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IAD to SAT: distance & flight time
Washington (Washington Dulles International Airport) → San Antonio (San Antonio International Airport)
1,360 mi
2,189 km · 1,182 nm
3h 25m
estimated nonstop flight time
-1h
time difference · heading west
See live IAD→SAT fares Phone-only fares on this route — call free
Flight time details
1,360 miles nonstop takes roughly 3h 25m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- SAT — San Antonio International Airport · San Antonio, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near IAD
Near SAT
- RND · Randolph Air Force Base11 mi away
- SKF · Lackland Air Force Base12 mi away
- SSF · Stinson Municipal Airport14 mi away
- AUS · Austin Bergstrom International Airport66 mi away
Frequently asked questions
How far is IAD from SAT?
The flight distance from Washington (IAD) to San Antonio (SAT) is 1,360 miles (2,189 km, 1,182 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to SAT?
A nonstop flight takes about 3h 25m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Washington and San Antonio?
San Antonio is 1 hour behind Washington.
What is the cheapest way to fly from IAD to SAT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–SAT that never appear on search engines, with no booking fees.