Frontier Airlines Chicago to Denver Flights

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Cheapflightsplus.com will find cheap Frontier Airlines flights from Chicago to Denver. Compare airline ticket prices and book air tickets starting from $72 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Frontier Airlines, arrivals and departure details below.

Find Cheap Airfare Chicago (IL) — Denver (CO) by Frontier Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in july: one-way - $72, two-way – $123.

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Cheap Flights from Chicago to Denver by Frontier Airlines

Look at the list of plane tickets for the most popular direct and connecting flights by Frontier Airlines, their prices start from $72. The fastest nonstop flight takes 2h 41m. The fastest connecting flight — 5h 53m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $72 Find flight	12:35 pm Chicago Midway	2:19 pm Denver Denver International	2h 44m	Frontier Airlines	F92209
from $113 Find flight	6:00 am Chicago O'Hare International	7:41 am Denver Denver International	2h 41m	Frontier Airlines	F91483
from $117 Find flight	7:01 pm Chicago Midway	8:45 pm Denver Denver International	2h 44m	Frontier Airlines	F91227
from $87 Find flight	4:45 pm Chicago Midway	11:02 pm Denver Denver International	7h 17m layover 2h 13m - Dallas	Frontier Airlines	F92999 F94463
from $105 Find flight	8:07 pm Chicago O'Hare International	3:56 am+1 день Denver Denver International	8h 49m layover 2h 20m - Las Vegas	Frontier Airlines	F92145 F93844
from $106 Find flight	12:50 pm Chicago Midway	7:31 pm Denver Denver International	7h 41m layover 1h 40m - Baltimore	Frontier Airlines	F93088 F92705
from $110 Find flight	8:27 pm Chicago O'Hare International	8:28 am+1 день Denver Denver International	13h 1m layover 6h 22m - Philadelphia	Frontier Airlines	F92112 F93339
from $110 Find flight	7:45 am Chicago O'Hare International	7:31 pm Denver Denver International	12h 46m layover 6h 35m - Baltimore	Frontier Airlines	F94064 F92705
from $113 Find flight	10:56 pm Chicago Midway	9:32 am+1 день Denver Denver International	11h 36m layover 5h 46m - Phoenix	Frontier Airlines	F91735 F91376
from $115 Find flight	2:20 pm Chicago O'Hare International	11:43 pm Denver Denver International	10h 23m layover 5h 17m - Dallas	Frontier Airlines	F93243 F94069
from $117 Find flight	12:51 pm Chicago Midway	11:16 pm Denver Denver International	11h 25m layover 4h 30m - Orlando	Frontier Airlines	F93854 F93311
from $131 Find flight	6:51 am Chicago O'Hare International	3:17 pm Denver Denver International	9h 26m layover 2h 12m - San Diego	Frontier Airlines	F91855 F94928
from $139 Find flight	8:35 am Chicago Midway	8:02 am+1 день Denver Denver International	24h 27m layover 17h 40m - Orlando	Frontier Airlines	F91458 F91733
from $143 Find flight	2:54 pm Chicago O'Hare International	9:18 pm Denver Denver International	7h 24m layover 1h 31m - Phoenix	Frontier Airlines	F91829 F91820
from $149 Find flight	8:00 am Chicago O'Hare International	7:59 pm Denver Denver International	12h 59m layover 7h 26m - Atlanta	Frontier Airlines	F91596 F91449
from $285 Find flight	9:08 am Chicago O'Hare International	6:41 pm Denver Denver International	10h 33m layover 3h 27m - Orlando	Frontier Airlines	F92792 F91733

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 07/13/2025

Frontier Airlines Flight Schedule Chicago to Denver

Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.

