Flights Denver → Chicago

One way · Economy · 1 adult · price per person · next 14 days from September 10, 2026

Last observed price on Aviasales for 9 of 15 dates; the lowest is $146. Prices are not guaranteed and are confirmed at booking time.

Last observed price by date

Date	Last observed price	Flight	Departure	Arrival	Stops
Thu, Sep 10	$317	United Airlines UA1055	6:18 PM Denver (DEN)	10:00 PM O'Hare (ORD)	Direct
Fri, Sep 11	$336	United Airlines UA1050	4:00 PM Denver (DEN)	7:40 PM O'Hare (ORD)	Direct
Sat, Sep 12	$298	United Airlines UA2258	7:10 PM Denver (DEN)	10:45 PM O'Hare (ORD)	Direct
Sun, Sep 13	$178	Frontier Airlines F93174	8:55 PM Denver (DEN)	12:23 AM (+1) O'Hare (ORD)	Direct
Mon, Sep 14	$178	Frontier Airlines F91484	7:45 AM Denver (DEN)	11:21 AM O'Hare (ORD)	Direct
Tue, Sep 15	$146lowest	Frontier Airlines F93206 (1st of 2 flights)	6:09 AM Denver (DEN)	2:17 PM O'Hare (ORD)	1 stop · Houston Bush Intercontinental
Wed, Sep 16	$146lowest	Frontier Airlines F93206 (1st of 2 flights)	6:09 AM Denver (DEN)	2:17 PM O'Hare (ORD)	1 stop · Houston Bush Intercontinental
Thu, Sep 17	—	—	—	—	—
Fri, Sep 18	$146lowest	Frontier Airlines F94464 (1st of 2 flights)	4:11 PM Denver (DEN)	12:45 AM (+1) O'Hare (ORD)	1 stop · Dallas/Fort Worth
Sat, Sep 19	$146lowest	Frontier Airlines F93206 (1st of 2 flights)	6:09 AM Denver (DEN)	2:17 PM O'Hare (ORD)	1 stop · Houston Bush Intercontinental
Sun, Sep 20	—	—	—	—	—
Mon, Sep 21	—	—	—	—	—
Tue, Sep 22	—	—	—	—	—
Wed, Sep 23	—	—	—	—	—
Thu, Sep 24	—	—	—	—	—

Price not guaranteed: it is confirmed on Aviasales at booking time. How it works

Denver, United States (DEN, city code)

Denver International (DEN).

Chicago, United States (CHI, city code)

Chicago O'Hare (ORD), Chicago Midway (MDW).

FromToDeparture date