$86+ Cheap flights from Chicago (CHI) to Colorado
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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DEN
Apr 14 — Apr 211
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Colorado with Cheapflights
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Cheapest flights from Chicago to ColoradoExplore the most affordable flight options available from Chicago to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.
Explore the most affordable flight options available from Chicago to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/83:29 pm
ORD
- DEN
Nonstop3h 08m
Frontier
Wed 4/1511:00 am
DEN
- ORD
1 stop24h 13m
Frontier
Deal found 3/10![Frontier logo]()
$155
This Frontier deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/102:29 pm
ORD
- DEN
Nonstop3h 11m
Frontier
Sat 4/119:00 pm
DEN
- ORD
Nonstop2h 38m
Frontier
Deal found 3/11![Frontier logo]()
$156
This Cheapflightsfares deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/84:28 pm
ORD
- DEN
1 stop7h 35m
Frontier
Mon 5/119:06 pm
DEN
- ORD
1 stop17h 11m
Frontier
Deal found 3/14![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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.
Tue 5/56:00 am
MDW
- DEN
1 stop9h 04m
Frontier
Tue 5/127:00 am
DEN
- MDW
1 stop6h 12m
Frontier
Deal found 3/13![Frontier logo]()
$160
This Cheapflightsfares deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:53 pm
ORD
- DEN
Nonstop3h 08m
Frontier
Mon 4/611:59 pm
DEN
- ORD
1 stop9h 45m
Frontier
Deal found 3/15![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” 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 4/164:15 pm
MDW
- DEN
1 stop7h 34m
Frontier
Sat 4/181:09 pm
DEN
- MDW
1 stop8h 05m
Frontier
Deal found 3/11![Frontier logo]()
$161
This Super.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/89:42 pm
ORD
- DEN
Nonstop3h 10m
Frontier
Sun 5/104:59 pm
DEN
- ORD
Nonstop2h 38m
Frontier
Deal found 3/13![Frontier logo]()
$161
This Frontier deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:05 am
ORD
- DEN
Nonstop2h 57m
Frontier
Sat 8/159:59 am
DEN
- ORD
Nonstop2h 38m
Frontier
Deal found 3/14![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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.
Tue 4/286:10 am
MDW
- DEN
1 stop7h 04m
Frontier
Tue 5/57:00 am
DEN
- MDW
1 stop6h 12m
Frontier
Deal found 3/14![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” 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.
Tue 5/1211:51 am
ORD
- DEN
1 stop11h 33m
Multiple Airlines
Mon 5/1811:54 pm
DEN
- ORD
1 stop7h 01m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$164
This Frontier deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/59:42 pm
ORD
- DEN
Nonstop3h 10m
Frontier
Tue 6/99:59 am
DEN
- ORD
Nonstop2h 38m
Frontier
Deal found 3/13![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:15 pm
MDW
- DEN
1 stop9h 14m
Frontier
Wed 4/221:09 pm
DEN
- MDW
1 stop8h 05m
Frontier
Deal found 3/12![Frontier logo]()
$166
Best flights from Chicago to ColoradoDiscover carefully curated flight deals from Chicago to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 15, 2026.
Discover carefully curated flight deals from Chicago to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 15, 2026.
This Southwest deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” 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 4/2910:10 am
MDW
- DEN
Nonstop2h 40m
Southwest
Thu 5/76:35 am
DEN
- MDW
Nonstop2h 20m
Southwest
Deal found 3/11![Southwest logo]()
$193
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/910:04 pm
ORD
- DEN
Nonstop2h 55m
United Airlines
Sun 4/128:52 pm
DEN
- ORD
Nonstop2h 38m
United Airlines
Deal found 3/12![United Airlines logo]()
$223
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/101:10 pm
MDW
- DEN
1 stop5h 07m
Delta
Tue 4/1410:43 am
DEN
- MDW
1 stop6h 53m
Delta
Deal found 3/10![Delta logo]()
$231
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/1510:30 am
ORD
- DEN
Nonstop2h 45m
Southwest
Wed 4/226:30 am
DEN
- ORD
1 stop6h 25m
Southwest
Deal found 3/12![Southwest logo]()
$195
This American Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/66:10 am
ORD
- MTJ
1 stop6h 24m
American Airlines
Fri 4/1012:37 pm
MTJ
- ORD
1 stop20h 02m
American Airlines
Deal found 3/12![American Airlines logo]()
$435
This Southwest deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” 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 4/306:00 am
MDW
- DEN
Nonstop2h 40m
Southwest
Mon 5/46:35 am
DEN
- MDW
Nonstop2h 20m
Southwest
Deal found 3/11![Southwest logo]()
$201
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/49:50 am
ORD
- DEN
1 stop8h 27m
Delta
Tue 4/712:35 am
DEN
- ORD
1 stop7h 35m
Delta
Deal found 3/12![Delta logo]()
$233
This United Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 5/225:00 am
ORD
- DEN
Nonstop2h 42m
United Airlines
Sun 5/243:01 pm
DEN
- ORD
Nonstop2h 45m
United Airlines
Deal found 3/10![United Airlines logo]()
$245
This Southwest deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/87:45 am
ORD
- DEN
2 stops8h 20m
Southwest
Wed 4/154:25 pm
DEN
- ORD
