San Antonio to Dulles (SAT–IAD) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
SAT–IAD is served by 1 airline with nonstop service. United Airlines leads the route. The flight covers 1,360 miles in approximately 2h 56m. Beyond nonstop, 125 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AC, SN | 15 | 739, 7M8, E75L, E7W | 3h21-3h41 | Star Alliance | AC, SN |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Dulles from San Antonio
| Metric | SAT→IAD | AUS→IAD | CRP→IAD |
|---|---|---|---|
| Distance from SAT | – | 67 mi | 135 mi |
| Nonstop airlines | 1 | 18 | 1 |
| Weekly flights | 37 | 52 | – |
| Flight time | 2h 56m | 2h 31m | 1h 58m |
| Departure OTP | 100% | – | – |
Travel Essentials
SAT: CDT · IAD: EDT
When it's 6:00 PM in San Antonio, it's 7:00 PM in Dulles.
Silver Line Metro runs from Washington Dulles Airport station to Metro Center in about 65 minutes (~$7). The route bypasses I-66 and I-495 congestion entirely. Washington Flyer coach also runs to Wiehle-Reston East station ($6, 15 min) for Metro connection.Taxis and ride-shares to downtown DC cost $55–80 and take 35–55 minutes depending on traffic. Car rental facilities are on-site. Dulles is 27 miles west of the Capitol; it is farther than either DCA or BWI from central DC.
Humid continental climate. Summers are hot and muggy (30–36°C) with frequent afternoon thunderstorms that cause delays June through August. Winters bring cold temperatures (−3 to 5°C) with snow and ice. The Virginia suburbs accumulate more snow than downtown DC, and ice storms are the primary disruption risk.
Dulles sits at higher elevation in Virginia's piedmont and sees more winter precipitation than DCA. Spring and fall are variable. Snowfall is possible into April. Thunderstorms begin from April through May.
SAT–IAD Quick Facts
Frequently Asked Questions
Flights from SAT to IAD
San Antonio International Airport (SAT) and Washington Dulles International Airport (IAD) are connected by nonstop service from United Airlines. With 37 weekly departures, this is a heavily served route.
SAT to IAD Flight Duration and Schedule
Nonstop flight time from SAT to IAD ranges from 2 hours 56 minutes to 3 hours 41 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
125 one-stop connections are available, with the fastest taking approximately 3 hours via ADS. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Austin (AUS), Corpus Christi (CRP) and College Station (CLL).