Austin (AUS) to Fort Lauderdale (FLL): 1,103 miles (1,775 km) great-circle, about 2h 40m nonstop by our estimate. Cheapest fare observed: $258 round-trip on Southwest, with 1 stop, departing May 18, 2026.
$258 round-trip, Southwest WN3322, departing 2026-05-18 at 15:50, returning 2026-05-25. The recorded itinerary left on a Monday, returning on a Monday 7 nights later; the fare was observed 23 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $258, it ranked 10th of the 30 round-trip fares we recorded from AUS (median $292). That is 23.4 cents per great-circle mile (round-trip price over one-way distance), close to the AUS median of 22.5 cents across 30 round-trip routes.
Routes from AUS of similar length: Miami (1,101 mi) at $283 and Las Vegas (1,088 mi) at $320.
Southwest had the cheapest fare on 2 of 30 AUS routes. It is the 21st longest of the 30 routes we track from AUS.
Of 28 departure airports with a fare to Fort Lauderdale, Austin (AUS) ranked 18th at $258. Lowest: $64 from Charlotte (CLT); highest: $1825 from Wellington (WLG); 16 nonstop. Cheapest-fare airlines (routes): Frontier (8), Spirit (8), JetBlue (4), WestJet (3), Air Transat (1) and American Airlines (1), plus 3 more.
The reverse, Fort Lauderdale (FLL) to Austin (AUS), was $200 round-trip on Spirit, nonstop, departing April 30, 2026. Fort Lauderdale to Austin flights.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Chicago, America/New_York; flight time is our estimate.