$78 Cheap Flights from Austin (AUS) to Key West (EYW)

View $78 flight on Thu, Jan 22, 2026Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to Key West Intl. Airport (EYW)

Cheap Flights from Austin to Key West (AUS-EYW)

Prices were available within the past 7 days and start at $78 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Tue, Feb 3 - Sat, Feb 7
AUS
Austin
EYW
Key West
$179 Roundtrip, found 11 hours ago
$179
Roundtrip
found 11 hours ago
Select Spirit Airlines flight, departing Tue, Feb 3 from Austin to Key West, returning Sat, Feb 7, priced at $179 found 11 hours ago
Spirit Airlines
Thu, Dec 11 - Sun, Dec 14
AUS
Austin
EYW
Key West
$184 Roundtrip, found 3 days ago
$184
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Thu, Dec 11 from Austin to Key West, returning Sun, Dec 14, priced at $184 found 3 days ago
Spirit Airlines
Fri, Dec 12 - Sun, Dec 14
AUS
Austin
EYW
Key West
$190 Roundtrip, found 4 days ago
$190
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Fri, Dec 12 from Austin to Key West, returning Sun, Dec 14, priced at $190 found 4 days ago
American Airlines
Wed, Nov 5 - Sat, Nov 8
AUS
Austin
EYW
Key West
$191 Roundtrip, found 11 hours ago
$191
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Wed, Nov 5 from Austin to Key West, returning Sat, Nov 8, priced at $191 found 11 hours ago
Spirit Airlines
Thu, Dec 11 - Mon, Dec 15
AUS
Austin
EYW
Key West
$192 Roundtrip, found 1 day ago
$192
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Thu, Dec 11 from Austin to Key West, returning Mon, Dec 15, priced at $192 found 1 day ago
Delta
Tue, Nov 4 - Wed, Nov 19
AUS
Austin
EYW
Key West
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Delta flight, departing Tue, Nov 4 from Austin to Key West, returning Wed, Nov 19, priced at $197 just found
Spirit Airlines
Fri, Dec 12 - Mon, Dec 15
AUS
Austin
EYW
Key West
$197 Roundtrip, found 1 hour ago
$197
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Fri, Dec 12 from Austin to Key West, returning Mon, Dec 15, priced at $197 found 1 hour ago
Spirit Airlines
Thu, Dec 4 - Sun, Dec 7
AUS
Austin
EYW
Key West
$207 Roundtrip, found 1 day ago
$207
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Thu, Dec 4 from Austin to Key West, returning Sun, Dec 7, priced at $207 found 1 day ago
Spirit Airlines
Fri, Dec 5 - Mon, Dec 8
AUS
Austin
EYW
Key West
$210 Roundtrip, found 1 hour ago
$210
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Fri, Dec 5 from Austin to Key West, returning Mon, Dec 8, priced at $210 found 1 hour ago
United
Fri, Jul 10 - Tue, Jul 14
AUS
Austin
EYW
Key West
$228 Roundtrip, found 1 day ago
$228
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jul 10 from Austin to Key West, returning Tue, Jul 14, priced at $228 found 1 day ago

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

August is typically the cheapest month to fly

From $190 - $458 per traveler.

Alternative airports near Key West

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Key West Intl. EYW. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $311
EYW
Key West Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $311
Flights from Austin (AUS) to Key West (EYW)
Origin airport
Austin-Bergstrom Intl.
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta, Spirit Airlines, United
Roundtrip price
$179
Distance
1050 mi

Austin to Key West Flights

The cheapest times to fly from Austin to Key West

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Austin to Key West are during the month of February. You can find some of the cheapest flights from Austin to Key West with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Austin to Key West

Sunday is one of the best days to book for cheap flights from Austin to Key West: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Austin to Key West

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Austin to Key West in 2025. You can also book with separate airlines for your outbound and return journeys, from $78 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Austin to Key West flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Austin to Key West airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to Key West Intl. Airport (EYW) cost?
Lock in a cheap one-way flight from $78 or cheap return flight from $179 from Austin-Bergstrom Intl. Airport (AUS) to Key West Intl. Airport (EYW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Austin-Bergstrom Intl. Airport (AUS) to Key West Intl. Airport (EYW)?
February is the least expensive month to fly from AUS to EYW. Timing your trip outside of the busy season is often the key to finding better fares.
What is the cheapest airline that flies from Austin-Bergstrom Intl. Airport (AUS) to Key West Intl. Airport (EYW)?
To find the cheapest airline flying from AUS to EYW, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to Key West Intl. Airport (EYW)?
There are no daily direct flights from Austin-Bergstrom Intl. Airport (AUS) to Key West Intl. Airport (EYW). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from AUS to EYW?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Austin-Bergstrom Intl. Airport (AUS) to Key West Intl. Airport (EYW)?
Book a flight from Austin-Bergstrom Intl. Airport (AUS) to Key West Intl. Airport (EYW) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Austin-Bergstrom Intl. Airport (AUS) to Key West Intl. Airport (EYW) last-minute?
Last-minute bookings from AUS to EYW are usually more expensive. To secure the best prices, start looking for flights ahead of time. That said, if you're flexible with your travel dates, you may land a cheap ticket right before you leave.
Is it cheaper to book an AUS to EYW flight and hotel package?
You can save money by securing an AUS to EYW flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your preferred accommodations and flights, you can add extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Austin-Bergstrom Intl. Airport (AUS) to Key West Intl. Airport (EYW)?
In most instances, you can cancel or modify your AUS to EYW flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like more information, go to our Customer Service portal.

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*Available to One Key members.