Chicago (ORD) to Denver (DEN) flights: who flies it

Chicago to Denver flight schedule

Scheduled nonstop departures for ORD to DEN starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Chicago (ORD) to Denver (DEN)
Date	Flight	Airline	Departs ORD	Arrives DEN	Duration	Aircraft
Fri, Oct 23	UA 2666	United Airlines	05:00	06:39	2h 39m	Airbus A321neo family
Fri, Oct 23	UA 2806	United Airlines	06:00	07:39	2h 39m	Boeing 737-900
Fri, Oct 23	F9 1483	Frontier Airlines	06:30	08:19	2h 49m	Airbus A321neo family
Fri, Oct 23	AA 4102	American Airlines	06:40	08:33	2h 53m	Embraer E175
Fri, Oct 23	UA 1217	United Airlines	07:00	08:47	2h 47m	Airbus A321neo family
Fri, Oct 23	UA 318	United Airlines	08:40	10:32	2h 52m	Airbus A321neo family
Fri, Oct 23	AA 2363	American Airlines	09:45	11:37	2h 52m	Airbus A319
Fri, Oct 23	UA 2857	United Airlines	10:55	12:45	2h 50m	Airbus A321neo family
Fri, Oct 23	F9 3171	Frontier Airlines	11:06	13:00	2h 54m	Airbus A320
Fri, Oct 23	AA 1277	American Airlines	11:55	13:47	2h 52m	Airbus A319
Fri, Oct 23	UA 2809	United Airlines	12:46	14:32	2h 46m	Airbus A321neo family
Fri, Oct 23	UA 2324	United Airlines	13:30	15:17	2h 47m	Airbus A321neo family
Fri, Oct 23	UA 2803	United Airlines	14:30	16:21	2h 51m	Boeing 737-900
Fri, Oct 23	AA 1317	American Airlines	15:20	17:19	2h 59m	Boeing 737-800
Fri, Oct 23	UA 2769	United Airlines	15:50	17:50	3h	Airbus A321neo family
Fri, Oct 23	UA 1882	United Airlines	16:20	18:20	3h	Airbus A321neo family
Fri, Oct 23	UA 1974	United Airlines	17:51	19:45	2h 54m	Airbus A321neo family
Fri, Oct 23	UA 329	United Airlines	19:50	21:44	2h 54m	Boeing 757-300
Fri, Oct 23	AA 2295	American Airlines	21:00	22:53	2h 53m	Airbus A321
Fri, Oct 23	UA 767	United Airlines	22:00	23:54	2h 54m	Airbus A321neo family
Fri, Oct 23	AA 1387	American Airlines	22:45	00:36	2h 51m	Airbus A321
Sat, Oct 24	UA 2666	United Airlines	05:00	06:39	2h 39m	Airbus A321neo family
Sat, Oct 24	UA 2806	United Airlines	06:00	07:39	2h 39m	Airbus A321neo family
Sat, Oct 24	F9 1483	Frontier Airlines	06:30	08:19	2h 49m	Airbus A321neo family
Sat, Oct 24	AA 4102	American Airlines	06:40	08:33	2h 53m	Embraer E175
Sat, Oct 24	UA 1217	United Airlines	07:00	08:47	2h 47m	Airbus A321neo family
Sat, Oct 24	UA 318	United Airlines	08:40	10:32	2h 52m	Airbus A321neo family
Sat, Oct 24	AA 2363	American Airlines	09:45	11:37	2h 52m	Airbus A319
Sat, Oct 24	UA 2857	United Airlines	10:55	12:45	2h 50m	Airbus A321neo family
Sat, Oct 24	F9 3171	Frontier Airlines	11:06	13:00	2h 54m	Airbus A320
Sat, Oct 24	AA 1277	American Airlines	11:55	13:47	2h 52m	Airbus A319
Sat, Oct 24	UA 2809	United Airlines	12:46	14:32	2h 46m	Airbus A321neo family
Sat, Oct 24	UA 2324	United Airlines	13:30	15:17	2h 47m	Airbus A321neo family
Sat, Oct 24	UA 2803	United Airlines	14:42	16:34	2h 52m	Airbus A321neo family
Sat, Oct 24	AA 1317	American Airlines	15:20	17:19	2h 59m	Boeing 737-800
Sat, Oct 24	UA 2769	United Airlines	15:50	17:50	3h	Airbus A321neo family
Sat, Oct 24	UA 1882	United Airlines	16:20	18:20	3h	Airbus A321neo family
Sat, Oct 24	UA 1974	United Airlines	17:51	19:45	2h 54m	Airbus A321neo family
Sat, Oct 24	UA 329	United Airlines	19:50	21:44	2h 54m	Boeing 757-300
Sat, Oct 24	AA 2295	American Airlines	21:00	22:53	2h 53m	Airbus A321

Showing the first 40 of 159 scheduled ORD to DEN departures across 7 days with service, starting October 23, 2026. Every remaining date is on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every ORD to DEN date on the interactive map

Aircraft on the Chicago to Denver nonstop

In the schedule table on this page, United Airlines flies the Airbus A321neo family, the Boeing 737-900, and the Boeing 757-300. American Airlines flies the Airbus A319, the Airbus A321, the Embraer E175, and the Boeing 737-800. Frontier Airlines flies the Airbus A321neo family and the Airbus A320. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on ORD to DEN departures

2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for Chicago to Denver to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

American Airlines award space was open on 11 of the 14 Chicago to Denver departure dates from October 19 to November 1 that 2LNR checked in the 7 days to October 19, 2026.

See real availability

Confirmed upgrade or award seats by date on the ORD to DEN departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See ORD to DEN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Chicago to Denver nonstop

Carriers operating ORD to DEN nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See ORD to DEN on the interactive map →

Frequently asked questions about ORD to DEN

How long is the flight from Chicago (ORD) to Denver (DEN)?

Scheduled flight times from Chicago (ORD) to Denver (DEN) run from 2h 39m to 3h across the departures in the schedule table on this page. The nonstop covers about 887 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from ORD to DEN?

United Airlines, American Airlines, and Frontier Airlines fly ORD to DEN nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines.

How many flights a week are there from ORD to DEN?

About 168 nonstop flights a week run between Chicago (ORD) and Denver (DEN) in the current schedule, operated by United Airlines, American Airlines, and Frontier Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from ORD to DEN depart?

Scheduled ORD to DEN nonstops in the next 7 days with service leave between 05:00 and 22:45, local time at Chicago. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate ORD to DEN nonstop?

The schedule table on this page lists 21 flight numbers for ORD to DEN nonstops, including UA 318, UA 1217, UA 2666, UA 2806, and UA 2857 on United Airlines; AA 2363 and AA 4102 on American Airlines; and F9 1483 on Frontier Airlines. The table lists each departure by date with its times and aircraft.

How do I check upgrade or award availability on ORD to DEN?

Open the ORD to DEN route on the interactive map or the matrix to see confirmed upgrade and award space by date on American Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.