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Cheap flights from Austin to Key West from $131

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Key West departing on 8/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Austin to Key West

Cheap round-trip flights

American Airlines Logo
11:26 am - 6:59 pmAUS-EYW
6h 33m1 stop
American Airlines Logo
12:00 pm - 7:43 pmEYW-AUS
8h 43m1 stop
$191American Airlines
Find Deal
Wed, Sep 17 - Wed, Sep 24
American Airlines Logo
7:21 am - 6:59 pmAUS-EYW
10h 38m2 stops
American Airlines Logo
6:17 pm - 11:28 pmEYW-AUS
6h 11m1 stop
$196American Airlines
Find Deal
Wed, Sep 17 - Wed, Sep 24
Delta Logo
1:28 pm - 8:07 pmAUS-EYW
5h 39m1 stop
Delta Logo
7:00 am - 1:50 pmEYW-AUS
7h 50m1 stop
$197Delta
Find Deal
Wed, Sep 24 - Tue, Sep 30
American Airlines Logo
7:21 am - 6:59 pmAUS-EYW
10h 38m2 stops
American Airlines Logo
11:25 am - 9:06 pmEYW-AUS
10h 41m2 stops
$201American Airlines
Find Deal
Wed, Sep 17 - Wed, Sep 24
American Airlines Logo
5:23 am - 1:06 pmAUS-EYW
6h 43m1 stop
American Airlines Logo
8:10 am - 1:49 pmEYW-AUS
6h 39m1 stop
$225American Airlines
Find Deal
Fri, Jan 9 - Tue, Jan 13
Delta Logo
1:40 pm - 7:44 pmAUS-EYW
5h 04m1 stop
Delta Logo
7:00 am - 12:56 pmEYW-AUS
6h 56m1 stop
$228Delta
Find Deal
Tue, Jan 6 - Thu, Jan 15
Spirit Airlines Logo
5:45 am - 1:30 pmAUS-EYW
6h 45m1 stop
Spirit Airlines Logo
2:25 pm - 8:41 pmEYW-AUS
7h 16m1 stop
$253Spirit Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
Spirit Airlines Logo
5:45 am - 1:30 pmAUS-EYW
6h 45m1 stop
Spirit Airlines Logo
2:25 pm - 11:12 pmEYW-AUS
9h 47m1 stop
$283Spirit Airlines
Find Deal
Thu, Jan 8 - Mon, Jan 12
United Airlines Logo
7:15 am - 4:01 pmAUS-EYW
7h 46m1 stop
United Airlines Logo
4:50 pm - 9:14 pmEYW-AUS
5h 24m1 stop
$308United Airlines
Find Deal
Sat, Jan 10 - Sun, Jan 11
United Airlines Logo
6:45 am - 3:06 pmAUS-EYW
7h 21m1 stop
United Airlines Logo
4:50 pm - 10:34 pmEYW-AUS
6h 44m1 stop
$339United Airlines
Find Deal
Mon, Jan 5 - Sun, Jan 11

Delta flights from Austin to Key West

Our best Delta deals on Austin to Key West flight tickets
Delta
Sep 24
AUS1:28 pmAustin Bergstrom
5h 39m
1 stop
EYW8:07 pmKey West
Sep 30
EYW7:00 amKey West
7h 50m
1 stop
AUS1:50 pmAustin Bergstrom
$197
Find similar
Delta
Jan 6
AUS1:40 pmAustin Bergstrom
5h 04m
1 stop
EYW7:44 pmKey West
Jan 15
EYW7:00 amKey West
6h 56m
1 stop
AUS12:56 pmAustin Bergstrom
$228
Find similar
Delta
Jan 6
AUS10:52 amAustin Bergstrom
7h 52m
1 stop
EYW7:44 pmKey West
Jan 13
EYW7:00 amKey West
6h 56m
1 stop
AUS12:56 pmAustin Bergstrom
$243
Find similar

Spirit Airlines flights from Austin to Key West

Our best Spirit Airlines deals on Austin to Key West flight tickets
Spirit Airlines
Dec 4
AUS5:45 amAustin Bergstrom
6h 45m
1 stop
EYW1:30 pmKey West
Dec 7
EYW2:25 pmKey West
7h 16m
1 stop
AUS8:41 pmAustin Bergstrom
$253
Find similar
Spirit Airlines
Jan 8
AUS5:45 amAustin Bergstrom
6h 45m
1 stop
EYW1:30 pmKey West
Jan 12
EYW2:25 pmKey West
9h 47m
1 stop
AUS11:12 pmAustin Bergstrom
$283
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Austin to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Austin to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AustinKey West

