$144 Cheap American Airlines flights Buffalo (BUF) to Austin (AUS)

Landing cheap one-way American Airlines flights from BUF to AUS from $144 on Expedia is a breeze --- just filter by "Price (lowest to highest)." Alternatively, check out our affordable return fares from $287 for your next getaway.**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.

Look for affordable American Airlines flights from Buffalo Niagara Intl. Airport (BUF) to Austin-Bergstrom Intl. Airport (AUS) one to three months prior to your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and journey, the best day to book a domestic flight is usually Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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.

To find the earliest departures from BUF to AUS with American Airlines, sort your results by "Early Morning" and "Morning." Booking an early flight usually means cancellations are less likely.**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.