Departure	Flight Details	Flight Time	Price
10:56 pm — 9:32 am +1 day	10:56 pm — 0:47 am F91735 Frontier Airlines Chicago — Phoenix 5h 46m stop 6:33 am — 9:32 am F91376 Frontier Airlines Phoenix — Denver	11h 36m including layover	Find flight from$113
12:35 pm — 2:19 pm	12:35 pm — 2:19 pm F92209 Frontier Airlines Chicago — Denver	2h 44m	Find flight from$72
12:50 pm — 7:31 pm	6:15 am — 9:05 am F93088 Frontier Airlines Chicago — Baltimore 1h 40m stop 5:58 pm — 8:18 pm F92705 Frontier Airlines Baltimore — Denver	7h 41m including layover	Find flight from$106
12:51 pm — 11:16 pm	8:00 am — 11:51 am F93854 Frontier Airlines Chicago — Orlando 4h 30m stop 8:59 pm — 11:20 pm F93311 Frontier Airlines Orlando — Denver	11h 25m including layover	Find flight from$117
2:20 pm — 11:43 pm	11:47 am — 2:37 pm F93243 Frontier Airlines Chicago — Dallas 5h 17m stop 8:06 pm — 9:32 pm F94069 Frontier Airlines Dallas — Denver	10h 23m including layover	Find flight from$115
2:54 pm — 9:18 pm	7:35 am — 9:38 am F91829 Frontier Airlines Chicago — Phoenix 1h 31m stop 1:14 pm — 4:12 pm F91820 Frontier Airlines Phoenix — Denver	7h 24m including layover	Find flight from$143
4:45 pm — 11:02 pm	4:02 pm — 6:55 pm F92999 Frontier Airlines Chicago — Dallas 2h 13m stop 10:15 pm — 11:29 pm F94463 Frontier Airlines Dallas — Denver	7h 17m including layover	Find flight from$87
6:00 am — 7:41 am	6:00 am — 7:41 am F91483 Frontier Airlines Chicago — Denver	2h 41m	Find flight from$113
6:50 pm — 11:43 pm	6:50 pm — 9:25 pm F92999 Frontier Airlines Chicago — Dallas 1h stop 10:25 pm — 11:43 pm F94069 Frontier Airlines Dallas — Denver	5h 53m including layover	Find flight from$107
6:50 pm — 6:26 am +1 day	6:50 pm — 9:25 pm F92999 Frontier Airlines Chicago — Dallas 7h 45m stop 5:10 am — 6:26 am F92147 Frontier Airlines Dallas — Denver	12h 36m including layover	Find flight from$113
6:51 am — 3:17 pm	1:39 pm — 3:59 pm F91855 Frontier Airlines Chicago — San Diego 2h 12m stop 12:05 pm — 3:42 pm F94928 Frontier Airlines San Diego — Denver	9h 26m including layover	Find flight from$131
7:01 pm — 8:45 pm	7:01 pm — 8:45 pm F91227 Frontier Airlines Chicago — Denver	2h 44m	Find flight from$117
7:45 am — 7:31 pm	7:45 am — 10:51 am F94064 Frontier Airlines Chicago — Baltimore 6h 35m stop 5:26 pm — 7:31 pm F92705 Frontier Airlines Baltimore — Denver	12h 46m including layover	Find flight from$110
8:00 am — 7:59 pm	10:02 am — 1:16 pm F91596 Frontier Airlines Chicago — Atlanta 7h 26m stop 9:14 pm — 10:52 pm F91449 Frontier Airlines Atlanta — Denver	12h 59m including layover	Find flight from$149
8:07 pm — 3:56 am +1 day	6:36 pm — 9:00 pm F92145 Frontier Airlines Chicago — Las Vegas 2h 20m stop 3:38 pm — 6:36 pm F93844 Frontier Airlines Las Vegas — Denver	8h 49m including layover	Find flight from$105
8:27 pm — 8:28 am +1 day	7:04 pm — 10:30 pm F92112 Frontier Airlines Chicago — Philadelphia 6h 22m stop 6:15 am — 8:29 am F93339 Frontier Airlines Philadelphia — Denver	13h 1m including layover	Find flight from$110
8:35 am — 8:02 am +1 day	8:35 am — 12:20 pm F91458 Frontier Airlines Chicago — Orlando 17h 40m stop 6:00 am — 8:02 am F91733 Frontier Airlines Orlando — Denver	24h 27m including layover	Find flight from$139
9:08 am — 6:41 pm	9:17 am — 1:11 pm F92792 Frontier Airlines Chicago — Orlando 3h 27m stop 6:00 am — 8:18 am F91733 Frontier Airlines Orlando — Denver	10h 33m including layover	Find flight from$285

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

*Departure and arrival times are local. Last updated on 07/13/2025

Flight Information

There are 3 flights by Frontier Airlines from Chicago to Denver every week with departures from Chicago FSS, Midway, O'Hare International, Chicago NAS, Merrill C Meigs (closed), Dupage County, Pal-Waukee. All flights arrive at Denver International and Arapahoe Co.

Departures start from 10:56 pm to 9:08 am. Nonstop flight is 2h 41m. The time difference between Chicago and Denver is 1h.

The fastest flight 2h 41m
Average flight time 2h 44m
The earliest flight 10:56 pm
The latest flight 9:08 am
Distance 900 ml

The cheapest months for traveling to Denver are june (from 61 $), august (from 72 $), july (from 77 $).

The most expensive and popular months are april (from 142 $), may (from 130 $), september (from 115 $).

The cheapest flight by Frontier Airlines that our users were able to find is $72. This airfare is economy class on one-way F92209 flight for August 15, 2025 leaving Midway in Chicago at 12:35 pm, it includes all taxes and additional fees.

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Frontier Airlines Airplanes on the Route

List of the most popular Frontier Airlines airplanes flying from Chicago to Denver:

Other Popular Airlines on the Route

Besides Frontier Airlines there are other 7 airline carriers between Chicago and Denver. Please review schedules and prices from the most popular airlines to find the best airfare deals from Chicago to Denver.

Nonstop flights

There are 22 direct flights every day from Chicago. Airlines and fares are below:

UA - United Airlines

from $111

Find

See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

UA - United Airlines

from $181

Find
AS - Alaska Airlines

from $170

Find
EI - Aer Lingus

from $1759

Find
SY - Sun Country Airlines

from $130

Find
HA - Hawaiian Airlines

from $169

Find
G4 - Allegiant Air

from $119

Find
NK - Spirit Airlines

from $207

Find

See more connecting flights

How to book an air ticket yourself?

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