San Antonio to Denver (SAT–DEN) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
SAT–DEN is served by 4 airlines with nonstop service. United Airlines, Southwest Airlines and Frontier lead the route. The flight covers 795 miles in approximately 2h 4m. Beyond nonstop, 112 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AC | 36 | 320, 738 | 2h16-2h24 | Star Alliance | AC | |
| WN Southwest Airlines | 31 | 737, 738, 73H, 7M8, 7S7 | 2h04-2h20 | – | – | |
| F9 Frontier Also: Y4 | 14 | A20N, A21N | 2h24-2h26 | – | Y4 | |
| DL Delta Air Lines | 1 | – | – | SkyTeam | – |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Denver from San Antonio
| Metric | SAT→DEN | AUS→DEN | GRK→DEN |
|---|---|---|---|
| Distance from SAT | – | 67 mi | 113 mi |
| Nonstop airlines | 4 | 6 | 1 |
| Weekly flights | 95 | 177 | 1 |
| Flight time | 2h 4m | 2h 9m | 1h 48m |
| Departure OTP | 56% | – | – |
Travel Essentials
SAT: CDT · DEN: MDT
When it's 6:00 PM in San Antonio, it's 5:00 PM in Denver.
RTD A Line runs to Denver Union Station (37 min, $10.50) with connections to light rail and bus routes. Taxis have meters; expect $55–65 to downtown.DEN's tent-roof Jeppesen Terminal is a single building; all three concourses connect via the underground automated train. Rental cars are on level 5. For ski resorts, shuttle services depart from Ground Transportation.
Semi-arid with 300+ days of sunshine. Summers are dry and warm (27–34°C) with afternoon thunderstorms that produce dramatic but brief delays. Winters bring cold temperatures (−8 to 5°C) and heavy blizzards that can shut down ground operations.
Spring snowstorms can be heavier than midwinter ones. Altitude (5,430 ft) means low humidity year-round; stay hydrated.
SAT–DEN Quick Facts
Frequently Asked Questions
Flights from SAT to DEN
San Antonio International Airport (SAT) and Denver International Airport (DEN) are connected by nonstop service from Delta Air Lines, Frontier, United Airlines and Southwest Airlines. With 95 weekly departures, this is a heavily served route.
SAT to DEN Flight Duration and Schedule
Nonstop flight time from SAT to DEN ranges from 2 hours 4 minutes to 2 hours 26 minutes. The route covers a distance of 795 miles (1,280 km). There are approximately 95 weekly flights outbound and 84 return, totaling 179 flights per week in both directions.
Connecting Options and Alternatives
112 one-stop connections are available, with the fastest taking approximately 2 hours via APA. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Austin (AUS), Fort Cavazos (GRK) and Corpus Christi (CRP).