Denver (DEN) to San Antonio (SAT) flights
3 airlines fly nonstop from Denver (DEN) to San Antonio (SAT): Frontier Airlines, Southwest Airlines and United Airlines. The two airports are 795 miles (1,280 km) apart. United Airlines is in Star Alliance. There are also 14 ways to fly it with one stop, through Colorado Springs, Dallas and Dallas and more.
Airlines flying nonstop from DEN to SAT
- Frontier AirlinesNot in an allianceWho books it
- Southwest AirlinesNot in an allianceWho books it
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book DEN to SAT with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
DEN to SAT with one stop
14 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Colorado Springs (COS)Southwest Airlines the whole way
- Via Dallas (DFW)American Airlines the whole way
- Via Dallas (DAL)Southwest Airlines the whole way
- Via Houston (IAH)United Airlines the whole way
- Via El Paso (ELP)Southwest Airlines the whole way
- Via Houston (HOU)Southwest Airlines the whole way
- Via Kansas City (MCI)Southwest Airlines the whole way+1
- Via Monterrey (MTY)VivaAerobus the whole way
- Via Phoenix (PHX)American Airlines, Frontier Airlines and 1 more the whole way+1
- Via Salt Lake City (SLC)Delta Air Lines the whole way
+1 - Via Memphis (MEM)Frontier Airlines, United Airlines and 1 more, then Breeze Airways
- Via Saint Louis (STL)Southwest Airlines the whole way
- Via New Orleans (MSY)Southwest Airlines the whole way
- Via Las Vegas (LAS)Frontier Airlines and Southwest Airlines the whole way
DEN to SAT: common questions
Which airlines fly nonstop from DEN to SAT?
Frontier Airlines, Southwest Airlines and United Airlines (Star Alliance) fly nonstop from Denver (DEN) to San Antonio (SAT).
How far is Denver from San Antonio by plane?
Denver (DEN) and San Antonio (SAT) are 795 miles (1,280 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book DEN to SAT award flights?
13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, JetBlue TrueBlue, Lufthansa Miles & More and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does DEN to SAT cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for DEN to SAT with taxes and fees.
Where can I connect between Denver and San Antonio?
The most direct connections are through Colorado Springs (COS), Dallas (DFW), Dallas (DAL), Houston (IAH) and El Paso (ELP). On 13 of them the same airline flies both flights, for example Southwest Airlines through Colorado Springs.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.