Phoenix (PHX) to Denver (DEN) flights: who flies it

Phoenix to Denver flight schedule

Scheduled nonstop departures for PHX 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 Phoenix (PHX) to Denver (DEN)
Date	Flight	Airline	Departs PHX	Arrives DEN	Duration	Aircraft
Fri, Oct 23	UA 337	United Airlines	06:00	08:55	1h 55m	Boeing 737 MAX 9
Fri, Oct 23	F9 1376	Frontier Airlines	06:15	09:10	1h 55m	Airbus A321neo family
Fri, Oct 23	UA 1599	United Airlines	07:30	10:26	1h 56m	Boeing 737-800
Fri, Oct 23	AA 1332	American Airlines	08:30	11:31	2h 1m	Boeing 737-800
Fri, Oct 23	UA 597	United Airlines	09:10	12:06	1h 56m	Boeing 737-900
Fri, Oct 23	F9 4768	Frontier Airlines	09:15	12:15	2h	Airbus A321neo family
Fri, Oct 23	UA 1615	United Airlines	11:54	14:49	1h 55m	Boeing 737-900
Fri, Oct 23	AA 4104	American Airlines	12:15	15:12	1h 57m	Embraer E175
Fri, Oct 23	UA 709	United Airlines	13:33	16:28	1h 55m	Boeing 737-900
Fri, Oct 23	AA 2602	American Airlines	15:15	18:08	1h 53m	Airbus A320
Fri, Oct 23	F9 2142	Frontier Airlines	15:29	18:24	1h 55m	Airbus A320neo
Fri, Oct 23	UA 280	United Airlines	15:30	18:25	1h 55m	Boeing 737-900
Fri, Oct 23	UA 624	United Airlines	16:29	19:25	1h 56m	Boeing 737 MAX 9
Fri, Oct 23	F9 1820	Frontier Airlines	18:22	21:15	1h 53m	Airbus A321
Fri, Oct 23	UA 1745	United Airlines	18:43	21:39	1h 56m	Boeing 737-900
Fri, Oct 23	AA 1638	American Airlines	19:09	21:59	1h 50m	Airbus A319
Fri, Oct 23	AA 3338	American Airlines	20:35	23:30	1h 55m	Embraer E175
Fri, Oct 23	F9 1748	Frontier Airlines	20:51	23:43	1h 52m	Airbus A321neo family
Sat, Oct 24	UA 337	United Airlines	06:00	08:55	1h 55m	Boeing 737 MAX 9
Sat, Oct 24	F9 1376	Frontier Airlines	06:15	09:10	1h 55m	Airbus A321neo family
Sat, Oct 24	UA 1599	United Airlines	07:30	10:26	1h 56m	Boeing 737-900
Sat, Oct 24	AA 1332	American Airlines	08:30	11:31	2h 1m	Boeing 737-800
Sat, Oct 24	UA 597	United Airlines	09:10	12:06	1h 56m	Boeing 737-900
Sat, Oct 24	F9 4768	Frontier Airlines	09:15	12:15	2h	Airbus A320neo
Sat, Oct 24	F9 1748	Frontier Airlines	12:12	15:03	1h 51m	Airbus A320
Sat, Oct 24	AA 4104	American Airlines	12:15	15:12	1h 57m	Embraer E175
Sat, Oct 24	UA 709	United Airlines	13:33	16:28	1h 55m	Boeing 737-900
Sat, Oct 24	AA 3978	American Airlines	15:15	18:13	1h 58m	Embraer E175
Sat, Oct 24	F9 2142	Frontier Airlines	15:29	18:24	1h 55m	Airbus A320neo
Sat, Oct 24	UA 280	United Airlines	15:30	18:25	1h 55m	Boeing 737-900
Sat, Oct 24	UA 624	United Airlines	16:29	19:25	1h 56m	Boeing 737 MAX 9
Sat, Oct 24	AA 1638	American Airlines	19:09	21:59	1h 50m	Airbus A319
Sat, Oct 24	F9 1820	Frontier Airlines	20:51	23:43	1h 52m	Airbus A321neo family
Sun, Oct 25	UA 337	United Airlines	06:00	08:55	1h 55m	Boeing 737 MAX 9
Sun, Oct 25	F9 1376	Frontier Airlines	06:15	09:10	1h 55m	Airbus A321
Sun, Oct 25	UA 2349	United Airlines	07:10	10:04	1h 54m	Boeing 737-900
Sun, Oct 25	UA 2383	United Airlines	07:10	10:05	1h 55m	Boeing 737-900
Sun, Oct 25	AA 1332	American Airlines	08:30	11:31	2h 1m	Boeing 737-800
Sun, Oct 25	F9 4768	Frontier Airlines	09:15	12:15	2h	Airbus A321neo family
Sun, Oct 25	UA 2680	United Airlines	09:55	12:45	1h 50m	Boeing 737 MAX 9

Showing the first 40 of 138 scheduled PHX 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 PHX to DEN date on the interactive map

Aircraft on the Phoenix to Denver nonstop

In the schedule table on this page, United Airlines flies the Boeing 737-900, the Boeing 737 MAX 9, and the Boeing 737-800. Frontier Airlines flies the Airbus A321neo family, the Airbus A320neo, the Airbus A321, and the Airbus A320. American Airlines flies the Embraer E175, the Boeing 737-800, and the Airbus A319. The Aircraft column has the rest. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on PHX to DEN departures

2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for Phoenix 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 10 of the 14 Phoenix 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 PHX 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 PHX to DEN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Phoenix to Denver nonstop

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

See PHX to DEN on the interactive map →

Frequently asked questions about PHX to DEN

How long is the flight from Phoenix (PHX) to Denver (DEN)?

Scheduled flight times from Phoenix (PHX) to Denver (DEN) run from 1h 50m to 2h 1m across the departures in the schedule table on this page. The nonstop covers about 601 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from PHX to DEN?

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

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

About 150 nonstop flights a week run between Phoenix (PHX) 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 PHX to DEN depart?

Scheduled PHX to DEN nonstops in the next 7 days with service leave between 06:00 and 20:51, local time at Phoenix. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate PHX to DEN nonstop?

The schedule table on this page lists 22 flight numbers for PHX to DEN nonstops, including UA 337, UA 597, UA 709, and UA 1599 on United Airlines; F9 1376 and F9 4768 on Frontier Airlines; and AA 1332 and AA 4104 on American Airlines. The table lists each departure by date with its times and aircraft.

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

Open the PHX 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.