Dulles to Austin (IAD–AUS) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
IAD–AUS is served by 3 airlines with nonstop service. United Airlines, Allegiant Air and TWY lead the route. The flight covers 1,295 miles in approximately 2h 46m. Beyond nonstop, 239 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: SN | 34 | 738, 739, 73G, B39M, E75L, E7W | 3h26-3h59 | Star Alliance | SN | |
| G4 Allegiant Air | 2 | 320 | 3h33 | – | – | |
| TWY TWY | 1 | – | 2h46 | – | – |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Austin from Dulles
| Metric | IAD→AUS | DCA→AUS | BWI→AUS |
|---|---|---|---|
| Distance from IAD | – | 23 mi | 45 mi |
| Nonstop airlines | 3 | 3 | 3 |
| Weekly flights | 51 | 7 | 28 |
| Flight time | 2h 46m | 3h 35m | 3h 35m |
| Departure OTP | 73% | – | – |
Travel Essentials
IAD: EDT · AUS: CDT
When it's 6:00 PM in Dulles, it's 5:00 PM in Austin.
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).
CapMetro Route 20 to downtown Congress Ave costs $1.25 and takes 30–35 minutes. Buses depart from outside the terminal on the lower level. Last bus around midnight; late arrivals need a ride-share.Uber and Lyft pickup is on the lower level (follow signs to TNCs). Fares run $20–30 to downtown, 15–20 minutes off-peak. Taxis at the curb: $30–40. Rental car desks are in the main terminal; the QTA (Quick Turnaround Area) is a short shuttle ride. Afternoon and evening arrivals may face longer drive times due to city congestion.
Humid subtropical climate with hot summers. July and August average 36–38°C with heat indices that can reach 43°C. Winter (December–February) is generally mild at 7–17°C. Austin is vulnerable to rare but severe ice storms. Winter Storm Uri (2021) is the benchmark for worst-case disruption, and they can paralyze the city and airport.
Severe thunderstorms peak April through May with hail and tornado risk. Spring storm systems can cause significant ground delays. October and November are the most reliably stable months.
IAD–AUS Quick Facts
Frequently Asked Questions
Flights from IAD to AUS
Washington Dulles International Airport (IAD) and Austin Bergstrom International Airport (AUS) are connected by nonstop service from Allegiant Air, TWY and United Airlines. With 51 weekly departures, this is a heavily served route.
IAD to AUS Flight Duration and Schedule
Nonstop flight time from IAD to AUS ranges from 2 hours 46 minutes to 3 hours 59 minutes. The route covers a distance of 1,295 miles (2,084 km). There are approximately 51 weekly flights outbound and 52 return, totaling 103 flights per week in both directions.
Connecting Options and Alternatives
239 one-stop connections are available, with the fastest taking approximately 4 hours via MQY. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Washington (DCA), Baltimore (BWI) and Charlottesville (CHO).