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$259+ Cheap flights from San Antonio to Key West (SAT - EYW)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — EYW
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from San Antonio to Key West are usually found in September or August, booked 76 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$264
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$375
Provider with most accurate pricing for San Antonio-Key West flight deals.
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Provider most trusted by Cheapflights users for San Antonio-Key West flights.
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From San Antonio to Key West
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find 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 February 20, 2025.

This American Airlines deal was found by Cheapflights users on 2/19. 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.
Sat 5/311:56 amSAT - EYW
1 stop7h 15mAmerican Airlines
Tue 5/65:20 pmEYW - SAT
1 stop5h 57mAmerican Airlines
Deal found 2/19$259
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/19:45 amSAT - EYW
1 stop5h 24mUnited Airlines
Wed 3/193:59 pmEYW - SAT
1 stop8h 21mUnited Airlines
Deal found 2/20$320
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/148:15 amSAT - EYW
1 stop8h 02mDelta
Thu 4/173:00 pmEYW - SAT
1 stop8h 05mDelta
Deal found 2/20$419
This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/611:11 amSAT - EYW
2 stops28h 07mMultiple Airlines
Mon 3/109:52 amEYW - SAT
3 stops25h 24mMultiple Airlines
Deal found 2/19$778

Find flights from San Antonio to Key West within your budget

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 February 20, 2025.

Fly from

San Antonio

Fly to

Key West

Route

Depart

Return

Price

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Sat 5/3

11:56 am-8:11 pm

1 stop7h 15m

Key West

Tue 5/6

5:20 pm-10:17 pm

1 stop5h 57m

$259

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Sat 3/1

9:45 am-4:09 pm

1 stop5h 24m

Key West

Wed 3/19

3:59 pm-11:20 pm

1 stop8h 21m

$320

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Mon 4/14

8:15 am-5:17 pm

1 stop8h 02m

Key West

Thu 4/17

3:00 pm-10:05 pm

1 stop8h 05m

$419

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Thu 3/6

11:11 am-4:18 pm

2 stops28h 07m

Key West

Mon 3/10

9:52 am-10:16 am

3 stops25h 24m

$778

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 3/26

2:20 pm-6:55 pm

2 stops27h 35m

$268

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 3/26

1:45 pm-8:30 pm

1 stop5h 45m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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.

Travel insights for flights from San Antonio to Key West

Get recent, data-driven insights about flights from San Antonio to Key West including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from San Antonio to Key West?

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Key West. Price data was last updated on February 14, 2025.

The best time to book flights from San Antonio to Key West is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from San Antonio to Key West (average of $328). Flying from San Antonio to Key West in March is currently the most expensive (average of $510). 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.

Rainfall in Key West by month

Plan your trip to Key West by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key West ranges from 1.5 - 6.7 inches per month. September is typically the wettest month, when rainfall can reach 6.7 in. February is typically the driest time to visit Key West when rainfall is around 1.5 in.

Temperature in Key West by month

Plan your trip to Key West by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

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 February 20, 2025.
Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from San Antonio to Key West by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20

2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20

2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20

2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,220 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

8.0

Reviews

1 / 20

2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

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.

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

    American Airlines, at $264, was found to be the cheapest airline from San Antonio to Key West.Alternate airlines to your destination round-trip include Delta and United Airlines. American Airlines is currently priced 36% 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, August is the cheapest month in which you can book a flight from San Antonio to Key West (average of $328). Flying from San Antonio to Key West in March is currently the most expensive (average of $510). 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.

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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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$218Average$408FlexibilityNo cancel feeOn-time71%
DeltaCheapest$225Average$398FlexibilityNo cancel feeOn-timeN/A
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