Cheap flights from Boston to Austin from $149

The cheapest month to fly to Austin from Boston is in January. Flight prices, which tend to average around $277, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in January, then December is your next best option. Flight prices from Boston to Austin during December average around $312.

The cheapest day to depart on your flight to Austin is on a Saturday when prices can be found for as low as $324. 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 Boston to Austin for around $463.

In the morning is the cheapest time of day to fly from Boston to Austin when you can find flight prices for as low as $360. Flying to Austin in the morning 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 $404. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Boston Logan Intl to Austin Bergstrom for the best Boston Logan Intl - Austin Bergstrom flight prices

You are more likely to see cheaper flights to Austin from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Austin for around $349 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Austin from Boston for as low as $287 on momondo.

There are 4 cabin classes available to choose from on Boston to Austin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines and Southwest are the most popular carriers operating from Boston Logan Intl to Austin Bergstrom

Delta, JetBlue and Southwest are the top three most popular airlines that fly to Austin from Boston according to our data. Delta is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Austin. Keep in mind that there are 6 different airlines that fly to Austin on a routine basis, so you have a few additional options to choose from.

Dallas (DFW) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Dallas (DFW) offer the lowest average round-trip price of $181.

Flights connecting via Nashville (BNA) have the shortest average one-way travel time: 6h 06m.

St. Louis (STL) has the shortest average layover time for this route: 0h 46m.

As of September 2026, there are 9 flights per day flying from Boston to Austin. The most common time of day flights depart is 6:00PM, with 41% of flights taking off in the evening.

The number of flights available between Boston and Austin is 65 per week as of September 2026. The most frequent departure day is Fri, with 22% of weekly flights leaving on this day.