San Antonio International Airport
San Antonio, United StatesSAT / KSAT
Major airport · 68 direct destinations · 3 runways · longest runway 8,504 ft
69 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
San Antonio → Denver
SAT
San AntonioSan Antonio International Airport
San AntonioSan Antonio International AirportDENDenverDenver International Airport
DenverDenver International Airport- Distance
- 795 mi
- Estimated flight time
- ~2h 5m
Denver is currently 1 hour behind San Antonio.
Observed nonstop
How often does this route fly?
Frequency
Several times a day
On average around 8 flights a day, observed from October 2025 to September 2026.
- 8
- flights per day
- 9
- busiest month · Mar
- 7
- quietest month · Jan
- 1 hr 52 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 7Jan2026
- 7Feb
- 9Mar
- 8Apr
- 8May
- 9Jun
- 9Jul
- 8Aug
- 8Sep
- 8Oct2025
- 8Nov
- 8Dec
Airlines
Who flies it
Southwest Airlinesall year
United Airlinesall year
Frontier Airlinesall year
SkyWest Airlineswinter
Delta Air Linesspring
Through the day
Departure times
Local time in San Antonio. Most departures between 12:00 and 15:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 8.6Mon
- 7.5Tue
- 7.1Wed
- 8.4Thu
- 8.6Fri
- 8.1Sat
- 7.7Sun
Fleet
Aircraft observed
- Boeing 737-800B73829%
- Boeing 737-700B73719%
- Boeing 737 MAX 8B38M16%
- Airbus A320A32015%
- Airbus A320neoA20N3%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 7 | 214 |
|
| February 2026 | 7 | 184 |
|
| March 2026 | 9 | 285 |
|
| April 2026 | 8 | 230 |
|
| May 2026 | 8 | 233 |
|
| June 2026 | 9 | 258 |
|
| July 2026 | 9 | 277 |
|
| August 2026 | 8 | 230 |
|
| September 2026 | 8 | 241 |
|
| October 2025 | 8 | 250 |
|
| November 2025 | 8 | 235 |
|
| December 2025 | 8 | 247 |
|
Airlines observed on this route
From observed callsign routes on SAT-DEN - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from San Antonio: 68.
- Direct destinations observed from Denver: 203.
The airports on this route
Denver International Airport
Denver, United StatesDEN / KDEN
International hub · 203 direct destinations · 6 runways · longest runway 16,001 ft
53 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from San Antonio to Denver
The observed direct connection between San Antonio International Airport (SAT) and Denver International Airport (DEN) covers approximately 795 mi. The estimated flight time is around 2h 5m. Delta Air Lines, Frontier Airlines, SkyWest Airlines, Southwest Airlines and United Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is San Antonio from Denver by air?
- The great-circle distance between San Antonio International Airport and Denver International Airport is approximately 795 mi.
- How long is the flight from San Antonio to Denver?
- Based on the distance, the estimated flight time is about 2h 5m. This is an estimate, not a schedule.
- Is there a direct connection from San Antonio to Denver?
- Yes, a direct connection between SAT and DEN has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Delta Air Lines, Frontier Airlines, SkyWest Airlines, Southwest Airlines and United Airlines.
- How often is there a flight from San Antonio to Denver?
- On average around 8 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 2,884 observed flights. Mainly Southwest Airlines, United Airlines, Frontier Airlines. That is an observation, not a timetable.
- What is the current time difference between San Antonio and Denver?
- Denver is currently 1 hour behind San Antonio.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.