$100+ 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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DEN
Jul 16 — Jul 231
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Colorado 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 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 June 16, 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 June 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Wed 8/59:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Wed 8/1212:47 pm
DEN
- ORD
1 stop15h 50m
Frontier
Deal found 6/11![Frontier logo]()
$171
This Southwest deal was found by Cheapflights users on 6/11. 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.
Tue 11/38:50 pm
MDW
- DEN
Nonstop2h 45m
Southwest
Tue 11/102:20 pm
DEN
- MDW
1 stop4h 15m
Southwest
Deal found 6/11![Southwest logo]()
$171
This Frontier deal was found by Cheapflights users on 6/12. 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.
Fri 8/79:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Sat 8/85:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/12![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 8/69:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Mon 8/105:05 am
DEN
- ORD
1 stop9h 55m
Frontier
Deal found 6/11![Frontier logo]()
$173
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Sat 7/115:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/11![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 8/49:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Thu 8/135:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/14![Frontier logo]()
$175
This Frontier deal was found by Cheapflights users on 6/11. 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.
Sat 7/119:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Mon 7/135:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/11![Frontier logo]()
$176
This Southwest deal was found by Cheapflights users on 6/11. 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.
Tue 8/111:55 pm
MDW
- DEN
2 stops6h 55m
Southwest
Wed 8/121:55 pm
DEN
- MDW
1 stop4h 30m
Southwest
Deal found 6/11![Southwest logo]()
$176
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/119:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Thu 8/1310:09 am
DEN
- ORD
1 stop9h 18m
Frontier
Deal found 6/11![Frontier logo]()
$177
This Cheapflightsfares deal was found by Cheapflights users on 6/14. 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 8/199:48 pm
ORD
- DEN
Nonstop3h 06m
Frontier
Sat 8/2210:39 pm
DEN
- ORD
1 stop30h 40m
Frontier
Deal found 6/14![Frontier logo]()
$178
This Frontier deal was found by Cheapflights users on 6/11. 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.
Tue 8/49:28 am
ORD
- DEN
1 stop9h 23m
Frontier
Tue 8/115:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/11![Frontier logo]()
$179
This Frontier deal was found by Cheapflights users on 6/13. 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.
Tue 9/19:48 pm
ORD
- DEN
Nonstop3h 06m
Frontier
Thu 9/310:00 am
DEN
- ORD
1 stop8h 55m
Frontier
Deal found 6/13![Frontier logo]()
$180
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 June 16, 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 June 16, 2026.
This Delta deal was found by Cheapflights users on 6/11. 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.
Mon 8/107:00 am
ORD
- DEN
1 stop7h 45m
Delta
Wed 8/1210:19 am
DEN
- ORD
1 stop4h 58m
Delta
Deal found 6/11![Delta logo]()
$204
This Southwest deal was found by Cheapflights users on 6/13. 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 8/268:55 am
MDW
- DEN
1 stop5h 00m
Southwest
Mon 8/318:25 pm
DEN
- MDW
Nonstop2h 20m
Southwest
Deal found 6/13![Southwest logo]()
$233
This United Airlines deal was found by Cheapflights users on 6/11. 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 10/249:03 am
ORD
- COS
Nonstop2h 52m
United Airlines
Tue 10/279:20 am
COS
- ORD
Nonstop2h 34m
United Airlines
Deal found 6/11![United Airlines logo]()
$247
This American Airlines deal was found by Cheapflights users on 6/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:00 am
ORD
- GJT
1 stop7h 37m
American Airlines
Mon 8/244:42 pm
GJT
- ORD
1 stop6h 36m
American Airlines
Deal found 6/13![American Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 6/11. 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.
Fri 8/2811:22 am
ORD
- DEN
1 stop7h 01m
Delta
Wed 9/26:05 am
DEN
- ORD
1 stop6h 03m
Delta
Deal found 6/11![Delta logo]()
$220
This Southwest deal was found by Cheapflights users on 6/11. 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.
