$100 Cheap Flights from Austin (AUS) to Key West (EYW)

View $100 flight on Sat, Jul 5, 2025Opens in a new window

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

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Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $100 for one-way flights and $199 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, May 28 - Thu, May 29
AUS
Austin
EYW
Key West
$199 Roundtrip, found 10 hours ago
$199
Roundtrip
found 10 hours ago
Select Delta flight, departing Wed, May 28 from Austin to Key West, returning Thu, May 29, priced at $199 found 10 hours ago
Delta
Tue, Jul 1 - Wed, Jul 2
AUS
Austin
EYW
Key West
$217 Roundtrip, found 2 days ago
$217
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jul 1 from Austin to Key West, returning Wed, Jul 2, priced at $217 found 2 days ago
American Airlines
Tue, Jun 24 - Tue, Jul 1
AUS
Austin
EYW
Key West
$225 Roundtrip, found 2 days ago
$225
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Jun 24 from Austin to Key West, returning Tue, Jul 1, priced at $225 found 2 days ago
Delta
Tue, Jun 24 - Tue, Jul 1
AUS
Austin
EYW
Key West
$226 Roundtrip, found 2 days ago
$226
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jun 24 from Austin to Key West, returning Tue, Jul 1, priced at $226 found 2 days ago
Delta
Sat, Jul 5 - Wed, Jul 9
AUS
Austin
EYW
Key West
$228 Roundtrip, just found
$228
Roundtrip
just found
Select Delta flight, departing Sat, Jul 5 from Austin to Key West, returning Wed, Jul 9, priced at $228 just found
Delta
Sun, May 25 - Fri, May 30
AUS
Austin
EYW
Key West
$242 Roundtrip, found 10 hours ago
$242
Roundtrip
found 10 hours ago
Select Delta flight, departing Sun, May 25 from Austin to Key West, returning Fri, May 30, priced at $242 found 10 hours ago
Delta
Sat, Jul 5 - Thu, Jul 10
AUS
Austin
EYW
Key West
$244 Roundtrip, found 8 hours ago
$244
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Jul 5 from Austin to Key West, returning Thu, Jul 10, priced at $244 found 8 hours ago
Delta
Sat, Jul 12 - Tue, Jul 15
AUS
Austin
EYW
Key West
$251 Roundtrip, just found
$251
Roundtrip
just found
Select Delta flight, departing Sat, Jul 12 from Austin to Key West, returning Tue, Jul 15, priced at $251 just found
American Airlines
Sat, Aug 30 - Sat, Sep 6
AUS
Austin
EYW
Key West
$255 Roundtrip, found 7 hours ago
$255
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Sat, Aug 30 from Austin to Key West, returning Sat, Sep 6, priced at $255 found 7 hours ago
United
Mon, Oct 27 - Thu, Nov 13
AUS
Austin
EYW
Key West
$339 Roundtrip, found 4 days ago
$339
Roundtrip
found 4 days ago
Select United flight, departing Mon, Oct 27 from Austin to Key West, returning Thu, Nov 13, priced at $339 found 4 days ago
Flights from Austin (AUS) to Key West (EYW)
Origin airport
Austin-Bergstrom Intl.
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$198
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 May. 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 $100 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?
Discover the latest flight deals from AUS to EYW by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from AUS to EYW?
The cheapest flights from AUS to EYW are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from AUS to EYW?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from AUS to EYW. Sort your results by “Price (lowest to highest)” to snap up a great deal.
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.