Cheap Flights from Denver, CO to Chicago, IL from $111

Return flight: Chicago – Denver

On Cheapflightsplus.com you will find 5 direct and 108 connecting flights from Denver to Chicago. You can compare airfare deals from 7 airlines and multiple travel sites from $111, book and save on cheap plane tickets and last minute offers. Also check out DEN-CHI flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Denver to Chicago 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: $111 (one-way), $190 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Denver to Chicago. 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
07:50 — 11:25
07:50 — 11:25 UA1811 United Airlines
Denver — Chicago
2h 35m
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from$112
13:25 — 17:05
13:25 — 17:05 UA617 United Airlines
Denver — Chicago
2h 40m
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from$119
14:44 — 18:24
14:44 — 18:24 UA1023 United Airlines
Denver — Chicago
2h 40m
Find flight
from$119
16:25 — 20:08
16:25 — 20:08 UA250 United Airlines
Denver — Chicago
2h 43m
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from$138
16:25 — 20:08
16:25 — 20:08 UA2200 United Airlines
Denver — Chicago
2h 43m
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from$232
00:23 — 23:31
00:23 — 06:04 F91734 Frontier Airlines
Denver — Orlando
15h 14m stop
21:18 — 23:31 F92791 Frontier Airlines
Orlando — Chicago
22h 8m
including layover
Find flight
from$295
00:23 — 15:06
00:23 — 06:04 F91734 Frontier Airlines
Denver — Orlando
7h 6m stop
13:10 — 15:06 F93853 Frontier Airlines
Orlando — Chicago
13h 43m
including layover
Find flight
from$306
06:00 — 00:25
+1 day
06:00 — 11:34 F92748 Frontier Airlines
Denver — Tampa
10h 43m stop
22:17 — 00:25 F92317 Frontier Airlines
Tampa — Chicago
17h 25m
including layover
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from$295
06:50 — 22:20
06:50 — 10:24 F93206 Frontier Airlines
Denver — Houston
9h 18m stop
19:42 — 22:20 F93282 Frontier Airlines
Houston — Chicago
14h 30m
including layover
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from$306
07:00 — 21:06
07:00 — 07:59 F92015 Frontier Airlines
Denver — Las Vegas
7h 1m stop
15:00 — 21:06 F92146 Frontier Airlines
Las Vegas — Chicago
13h 6m
including layover
Find flight
from$317
08:22 — 23:07
08:22 — 09:52 F92817 Frontier Airlines
Denver — San Diego
6h 52m stop
16:44 — 23:07 F91856 Frontier Airlines
San Diego — Chicago
13h 45m
including layover
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from$295
08:44 — 23:31
09:08 — 14:53 F93312 Frontier Airlines
Denver — Orlando
6h 43m stop
21:57 — 00:04 F92791 Frontier Airlines
Orlando — Chicago
13h 47m
including layover
Find flight
from$111
09:55 — 23:09
09:55 — 15:48 UA2446 United Airlines
Denver — New York
5h 42m stop
21:30 — 23:09 UA2603 United Airlines
New York — Chicago
12h 14m
including layover
Find flight
from$570
10:08 — 17:05
10:06 — 12:38 UA1586 United Airlines
Denver — Omaha
2h 38m stop
15:23 — 17:10 UA739 United Airlines
Omaha — Chicago
5h 57m
including layover
Find flight
from$440
11:20 — 16:10
16:55 — 19:35 KG3919 Aerogaviota
Denver — Watertown
30m stop
12:15 — 13:55 KG3911 Aerogaviota
Watertown — Chicago
3h 50m
including layover
Find flight
from$247
13:39 — 10:25
+1 day
13:39 — 18:55 F93600 Frontier Airlines
Denver — Atlanta
14h 7m stop
09:02 — 10:25 F91441 Frontier Airlines
Atlanta — Chicago
19h 46m
including layover
Find flight
from$279
18:10 — 06:03
+1 day
18:10 — 19:15 F94967 Frontier Airlines
Denver — Las Vegas
5h 19m stop
00:34 — 06:03 NK1053 Spirit Airlines
Las Vegas — Chicago
10h 53m
including layover
Find flight
from$494
20:32 — 12:07
+1 day
20:32 — 22:35 HA4866 Hawaiian Airlines
Denver — Seattle
7h 18m stop
06:00 — 12:07 HA6816 Hawaiian Airlines
Seattle — Chicago
14h 35m
including layover
Find flight
from$192
20:55 — 09:38
+1 day
20:55 — 23:59 UA439 United Airlines
Denver — Minneapolis
8h 1m stop
08:00 — 09:38 UA758 United Airlines
Minneapolis — Chicago
11h 43m
including layover
Find flight
from$199
21:15 — 13:50
+1 day
21:15 — 00:24 F94464 Frontier Airlines
Denver — Dallas
11h 3m stop
11:27 — 13:50 F91888 Frontier Airlines
Dallas — Chicago
15h 35m
including layover
Find flight
from$304
22:29 — 23:07
+1 day
22:29 — 23:52 F92711 Frontier Airlines
Denver — San Diego
16h 52m stop
16:44 — 23:07 F91856 Frontier Airlines
San Diego — Chicago
23h 38m
including layover
Find flight
from$295
23:58 — 19:12
+1 day
23:58 — 05:28 F91114 Frontier Airlines
Denver — Tampa
11h 36m stop
17:04 — 19:12 F91415 Frontier Airlines
Tampa — Chicago
18h 14m
including layover
Find flight
from$295
18:10 — 05:25
+1 day
18:10 — 19:15 F94967 Frontier Airlines
Denver — Las Vegas
2h 22m stop
21:37 — 22:50 NK1657 Spirit Airlines
Las Vegas — Los Angeles
30m stop
23:20 — 05:25 NK1103 Spirit Airlines
Los Angeles — Chicago
10h 15m
including layover
Find flight
from$498
21:15 — 23:27
+1 day
21:15 — 00:24 F94464 Frontier Airlines
Denver — Dallas
15h 3m stop
15:27 — 19:10 NK1697 Spirit Airlines
Dallas — Orlando
2h 9m stop
21:19 — 23:27 NK1369 Spirit Airlines
Orlando — Chicago
25h 12m
including layover
Find flight
from$297
22:29 — 22:46
+1 day
22:29 — 23:24 F94753 Frontier Airlines
Denver — Phoenix
6h 41m stop
06:05 — 07:34 F91061 Frontier Airlines
Phoenix — Los Angeles
8h 50m stop
16:24 — 22:46 F92446 Frontier Airlines
Los Angeles — Chicago
23h 17m
including layover
Find flight
from$366
23:30 — 13:47
+2 days
23:30 — 05:09 F93340 Frontier Airlines
Denver — Philadelphia
24h 21m stop
05:30 — 07:48 F92551 Frontier Airlines
Philadelphia — Atlanta
4h 59m stop
12:47 — 13:47 F92291 Frontier Airlines
Atlanta — Chicago
37h 17m
including layover
Find flight
from$468
*Departure and arrival times - local. Updated on August 16, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Denver to Chicago depends on and how to choose the most interesting flight option for you.

