$229 Cheap Flights from San Antonio (SAT) to Key West (EYW)

View $229 flight on Sun, Feb 15, 2026Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Key West Intl. Airport (EYW)

Cheap Flights from San Antonio to Key West (SAT-EYW)

Prices were available within the past 7 days and start at $229 for one-way flights and $191 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Nov 12 - Tue, Nov 18
SAT
San Antonio
EYW
Key West
$191 Roundtrip, found 1 hour ago
$191
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, Nov 12 from San Antonio to Key West, returning Tue, Nov 18, priced at $191 found 1 hour ago
Delta
Tue, Nov 4 - Wed, Nov 12
SAT
San Antonio
EYW
Key West
$197 Roundtrip, found 3 hours ago
$197
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Nov 4 from San Antonio to Key West, returning Wed, Nov 12, priced at $197 found 3 hours ago
American Airlines
Sun, Nov 2 - Sat, Nov 8
SAT
San Antonio
EYW
Key West
$225 Roundtrip, found 3 hours ago
$225
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sun, Nov 2 from San Antonio to Key West, returning Sat, Nov 8, priced at $225 found 3 hours ago
Delta
Wed, Nov 12 - Tue, Nov 18
SAT
San Antonio
EYW
Key West
$228 Roundtrip, found 1 hour ago
$228
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Nov 12 from San Antonio to Key West, returning Tue, Nov 18, priced at $228 found 1 hour ago
Delta
Sat, Oct 18 - Tue, Nov 4
SAT
San Antonio
EYW
Key West
$229 Roundtrip, found 2 days ago
$229
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Oct 18 from San Antonio to Key West, returning Tue, Nov 4, priced at $229 found 2 days ago
American Airlines
Wed, Feb 18 - Fri, Feb 27
SAT
San Antonio
EYW
Key West
$230 Roundtrip, found 3 days ago
$230
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Feb 18 from San Antonio to Key West, returning Fri, Feb 27, priced at $230 found 3 days ago
American Airlines
Wed, Nov 12 - Tue, Nov 18
SAT
San Antonio
EYW
Key West
$237 Roundtrip, found 1 hour ago
$237
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, Nov 12 from San Antonio to Key West, returning Tue, Nov 18, priced at $237 found 1 hour ago
Delta
Tue, Feb 24 - Wed, Mar 4
SAT
San Antonio
EYW
Key West
$240 Roundtrip, found 5 hours ago
$240
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Feb 24 from San Antonio to Key West, returning Wed, Mar 4, priced at $240 found 5 hours ago
Delta
Sun, Nov 2 - Wed, Nov 12
SAT
San Antonio
EYW
Key West
$243 Roundtrip, found 3 hours ago
$243
Roundtrip
found 3 hours ago
Select Delta flight, departing Sun, Nov 2 from San Antonio to Key West, returning Wed, Nov 12, priced at $243 found 3 hours ago
United
Tue, Jun 2 - Wed, Jun 10
SAT
San Antonio
EYW
Key West
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select United flight, departing Tue, Jun 2 from San Antonio to Key West, returning Wed, Jun 10, priced at $259 found 1 day ago

Find the cheapest month to fly from San Antonio (SAT) to Key West (EYW)

August is typically the cheapest month to fly

From $190 - $517 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 $518
EYW
Key West Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $518

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to Key West Intl. Airport (EYW) cost?
Secure a cheap one-way flight from $229 or cheap return flight from $191 from San Antonio Intl. Airport (SAT) 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 San Antonio Intl. Airport (SAT) to Key West Intl. Airport (EYW)?
November is the cheapest month to fly from SAT to EYW. Traveling during quieter months is often the key to better flight prices.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Key West Intl. Airport (EYW)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from SAT to EYW. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from San Antonio Intl. Airport (SAT) to Key West Intl. Airport (EYW)?
Direct flights from San Antonio Intl. Airport (SAT) to Key West Intl. Airport (EYW) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SAT to EYW?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Antonio Intl. Airport (SAT) to Key West Intl. Airport (EYW)?
To arrive at Key West Intl. Airport (EYW) without delays, opt for a flight that leaves from San Antonio Intl. Airport (SAT) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 San Antonio Intl. Airport (SAT) to Key West Intl. Airport (EYW) last-minute?
Booking your flight from SAT to EYW shortly before your trip is generally more expensive. But if there's some wiggle room with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a SAT to EYW flight and hotel package?
Booking a SAT to EYW flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our impressive range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Key West Intl. Airport (EYW)?
It's generally possible to reschedule or cancel your SAT to EYW flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Travel information

Origin airport
San Antonio Intl.
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$190
Distance
1083 mi

Book with confidence

Book with confidence

San Antonio to Key West Flights

The cheapest times to fly from San Antonio 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 San Antonio to Key West are during the month of November. You can find some of the cheapest flights from San Antonio to Key West with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Antonio to Key West

Sunday is one of the best days to book for cheap flights from San Antonio 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 San Antonio 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 San Antonio to Key West in 2025. You can also book with separate airlines for your outbound and return journeys, from $229 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 San Antonio 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 San Antonio 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.

 

San Antonio to Key West Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.