Sat 9/56:50 am
MDW
- DEN
Nonstop2h 30m
Southwest
Tue 9/811:15 am
DEN
- MDW
1 stop4h 45m
Southwest
Deal found 6/11![Southwest logo]()
$238
This Delta deal was found by Cheapflights users on 6/11. 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 7/85:54 pm
ORD
- DEN
1 stop6h 33m
Delta
Tue 7/1412:10 pm
DEN
- ORD
1 stop6h 20m
Delta
Deal found 6/11![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 6/12. 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 8/1111:10 am
MDW
- DEN
1 stop4h 50m
Southwest
Sat 8/1511:10 am
DEN
- MDW
2 stops7h 00m
Southwest
Deal found 6/12![Southwest logo]()
$267
This Delta deal was found by Cheapflights users on 6/12. 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 8/226:00 am
ORD
- DEN
1 stop4h 57m
Delta
Sat 8/296:00 am
DEN
- ORD
1 stop4h 37m
Delta
Deal found 6/12![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 7/95:00 am
ORD
- GJT
1 stop4h 53m
United Airlines
Tue 7/146:10 pm
GJT
- ORD
1 stop5h 34m
United Airlines
Deal found 6/11![United Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 6/10. 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.
Fri 7/175:15 am
MDW
- DEN
Nonstop2h 35m
Southwest
Sat 7/188:20 pm
DEN
- MDW
Nonstop2h 25m
Southwest
Deal found 6/10![Southwest logo]()
$275
This United Airlines deal was found by Cheapflights users on 6/10. 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 10/279:20 am
ORD
- COS
Nonstop2h 58m
United Airlines
Wed 10/2812:50 pm
COS
- ORD
1 stop6h 40m
United Airlines
Deal found 6/10![United Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 7/225:54 pm
ORD
- DEN
1 stop6h 33m
Delta
Sun 7/266:05 am
DEN
- ORD
1 stop5h 58m
Delta
Deal found 6/10![Delta logo]()
$261
This Southwest deal was found by Cheapflights users on 6/14. 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.
Fri 8/710:05 am
MDW
- DEN
1 stop5h 20m
Southwest
Sun 8/96:10 am
DEN
- MDW
Nonstop2h 25m
Southwest
Deal found 6/14![Southwest logo]()
$285
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Fri 8/218:46 am
ORD
- COS
Nonstop2h 47m
United Airlines
Mon 8/2411:55 am
COS
- ORD
Nonstop2h 43m
United Airlines
Deal found 6/12![United Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 6/11. 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.
Mon 8/107:00 am
ORD
- DEN
1 stop7h 45m
Delta
Sat 8/156:05 am
DEN
- ORD
1 stop6h 45m
Delta
Deal found 6/11![Delta logo]()
$275
This American Airlines deal was found by Cheapflights users on 6/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:20 am
ORD
- ASE
1 stop6h 30m
American Airlines
Thu 9/31:54 pm
ASE
- ORD
Nonstop3h 13m
American Airlines
Deal found 6/15![American Airlines logo]()
$411
This Southwest deal was found by Cheapflights users on 6/13. 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.
Thu 7/95:15 am
MDW
- DEN
Nonstop2h 35m
Southwest
Tue 7/146:15 am
DEN
- MDW
Nonstop2h 25m
Southwest
Deal found 6/13![Southwest logo]()
$285
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 10/247:05 am
ORD
- COS
2 stops11h 09m
Delta
Tue 10/276:00 am
COS
- ORD
2 stops9h 49m
Delta
Deal found 6/11![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/49:04 am
ORD
- MTJ
Nonstop3h 39m
United Airlines
Sat 7/113:25 pm
MTJ
- ORD
1 stop6h 24m
United Airlines
Deal found 6/12![United Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 6/11. 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.
Sat 7/1110:15 am
MDW
- DEN
1 stop4h 05m
Southwest
Tue 7/2110:25 am
DEN
- MDW
2 stops5h 35m
Southwest
Deal found 6/11![Southwest logo]()
$286
This Delta deal was found by Cheapflights users on 6/10. 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.
Sat 7/46:30 am
ORD
- DEN
1 stop4h 42m
Delta
Tue 7/76:05 am
DEN
- ORD
1 stop5h 58m
Delta
Deal found 6/10![Delta logo]()
$279
This United Airlines deal was found by Cheapflights users on 6/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/205:00 am
ORD
- COS
1 stop4h 40m
United Airlines
Thu 9/246:03 pm
COS
- ORD
1 stop4h 56m
United Airlines
Deal found 6/15![United Airlines logo]()
$343
This Southwest deal was found by Cheapflights users on 6/14. 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 6/309:05 pm
MDW
- DEN
Nonstop2h 45m
Southwest
Sat 7/46:10 am
DEN
- MDW
Nonstop2h 25m
Southwest
Deal found 6/14![Southwest logo]()
$301
This Delta deal was found by Cheapflights users on 6/14. 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.
