Nonstop flights from Washington to San Antonio
United Airlines flies this route 1 to 2 times a day.
IADWashington Dulles International
1,361 mi · 12 flights a week
SATSan Antonio International
When they leave
Washington time8:25a6:00pFirst departure 8:25 AM, last 6:00 PM
One morning flight at 8:25 AM, then one evening flight at 6:00 PM.
Every flight
Earliest first
Schedules last checked Sep 19, 2026. Times are local.
Flying from Washington to San Antonio
United Airlines is the only airline flying nonstop from Washington to San Antonio, 1 to 2 times a day on the Boeing 737 and Boeing 737 MAX 8.
There are 1 or 2 flights every day of the week. The first arrival in San Antonio is at 11:00 AM and the last at 8:38 PM. The flight covers 1,361 miles.
Flying back, San Antonio to Washington has 12 nonstop flights a week. Baltimore (BWI) and Ronald Reagan Washington National (DCA) also have nonstop flights to San Antonio, 16 and 7 a week.
Return flights
Every Washington airport
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Find the cheapest day to fly from Washington to San Antonio.
Schedules as of Oct 9, 2026.