Cheap Flights from Chicago, IL to Denver, CO from $18

Return flight: Denver – Chicago

On Cheapflightsplus.com you will find 11 direct and 2 connecting flights from Chicago to Denver. You can compare airfare deals from 5 airlines and multiple travel sites from $18, 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: $18 (one-way), $31 (round-trip).
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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
06:30 — 08:24
06:30 — 08:24 F9411 Frontier Airlines
Chicago — Denver
2h 54m
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from$18
08:50 — 10:35
08:50 — 10:35 UA2465 United Airlines
Chicago — Denver
2h 45m
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from$37
09:00 — 10:56
09:00 — 10:56 AA1148 American Airlines
Chicago — Denver
2h 56m
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from$29
10:44 — 12:28
10:44 — 12:28 UA2395 United Airlines
Chicago — Denver
2h 44m
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from$37
13:27 — 15:19
13:27 — 15:19 AA1194 American Airlines
Chicago — Denver
2h 52m
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from$80
14:45 — 16:32
14:45 — 16:32 UA407 United Airlines
Chicago — Denver
2h 47m
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from$37
15:19 — 17:14
15:19 — 17:14 F9413 Frontier Airlines
Chicago — Denver
2h 55m
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from$18
16:45 — 18:34
16:45 — 18:34 UA1821 United Airlines
Chicago — Denver
2h 49m
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from$37
19:15 — 21:13
19:15 — 21:13 AA1387 American Airlines
Chicago — Denver
2h 58m
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from$29
19:56 — 21:49
19:56 — 21:49 UA2485 United Airlines
Chicago — Denver
2h 53m
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from$37
20:10 — 21:50
20:10 — 21:50 WN1969 Southwest Airlines
Chicago — Denver
2h 40m
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from$52
19:59 — 07:13
+1 day
19:59 — 22:34 NK903 Spirit Airlines
Chicago — Dallas
7h 26m stop
06:00 — 07:13 F9265 Frontier Airlines
Dallas — Denver
12h 14m
including layover
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from$40
20:59 — 09:10
+1 day
20:59 — 23:15 F91419 Frontier Airlines
Chicago — Las Vegas
7h stop
06:15 — 09:10 F9770 Frontier Airlines
Las Vegas — Denver
13h 11m
including layover
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from$147
*Departure and arrival times - local. Updated on April 25, 2024

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 06:30 to 20:59 from 7 Chicago airports and arrive 06:30 to 20:59 to 2 Denver airports. Average flight time is 2h 52m.

  • The fastest flight 2h 40m
  • Average flight time 2h 52m
  • The earliest flight 06:30
  • The latest flight 20:59
  • Distance 900 ml

What is the lowest airfare Chicago to Denver?

The cheapest plane ticket found by our users is $18. This airfare is for economy class on one-way F9411 flight by Frontier Airlines for February 15, 2021 which leaves O'Hare International in Chicago at 06:30 am and arrives at Denver Denver International at 08:24.

Economy class
$18
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Business class
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First class
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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 American Airlines - 3 departures per week at the price of from $ 29 . And the most expensive tickets are offered by Frontier Airlines airline - from $ 147.

Direct flights

There are 11 nonstop flights on the route. The fastest direct flight is WN1969 by Southwest Airlines takes 2h 40m and the cheapest is F9411 by Frontier Airlines for $18.

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Connecting Flights

There are 2 flights with layovers on the route. The fastest connecting flight is NK903 by Spirit Airlines takes 12h 14m and the cheapest is F9411 by Frontier Airlines for $40.

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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 $18
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  • Midway-MDW
    from $52
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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
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Denver airports

  • Denver International-DEN
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  • Arapahoe Co-APA
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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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