Sun 8/238:48 am
ORD
- DEN
1 stop5h 57m
Delta
Fri 8/286:05 am
DEN
- ORD
1 stop6h 03m
Delta
Deal found 6/14![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 6/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:59 am
ORD
- HDN
1 stop6h 19m
United Airlines
Fri 7/173:20 pm
HDN
- ORD
1 stop6h 59m
United Airlines
Deal found 6/15![United Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 6/10. 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 7/99:25 pm
MDW
- DEN
Nonstop2h 45m
Southwest
Wed 7/155:20 pm
DEN
- MDW
Nonstop2h 25m
Southwest
Deal found 6/10![Southwest logo]()
$305
This Delta deal was found by Cheapflights users on 6/11. 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.
Mon 7/205:54 pm
ORD
- DEN
1 stop6h 33m
Delta
Sat 7/256:05 am
DEN
- ORD
1 stop6h 41m
Delta
Deal found 6/11![Delta logo]()
$285
This Southwest deal was found by Cheapflights users on 6/11. 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 7/85:25 pm
MDW
- COS
1 stop7h 25m
Southwest
Tue 7/145:35 am
COS
- MDW
2 stops5h 50m
Southwest
Deal found 6/11![Southwest logo]()
$312
This Delta deal was found by Cheapflights users on 6/12. 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.
Mon 7/205:54 pm
ORD
- DEN
1 stop6h 33m
Delta
Thu 7/2312:59 am
DEN
- ORD
1 stop6h 00m
Delta
Deal found 6/12![Delta logo]()
$285
Last-minute flights from Chicago to ColoradoDiscover last-minute flight deals from Chicago to Colorado. Data last updated June 16, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Colorado. Data last updated June 16, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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.
Wed 7/19:48 pm
ORD
- DEN
Nonstop3h 06m
Frontier
Wed 7/155:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/13![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/79:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Sat 7/115:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/15![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 6/15. 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.
Wed 7/89:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Tue 7/145:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/15![Frontier logo]()
$172
This Super.com deal was found by Cheapflights users on 6/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/89:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Wed 7/155:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/11![Frontier logo]()
$181
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Sat 7/115:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/11![Frontier logo]()
$174
This Frontier deal was found by Cheapflights users on 6/11. 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.
Sat 7/119:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Mon 7/135:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/11![Frontier logo]()
$176
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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.
Tue 7/149:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Fri 7/175:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/13![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Fri 7/179:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Wed 7/225:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/10![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Tue 7/219:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Sat 7/255:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/10![Frontier logo]()
$178
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/219:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Fri 7/245:05 pm
DEN
- ORD
Nonstop2h 47m
Frontier
Deal found 6/11![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Wed 7/299:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Sat 8/85:05 am
DEN
- ORD
1 stop9h 55m
Frontier
Deal found 6/11![Frontier logo]()
$180
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/299:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Tue 8/412:30 pm
DEN
- ORD
1 stop6h 45m
Frontier
Deal found 6/11![Frontier logo]()
$182
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 June 16, 2026.
Search for one-way flight options from Chicago to Colorado. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/13. 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.
Sat 7/119:57 pm
ORD
- DEN
Nonstop3h 00m
Frontier
Deal found 6/13![Frontier logo]()
$100
This Southwest deal was found by Cheapflights users on 6/12. 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 8/118:50 pm
MDW
- DEN
Nonstop2h 35m
Southwest
Deal found 6/12![Southwest logo]()
$103
This United Airlines deal was found by Cheapflights users on 6/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:00 am
ORD
- DEN
Nonstop2h 41m
United Airlines
Deal found 6/13![United Airlines logo]()
$103
This Super.com deal was found by Cheapflights users on 6/12. 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.
Wed 9/97:25 am
MDW
- DEN
1 stop7h 35m
Frontier
Deal found 6/12![Frontier logo]()
$104
This Super.com deal was found by Cheapflights users on 6/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:48 pm
ORD
- DEN
Nonstop3h 06m
Frontier
Deal found 6/11![Frontier logo]()
$104
This Frontier deal was found by Cheapflights users on 6/12. 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.
Wed 8/54:45 pm
MDW
- DEN
1 stop7h 10m
Frontier
Deal found 6/12![Frontier logo]()
$105
This Frontier deal was found by Cheapflights users on 6/12. 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.
Wed 8/121:50 pm
ORD
- DEN
1 stop9h 15m
Frontier
Deal found 6/12![Frontier logo]()
$105
This Delta deal was found by Cheapflights users on 6/11. 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.
