Cheap flights from Washington, D.C. Reagan-National Airport to Austin from $139

The cheapest month to fly to Austin from Washington, D.C. Reagan-National Airport is in August. Flight prices, which tend to average around $281, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in August, then September is your next best option. Flight prices from Washington, D.C. Reagan-National Airport to Austin during September average around $360.

The cheapest day to depart on your flight to Austin is on a Wednesday when prices can be found for as low as $469. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Reagan-National Airport to Austin for around $549.

In the evening is the cheapest time of day to fly from Washington, D.C. Reagan-National Airport to Austin when you can find flight prices for as low as $462. Flying to Austin in the evening is an ideal time because this is during off-peak travel hours. Flights to Austin are more costly in the afternoon, with an average ticket price of $510. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Washington, D.C. Reagan-National to Austin Bergstrom for the best Washington, D.C. Reagan-National - Austin Bergstrom flight prices

You are more likely to see cheaper flights to Austin from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Austin for around $467 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Austin from Washington, D.C. Reagan-National Airport for as low as $313 on momondo.

There is only 1 cabin class available to choose from on Washington, D.C. Reagan-National to Austin Bergstrom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 19% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Austin flight.

As of March 2026, prices for Washington, D.C. Reagan-National Airport to Austin flights are approximately 42% more expensive when compared to flights at the same time last year.

Frontier, Southwest, and United Airlines are the most popular carriers operating from Washington, D.C. Reagan-National to Austin Bergstrom

American Airlines, Southwest and United Airlines are the top three most popular airlines that fly to Austin from Washington, D.C. Reagan-National Airport according to our data. American Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Austin. Keep in mind that there are 5 different airlines that fly to Austin on a routine basis, so you have a few additional options to choose from.

Denver (DEN) was the most common stop: 86% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $255.

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 5h 23m.

Houston (IAH) has the shortest average layover time for this route: 1h 07m.

1 flights are operational daily from Washington, D.C. Reagan-National Airport to Austin as of March 2026. The most popular departure time for this route is 3:00PM, with 76% of flights per day taking off in the afternoon.

The number of flights available between Washington, D.C. Reagan-National Airport and Austin is 8 per week as of March 2026. The most frequent departure day is Fri, with 50% of weekly flights leaving on this day.