Austin (AUS) to Denver (DEN) flights: who flies it

Austin to Denver flight schedule

Scheduled nonstop departures for AUS 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 Austin (AUS) to Denver (DEN)
Date	Flight	Airline	Departs AUS	Arrives DEN	Duration	Aircraft
Fri, Oct 23	UA 361	United Airlines	05:30	06:53	2h 23m	Boeing 737 MAX 8
Fri, Oct 23	F9 1815	Frontier Airlines	06:15	07:40	2h 25m	Airbus A320
Fri, Oct 23	DL 3876	Delta Air Lines	07:25	09:01	2h 36m	Embraer E175
Fri, Oct 23	UA 595	United Airlines	09:02	10:21	2h 19m	Boeing 737-900
Fri, Oct 23	UA 779	United Airlines	11:06	12:29	2h 23m	Boeing 737 MAX 8
Fri, Oct 23	UA 1541	United Airlines	12:50	14:13	2h 23m	Boeing 737-800
Fri, Oct 23	UA 2447	United Airlines	15:13	16:36	2h 23m	Airbus A319
Fri, Oct 23	DL 3669	Delta Air Lines	18:06	19:41	2h 35m	Embraer E175
Fri, Oct 23	UA 439	United Airlines	18:06	19:40	2h 34m	Boeing 737 MAX 9
Fri, Oct 23	F9 2047	Frontier Airlines	20:21	21:49	2h 28m	Airbus A320neo
Sat, Oct 24	UA 361	United Airlines	05:30	06:53	2h 23m	Boeing 737 MAX 8
Sat, Oct 24	F9 1815	Frontier Airlines	06:15	07:40	2h 25m	Airbus A320
Sat, Oct 24	UA 595	United Airlines	09:02	10:21	2h 19m	Boeing 737-900
Sat, Oct 24	DL 3876	Delta Air Lines	10:30	12:06	2h 36m	Embraer E175
Sat, Oct 24	UA 1541	United Airlines	12:50	14:13	2h 23m	Boeing 737-800
Sat, Oct 24	UA 2447	United Airlines	15:13	16:36	2h 23m	Boeing 737 MAX 9
Sat, Oct 24	F9 2047	Frontier Airlines	20:21	21:49	2h 28m	Airbus A321
Sun, Oct 25	F9 1815	Frontier Airlines	06:15	07:40	2h 25m	Airbus A320
Sun, Oct 25	DL 3876	Delta Air Lines	07:25	09:01	2h 36m	Embraer E175
Sun, Oct 25	UA 476	United Airlines	08:36	10:00	2h 24m	Boeing 737-900
Sun, Oct 25	UA 779	United Airlines	11:06	12:29	2h 23m	Boeing 737 MAX 8
Sun, Oct 25	UA 1541	United Airlines	12:50	14:13	2h 23m	Boeing 737-800
Sun, Oct 25	UA 2447	United Airlines	15:13	16:36	2h 23m	Boeing 737 MAX 9
Sun, Oct 25	DL 3669	Delta Air Lines	18:06	19:41	2h 35m	Embraer E175
Sun, Oct 25	UA 439	United Airlines	18:06	19:40	2h 34m	Boeing 737-800
Sun, Oct 25	F9 2047	Frontier Airlines	20:21	21:49	2h 28m	Airbus A321neo family
Mon, Oct 26	F9 1815	Frontier Airlines	06:15	07:40	2h 25m	Airbus A320
Mon, Oct 26	DL 3876	Delta Air Lines	07:25	09:01	2h 36m	Embraer E175
Mon, Oct 26	UA 476	United Airlines	08:36	10:00	2h 24m	Boeing 737-900
Mon, Oct 26	UA 779	United Airlines	11:06	12:29	2h 23m	Boeing 737 MAX 8
Mon, Oct 26	UA 1541	United Airlines	12:50	14:13	2h 23m	Boeing 737-800
Mon, Oct 26	UA 2447	United Airlines	15:13	16:36	2h 23m	Boeing 737 MAX 9
Mon, Oct 26	UA 439	United Airlines	18:00	19:25	2h 25m	Boeing 737 MAX 9
Mon, Oct 26	DL 3669	Delta Air Lines	18:06	19:41	2h 35m	Embraer E175
Mon, Oct 26	F9 2047	Frontier Airlines	20:21	21:49	2h 28m	Airbus A320neo
Tue, Oct 27	DL 3876	Delta Air Lines	07:25	09:01	2h 36m	Embraer E175
Tue, Oct 27	UA 476	United Airlines	08:36	10:00	2h 24m	Boeing 737-900
Tue, Oct 27	UA 779	United Airlines	11:06	12:29	2h 23m	Boeing 737 MAX 8
Tue, Oct 27	UA 1541	United Airlines	13:00	14:24	2h 24m	Boeing 737-800
Tue, Oct 27	UA 2447	United Airlines	15:13	16:36	2h 23m	Boeing 737 MAX 9

Showing the first 40 of 58 scheduled AUS 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 AUS to DEN date on the interactive map

Aircraft on the Austin to Denver nonstop

In the schedule table on this page, United Airlines flies the Boeing 737 MAX 8, the Boeing 737-800, the Boeing 737 MAX 9, the Boeing 737-900, and the Airbus A319. Frontier Airlines flies the Airbus A320, the Airbus A320neo, the Airbus A321, and the Airbus A321neo family. Delta Air Lines flies the Embraer E175. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on AUS to DEN departures

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

Delta Air Lines award space was open on all 14 Austin 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 AUS 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 AUS to DEN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Austin to Denver nonstop

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

See AUS to DEN on the interactive map →

Frequently asked questions about AUS to DEN

How long is the flight from Austin (AUS) to Denver (DEN)?

Scheduled flight times from Austin (AUS) to Denver (DEN) run from 2h 19m to 2h 36m across the departures in the schedule table on this page. The nonstop covers about 776 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from AUS to DEN?

United Airlines, Delta Air Lines, and Frontier Airlines fly AUS to DEN nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines.

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

About 53 nonstop flights a week run between Austin (AUS) and Denver (DEN) in the current schedule, operated by United Airlines, Delta Air Lines, and Frontier Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from AUS to DEN depart?

Scheduled AUS to DEN nonstops in the next 7 days with service leave between 05:30 and 20:21, local time at Austin. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate AUS to DEN nonstop?

The schedule table on this page lists 11 flight numbers for AUS to DEN nonstops, including UA 439, UA 779, UA 1541, and UA 2447 on United Airlines; DL 3669 and DL 3876 on Delta Air Lines; and F9 1815 and F9 2047 on Frontier Airlines. The table lists each departure by date with its times and aircraft.

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

Open the AUS to DEN route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines, 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.