wed 8/12
4:00 pm-9:15 pm
1 stop6h 15m
Colorado Springs
Wed 8/19
1:40 pm-10:22 pm
1 stop7h 42m
$229
ChicagoColorado Springs
MDW - COS
MDWCOS
Chicago Midway
Thu 4/9
5:30 am-1:35 pm
2 stops9h 05m
Colorado Springs
Tue 4/14
2:30 pm-8:20 pm
1 stop4h 50m
$234
ChicagoColorado Springs
MDW - COS
MDWCOS
Chicago Midway
Thu 4/9
5:30 am-10:00 am
1 stop5h 30m
Colorado Springs
Mon 4/13
8:00 pm-5:00 am
2 stops8h 00m
$252
Quickest round-trip
ChicagoColorado Springs
ORD - COS
ORDCOS
Chicago O'Hare Intl
Fri 5/29
9:06 am-11:10 am
Nonstop3h 04m
Colorado Springs
Mon 6/1
12:16 pm-4:02 pm
Nonstop2h 46m
$253
St. LouisColorado Springs
STL - COS
STLCOS
Lambert-St Louis
Tue 5/12
6:00 am-12:48 pm
1 stop7h 48m
Colorado Springs
Sat 5/16
8:15 am-9:29 pm
2 stops12h 14m
$257
PeoriaColorado Springs
PIA - COS
PIACOS
Greater Peoria
Tue 3/24
5:22 pm-10:10 pm
1 stop5h 48m
Colorado Springs
Mon 3/30
4:48 pm-10:58 pm
1 stop5h 10m
$269
St. LouisColorado Springs
STL - COS
STLCOS
Lambert-St Louis
Fri 5/1
5:15 pm-10:15 pm
1 stop6h 00m
Colorado Springs
Tue 5/5
9:10 am-5:55 pm
2 stops7h 45m
$270
ChicagoColorado Springs
MDW - COS
MDWCOS
Chicago Midway
Fri 5/29
3:40 pm-11:50 pm
1 stop9h 10m
Colorado Springs
Mon 6/1
8:00 pm-5:25 am
1 stop8h 25m
$274
St. LouisColorado Springs
STL - COS
STLCOS
Lambert-St Louis
Wed 3/25
6:10 am-10:05 am
1 stop4h 55m
Colorado Springs
Wed 3/25
1:30 pm-9:25 pm
1 stop6h 55m
$287
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.
STL-COS
ORD-COS
MDW-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
STL-COS
ORD-COS
MDW-COS
BMI-COS
What is the cheapest month to book a flight from Illinois to Colorado Springs?
Currently, September is the cheapest month in which you can book a flight from Illinois to Colorado Springs (average of $48). Flying from Illinois to Colorado Springs in July is currently the most expensive (average of $114). 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 March 6, 2026.
A simple way to save on the total cost of your ticket is to fly from Illinois to Colorado Springs at noon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the evening.
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.
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 March 6, 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 March 6, 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 3 airlines flying from Illinois to Colorado Springs
Discover the top 3 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 March 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$191 | Average$375 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$241 | Average$337 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$250 | Average$424 | FlexibilityNo cancel fee | On-time69% |