Cheap Flights from Chicago, IL to Denver, CO from $85

Return flight: Denver – Chicago

On Cheapflightsplus.com you will find 5 connecting flights from Chicago to Denver. You can compare airfare deals from 2 airlines and multiple travel sites from $85, 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.

Find One-Way and Round-Trip Chicago to Denver Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $85 (one-way), $146 (round-trip).
Direct flights
  • Check to choose departure date Check to choose departure date
Check prices for return flight
Find flights
Full flight schedule will help you in detecting at what time planes fly from Chicago to Denver. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
12:45 — 18:13
12:45 — 14:17 UA1811 United Airlines
Chicago — Minneapolis
2h 39m stop
17:00 — 18:20 UA2272 United Airlines
Minneapolis — Denver
6h 28m
including layover
Find flight
from$366
13:15 — 18:20
13:15 — 16:00 UA2290 United Airlines
Chicago — Dallas
1h 3m stop
17:04 — 18:20 UA2655 United Airlines
Dallas — Denver
6h 5m
including layover
Find flight
from$603
14:25 — 18:13
14:25 — 15:58 UA467 United Airlines
Chicago — Minneapolis
56m stop
17:00 — 18:20 UA2272 United Airlines
Minneapolis — Denver
4h 48m
including layover
Find flight
from$514
16:45 — 23:02
16:02 — 18:55 F92999 Frontier Airlines
Chicago — Dallas
2h 13m stop
22:15 — 23:29 F94463 Frontier Airlines
Dallas — Denver
7h 17m
including layover
Find flight
from$85
20:07 — 03:56
+1 day
18:36 — 21:00 F92145 Frontier Airlines
Chicago — Las Vegas
2h 20m stop
15:38 — 18:36 F93844 Frontier Airlines
Las Vegas — Denver
8h 49m
including layover
Find flight
from$103
*Departure and arrival times - local. Updated on May 6, 2025

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 12:45 to 20:07 from 7 Chicago airports and arrive 12:45 to 20:07 to 2 Denver airports. Average flight time is 6h 28m.

  • The fastest flight 4h 48m
  • Average flight time 6h 28m
  • The earliest flight 12:45
  • The latest flight 20:07
  • Distance 900 ml

The cheapest months to travel to Denver are november (from 85 $), may (from 85 $), december (from 103 $).

The most expensive months are april (from 138 $), december (from 103 $), may (from 85 $).

What is the lowest airfare Chicago to Denver?

The cheapest plane ticket found by our users is $85. This airfare is for economy class on one-way F92999 flight by Frontier Airlines for May 12, 2025 which leaves Midway in Chicago at 16:45 am and arrives at Denver Denver International at 23:02.

Economy class
$85
Find
Business class
?
Find
First class
?
Find

Popular Airlines on the Route

The flight Chicago — Denver is served by 2 regular airlines and 1 low-cost airline. Most of the flights on this route are operated by Frontier Airlines - 2 departures per week at the price of from $ 85 . And the most expensive tickets are offered by United Airlines airline - from $ 603.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 5 flights with layovers on the route. The fastest connecting flight is UA467 by United Airlines takes 4h 48m and the cheapest is F92999 by Frontier Airlines for $85.

See more connecting flights

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-ORD
    from $103
    Find
  • Midway-MDW
    from $85
    Find
  • Dupage County-DPA
    Find
  • Chicago FSS-CHI
    Find
  • Merrill C Meigs (closed)-CGX
    Find
  • Pal-Waukee-PWK
    Find
  • Chicago NAS-NOH
    Find

Denver airports

  • Denver International-DEN
    Find
  • Arapahoe Co-APA
    Find

How to book a plane ticket yourself?

How to book an air 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.

    To find a plane ticket, please select dates.

Back