--- title: "Denver (DEN) to San Antonio (SAT) flights: who flies it" description: "United Airlines and Frontier Airlines fly nonstop from DEN to SAT, about 36 flights a week, scheduled at 2h 7m to 2h 23m. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/den-sat" url: "https://2lnr.com/routes/den-sat.md" date_modified: "2026-10-18T05:10:47Z" --- # Denver to San Antonio (DEN-SAT): nonstop flights and who flies them United Airlines and Frontier Airlines fly nonstop between Denver (DEN) and San Antonio (SAT), roughly 36 times a week. The timetable below shows the nonstop scheduled at 2h 7m to 2h 23m for the 796 miles. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See DEN to SAT on the interactive map [Get started free](https://2lnr.com/login) 36 Flights a week, 4-week average 2h 7m to 2h 23m Scheduled flight time 796 mi Nonstop distance Free To get started ## Denver to San Antonio flight schedule Scheduled nonstop departures for DEN to SAT starting October 22, 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 Denver (DEN) to San Antonio (SAT) | Date | Flight | Airline | Departs DEN | Arrives SAT | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | F9 3708 | Frontier Airlines | 08:08 | 11:21 | 2h 13m | [Airbus A320](https://2lnr.com/seatmaps/f9/a320.md) | | Thu, Oct 22 | UA 2625 | United Airlines | 09:49 | 12:58 | 2h 9m | [Airbus A320](https://2lnr.com/seatmaps/ua/a320.md) | | Thu, Oct 22 | UA 1022 | United Airlines | 13:42 | 16:52 | 2h 10m | [Boeing 737-800](https://2lnr.com/seatmaps/ua/737-800.md) | | Thu, Oct 22 | F9 2356 | Frontier Airlines | 16:19 | 19:26 | 2h 7m | [Airbus A321](https://2lnr.com/seatmaps/f9/a321.md) | | Thu, Oct 22 | UA 2819 | United Airlines | 17:30 | 20:42 | 2h 12m | Boeing 737-800 | | Thu, Oct 22 | UA 5598 | United Airlines | 20:35 | 23:58 | 2h 23m | [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md) | | Fri, Oct 23 | F9 3708 | Frontier Airlines | 08:08 | 11:21 | 2h 13m | Airbus A320 | | Fri, Oct 23 | UA 2625 | United Airlines | 09:49 | 12:58 | 2h 9m | Airbus A320 | | Fri, Oct 23 | UA 1022 | United Airlines | 13:42 | 16:52 | 2h 10m | Boeing 737-800 | | Fri, Oct 23 | F9 2356 | Frontier Airlines | 16:19 | 19:26 | 2h 7m | [Airbus A320neo](https://2lnr.com/seatmaps/f9/a320neo.md) | | Fri, Oct 23 | UA 2819 | United Airlines | 17:30 | 20:42 | 2h 12m | Boeing 737-800 | | Fri, Oct 23 | UA 5598 | United Airlines | 20:35 | 23:58 | 2h 23m | Embraer E175 | | Sat, Oct 24 | F9 3708 | Frontier Airlines | 08:08 | 11:21 | 2h 13m | Airbus A320 | | Sat, Oct 24 | UA 2625 | United Airlines | 09:49 | 12:58 | 2h 9m | Airbus A320 | | Sat, Oct 24 | UA 1022 | United Airlines | 13:42 | 16:52 | 2h 10m | Boeing 737-800 | | Sat, Oct 24 | F9 2356 | Frontier Airlines | 16:19 | 19:26 | 2h 7m | [Airbus A321neo family](https://2lnr.com/seatmaps/f9/a321neo.md) | | Sat, Oct 24 | UA 2819 | United Airlines | 17:30 | 20:42 | 2h 12m | Boeing 737-800 | | Sat, Oct 24 | UA 5598 | United Airlines | 20:35 | 23:58 | 2h 23m | Embraer E175 | | Sun, Oct 25 | F9 3708 | Frontier Airlines | 08:08 | 11:21 | 2h 13m | Airbus A320 | | Sun, Oct 25 | UA 1521 | United Airlines | 09:35 | 12:46 | 2h 11m | Boeing 737-800 | | Sun, Oct 25 | UA 1022 | United Airlines | 13:45 | 16:55 | 2h 10m | Boeing 737-800 | | Sun, Oct 25 | F9 2356 | Frontier Airlines | 16:19 | 19:26 | 2h 7m | Airbus A321neo family | | Sun, Oct 25 | UA 2819 | United Airlines | 17:37 | 20:53 | 2h 16m | Boeing 737-800 | | Mon, Oct 26 | F9 3708 | Frontier Airlines | 08:08 | 11:21 | 2h 13m | Airbus A320 | | Mon, Oct 26 | UA 1521 | United Airlines | 09:35 | 12:46 | 2h 11m | Boeing 737-800 | | Mon, Oct 26 | UA 1022 | United Airlines | 13:45 | 16:55 | 2h 10m | Boeing 737-800 | | Mon, Oct 26 | F9 2356 | Frontier Airlines | 16:19 | 19:26 | 2h 7m | Airbus A321neo family | | Mon, Oct 26 | UA 2819 | United Airlines | 17:37 | 20:53 | 2h 16m | Boeing 737-800 | | Tue, Oct 27 | F9 3708 | Frontier Airlines | 07:00 | 10:12 | 2h 12m | Airbus A320 | | Tue, Oct 27 | UA 1521 | United Airlines | 09:35 | 12:46 | 2h 11m | Boeing 737-800 | | Tue, Oct 27 | UA 1022 | United Airlines | 13:42 | 16:52 | 2h 10m | Boeing 737-800 | | Tue, Oct 27 | F9 