Cheap Flights from Chicago, IL to Denver, CO from $72

One way Round trip

Adults

Children under 12

Infants under 2 without place

Economy

Business

First

done

Return flight: Denver – Chicago

Page navigation

Price Calendar Cheap Flights Flights Schedule

On Cheapflightsplus.com you will find 29 direct and 476 connecting flights from Chicago to Denver. You can compare airfare deals from 10 airlines and multiple travel sites from $72, 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: $72 (one-way), $123 (round-trip).

Direct flights

Check to choose departure date Check to choose departure date

Check prices for return flight

Find flights

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 $72. The fastest direct flight takes 2h 41m and the fastest connecting – 4h 24m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $72 Find flight	12:35 Chicago Midway	14:19 Denver Denver International	2h 44m	Frontier Airlines	F92209
from $84 Find flight	07:45 Chicago O'Hare International	09:38 Denver Denver International	2h 53m	Frontier Airlines	F93173
from $112 Find flight	05:00 Chicago O'Hare International	06:41 Denver Denver International	2h 41m	United Airlines	UA2666
from $112 Find flight	07:15 Chicago O'Hare International	08:59 Denver Denver International	2h 44m	United Airlines	UA791
from $112 Find flight	08:49 Chicago O'Hare International	10:35 Denver Denver International	2h 46m	United Airlines	UA250
from $114 Find flight	06:00 Chicago O'Hare International	07:41 Denver Denver International	2h 41m	Frontier Airlines	F91483
from $184 Find flight	16:10 Chicago O'Hare International	17:56 Denver Denver International	2h 46m	United Airlines	UA1732
from $212 Find flight	13:15 Chicago O'Hare International	14:57 Denver Denver International	2h 42m	United Airlines	UA1935
from $388 Find flight	14:35 Chicago O'Hare International	16:30 Denver Denver International	2h 55m	United Airlines	UA1588
from $87 Find flight	16:45 Chicago Midway	23:02 Denver Denver International	7h 17m layover 2h 13m - Dallas	Frontier Airlines	F92999 F94463
from $95 Find flight	11:32 Chicago O'Hare International	19:16 Denver Denver International	8h 44m layover 2h 42m - Raleigh	Frontier Airlines	F93352 F92225
from $104 Find flight	20:52 Chicago Midway	08:29+1 день Denver Denver International	12h 37m layover 6h 19m - Philadelphia	Frontier Airlines	F94368 F93339
from $106 Find flight	12:50 Chicago Midway	19:31 Denver Denver International	7h 41m layover 1h 40m - Baltimore	Frontier Airlines	F93088 F92705
from $106 Find flight	20:07 Chicago O'Hare International	03:56+1 день Denver Denver International	8h 49m layover 2h 20m - Las Vegas	Frontier Airlines	F92145 F93844
from $110 Find flight	07:45 Chicago O'Hare International	19:31 Denver Denver International	12h 46m layover 6h 35m - Baltimore	Frontier Airlines	F94064 F92705
from $120 Find flight	13:11 Chicago Midway	07:16+1 день Denver Denver International	19h 5m layover 14h 11m - Fletcher	Allegiant Air	G41846 G4233

Show all tickets

*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on July 30, 2025

Flight Schedule Chicago (Illinois) to Denver (Colorado)

