Washington Dulles International Airport
Dulles, United StatesIAD / KIAD
International hub · 171 direct destinations · 4 runways · longest runway 11,499 ft
81 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
Dulles → San Antonio
IAD
DullesWashington Dulles International Airport
DullesWashington Dulles International AirportSATSan AntonioSan Antonio International Airport
San AntonioSan Antonio International Airport- Distance
- 1,360 mi
- Estimated flight time
- ~3h 15m
San Antonio is currently 1 hour behind Dulles.
Observed nonstop
How often does this route fly?
Frequency
A couple of times a day
On average around 2 flights a day, observed from October 2025 to September 2026.
- 2
- flights per day
- 2
- busiest month · Oct
- 3 hr 9 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 2Jan2026
- 2Feb
- 2Mar
- 2Apr
- 2May
- 2Jun
- 2Jul
- 2Aug
- 2Sep
- 2Oct2025
- 2Nov
- 2Dec
Airlines
Who flies it
United Airlinesall year
Mesa Airlinesall year
Delta Air Linesnow and then
Through the day
Departure times
Local time in Dulles. Most departures between 08:00 and 11:00.
- 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
- 1.9Mon
- 1.7Tue
- 1.8Wed
- 2Thu
- 2.1Fri
- 1.9Sat
- 1.8Sun
Fleet
Aircraft observed
- Boeing 737-700B73725%
- Boeing 737 MAX 9B39M19%
- Boeing 737-900B73915%
- Boeing 737 MAX 8B38M11%
- Embraer 175E75L6%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 2 | 46 |
|
| February 2026 | 2 | 53 |
|
| March 2026 | 2 | 60 |
|
| April 2026 | 2 | 58 |
|
| May 2026 | 2 | 57 |
|
| June 2026 | 2 | 65 |
|
| July 2026 | 2 | 60 |
|
| August 2026 | 2 | 48 |
|
| September 2026 | 2 | 50 |
|
| October 2025 | 2 | 60 |
|
| November 2025 | 2 | 61 |
|
| December 2025 | 2 | 60 |
|
Airlines observed on this route
From observed callsign routes on IAD-SAT - 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 Dulles: 171.
- Direct destinations observed from San Antonio: 68.
The airports on this route
San Antonio International Airport
San Antonio, United StatesSAT / KSAT
Major airport · 68 direct destinations · 3 runways · longest runway 8,504 ft
70 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
DCA SATRonald Reagan Washington National AirportWashington is about 24 mi from Dulles.View route →BWI SATBaltimore/Washington International Thurgood Marshall AirportBaltimore is about 45 mi from Dulles.View route →IAD AUSAustin Bergstrom International AirportAustin is about 66 mi from San Antonio.View route →
About the route from Dulles to San Antonio
The observed direct connection between Washington Dulles International Airport (IAD) and San Antonio International Airport (SAT) covers approximately 1,360 mi. The estimated flight time is around 3h 15m. Delta Air Lines, Mesa Airlines and United Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Dulles from San Antonio by air?
- The great-circle distance between Washington Dulles International Airport and San Antonio International Airport is approximately 1,360 mi.
- How long is the flight from Dulles to San Antonio?
- Based on the distance, the estimated flight time is about 3h 15m. This is an estimate, not a schedule.
- Is there a direct connection from Dulles to San Antonio?
- Yes, a direct connection between IAD and SAT has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Delta Air Lines, Mesa Airlines and United Airlines.
- How often is there a flight from Dulles to San Antonio?
- On average around 2 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 678 observed flights. Mainly United Airlines, Mesa Airlines, Delta Air Lines. That is an observation, not a timetable.
- What is the current time difference between Dulles and San Antonio?
- San Antonio is currently 1 hour behind Dulles.
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.