Cheap flights from Austin to Florida Keys

View AU$112 flight on Sun, 12 Oct. 2025Opens in a new window

Popular airlines from Austin to Florida Keys

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Austin (AUS) to Florida Keys (MIA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 30 Aug. - Sat, 6 Sep.
AUS
Austin
MIA
Miami
AU$243 Return, found 5 days ago
AU$243
Return
found 5 days ago
Select American Airlines flight, departing Sat, 30 Aug. from Austin to Miami, returning Sat, 6 Sep., priced at AU$243 found 5 days ago
American Airlines
Sun, 10 Aug. - Thu, 14 Aug.
AUS
Austin
MIA
Miami
AU$245 Return, found 4 days ago
AU$245
Return
found 4 days ago
Select American Airlines flight, departing Sun, 10 Aug. from Austin to Miami, returning Thu, 14 Aug., priced at AU$245 found 4 days ago
American Airlines
Sun, 10 Aug. - Thu, 14 Aug.
AUS
Austin
MIA
Miami
AU$247 Return, found 4 days ago
AU$247
Return
found 4 days ago
Select American Airlines flight, departing Sun, 10 Aug. from Austin to Miami, returning Thu, 14 Aug., priced at AU$247 found 4 days ago
American Airlines
Sat, 30 Aug. - Sat, 6 Sep.
AUS
Austin
MIA
Miami
AU$252 Return, found 5 days ago
AU$252
Return
found 5 days ago
Select American Airlines flight, departing Sat, 30 Aug. from Austin to Miami, returning Sat, 6 Sep., priced at AU$252 found 5 days ago
Delta
Sat, 30 Aug. - Sat, 6 Sep.
AUS
Austin
EYW
Key West
AU$309 Return, found 4 days ago
AU$309
Return
found 4 days ago
Select Delta flight, departing Sat, 30 Aug. from Austin to Key West, returning Sat, 6 Sep., priced at AU$309 found 4 days ago
United
Sat, 30 Aug. - Sat, 6 Sep.
AUS
Austin
MIA
Miami
AU$454 Return, found 5 days ago
AU$454
Return
found 5 days ago
Select United flight, departing Sat, 30 Aug. from Austin to Miami, returning Sat, 6 Sep., priced at AU$454 found 5 days ago

Find the cheapest month to fly from Austin (AUS) to Key West (EYW)

September is typically the cheapest month to fly

From AU$292 - AU$704 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.