Flight schedule from Washington DC (IAD) to San Antonio (SAT)
Select a travel date in the flight schedule for the route from Washington DC (IAD) to San Antonio (SAT) and compare affordable flight deals.
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durationstopovers
- Aug 30 – Sep 5, 2026
- September 6 – 12, 2026
- September 13 – 19, 2026
- IADSAT1 stopover
- IADSATnonstop
- IADSATnonstop
Tips and tricks to help you find cheap flights from Washington DC to San Antonio
Favorite airline: United Airlines
The favorite airline for flights from Washington DC to San Antonio is United Airlines.
United Airlines
73 %
Delta
18 %
American Airlines
5 %
Important flight information
Frequently Asked Questions (FAQ)
A nonstop flight from Washington DC to San Antonio typically takes around 3 hours 51 minutes. If you choose a connecting flight, allow more travel time. Typical one-stop itineraries take around 17 hours 25 minutes. For the quickest trip, a nonstop flight is usually the most comfortable choice.
Yes, there are nonstop flights from Washington DC to San Antonio, although not necessarily every day. On average, around 11 to 12 flights per week are available. If you have flexibility with your travel dates, you will have an easier time finding a suitable nonstop connection.
Direct flights from Washington DC to San Antonio are operated by, among others, United Airlines. Connecting flights with one stop are also available, for example with Alaska Airlines (via Seattle-Tacoma) and American Airlines (via Dallas). If travel time matters to you, a direct flight is usually the most convenient option. Connecting flights often give you more choice of departure times and airlines.
Nonstop flights from Washington DC to San Antonio operate daily. The schedule may vary by season, so it is worth comparing several travel dates. If your preferred day does not have a nonstop flight, nearby departure days or short connecting flights may be a good alternative.
On the route from Washington DC to San Antonio, there are on average around 1 to 2 flights per day. The number of flights can vary by day of the week and season. If you are flexible with your dates, it is worth comparing several departure days.
On the route from Washington DC to San Antonio, there are around 11 to 12 flights per week. The number of flights can vary depending on the season and day of the week. If you have flexibility, it is worth looking at several departure days.
The earliest nonstop flight from Washington DC to San Antonio usually departs at 8:25 AM. The exact departure time may vary by day of the week and airline. Early flights are especially useful if you want to make the most of your arrival day in San Antonio.
The last nonstop flight from Washington DC to San Antonio usually departs at 5:15 PM. Late flights can be convenient if you want to travel after work or in the evening. Do check whether it is a nonstop flight, as a connecting itinerary could push the arrival time significantly later.