Cheap Flights from Chicago, IL to Denver, CO from $108
On Cheapflightsplus.com you will find 12 direct and 53 connecting flights from Chicago to Denver. You can compare airfare deals from 5 airlines and multiple travel sites from $108, book and save on cheap plane tickets and last minute offers. Also check out CHI-DEN flight schedule to find best flight time, convenient departure and arrival airports.
Flight Information
Below we will explain in detail what the flights cost on the destination from Chicago to Denver depends on and how to choose the most interesting flight option for you.
Distance between Chicago and Denver is 1448 miles. Time difference between the cities is 1h. Airplanes depart 05:15 to 23:59 from 7 Chicago airports and arrive 05:15 to 23:59 to 2 Denver airports. Average flight time is 2h 49m.
- The fastest flight 2h 41m
- Average flight time 2h 49m
- The earliest flight 05:15
- The latest flight 23:59
- Distance 900 ml
Best Flights from Chicago to Denver Today
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $108 | 21:30 Chicago O'Hare International | 23:15 Denver Denver International | 2h 45m | United Airlines | UA2296 |
| from $110 | 06:00 Chicago O'Hare International | 07:41 Denver Denver International | 2h 41m | Frontier Airlines | F91483 |
| from $185 | 12:30 Chicago Midway | 14:16 Denver Denver International | 2h 46m | Frontier Airlines | F92209 |
| from $125 | 18:20 Chicago O'Hare International | 23:44 Denver Denver International | 6h 24m layover 1h 17m - Dallas | Frontier Airlines | F93241 F94069 |
| from $144 | 13:37 Chicago Midway | 21:28 Denver Denver International | 8h 51m layover 3h 25m - Atlanta | Frontier Airlines | F92780 F91449 |
The cheapest months to travel to Denver are september (from 108 $), december (from 109 $), august (from 109 $).
The most expensive months are november (from 125 $), october (from 114 $), august (from 109 $).
What is the lowest airfare Chicago to Denver?
The cheapest plane ticket found by our users is $108. This airfare is for economy class on one-way UA1801 flight by United Airlines for November 17, 2025 which leaves O'Hare International in Chicago at 15:55 am and arrives at Denver Denver International at 17:45.
Flight Schedule Chicago (Illinois) to Denver (Colorado)
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Popular Airlines on the Route
The flight Chicago — Denver is served by 5 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 32 departures per week at the price of from $ 110 . And the most expensive tickets are offered by United Airlines airline - from $ 844.
Direct flights
There are 12 nonstop flights on the route. The fastest direct flight is F91483 by Frontier Airlines takes 2h 41m and the cheapest is UA1801 by United Airlines for $108.
- F9 - Frontier Airlinesfrom $110Find
- UA - United Airlinesfrom $108Find
Connecting Flights
There are 53 flights with layovers on the route. The fastest connecting flight is UA5642 by United Airlines takes 5h and the cheapest is UA1801 by United Airlines for $125.
- F9 - Frontier Airlinesfrom $125Find
- LF - flynordicfrom $305Find
- Y4 - Volarisfrom $588Find
- UA - United Airlinesfrom $528Find
- NK - Spirit Airlinesfrom $241Find
Airports
You can fly from Chicago to Denver from 7 airports (O'Hare International, Midway, Dupage County, Chicago FSS, Merrill C Meigs (closed), Pal-Waukee, Chicago NAS).
Chicago airports
- O'Hare International-ORDfrom $108Find
- Midway-MDWfrom $125Find
- Dupage County-DPAFind
- Chicago FSS-CHIFind
- Merrill C Meigs (closed)-CGXFind
- Pal-Waukee-PWKFind
- Chicago NAS-NOHFind
Denver airports
- Denver International-DENFind
- Arapahoe Co-APAFind
Airplanes
There are flights to Denver from Chicago by 5 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
Top Domestic Destinations from Chicago
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Top International Destinations from Chicago
Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.
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How to book a plane ticket yourself?
- Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
- Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
- Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
- Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
- That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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