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	Flight Details	Flight Duration	Price
05:00 — 06:41	05:00 — 06:41 UA2666 United Airlines Chicago — Denver	2h 41m	Find flight from$112
06:00 — 07:41	06:00 — 07:41 F91483 Frontier Airlines Chicago — Denver	2h 41m	Find flight from$114
07:10 — 08:58	07:10 — 08:58 UA1131 United Airlines Chicago — Denver	2h 48m	Find flight from$125
07:15 — 08:59	07:15 — 08:59 UA791 United Airlines Chicago — Denver	2h 44m	Find flight from$112
07:45 — 09:38	07:45 — 09:38 F93173 Frontier Airlines Chicago — Denver	2h 53m	Find flight from$84
08:45 — 10:35	08:45 — 10:35 UA1599 United Airlines Chicago — Denver	2h 50m	Find flight from$112
08:49 — 10:35	08:49 — 10:35 UA250 United Airlines Chicago — Denver	2h 46m	Find flight from$112
08:49 — 10:35	08:49 — 10:35 UA2154 United Airlines Chicago — Denver	2h 46m	Find flight from$113
10:44 — 12:29	10:44 — 12:29 UA1803 United Airlines Chicago — Denver	2h 45m	Find flight from$242
12:35 — 14:19	12:35 — 14:19 F92209 Frontier Airlines Chicago — Denver	2h 44m	Find flight from$72
12:55 — 14:37	12:55 — 14:37 UA1484 United Airlines Chicago — Denver	2h 42m	Find flight from$118
12:55 — 14:37	12:55 — 14:37 UA2479 United Airlines Chicago — Denver	2h 42m	Find flight from$120
13:04 — 14:46	13:04 — 14:46 UA622 United Airlines Chicago — Denver	2h 42m	Find flight from$119
13:15 — 14:57	13:15 — 14:57 UA1935 United Airlines Chicago — Denver	2h 42m	Find flight from$212
13:58 — 15:39	13:58 — 15:39 UA503 United Airlines Chicago — Denver	2h 41m	Find flight from$119
14:16 — 16:02	14:16 — 16:02 UA767 United Airlines Chicago — Denver	2h 46m	Find flight from$112
14:35 — 16:30	14:35 — 16:30 UA1588 United Airlines Chicago — Denver	2h 55m	Find flight from$388
14:53 — 16:35	14:53 — 16:35 UA664 United Airlines Chicago — Denver	2h 42m	Find flight from$118
14:53 — 16:35	14:53 — 16:35 UA2048 United Airlines Chicago — Denver	2h 42m	Find flight from$120
16:10 — 17:56	16:10 — 17:56 UA1801 United Airlines Chicago — Denver	2h 46m	Find flight from$112
16:10 — 17:56	16:10 — 17:56 UA1732 United Airlines Chicago — Denver	2h 46m	Find flight from$184
17:55 — 19:50	17:55 — 19:50 UA284 United Airlines Chicago — Denver	2h 55m	Find flight from$388
19:01 — 20:45	19:01 — 20:45 F91227 Frontier Airlines Chicago — Denver	2h 44m	Find flight from$117
20:08 — 21:58	20:08 — 21:58 UA2040 United Airlines Chicago — Denver	2h 50m	Find flight from$112
20:08 — 21:59	20:08 — 21:59 UA1555 United Airlines Chicago — Denver	2h 51m	Find flight from$112
20:10 — 22:00	20:10 — 22:00 UA2394 United Airlines Chicago — Denver	2h 50m	Find flight from$120
21:15 — 23:10	21:15 — 23:10 UA490 United Airlines Chicago — Denver	2h 55m	Find flight from$388
21:32 — 23:18	21:32 — 23:18 UA2296 United Airlines Chicago — Denver	2h 46m	Find flight from$112
21:32 — 23:22	21:32 — 23:22 UA1748 United Airlines Chicago — Denver	2h 50m	Find flight from$120
06:25 — 12:19	06:15 — 08:18 F92329 Frontier Airlines Chicago — Las Vegas 46m stop 09:19 — 12:24 F92016 Frontier Airlines Las Vegas — Denver	6h 54m including layover	Find flight from$128
07:45 — 19:31	07:45 — 10:51 F94064 Frontier Airlines Chicago — Baltimore 6h 35m stop 17:26 — 19:31 F92705 Frontier Airlines Baltimore — Denver	12h 46m including layover	Find flight from$110
11:32 — 19:16	11:32 — 14:37 F93352 Frontier Airlines Chicago — Raleigh 2h 42m stop 17:17 — 19:21 F92225 Frontier Airlines Raleigh — Denver	8h 44m including layover	Find flight from$95
12:50 — 19:31	06:15 — 09:05 F93088 Frontier Airlines Chicago — Baltimore 1h 40m stop 17:58 — 20:18 F92705 Frontier Airlines Baltimore — Denver	7h 41m including layover	Find flight from$106
13:02 — 23:43	19:12 — 23:00 F91416 Frontier Airlines Chicago — Tampa 4h 42m stop 21:39 — 23:56 F93517 Frontier Airlines Tampa — Denver	11h 41m including layover	Find flight from$115
14:58 — 23:02	12:56 — 15:55 F93135 Frontier Airlines Chicago — Houston 3h 14m stop 11:21 — 13:04 F93227 Frontier Airlines Houston — Denver	9h 4m including layover	Find flight from$113
15:25 — 21:21	11:00 — 14:03 F92144 Frontier Airlines Chicago — Atlanta 1h 23m stop 21:28 — 23:06 F91449 Frontier Airlines Atlanta — Denver	6h 56m including layover	Find flight from$118
15:48 — 23:59	13:02 — 16:48 F91416 Frontier Airlines Chicago — Tampa 2h 28m stop 22:33 — 00:49 F92745 Frontier Airlines Tampa — Denver	9h 11m including layover	Find flight from$116
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$87
17:08 — 07:59 +1 day	16:30 — 20:30 F93044 Frontier Airlines Chicago — Orlando 8h 51m stop 06:00 — 08:21 F91733 Frontier Airlines Orlando — Denver	15h 51m including layover	Find flight from$115
17:08 — 23:19 +1 day	17:03 — 21:00 F93044 Frontier Airlines Chicago — Orlando 23h 50m stop 20:59 — 23:31 F93311 Frontier Airlines Orlando — Denver	31h 11m including layover	Find flight from$122
18:50 — 23:43	18:50 — 21:25 F92999 Frontier Airlines Chicago — Dallas 1h stop 22:25 — 23:43 F94069 Frontier Airlines Dallas — Denver	5h 53m including layover	Find flight from$107
18:50 — 06:26 +1 day	18:50 — 21:25 F92999 Frontier Airlines Chicago — Dallas 7h 45m stop 05:10 — 06:26 F92147 Frontier Airlines Dallas — Denver	12h 36m including layover	Find flight from$113
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$106
20:52 — 08:29 +1 day	20:55 — 23:59 F94368 Frontier Airlines Chicago — Philadelphia 6h 19m stop 06:15 — 08:37 F93339 Frontier Airlines Philadelphia — Denver	12h 37m including layover	Find flight from$104
21:50 — 22:45 +1 day	20:07 — 22:39 F92145 Frontier Airlines Chicago — Las Vegas 19h 28m stop 19:35 — 22:37 F94612 Frontier Airlines Las Vegas — Denver	25h 55m including layover	Find flight from$119
22:02 — 04:00 +1 day	20:07 — 22:39 F92145 Frontier Airlines Chicago — Las Vegas 51m stop 00:59 — 03:56 F91994 Frontier Airlines Las Vegas — Denver	6h 58m including layover	Find flight from$113
22:56 — 09:32 +1 day	22:56 — 00:47 F91735 Frontier Airlines Chicago — Phoenix 5h 46m stop 06:33 — 09:32 F91376 Frontier Airlines Phoenix — Denver	11h 36m including layover	Find flight from$113

