$139 Cheap American Airlines flights Washington (IAD) to Austin (AUS)

Set the “Price (lowest to highest)” filter on Expedia to search for cheap American Airlines return flights from $195 from IAD to AUS. Affordable one-way options from $139 are also available.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

American Airlines flights to Austin tend to be more affordable in the off-peak months of January and December. Whether you’re in search of a round-trip or one-way ticket, you could score a better deal then.

Start searching one to three months ahead of your departure date to get cheap fares on American Airlines flights from Washington Dulles Intl. Airport (IAD) to Austin-Bergstrom Intl. Airport (AUS). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Enter your dates, hit search and select the “Nonstop” filter on Expedia to find any direct flights from IAD to AUS with American Airlines or another airline.

Search American Airlines’s earliest flights from IAD to AUS by selecting our “Early Morning” and “Morning” filters. Not only will you get to your destination sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

American Airlines flights from Washington Dulles Intl. Airport (IAD) to Austin arrive at Austin-Bergstrom Intl. Airport (AUS). This is the main entry point to this city.

It’s generally possible to cancel or reschedule your flight, although additional fees may apply if you booked over 24 hours ago. Need flexible options? Make use of Expedia’s “Changes included” or “No cancel fee” filter to find flights that won’t charge extra if you need to adjust your plans. To update your booking, go to “Trips,” select your flight and click on “Manage Booking” for further information.