$25 Cheap flight deals from Austin (AUS) to Key Biscayne (MIA)

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This Weekend's Flight Deals from Austin to Key Biscayne

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jan 11 - Mon, Jan 12
AUS
Austin-Bergstrom Intl.
FLL
Fort Lauderdale - Hollywood Intl.
$97 Roundtrip, just found
$97
Roundtrip
just found
Select Spirit Airlines flight, departing Sun, Jan 11 from Austin-Bergstrom Intl. to Fort Lauderdale - Hollywood Intl., returning Mon, Jan 12, priced at $97 just found
Sat, Jan 10 - Sun, Jan 18
AUS
Austin-Bergstrom Intl.
MIA
Miami Intl.
$222 Roundtrip, found 2 days ago
$222
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Jan 10 from Austin-Bergstrom Intl. to Miami Intl., returning Sun, Jan 18, priced at $222 found 2 days ago

Airfares from $25 One Way, $49 Round Trip from Austin to Key Biscayne

Prices starting at $49 for return flights and $25 for one-way flights to Key Biscayne were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jan 20 - Fri, Jan 23
AUS
Austin
FLL
Fort Lauderdale
$49 Roundtrip, just found
$49
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Jan 20 from Austin to Fort Lauderdale, returning Fri, Jan 23, priced at $49 just found
Tue, Feb 17 - Fri, Feb 20
AUS
Austin
MIA
Miami
$84 Roundtrip, just found
$84
Roundtrip
just found
Select Southwest Airlines flight, departing Tue, Feb 17 from Austin to Miami, returning Fri, Feb 20, priced at $84 just found
Mon, Jan 26 - Thu, Jan 29
AUS
Austin
MIA
Miami
$91 Roundtrip, found 1 day ago
$91
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Mon, Jan 26 from Austin to Miami, returning Thu, Jan 29, priced at $91 found 1 day ago
Tue, Feb 17 - Fri, Feb 20
AUS
Austin
MIA
Miami
$91 Roundtrip, just found
$91
Roundtrip
just found
Select American Airlines flight, departing Tue, Feb 17 from Austin to Miami, returning Fri, Feb 20, priced at $91 just found
Mon, Mar 2 - Fri, Mar 6
AUS
Austin
MIA
Miami
$137 Roundtrip, found 5 days ago
$137
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Mar 2 from Austin to Miami, returning Fri, Mar 6, priced at $137 found 5 days ago

Key Biscayne economy flight packages

Price found within the past 48 hours. Click for updated prices.
6080 Design Hotel by Eskape Collection
4.0-star property

6080 Design Hotel by Eskape Collection

8.4/10 Very Good! (1,002 reviews)

Feb 11 - Feb 15

4 night stay

Austin (AUS) to Miami (MIA)

American Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $959, price is now $497 per person
$497
per person
found 17 hours ago
Beautiful property. All staff were so professional and kind. Will be coming back again!

Reviewed on Nov 6, 2024

The Penguin Hotel
3.5-star property

The Penguin Hotel

8.2/10 Very Good! (1,491 reviews)

Feb 11 - Feb 15

4 night stay

Austin (AUS) to Miami (MIA)

American Airlines • Roundtrip • Coach
Price was $1,257, price is now $605 per person
$605
per person
found 17 hours ago
Great place and great time

Reviewed on Nov 10, 2025

Brickell Floor 31 Sea View-Free Parking by Palermo Home
3.5-star property

Brickell Floor 31 Sea View-Free Parking by Palermo Home

No reviews

Feb 11 - Feb 15

4 night stay

Austin (AUS) to Miami (MIA)

American Airlines • Roundtrip • Coach
Price was $1,633, price is now $843 per person
$843
per person
found 17 hours ago
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More About Flying To Key Biscayne from Austin

Route Information for Flights from Austin to Key Biscayne

Origin Airport IATA Code
AUS
Destination Airport IATA Code
MIA
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Austin to Key Biscayne

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.