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on July 30, 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 05:00 to 22:56 from 7 Chicago airports and arrive 05:00 to 22:56 to 2 Denver airports. Average flight time is 2h 46m.

The fastest flight 2h 41m
Average flight time 2h 46m
The earliest flight 05:00
The latest flight 22:56
Distance 900 ml

The cheapest months to travel to Denver are june (from 62 $), august (from 72 $), july (from 77 $).

The most expensive months are april (from 143 $), october (from 118 $), may (from 113 $).

What is the lowest airfare Chicago to Denver?

The cheapest plane ticket found by our users is $72. This airfare is for economy class on one-way F92209 flight by Frontier Airlines for August 15, 2025 which leaves Midway in Chicago at 12:35 am and arrives at Denver Denver International at 14:19.

Economy class

$72

Find

Business class

Find

First class

Find

Popular Airlines on the Route

The flight Chicago — Denver is served by 10 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 69 departures per week at the price of from $ 72 . And the most expensive tickets are offered by Finnair airline - from $ 3312.

Direct flights

There are 29 nonstop flights on the route. The fastest direct flight is UA2666 by United Airlines takes 2h 41m and the cheapest is F92209 by Frontier Airlines for $72.

F9 - Frontier Airlines

from $72

Find
UA - United Airlines

from $112

Find

See more direct flights

Connecting Flights

There are 476 flights with layovers on the route. The fastest connecting flight is UA1139 by United Airlines takes 4h 24m and the cheapest is F92209 by Frontier Airlines for $87.

F9 - Frontier Airlines

from $87

Find
UA - United Airlines

from $182

Find
AS - Alaska Airlines

from $171

Find
EI - Aer Lingus

from $1767

Find
SY - Sun Country Airlines

from $130

Find
AY - Finnair

from $3014

Find
HA - Hawaiian Airlines

from $169

Find
KG - Aerogaviota

from $485

Find
G4 - Allegiant Air

from $120

Find
NK - Spirit Airlines

from $164

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 $84
Find
Midway-MDW

from $72
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 10 airlines that use 3 aircraft brands. They range from huge modern airplanes to small-sized.

Boeing 737-900

from $378

Find
Airbus A320

from $531

Find
Airbus A319

from $623

Find

Top Domestic Destinations from Chicago

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

Chicago — Las Vegas

from $508

Find
Chicago — New York

from $74

Find
Chicago — Atlanta

from $76

Find
Chicago — Orlando

from $62

Find
Chicago — Miami

from $66

Find
Chicago — Dallas

from $70

Find
Chicago — Houston

from $66

Find
Chicago — Boston

from $61

Find
Chicago — Phoenix

from $65

Find
Chicago — Denver

from $61

Find

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.

Chicago — London

from $60

Find
Chicago — Cancun

from $72

Find
Chicago — Toronto

from $73

Find
Chicago — Paris

from $61

Find
Chicago — Rome

from $79

Find
Chicago — Hyderabad

from $73

Find
Chicago — Mexico City

from $76

Find
Chicago — Tokyo

from $60

Find
Chicago — Dublin

from $59

Find
Chicago — Mumbai

from $74

Find

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.
To find a plane ticket, please select dates.