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. Southwest Airlines, United Airlines and Frontier lead the route. The flight covers 795 miles in approximately 1h 11m. Beyond nonstop, 72 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| WN Southwest Airlines | 56 | 737, 738, 73H, 7M8, 7S7, B38M | 1h11-2h20 | – | – | |
| UA United Airlines | 30 | 319, 320, 738, 7M8 | 1h15-2h22 | Star Alliance | – | |
| F9 Frontier | 19 | 321, 32Q, A21N | 1h30-2h24 | – | – | |
| AC Air Canada | 7 | 738 | 2h18 | Star Alliance | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Denver from San Antonio
| Metric | SAT→DEN | AUS→DEN | CRP→DEN |
|---|---|---|---|
| Distance from SAT | – | 67 mi | 135 mi |
| Nonstop airlines | 4 | 5 | 1 |
| Weekly flights | 112 | 220 | 2 |
| Flight time | 1h 11m | 1h 7m | 2h 45m |
| Departure OTP | 69% | – | – |
Travel Essentials
SAT: MDT · DEN: MDT
When it's 6:00 PM in San Antonio, it's 6:00 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 Air Canada, Frontier, United Airlines and Southwest Airlines. With 112 weekly departures, this is a heavily served route.
SAT to DEN Flight Duration and Schedule
Nonstop flight time from SAT to DEN ranges from 1 hours 11 minutes to 2 hours 24 minutes. The route covers a distance of 795 miles (1,280 km). There are approximately 112 weekly flights outbound and 117 return, totaling 229 flights per week in both directions.
Connecting Options and Alternatives
72 one-stop connections are available, with the fastest taking approximately 3 hours via SAF. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Austin (AUS) and Corpus Christi (CRP).