Dulles to San Antonio (IAD–SAT) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
IAD–SAT is served by 2 airlines with nonstop service. United Airlines and Delta Air Lines lead the route. The flight covers 1,360 miles in approximately 3h 37m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AC, SN | 19 | 737, 739, 7M8, E7W | 3h34-3h46 | Star Alliance | AC, SN | |
| DL Delta Air Lines | 0 | – | – | SkyTeam | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach San Antonio from Dulles
| Metric | IAD→SAT | DCA→SAT | BWI→SAT |
|---|---|---|---|
| Distance from IAD | – | 23 mi | 45 mi |
| Nonstop airlines | 2 | 2 | 2 |
| Weekly flights | 40 | 7 | 25 |
| Flight time | 3h 37m | 3h 41m | 3h 25m |
| Departure OTP | 74% | – | – |
Travel Essentials
IAD: EDT · SAT: CDT
When it's 6:00 PM in Dulles, it's 5:00 PM in San Antonio.
WMATA Silver Line Metro now reaches Dulles directly; take Silver Line to Washington Dulles Airport station (about 65 min from Metro Center, ~$7). The connection opened in late 2022.Ride-shares from downtown DC run $35–60 and take 35–50 minutes via I-66 (longer during peak hours). Washington Flyer coach to Wiehle-Reston East Metro costs $6. The airport is 27 miles from downtown; taxis are expensive ($60–80).
IAD–SAT Quick Facts
Frequently Asked Questions
Flights from IAD to SAT
Washington Dulles International Airport (IAD) and San Antonio International Airport (SAT) are connected by nonstop service from United Airlines and Delta Air Lines. With 40 weekly departures, this is a heavily served route.
IAD to SAT Flight Duration and Schedule
Nonstop flight time from IAD to SAT is about 3 hours 37 minutes gate to gate. The route covers a distance of 1,360 miles (2,189 km). There are approximately 40 weekly flights outbound and 49 return, totaling 89 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Hartsfield Jackson Atlanta, Nashville and George Bush Intercontinental. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Washington (DCA), Baltimore (BWI) and Charlottesville (CHO).