1 stop6h 30m
Southwest
Deal found 3/10![Southwest logo]()
$210
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 5/136:30 am
MDW
- DEN
Nonstop2h 40m
Southwest
Sat 5/165:45 pm
DEN
- MDW
Nonstop2h 35m
Southwest
Deal found 3/13![Southwest logo]()
$215
This United Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 5/249:04 am
ORD
- MTJ
Nonstop3h 39m
United Airlines
Sat 5/3012:31 pm
MTJ
- ORD
Nonstop3h 18m
United Airlines
Deal found 3/10![United Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” 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 5/138:50 pm
MDW
- DEN
Nonstop2h 45m
Southwest
Sun 5/175:55 am
DEN
- MDW
Nonstop2h 25m
Southwest
Deal found 3/11![Southwest logo]()
$215
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 6/95:30 am
MDW
- DEN
Nonstop2h 35m
Southwest
Mon 6/155:55 am
DEN
- MDW
Nonstop2h 25m
Southwest
Deal found 3/12![Southwest logo]()
$215
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/47:00 am
ORD
- GJT
1 stop6h 23m
United Airlines
Thu 4/96:10 pm
GJT
- ORD
1 stop5h 20m
United Airlines
Deal found 3/12![United Airlines logo]()
$304
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 5/510:30 am
ORD
- DEN
Nonstop2h 45m
Southwest
Tue 5/1211:25 am
DEN
- ORD
Nonstop2h 35m
Southwest
Deal found 3/14![Southwest logo]()
$215
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” 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 5/276:00 am
ORD
- ASE
1 stop6h 19m
Delta
Sat 5/308:05 am
ASE
- ORD
2 stops11h 09m
Delta
Deal found 3/11![Delta logo]()
$354
This United Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” 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 4/49:15 am
ORD
- MTJ
Nonstop3h 35m
United Airlines
Wed 4/81:40 pm
MTJ
- ORD
1 stop6h 40m
United Airlines
Deal found 3/11![United Airlines logo]()
$307
This Southwest deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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
- DEN
2 stops8h 30m
Southwest
Sat 5/95:45 am
DEN
- ORD
1 stop7h 45m
Southwest
Deal found 3/10![Southwest logo]()
$218
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 5/205:30 am
ORD
- COS
1 stop8h 18m
Delta
Wed 5/2711:55 am
COS
- ORD
1 stop5h 55m
Delta
Deal found 3/14![Delta logo]()
$367
This Southwest deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/306:00 am
MDW
- DEN
Nonstop2h 40m
Southwest
Sun 5/35:55 am
DEN
- MDW
Nonstop2h 25m
Southwest
Deal found 3/10![Southwest logo]()
$223
This United Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/288:50 am
ORD
- COS
Nonstop3h 07m
United Airlines
Sat 5/211:43 am
COS
- ORD
Nonstop2h 44m
United Airlines
Deal found 3/10![United Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/196:00 am
MDW
- DEN
Nonstop2h 40m
Southwest
Wed 4/228:40 am
DEN
- MDW
2 stops5h 15m
Southwest
Deal found 3/12![Southwest logo]()
$226
This United Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:00 am
ORD
- DRO
1 stop6h 28m
United Airlines
Sat 8/291:30 pm
DRO
- ORD
1 stop7h 12m
United Airlines
Deal found 3/10![United Airlines logo]()
$344
This Southwest deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” 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 4/303:45 pm
ORD
- DEN
2 stops9h 00m
Southwest
Mon 5/47:00 am
DEN
- ORD
1 stop7h 30m
Southwest
Deal found 3/11![Southwest logo]()
$226
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 7/295:00 am
ORD
- DRO
1 stop5h 33m
United Airlines
Tue 8/46:05 pm
DRO
- ORD
1 stop5h 39m
United Airlines
Deal found 3/12![United Airlines logo]()
$348
This Southwest deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/163:45 pm
ORD
- DEN
2 stops9h 00m
Southwest
Mon 4/206:05 am
DEN
- ORD
1 stop6h 10m
Southwest
Deal found 3/10![Southwest logo]()
$226
This United Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” 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 4/102:05 pm
ORD
- EGE
1 stop7h 20m
United Airlines
Fri 4/171:38 pm
EGE
- ORD
1 stop5h 36m
United Airlines
Deal found 3/10![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/412:35 pm
MDW
- DEN
1 stop5h 40m
Southwest
Sat 4/116:30 am
DEN
- MDW
Nonstop2h 20m
Southwest
Deal found 3/13![Southwest logo]()
$231
This United Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 5/227:45 pm
ORD
- ASE
Nonstop3h 15m
United Airlines
Mon 5/259:00 am
ASE
- ORD
Nonstop3h 04m
United Airlines
Deal found 3/14![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/166:00 am
MDW
- DEN
Nonstop2h 40m
Southwest
Mon 4/208:20 pm
DEN
- MDW
Nonstop2h 20m
Southwest
Deal found 3/14![Southwest logo]()
$231
Last-minute flights from Chicago to ColoradoDiscover last-minute flight deals from Chicago to Colorado. Data last updated March 15, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Colorado. Data last updated March 15, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:53 pm
ORD
- DEN
Nonstop3h 08m
Frontier
Mon 4/611:59 pm
DEN
- ORD
1 stop9h 45m
Frontier
Deal found 3/15![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/66:05 pm
ORD
- DEN
1 stop16h 35m
Frontier
Sat 4/119:00 pm
DEN
- ORD
Nonstop2h 38m
Frontier
Deal found 3/12![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” 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.
