Key West

$184+ Cheap flights from San Antonio to Key West (SAT - EYW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — EYW
Aug 24 — Aug 311
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Cheap flight deals from San Antonio to Key West

Cheapest flights from San Antonio to Key West
Explore the most affordable flight options available from San Antonio to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.

This American Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:14 am
SAT
-
EYW
1 stop7h 03m
American Airlines
Wed 9/232:15 pm
EYW
-
SAT
1 stop8h 23m
American Airlines
Deal found 7/21$319
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:55 am
SAT
-
EYW
1 stop23h 32m
Breeze Airways
Wed 9/910:04 am
EYW
-
SAT
2 stops23h 41m
Breeze Airways
Deal found 7/22$325
This American Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:00 am
SAT
-
EYW
1 stop8h 18m
American Airlines
Sun 8/308:09 pm
EYW
-
SAT
1 stop4h 50m
American Airlines
Deal found 7/23$329
This Delta deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:20 am
SAT
-
EYW
1 stop6h 06m
Delta
Wed 9/911:42 am
EYW
-
SAT
1 stop8h 21m
Delta
Deal found 7/22$333
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:30 am
SAT
-
EYW
2 stops24h 04m
Multiple Airlines
Thu 8/1312:05 pm
EYW
-
SAT
1 stop21h 51m
Multiple Airlines
Deal found 7/21$350
This Kiwi.com deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/37:39 pm
SAT
-
EYW
2 stops15h 55m
Multiple Airlines
Thu 8/612:05 pm
EYW
-
SAT
1 stop21h 51m
Multiple Airlines
Deal found 7/20$365
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/99:55 am
SAT
-
EYW
1 stop23h 32m
Breeze Airways
Wed 8/1211:46 am
EYW
-
SAT
2 stops22h 29m
Breeze Airways
Deal found 7/24$394
This United Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:35 am
SAT
-
EYW
1 stop6h 43m
United Airlines
Wed 10/284:00 pm
EYW
-
SAT
1 stop7h 58m
United Airlines
Deal found 7/22$419
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:55 am
SAT
-
EYW
1 stop23h 32m
Multiple Airlines
Mon 8/101:11 pm
EYW
-
SAT
2 stops32h 26m
Multiple Airlines
Deal found 7/21$434
This American Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:15 am
SAT
-
EYW
1 stop4h 41m
American Airlines
Wed 9/911:30 am
EYW
-
SAT
2 stops9h 20m
American Airlines
Deal found 7/23$445

Find flight deals from San Antonio to Key West

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Key West (EYW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(American Airlines)

One-way from

$184
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$578
Provider with most accurate pricing for San Antonio-Key West flight deals.
Provider most trusted by Cheapflights users for San Antonio-Key West flights.
From San Antonio to Key West
One-way flight from San Antonio to Key West
Highest demand for flights based on searches. 2% potential increase in price ($13 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Average for round-trip flights in July 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio 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, Cheapflights users made 2,558,603 searches. Data last updated July 25, 2026.
Use the filters below to find and compare flights from San Antonio to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 1/6

6:43 am-3:06 pm

1 stop7h 23m

Key West

Wed 1/13

4:05 pm-10:58 pm

1 stop7h 53m

$319

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 9/2

10:46 am-5:20 pm

1 stop5h 34m

Key West

Wed 9/9

6:19 pm-12:08 am

1 stop6h 49m

$329

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Sun 9/6

5:20 am-12:26 pm

1 stop6h 06m

Key West

Wed 9/9

11:42 am-7:03 pm

1 stop8h 21m

$333

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Sat 10/24

6:35 am-2:18 pm

1 stop6h 43m

Key West

Wed 10/28

4:00 pm-10:58 pm

1 stop7h 58m

$419

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Thu 8/6

9:55 am-10:27 am

1 stop23h 32m

Key West

Mon 8/10

1:11 pm-8:37 pm

2 stops32h 26m

$434

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Sat 10/3

6:00 am-5:55 pm

2 stops10h 55m

Key West

Wed 10/7

5:28 pm-9:58 pm

1 stop5h 30m

$443

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 9/16

5:14 am-10:57 am

1 stop4h 43m

Key West

Wed 9/23

1:47 pm-10:50 pm

2 stops10h 03m

$443

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 9/2

5:15 am-10:56 am

1 stop4h 41m

Key West

Wed 9/9

11:30 am-7:50 pm

2 stops9h 20m

$445
Quickest round-trip

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Thu 10/15

11:51 am-6:49 pm

1 stop5h 58m

Key West

Wed 10/21

5:28 pm-9:58 pm

1 stop5h 30m

$461
Cheapest one-way

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Thu 8/20

9:55 am-10:27 am

1 stop23h 32m

$184

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Compare providers for flights from San Antonio to Key West

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Key West in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Antonio-Key West flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Key West flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Key West flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Key West flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Key West flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Antonio to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from San Antonio with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Key West

What is the cheapest month to book a flight from San Antonio to Key West?

Currently, April is the cheapest month in which you can book a flight from San Antonio to Key West (average of $258). Flying from San Antonio to Key West in December is currently the most expensive (average of $731). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from San Antonio to Key West?

Airfare is typical for this route at the moment.

San Antonio to Key West flights typically cost between $303 and $790 in September.
The cheapest round-trip price found within the last 5 days was $319 on American Airlines (Sep 16-Sep 23).

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key West. Reviews last updated July 25, 2026.
Peruse reviews from past customers who have flown with Delta and American Airlines from San Antonio to Key West to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.8

Crew

8.5

Food

7.2

Comfort

7.8

Boarding

8.1

Overall

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Entertainment

7.8

Crew

8.5

Food

7.2

Comfort

7.8

Boarding

8.1

Overall

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Entertainment

7.8

Crew

8.5

Food

7.2

Comfort

7.8

Boarding

8.1

Overall

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Antonio to Key West?

    Airlines like United Airlines and Delta fly from San Antonio to Key West in about 5h 34m. The time it takes to get you to your destination can typically vary by up to 1h 49m. The distance from San Antonio to Key West is about 1082 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from San Antonio to Key West round-trip?

    American Airlines, at $236, was found to be the cheapest airline from San Antonio to Key West. An alternate airline flying to your destination would be Delta. American Airlines is currently priced 50% below the average price you’ll pay for this route.

  • Can I find deals for flights from San Antonio to Key West that include hotel bookings?

    Yes. In addition to deals on San Antonio to Key West flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Key West.

  • Can I find deals for business class flights from San Antonio to Key West?

    Yes. Cheapflights offers flight deals from San Antonio to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Antonio to Key West?

    Currently, April is the cheapest month in which you can book a flight from San Antonio to Key West (average of $258). Flying from San Antonio to Key West in December is currently the most expensive (average of $731). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for San Antonio to Key West

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from San Antonio to Key West

Discover the top 2 airlines that operate flights from San Antonio to Key West. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$236Average$468FlexibilityNo cancel feeOn-time71%
DeltaCheapest$259Average$408FlexibilityNo cancel feeOn-timeN/A

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