Cheap Flights from Chicago, IL to Denver, CO from $90

Return flight: Denver – Chicago
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On Cheapflightsplus.com you will find 3 direct and 27 connecting flights from Chicago to Denver. You can compare airfare deals from 5 airlines and multiple travel sites from $90, 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: $90 (one-way), $154 (round-trip).
Direct flights
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Best Flights from Chicago to Denver Today

Take a look at the list of non stop flights and flights with layovers from Chicago to Denver with the lowest price of $90. The fastest direct flight takes 2h 42m and the fastest connecting – 4h 40m.
Price Departure Arrival Flight Duration Airline Flight
from $69
Find flight
12:35
Chicago
Midway
 14:19
Denver
Denver International
 2h 44m Frontier Airlines
F92209
from $108
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20:10
Chicago
O'Hare International
 22:00
Denver
Denver International
 2h 50m United Airlines
UA2040
from $97
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20:27
Chicago
O'Hare International
 08:28+1 день
Denver
Denver International
 13h 1m
layover
6h 22m - Philadelphia
 Frontier Airlines
F92112
F93339
from $136
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18:17
Chicago
O'Hare International
 11:24+1 день
Denver
Denver International
 18h 7m
layover
14h 21m - Minneapolis
 Sun Country Airlines
SY260
SY1609
Show all tickets
*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on September 09, 2025
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
05:20 — 08:27
+1 day
05:20 — 07:58 F93243 Frontier Airlines
Chicago — Dallas
23h 17m stop
07:15 — 08:27 F92147 Frontier Airlines
Dallas — Denver
28h 7m
including layover
Find flight
from$310
06:00 — 08:27
+1 day
06:00 — 08:33 F91887 Frontier Airlines
Chicago — Dallas
22h 42m stop
07:15 — 08:27 F92147 Frontier Airlines
Dallas — Denver
27h 27m
including layover
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from$180
10:00 — 07:16
+1 day
10:00 — 13:39 NK1113 Spirit Airlines
Chicago — Orlando
7h 49m stop
21:33 — 23:23 G41844 Allegiant Air
Orlando — Fletcher
6h 37m stop
06:00 — 07:16 G4233 Allegiant Air
Fletcher — Denver
22h 16m
including layover
Find flight
from$249
12:35 — 14:19
12:35 — 14:19 F92209 Frontier Airlines
Chicago — Denver
2h 44m
Find flight
from$69
13:04 — 14:46
13:04 — 14:46 UA622 United Airlines
Chicago — Denver
2h 42m
Find flight
from$114
13:11 — 07:16
+1 day
10:31 — 13:09 G41846 Allegiant Air
Chicago — Fletcher
14h 11m stop
06:00 — 07:16 G4233 Allegiant Air
Fletcher — Denver
19h 5m
including layover
Find flight
from$145
14:15 — 10:15
+1 day
14:15 — 16:21 F91829 Frontier Airlines
Chicago — Phoenix
14h 57m stop
07:18 — 10:15 F91376 Frontier Airlines
Phoenix — Denver
21h
including layover
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from$181
16:36 — 07:16
+1 day
16:36 — 20:23 NK1370 Spirit Airlines
Chicago — Orlando
1h 10m stop
21:33 — 23:23 G41844 Allegiant Air
Orlando — Fletcher
6h 37m stop
06:00 — 07:16 G4233 Allegiant Air
Fletcher — Denver
15h 40m
including layover
Find flight
from$221
18:16 — 08:57
+1 day
18:16 — 21:51 F91442 Frontier Airlines
Chicago — Atlanta
9h 49m stop
07:40 — 08:57 F93293 Frontier Airlines
Atlanta — Denver
15h 41m
including layover
Find flight
from$268
18:16 — 21:17
+1 day
18:16 — 21:51 F91442 Frontier Airlines
Chicago — Atlanta
22h 3m stop
19:54 — 21:17 F91449 Frontier Airlines
Atlanta — Denver
28h 1m
including layover
Find flight
from$292
18:17 — 11:24
+1 day
18:15 — 19:55 SY260 Sun Country Airlines
Chicago — Minneapolis
14h 21m stop
15:54 — 17:01 SY1609 Sun Country Airlines
Minneapolis — Denver
18h 7m
including layover
Find flight
from$136
19:03 — 16:07
+1 day
18:20 — 20:53 NK1117 Spirit Airlines
Chicago — Los Angeles
2h 21m stop
23:55 — 05:36 SY430 Sun Country Airlines
Los Angeles — Minneapolis
9h 24m stop
15:12 — 16:23 SY655 Sun Country Airlines
Minneapolis — Denver
22h 4m
including layover
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from$249
20:10 — 22:00
20:10 — 22:00 UA2040 United Airlines
Chicago — Denver
2h 50m
Find flight
from$108
20:27 — 08:28
+1 day
19:04 — 22:30 F92112 Frontier Airlines
Chicago — Philadelphia
6h 22m stop
06:15 — 08:29 F93339 Frontier Airlines
Philadelphia — Denver
13h 1m
including layover
Find flight
from$97
21:50 — 06:40
+1 day
21:50 — 23:28 UA2627 United Airlines
Chicago — Minneapolis
6h 2m stop
05:30 — 06:40 UA2041 United Airlines
Minneapolis — Denver
9h 50m
including layover
Find flight
from$217
*Departure and arrival times - local. Updated on September 9, 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 05:01 to 21:50 from 7 Chicago airports and arrive 05:01 to 21:50 to 2 Denver airports. Average flight time is 2h 44m.

  • The fastest flight 2h 42m
  • Average flight time 2h 44m
  • The earliest flight 05:01
  • The latest flight 21:50
  • Distance 900 ml

Popular Airlines on the Route

The flight Chicago — Denver is served by 5 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 8 departures per week at the price of from $ 69 . And the most expensive tickets are offered by United Airlines airline - from $ 825.

Direct flights

There are 3 nonstop flights on the route. The fastest direct flight is UA622 by United Airlines takes 2h 42m.

  • F9 - Frontier Airlines
    from $69
    Find
  • UA - United Airlines
    from $108
    Find
See more direct flights

Connecting Flights

There are 27 flights with layovers on the route. The fastest connecting flight is UA1872 by United Airlines takes 4h 40m.

  • F9 - Frontier Airlines
    from $97
    Find
  • SY - Sun Country Airlines
    from $136
    Find
  • UA - United Airlines
    from $217
    Find
  • G4 - Allegiant Air
    from $145
    Find
  • NK - Spirit Airlines
    from $221
    Find
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 $97
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  • Midway-MDW
    from $69
    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

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

You may also consider searching for discounted plane tickets to some other popular places from Chicago within United States.

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.

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.

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