Tue 4/74:34 pm
ORD
- DEN
1 stop7h 30m
Frontier
Sat 4/181:09 pm
DEN
- ORD
1 stop8h 30m
Frontier
Deal found 3/11![Frontier logo]()
$164
This Cheapflightsfares deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/83:29 pm
ORD
- DEN
Nonstop3h 08m
Frontier
Wed 4/1511:00 am
DEN
- ORD
1 stop24h 13m
Frontier
Deal found 3/10![Frontier logo]()
$155
This Frontier deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/102:29 pm
ORD
- DEN
Nonstop3h 11m
Frontier
Sat 4/119:00 pm
DEN
- ORD
Nonstop2h 38m
Frontier
Deal found 3/11![Frontier logo]()
$156
This Frontier deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/115:53 pm
ORD
- DEN
Nonstop3h 08m
Frontier
Sun 4/191:09 pm
DEN
- ORD
1 stop8h 30m
Frontier
Deal found 3/15![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:34 pm
ORD
- DEN
1 stop7h 30m
Frontier
Tue 4/1411:59 pm
DEN
- ORD
1 stop9h 03m
Frontier
Deal found 3/11![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1511:07 am
ORD
- DEN
1 stop12h 22m
Frontier
Thu 4/165:15 pm
DEN
- ORD
1 stop6h 37m
Frontier
Deal found 3/10![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” 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 4/164:15 pm
MDW
- DEN
1 stop7h 34m
Frontier
Sat 4/181:09 pm
DEN
- MDW
1 stop8h 05m
Frontier
Deal found 3/11![Frontier logo]()
$161
This Cheapflightsfares deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:55 am
ORD
- DEN
Nonstop3h 03m
Frontier
Sun 4/196:10 am
DEN
- ORD
Nonstop2h 35m
Frontier
Deal found 3/13![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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.
Tue 4/286:10 am
MDW
- DEN
1 stop7h 04m
Frontier
Tue 5/57:00 am
DEN
- MDW
1 stop6h 12m
Frontier
Deal found 3/14![Frontier logo]()
$163
This Cheapflightsfares deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:25 am
ORD
- DEN
1 stop9h 51m
Frontier
Sat 5/99:49 am
DEN
- ORD
1 stop19h 01m
Frontier
Deal found 3/14![Frontier logo]()
$159
One-way flights from Chicago to ColoradoSearch for one-way flight options from Chicago to Colorado. Find affordable one-way fares based on user searches. Data last updated March 15, 2026.
Search for one-way flight options from Chicago to Colorado. Find affordable one-way fares based on user searches. Data last updated March 15, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/178:24 pm
ORD
- DEN
1 stop13h 31m
Frontier
Deal found 3/10![Frontier logo]()
$86
This Booking.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/308:25 am
MDW
- DEN
1 stop9h 28m
Frontier
Deal found 3/10![Frontier logo]()
$86
This Vakatrip deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vakatrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:55 am
ORD
- DEN
Nonstop3h 03m
Frontier
Deal found 3/12![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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.
Tue 4/143:27 pm
ORD
- DEN
1 stop18h 23m
Frontier
Deal found 3/15![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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.
