Cheap flights from Boston to Austin

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Austin flight facts

What you need to know

What are the cheapest airlines?

  • Spirit Airlines
  • Frontier Airlines
  • American Airlines

These airlines usually offer the cheapest flights from Boston to Austin.

What airlines fly indirectly?

  • Delta Airlines
  • United Airlines
  • Southwest Airlines

These airlines fly from Boston to Austin, but you’ll have at least one layover.

How long is the flight?

4 hours 15 minutes

This is the shortest flight time from Boston to Austin.

Destination name

Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Boston/Austin route. There are around 35 flights on any given week from the UK to Austin and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.

How to get cheap flights from Boston to Austin

Tips and advice from our flight experts

You've searched for flights from Boston to Austin. We've found 25 flights and compared multiple offers to find the best deal. Spirit Airlines is, on average, the cheapest for this route. Look out for them! The cheapest offer we've found is a one-way ticket for the route from Boston to Austin on 12/04/2026 at 10:20 for £40.

We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 10 airlines that operate the 2,500 km flight from Boston to Austin.

To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. Popular airlines like Spirit Airlines often have competitive prices. The average flight duration is about 4 hours 15 minutes. After selecting an offer, fill out your information and proceed to payment. Don't forget to check our flight + hotel service to book everything at once, saving time and money!