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 48 times a week. With United Airlines running most of the schedule, the shape of a week is predictable, which makes an open premium seat on a given date easy to spot and quick to lose. United Airlines and Frontier Airlines fly the route nonstop in 2LNR's schedule data; the timetable and the reverse direction are below.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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48
Nonstop flights a week
796 mi
Nonstop distance
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Denver to San Antonio flight schedule

Scheduled nonstop departures for DEN to SAT, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Denver (DEN) to San Antonio (SAT)
Date Flight Airline Departs DEN Arrives SAT Duration Aircraft
UA 2625United Airlines09:3512:432h 8m738
UA 1022United Airlines13:4516:552h 10m738
F9 2356Frontier Airlines16:1319:252h 12m321
UA 2819United Airlines17:4020:522h 12m738
UA 4741United Airlines20:3523:572h 22mE7W
UA 395United Airlines20:3923:552h 16m738
F9 3708Frontier Airlines07:0010:122h 12m32N
UA 2625United Airlines09:3512:432h 8m738
UA 1022United Airlines13:4516:552h 10m738
F9 2356Frontier Airlines16:1319:252h 12m321
UA 2819United Airlines17:4020:522h 12m738
UA 4741United Airlines20:3523:572h 22mE7W
UA 395United Airlines20:3923:552h 16m738
F9 3708Frontier Airlines07:0010:122h 12m32N
UA 2625United Airlines09:3512:432h 8m738
UA 1022United Airlines13:4516:552h 10m738
UA 2819United Airlines17:4020:522h 12m738
UA 4741United Airlines20:3523:572h 22mE7W
UA 395United Airlines20:3923:552h 16m738
F9 3708Frontier Airlines07:0010:122h 12m32N
UA 2625United Airlines09:3512:432h 8m738
UA 1022United Airlines13:4416:552h 11m738
UA 2819United Airlines17:4020:522h 12m738
UA 4741United Airlines20:3523:572h 22mE7W
F9 3708Frontier Airlines07:0010:122h 12m32N
UA 2625United Airlines09:3512:432h 8m738
UA 1022United Airlines13:4516:552h 10m738
F9 2356Frontier Airlines16:1319:252h 12m32Q
UA 2819United Airlines17:4020:522h 12m738
UA 4741United Airlines20:3523:572h 22mE7W
UA 395United Airlines20:3923:552h 16m738
F9 3708Frontier Airlines07:0010:122h 12m32N
UA 2625United Airlines09:3512:432h 8m738
UA 1022United Airlines13:4516:552h 10m738
F9 2356Frontier Airlines16:1319:252h 12m32Q
UA 2819United Airlines17:4020:522h 12m738
UA 4741United Airlines20:3523:572h 22mE7W
UA 395United Airlines20:3923:552h 16m738
UA 2625United Airlines09:3512:432h 8m738
UA 1022United Airlines13:4416:552h 11m738

Showing the first 40 of 44 scheduled DEN to SAT departures across the next 7 days with service. 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 has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every DEN to SAT date on the interactive map

The full DEN to SAT nonstop schedule

United Airlines and Frontier Airlines fly the route nonstop in 2LNR's schedule data. 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 real availability

Confirmed upgrade and award seats on each DEN to SAT departure, checked against live inventory so you know what is open before you book.

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

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. 2LNR tracks confirmed upgrade and award space on each of them.

See DEN to SAT on the interactive map →

Frequently asked questions about DEN to SAT

How far is San Antonio from Denver?
DEN to SAT covers about 796 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from DEN to SAT?
United Airlines and Frontier Airlines fly the route nonstop. None of them is a carrier 2LNR reads inventory for, so this page carries the DEN to SAT schedule rather than a space claim.
How many flights a week are there from DEN to SAT?
About 48 nonstop flights a week run between Denver and San Antonio 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 20:39, local time at Denver. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Does 2LNR show upgrade or award space on DEN to SAT?
Not on this route: none of United Airlines and Frontier Airlines is a carrier 2LNR reads inventory for. The page carries the full DEN to SAT nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full DEN to SAT nonstop schedule

Every scheduled departure on this route, with who flies it. On the routes 2LNR does read inventory for, upgrade and award space shows by date, the next 14 days free on every product and the full horizon on Pro.

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