Tue 4/142:15 pm
MDW
- DEN
1 stop9h 14m
Frontier
Deal found 3/13![Frontier logo]()
$88
This Super.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1011:55 am
ORD
- DEN
1 stop9h 54m
Frontier
Deal found 3/10![Frontier logo]()
$89
This Super.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:00 am
MDW
- DEN
1 stop7h 09m
Frontier
Deal found 3/12![Frontier logo]()
$89
This Cheapflightsfares deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:30 am
ORD
- DEN
1 stop7h 45m
Frontier
Deal found 3/14![Frontier logo]()
$90
This Frontier deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:00 am
MDW
- DEN
1 stop7h 14m
Frontier
Deal found 3/12![Frontier logo]()
$90
This Gotogate deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:00 am
MDW
- DEN
1 stop7h 09m
Frontier
Deal found 3/12![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/132:29 pm
ORD
- DEN
Nonstop3h 11m
Frontier
Deal found 3/15![Frontier logo]()
$92
This Trip.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:15 pm
MDW
- DEN
1 stop9h 14m
Frontier
Deal found 3/12![Frontier logo]()
$92
Find flight deals from Chicago to Colorado
Keep the following information in mind while searching for Chicago to Colorado flight deals. Data was last updated March 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $151 (Super.com) |
One-way from | $86 (Booking.com) |
Popular in | March |
Cheapest in | October |
Average price | $274 |
Good round-trip deal | $223 or less |
Good one-way deal | $132 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Colorado 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 15, 2026.
Use the filters below to find and compare flights from Chicago to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Wed 4/29
10:10 am-11:50 am
Nonstop2h 40m
Denver Intl
Thu 5/7
6:35 am-9:55 am
Nonstop2h 20m
$193
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Wed 4/15
10:30 am-12:15 pm
Nonstop2h 45m
Denver Intl
Wed 4/22
6:30 am-1:55 pm
1 stop6h 25m
$195
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Thu 4/30
6:00 am-7:40 am
Nonstop2h 40m
Denver Intl
Mon 5/4
6:35 am-9:55 am
Nonstop2h 20m
$201
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Wed 4/8
7:45 am-3:05 pm
2 stops8h 20m
Denver Intl
Wed 4/15
4:25 pm-11:55 pm
1 stop6h 30m
$210
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Wed 5/13
6:30 am-8:10 am
Nonstop2h 40m
Denver Intl
Sat 5/16
5:45 pm-9:20 pm
Nonstop2h 35m
$215
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Wed 5/13
8:50 pm-10:35 pm
Nonstop2h 45m
Denver Intl
Sun 5/17
5:55 am-9:20 am
Nonstop2h 25m
$215
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Tue 6/9
5:30 am-7:05 am
Nonstop2h 35m
Denver Intl
Mon 6/15
5:55 am-9:20 am
Nonstop2h 25m
$215
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Tue 5/5
10:30 am-12:15 pm
Nonstop2h 45m
Denver Intl
Tue 5/12
11:25 am-3:00 pm
Nonstop2h 35m
$215
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Wed 5/6
11:55 am-7:25 pm
2 stops8h 30m
Denver Intl
Sat 5/9
5:45 am-2:30 pm
1 stop7h 45m
$218
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Thu 4/9
10:04 pm-11:59 pm
Nonstop2h 55m
Denver Intl
Sun 4/12
8:52 pm-12:30 am
Nonstop2h 38m
$223
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Chicago to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Chicago with our price prediction graph.
ORD-DEN
MDW-DEN
ORD-COS
ORD-GJT
MDW-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 Chicago to Colorado
CHI-USCO
ORD-DEN
MDW-DEN
ORD-COS
ORD-GJT
What is the cheapest month to book a flight from Chicago to Colorado?
Currently, April is the cheapest month in which you can book a flight from Chicago to Colorado (average of $74). Flying from Chicago to Colorado in February is currently the most expensive (average of $113). 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 CHI to CO?
Find hourly flight availability from Chicago to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 15, 2026.
It’s typically best to fly out from Chicago to Colorado at noon. Doing so could potentially save you 26% on the flight price compared to flying in the evening, which is usually more expensive.
What is the cheapest day to fly from Chicago to Colorado?
Use this chart to determine the cheapest time to fly round-trip from Chicago to Colorado. Price data was last updated on March 12, 2026.
Travelers seeking maximum savings on their Chicago to Colorado flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Chicago to Colorado
Explore weekly flight availability from Chicago to Colorado. 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 March 15, 2026.
The most flights from CHI to USCO are scheduled on a Friday (68 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (27 on average).
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated March 15, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andJetBlue from Chicago to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Overall
8.0
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Chicago to Colorado. 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.
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Alternative routes for Chicago to Colorado
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Chicago to Colorado by cabin class
Find flights from Chicago to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chicago and Colorado flights
Browse other Chicago and Colorado flight options. Last updated on March 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Chicago to Colorado flights
Consider these flights traveling from Chicago to Colorado.
Top 5 airlines flying from Chicago to Colorado
Discover the top 5 airlines that operate flights from Chicago to Colorado. 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 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$67 | Average$166 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$145 | Average$223 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$151 | Average$371 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$156 | Average$409 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$157 | Average$306 | FlexibilityNo cancel fee | On-time63% |