The cheapest times to fly from IAD to AUS are
- August 6th to February 25th (except the weeks of November 19th, November 26th, and December 17th)
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from IAD to AUS is mid to late September. Prices can be as high as $911 for Sunday flights during early to mid May, or as low as $200 for Tuesday flights around mid to late September.
When to Fly to Austin
Flying from Washington, DC (IAD) to Austin, TX (AUS) will usually cost between $203 to $513 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late September with an average ticket price of $223. Due to high demand the most expensive time to fly is early to mid May, with an average price of $492. Planning your trip to low-cost times can easily save you $269 on economy flights and even more on first-class flights. Generally, any price below $343 can be considered a good price for a round-trip IAD to AUS flight.
See below for a graph of average weekly prices for the IAD to AUS route. All prices are for round-trip tickets in USD.
Compared to other flights, the IAD to AUS flight is much cheaper than the average and costs much less than the average flight leaving from Washington. The average price per mile (for a direct flight) is $0.16, which is far below average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $106 (27%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $290. Return trip prices are from the AUS to IAD flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from IAD to AUS can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 3 hour 19 minutes may be realistic.
Alternative Nearby Airports
Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from IAD to AUS while comparing.
- 66 miles (106 km) away from AUS
- Usually 5.54% less expensive than AUS
- Nonstop flights available
Flight Questions Answered
Still have questions about flying from IAD to AUS? We’ve got answers.
Which airlines fly this route?
You can find 10 major airlines flying this route most often: Alaska, American, Delta, Fiji Airways, Frontier, Qantas, Singapore Airlines, Southwest, Sun Country Airlines, United, and potentially more during busy seasons.
How far away is it from Austin – Bergstrom International Airport to Washington Dulles International Airport?
The distance between the two airports is roughly 1295 miles or 2084 kilometers.
How long does it take to fly from IAD to AUS?
The real-world flight time for a nonstop IAD to AUS flight is about 3 hour 19 minutes.
How many flights go between Washington, DC and Austin, TX?
It depends on the day of the week and the date, but a typical day might have around 73 available flights from IAD to AUS.
Airport Location Info
|Origination airport name||Washington Dulles International Airport|
|Country||the United States|
|Destination airport name||Austin – Bergstrom International Airport|
|Country||the United States|
Late and Early Flight Data
Flights from IAD to AUS tend to depart late far less frequently than the average flight. According to our recently updated data, 21% of flights departed 5 or more minutes late, and 34% of flights left 5 or more minutes early. On average you can expect to leave AUS heading for IAD about 15 minutes late. This does significantly impact arrival time, as the average landing time in Austin, TX is about 4 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- United: on time
- Mesa: 27 minutes late
- Frontier: on time
- Some airlines not reporting
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.