Distance between Denver and Chicago is 1448 miles. Time difference between the cities is 1h. Airplanes depart 00:23 to 23:59 from 2 Denver airports and arrive 00:23 to 23:59 to 7 Chicago airports. Average flight time is 2h 40m.

  • The fastest flight 2h 35m
  • Average flight time 2h 40m
  • The earliest flight 00:23
  • The latest flight 23:59
  • Distance 900 ml

The cheapest months to travel to Chicago are july (from 111 $), august (from 112 $), september (from 119 $).

The most expensive months are may (from 131 $), june (from 126 $), october (from 125 $).

What is the lowest airfare Denver to Chicago?

The cheapest plane ticket found by our users is $111. This airfare is for economy class on one-way F93312 flight by Frontier Airlines for August 8, 2025 which leaves Denver International in Denver at 08:44 am and arrives at Chicago O'Hare International at 23:31.

Economy class
$111
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Business class
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First class
?
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Popular Airlines on the Route

The flight Denver — Chicago is served by 7 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 41 departures per week at the price of from $ 111 . And the most expensive tickets are offered by United Airlines airline - from $ 972.

Direct flights

There are 5 nonstop flights on the route. The fastest direct flight is UA1811 by United Airlines takes 2h 35m and the cheapest is F93312 by Frontier Airlines for $112.

See more direct flights

Connecting Flights

There are 108 flights with layovers on the route. The fastest connecting flight is KG3919 by Aerogaviota takes 3h 50m and the cheapest is F93312 by Frontier Airlines for $111.

  • from $111
    Find
  • from $199
    Find
  • AS - Alaska Airlines
    from $228
    Find
  • SY - Sun Country Airlines
    from $323
    Find
  • HA - Hawaiian Airlines
    from $192
    Find
  • KG - Aerogaviota
    from $247
    Find
  • G4 - Allegiant Air
    from $444
    Find
See more connecting flights

Airports

You can fly from Denver to Chicago from 2 airports (Denver International, Arapahoe Co).

Denver airports

  • Denver International-DEN
    from $111
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  • Arapahoe Co-APA
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Chicago airports

  • O'Hare International-ORD
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  • Midway-MDW
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  • Dupage County-DPA
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  • Chicago FSS-CHI
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  • Merrill C Meigs (closed)-CGX
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  • Pal-Waukee-PWK
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  • Chicago NAS-NOH
    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.

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