Thu 8/271:51 pm
MDW
- DEN
1 stop7h 00m
Delta
Deal found 6/11![Delta logo]()
$106
This deal was found by Cheapflights users on 6/11. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/49:48 pm
ORD
- DEN
Nonstop3h 06m
Frontier
Deal found 6/11![Frontier logo]()
$106
This Southwest deal was found by Cheapflights users on 6/10. 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.
Tue 7/75:30 am
MDW
- DEN
Nonstop2h 35m
Southwest
Deal found 6/10![Southwest logo]()
$109
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 7/225:00 am
ORD
- DEN
Nonstop2h 41m
United Airlines
Deal found 6/11![United Airlines logo]()
$109
This Frontier deal was found by Cheapflights users on 6/12. 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.
Tue 9/812:27 pm
MDW
- DEN
1 stop10h 49m
Frontier
Deal found 6/12![Frontier logo]()
$111
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 June 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $171 (Southwest) |
One-way from | $100 (Kiwi.com) |
Popular in | March |
Cheapest in | October |
Average price | $278 |
Good round-trip deal | $247 or less |
Good one-way deal | $145 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 June 16, 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
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Mon 8/10
7:00 am-1:45 pm
1 stop7h 45m
Denver Intl
Wed 8/12
10:19 am-4:17 pm
1 stop4h 58m
$204
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Fri 8/28
11:22 am-5:23 pm
1 stop7h 01m
Denver Intl
Wed 9/2
6:05 am-1:08 pm
1 stop6h 03m
$220
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Wed 8/26
8:55 am-12:55 pm
1 stop5h 00m
Denver Intl
Mon 8/31
8:25 pm-11:45 pm
Nonstop2h 20m
$233
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Wed 7/8
5:54 pm-11:27 pm
1 stop6h 33m
Denver Intl
Tue 7/14
12:10 pm-7:30 pm
1 stop6h 20m
$237
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Sat 9/5
6:50 am-8:20 am
Nonstop2h 30m
Denver Intl
Tue 9/8
11:15 am-5:00 pm
1 stop4h 45m
$238
ChicagoColorado Springs
ORD - COS
ORDCOS
Chicago O'Hare Intl
Sat 10/24
9:03 am-10:55 am
Nonstop2h 52m
Colorado Springs
Tue 10/27
9:20 am-12:54 pm
Nonstop2h 34m
$247
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Sat 8/22
6:00 am-9:57 am
1 stop4h 57m
Denver Intl
Sat 8/29
6:00 am-11:37 am
1 stop4h 37m
$247
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Wed 7/22
5:54 pm-11:27 pm
1 stop6h 33m
Denver Intl
Sun 7/26
6:05 am-1:03 pm
1 stop5h 58m
$261
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Tue 8/11
11:10 am-3:00 pm
1 stop4h 50m
Denver Intl
Sat 8/15
11:10 am-7:10 pm
2 stops7h 00m
$267
Quickest round-trip
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Fri 7/17
5:15 am-6:50 am
Nonstop2h 35m
Denver Intl
Sat 7/18
8:20 pm-11:45 pm
Nonstop2h 25m
$275
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.
MDW-DEN
ORD-DEN
ORD-GJT
ORD-COS
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
MDW-DEN
ORD-DEN
ORD-GJT
ORD-COS
What is the cheapest month to book a flight from Chicago to Colorado?
Currently, October is the cheapest month in which you can book a flight from Chicago to Colorado (average of $165). Flying from Chicago to Colorado in March is currently the most expensive (average of $332). 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 June 16, 2026.
It’s typically best to fly out from Chicago to Colorado at noon. Doing so could potentially save you 12% on the flight price compared to flying in the evening, which is usually more expensive.
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 June 16, 2026.
The most flights from CHI to USCO are scheduled on a Sunday (76 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (48 on average).
How much does it cost to fly round-trip from Chicago to Colorado?
How far ahead should I book a flight from Chicago to Colorado?
The best time to book flights from Chicago to Colorado is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 June 13, 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.
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 June 16, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andAmerican Airlines 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.
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
7.9
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
7.9
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.
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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 June 16, 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 6 airlines flying from Chicago to Colorado
Discover the top 6 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 June 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$70 | Average$171 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$105 | Average$284 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$145 | Average$223 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$151 | Average$338 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$153 | Average$367 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$166 | Average$407 | FlexibilityNo cancel fee | On-time69% |