AUS - EYW

AUSEYW

Austin Bergstrom

Wed 9/17

11:26 am-6:59 pm

1 stop6h 33m

Key West

Wed 9/24

12:00 pm-7:43 pm

1 stop8h 43m

$191

AustinKey West

AUS - EYW

AUSEYW

Austin Bergstrom

Wed 9/17

7:21 am-6:59 pm

2 stops10h 38m

Key West

Wed 9/24

6:17 pm-11:28 pm

1 stop6h 11m

$196

AustinKey West

AUS - EYW

AUSEYW

Austin Bergstrom

Wed 9/24

1:28 pm-8:07 pm

1 stop5h 39m

Key West

Tue 9/30

7:00 am-1:50 pm

1 stop7h 50m

$197

AustinKey West

AUS - EYW

AUSEYW

Austin Bergstrom

Wed 9/17

7:21 am-6:59 pm

2 stops10h 38m

Key West

Wed 9/24

11:25 am-9:06 pm

2 stops10h 41m

$201

AustinKey West

AUS - EYW

AUSEYW

Austin Bergstrom

Fri 1/9

5:23 am-1:06 pm

1 stop6h 43m

Key West

Tue 1/13

8:10 am-1:49 pm

1 stop6h 39m

$225

AustinKey West

AUS - EYW

AUSEYW

Austin Bergstrom

Tue 1/6

1:40 pm-7:44 pm

1 stop5h 04m

Key West

Thu 1/15

7:00 am-12:56 pm

1 stop6h 56m

$228

AustinKey West

AUS - EYW

AUSEYW

Austin Bergstrom

Thu 12/4

5:45 am-1:30 pm

1 stop6h 45m

Key West

Sun 12/7

2:25 pm-8:41 pm

1 stop7h 16m

$253

AustinKey West

AUS - EYW

AUSEYW

Austin Bergstrom

Thu 1/8

5:45 am-1:30 pm

1 stop6h 45m

Key West

Mon 1/12

2:25 pm-11:12 pm

1 stop9h 47m

$283

AustinKey West

AUS - EYW

AUSEYW

Austin Bergstrom

Sat 1/10

7:15 am-4:01 pm

1 stop7h 46m

Key West

Sun 1/11

4:50 pm-9:14 pm

1 stop5h 24m

$308

AustinKey West

AUS - EYW

AUSEYW

Austin Bergstrom

Mon 1/5

6:45 am-3:06 pm

1 stop7h 21m

Key West

Sun 1/11

4:50 pm-10:34 pm

1 stop6h 44m

$339

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Key West from

How to get the cheapest flight ticket from Austin to Key West

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Key West?

In general, August is the cheapest month to fly from Austin to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $309. If you are unable to visit Key West during the month of August, then departing from Austin during the month January is also very affordable. Most momondo users find prices during this month for around $323.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from Austin is on a Saturday. momondo users have found tickets for Saturday departures for as low as $297. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Austin to Key West for around $553.

What is the cheapest time of day to depart on your flight to Key West?

According to our data, the cheapest time of day to fly to Key West is at noon. momondo users have found flights departing from Austin to Key West at noon for as low as $330. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly in the morning, with an average ticket price of $387. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Key West?

You are more likely to see cheaper flights to Key West from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $399 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Austin for as low as $284 on momondo.

How have Austin to Key West flight prices changed over time?

As of August 2025, prices for Austin to Key West flights are approximately 56% cheaper when compared to flights at the same time last year.

When to book flights from Austin to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from Austin to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Austin to Key West (AUS to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to Key West

Best Price Found

$131

Fastest flight time

4h 51m

Direct flights

None

Airports in Key West

1 airport
The best one-way flight to Key West from Austin in the past 72 hours is $131. The best round-trip flight deal from Austin to Key West found on momondo in the last 72 hours is $191.
The fastest flight from Austin to Key West takes 4h 51m
There are no direct flights from Austin to Key West. Popular non-direct route for this connection is Austin Bergstrom Airport - Key West Airport.
There is 1 airport near Key West: Key West (EYW)
Search flight deals

  • How far is Austin Bergstrom to Key West by plane?

    Key West is 1052.9 mi away from Austin Bergstrom. A reasonable flight in good conditions will take 4h 51m.

  • When did momondo last update prices for flights from Austin Bergstrom Airport to Key West Airport?

    Prices for flights from Austin Bergstrom Airport to Key West Airport were last updated today.

  • How many operators does momondo search for flights from Austin Bergstrom Airport to Key West Airport?

  • How old do you have to be to fly from Austin Bergstrom Airport to Key West Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Austin Bergstrom Airport to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The necessary travel and health documents for your Key West Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Austin to Key West?

Best airlines flying from Austin to Key West

Compare and see reviews for airlines that fly from Austin to Key West with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $196Free CancellationRating
8.0
7,980 reviews
Search Delta flights
American AirlinesPriceFrom $208Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from Austin to Key West?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Key West from Austin.

Can I find flights from Austin to Key West with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Key West from Austin with this policy.

How can momondo help me find flights from Austin to Key West?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Austin to Key West.

I’m not ready to book a flight from Austin to Key West right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Key West, momondo offers a useful price alert feature which will track prices for flights to Key West from Austin and alert you when they change.

An easier way to manage your Key West trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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