2356 | Frontier Airlines | 16:06 | 19:25 | 2h 19m | Airbus A320neo | | Tue, Oct 27 | UA 2819 | United Airlines | 17:37 | 20:53 | 2h 16m | Boeing 737-800 | | Wed, Oct 28 | F9 3708 | Frontier Airlines | 07:00 | 10:12 | 2h 12m | Airbus A320 | | Wed, Oct 28 | UA 1521 | United Airlines | 09:35 | 12:46 | 2h 11m | Boeing 737-800 | | Wed, Oct 28 | UA 1022 | United Airlines | 13:42 | 16:52 | 2h 10m | Boeing 737-800 | | Wed, Oct 28 | F9 2356 | Frontier Airlines | 16:06 | 19:25 | 2h 19m | Airbus A321 | | Wed, Oct 28 | UA 2819 | United Airlines | 17:37 | 20:53 | 2h 16m | Boeing 737-800 | Showing all 38 scheduled DEN to SAT departures across 7 days with service, starting October 22, 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 DEN to SAT date on the interactive map ## Aircraft on the Denver to San Antonio nonstop In the schedule table on this page, United Airlines flies the [Boeing 737-800](https://2lnr.com/seatmaps/ua/737-800.md), the [Airbus A320](https://2lnr.com/seatmaps/ua/a320.md), and the [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md), and Frontier Airlines flies the [Airbus A320](https://2lnr.com/seatmaps/f9/a320.md), the [Airbus A321neo family](https://2lnr.com/seatmaps/f9/a321neo.md), the [Airbus A321](https://2lnr.com/seatmaps/f9/a321.md), and the [Airbus A320neo](https://2lnr.com/seatmaps/f9/a320neo.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## The full DEN to SAT nonstop schedule This page carries the full DEN to SAT nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below. ### See the schedule Who operates each DEN to SAT nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See DEN to SAT on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Denver to San Antonio nonstop Carriers operating DEN to SAT nonstop in the current schedule. - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) - [Frontier Airlines (F9) route map](https://2lnr.com/routes/airlines/f9.md)\ [The aircraft F9 flies](https://2lnr.com/seatmaps/f9.md) See DEN to SAT on the interactive map → ## Frequently asked questions about DEN to SAT **How long is the flight from Denver (DEN) to San Antonio (SAT)?** Scheduled flight times from Denver (DEN) to San Antonio (SAT) run from 2h 7m to 2h 23m 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 DEN to SAT?** United Airlines and Frontier Airlines fly DEN to SAT nonstop. 2LNR doesn't show award or upgrade space for any of them on DEN to SAT, so this page carries the schedule rather than a space claim. **How many flights a week are there from DEN to SAT?** About 36 nonstop flights a week run between Denver (DEN) and San Antonio (SAT) 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 DEN to SAT depart?** Scheduled DEN to SAT nonstops in the next 7 days with service leave between 07:00 and 20:35, local time at Denver. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate DEN to SAT nonstop?** In the schedule table on this page, DEN to SAT nonstops fly as UA 1022, UA 1521, UA 2625, UA 2819, and UA 5598 on United Airlines, and F9 2356 and F9 3708 on Frontier Airlines. The table lists each departure by date with its times and aircraft. **Does 2LNR show upgrade or award space on DEN to SAT?** Not on this route: 2LNR doesn't show award or upgrade space for any airline flying DEN to SAT. The page carries the full DEN to SAT nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [SAT to DEN nonstop flights](https://2lnr.com/routes/sat-den.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from Denver (DEN)](https://2lnr.com/routes/den.md), or [every route from San Antonio (SAT)](https://2lnr.com/routes/sat.md). Nonstops from Denver (DEN) to other airports within 150 miles of San Antonio (SAT): - [Denver (DEN) to Austin (AUS)](https://2lnr.com/routes/den-aus.md), 66 miles from SAT - [Denver (DEN) to Corpus Christi (CRP)](https://2lnr.com/routes/den-crp.md), 135 miles from SAT Distances are great-circle between the airports, not driving distance. - [How to plan an upgrade by route](https://2lnr.com/guides/upgrade-strategy.md) ## See the full DEN to SAT nonstop schedule Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)