San Antonio (SAT) to Denver (DEN) flights: who flies it

San Antonio to Denver flight schedule

Scheduled nonstop departures for SAT 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 San Antonio (SAT) to Denver (DEN)
Date	Flight	Airline	Departs SAT	Arrives DEN	Duration	Aircraft
Fri, Oct 23	UA 5397	United Airlines	05:30	06:59	2h 29m	Embraer E175
Fri, Oct 23	UA 2853	United Airlines	09:00	10:20	2h 20m	Boeing 737-800
Fri, Oct 23	F9 3707	Frontier Airlines	12:16	13:41	2h 25m	Airbus A320
Fri, Oct 23	UA 1007	United Airlines	13:17	14:37	2h 20m	Boeing 737 MAX 9
Fri, Oct 23	UA 2479	United Airlines	16:50	18:19	2h 29m	Airbus A320
Fri, Oct 23	F9 2355	Frontier Airlines	20:21	21:49	2h 28m	Airbus A320neo
Sat, Oct 24	UA 5397	United Airlines	05:30	06:59	2h 29m	Embraer E175
Sat, Oct 24	UA 2853	United Airlines	09:00	10:20	2h 20m	Boeing 737-800
Sat, Oct 24	F9 3707	Frontier Airlines	12:16	13:41	2h 25m	Airbus A320
Sat, Oct 24	UA 1007	United Airlines	13:12	14:32	2h 20m	Boeing 737 MAX 9
Sat, Oct 24	UA 2479	United Airlines	16:50	18:19	2h 29m	Airbus A320
Sat, Oct 24	F9 2355	Frontier Airlines	20:21	21:49	2h 28m	Airbus A321
Sun, Oct 25	UA 5234	United Airlines	05:30	06:59	2h 29m	Embraer E175
Sun, Oct 25	UA 2853	United Airlines	08:56	10:15	2h 19m	Boeing 737-800
Sun, Oct 25	F9 3707	Frontier Airlines	12:16	13:41	2h 25m	Airbus A320
Sun, Oct 25	UA 1007	United Airlines	13:17	14:37	2h 20m	Boeing 737 MAX 9
Sun, Oct 25	UA 2479	United Airlines	16:48	18:10	2h 22m	Boeing 737-900
Sun, Oct 25	F9 2355	Frontier Airlines	20:21	21:49	2h 28m	Airbus A321
Mon, Oct 26	UA 2853	United Airlines	08:56	10:15	2h 19m	Boeing 737-800
Mon, Oct 26	F9 3707	Frontier Airlines	12:16	13:41	2h 25m	Airbus A320
Mon, Oct 26	UA 1007	United Airlines	13:17	14:37	2h 20m	Boeing 737 MAX 9
Mon, Oct 26	UA 2479	United Airlines	16:48	18:10	2h 22m	Boeing 737-900
Mon, Oct 26	F9 2355	Frontier Airlines	20:21	21:49	2h 28m	Airbus A321
Tue, Oct 27	UA 2853	United Airlines	08:56	10:15	2h 19m	Boeing 737-800
Tue, Oct 27	F9 3707	Frontier Airlines	11:08	12:33	2h 25m	Airbus A320
Tue, Oct 27	UA 1007	United Airlines	13:17	14:37	2h 20m	Boeing 737 MAX 9
Tue, Oct 27	UA 2479	United Airlines	16:48	18:10	2h 22m	Boeing 737-900
Tue, Oct 27	F9 2355	Frontier Airlines	20:20	21:49	2h 29m	Airbus A320neo
Wed, Oct 28	UA 2853	United Airlines	08:56	10:15	2h 19m	Boeing 737-800
Wed, Oct 28	F9 3707	Frontier Airlines	11:08	12:33	2h 25m	Airbus A320
Wed, Oct 28	UA 1007	United Airlines	13:17	14:37	2h 20m	Boeing 737 MAX 9
Wed, Oct 28	UA 2479	United Airlines	16:48	18:10	2h 22m	Boeing 737-900
Wed, Oct 28	F9 2355	Frontier Airlines	20:20	21:49	2h 29m	Airbus A321
Thu, Oct 29	UA 2853	United Airlines	08:56	10:15	2h 19m	Boeing 737-800
Thu, Oct 29	F9 3707	Frontier Airlines	11:08	12:33	2h 25m	Airbus A320
Thu, Oct 29	UA 1007	United Airlines	13:17	14:37	2h 20m	Boeing 737 MAX 9
Thu, Oct 29	UA 2479	United Airlines	16:48	18:10	2h 22m	Boeing 737-900
Thu, Oct 29	F9 2355	Frontier Airlines	19:56	21:24	2h 28m	Airbus A320neo

Showing all 38 scheduled SAT to DEN departures across 7 days with service, starting October 23, 2026. Later dates are 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 SAT to DEN date on the interactive map

Aircraft on the San Antonio to Denver nonstop

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

The full SAT to DEN nonstop schedule

This page carries the full SAT to DEN nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below.

See the schedule

Who operates each SAT to DEN nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

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

Airlines flying San Antonio to Denver nonstop

Carriers operating SAT to DEN nonstop in the current schedule.

See SAT to DEN on the interactive map →

Frequently asked questions about SAT to DEN

How long is the flight from San Antonio (SAT) to Denver (DEN)?

Scheduled flight times from San Antonio (SAT) to Denver (DEN) run from 2h 19m to 2h 29m across the departures in the schedule table on this page. The nonstop covers about 796 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from SAT to DEN?

United Airlines and Frontier Airlines fly SAT to DEN nonstop. 2LNR doesn't show award or upgrade space for any of them on SAT to DEN, so this page carries the schedule rather than a space claim.

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

About 36 nonstop flights a week run between San Antonio (SAT) and Denver (DEN) in the current schedule, operated by United 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 SAT to DEN depart?

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

Which flights operate SAT to DEN nonstop?

In the schedule table on this page, SAT to DEN nonstops fly as UA 1007, UA 2479, UA 2853, UA 5234, and UA 5397 on United Airlines, and F9 2355 and F9 3707 on Frontier Airlines. The table lists each departure by date with its times and aircraft.

Does 2LNR show upgrade or award space on SAT to DEN?

Not on this route: 2LNR doesn't show award or upgrade space for any airline flying SAT to DEN. The page carries the full SAT to DEN nonstop schedule and who flies each departure, and the reverse direction is linked below.

Flying the other way? See DEN to SAT nonstop flights.

Award seats rather than schedules? See award availability by airline.

Looking beyond this route? See every route from San Antonio (SAT), or every route from Denver (DEN).

Nonstops to Denver (DEN) from other airports within 150 miles of San Antonio (SAT):

Austin (AUS) to Denver (DEN), 66 miles from SAT
Corpus Christi (CRP) to Denver (DEN), 135 miles from SAT

Distances are great-circle between the airports, not driving distance.

How to plan an upgrade by route

San Antonio to Denver (SAT-DEN): nonstop flights and who flies them