Dulles to San Antonio (IAD–SAT) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
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 2h 54m. Beyond nonstop, 133 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AC, SN | 15 | 739, 7M9, E75L, E7W | 3h45-4h | Star Alliance | AC, SN | |
| DL Delta Air Lines | 0 | – | – | SkyTeam | – |
Weekly Schedule Pattern
Connection Landscape
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 | 1 |
| Weekly flights | 37 | 8 | 12 |
| Flight time | 2h 54m | 4h 12m | 3h 45m |
| Departure OTP | 86% | – | – |
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 Delta Air Lines and United Airlines. With 37 weekly departures, this is a heavily served route.
IAD to SAT Flight Duration and Schedule
Nonstop flight time from IAD to SAT ranges from 2 hours 54 minutes to 4 hours 0 minutes. The route covers a distance of 1,360 miles (2,189 km). There are approximately 37 weekly flights outbound and 37 return, totaling 74 flights per week in both directions.
Connecting Options and Alternatives
133 one-stop connections are available, with the fastest taking approximately 4 hours via TUL. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Washington (DCA), Baltimore (BWI) and Charlottesville (CHO).