Direct (nonstop) flights from Dulles to San Antonio
1 airline flys nonstop from Washington Dulles International (IAD) to San Antonio International (SAT). It's 1,363 miles (2,193 km), about 3h 45m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 27, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Dulles to San Antonio with one stop · direct emits 230 kg CO₂ per passenger
Looking for the return flight?
SAT → IAD: Flights from San Antonio to DullesOther direct flights from Dulles
Direct flights from San Antonio (SAT)
Frequently Asked Questions
How long is the direct flight from Dulles to San Antonio?
A nonstop flight from Dulles (IAD) to San Antonio (SAT) takes approximately 3 hours and 45 minutes. The distance is 1,363 miles (2,193 km).
Which airlines fly nonstop from Dulles to San Antonio?
Just United Airlines.
Is there a nonstop flight from Dulles to San Antonio?
Yes. 1 airline: United Airlines.
How far is Dulles from San Antonio?
The flight distance from Dulles to San Antonio is 1,363 miles (2,193 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from Dulles to San Antonio?
At 3h 45m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Dulles to San Antonio?
Roughly 230 kg CO2 per passenger one-way. That's about the same as driving 1,150 km.
Is the return flight from San Antonio to Dulles also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Dulles to San Antonio?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Washington Dulles International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.