Direct (nonstop) flights from San Antonio to Dulles
1 airline flys nonstop from San Antonio International (SAT) to Washington Dulles International (IAD). It's 1,363 miles (2,193 km), about 3h 21m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 31, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from San Antonio to Dulles with one stop · direct emits 230 kg CO₂ per passenger
Looking for the return flight?
IAD → SAT: Flights from Dulles to San AntonioOther direct flights from San Antonio
Direct flights from Dulles (IAD)
Frequently Asked Questions
How long is the direct flight from San Antonio to Dulles?
A nonstop flight from San Antonio (SAT) to Dulles (IAD) takes approximately 3 hours and 21 minutes. The distance is 1,363 miles (2,193 km).
Which airlines fly nonstop from San Antonio to Dulles?
Just United Airlines.
Is there a nonstop flight from San Antonio to Dulles?
Yes. 1 airline: United Airlines.
How far is San Antonio from Dulles?
The flight distance from San Antonio to Dulles 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 San Antonio to Dulles?
At 3h 21m, 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 San Antonio to Dulles?
Roughly 230 kg CO2 per passenger one-way. That's about the same as driving 1,150 km.
Is the return flight from Dulles to San Antonio 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 San Antonio to Dulles?
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 San Antonio International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.