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$85+ Cheap flights from San Antonio (SAT) to Florida Keys

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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — EYW
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheap flight deals from San Antonio to Florida Keys

Keep the following information in mind while searching for San Antonio to Florida Keys flight deals. Data was last updated June 16, 2025.

Round-trip from

$165
(Priceline)

One-way from

$85
(FlightHub)

Popular in

January

Cheapest in

September

Average price

$378
From San Antonio to Florida Keys
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One-way flight from San Antonio to Florida Keys
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Highest demand for flights based on searches. 8% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from San Antonio to Florida Keys

Cheapest flights from San Antonio to Florida Keys
Explore the most affordable flight options available from San Antonio to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2025.

This Priceline deal was found by Cheapflights users on 6/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/127:52 pmSAT - MIA
1 stop8h 46mSpirit Airlines
Thu 7/3111:10 amMIA - SAT
1 stop6h 23mSpirit Airlines
Deal found 6/15$165
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 7/295:04 amSAT - MIA
Nonstop2h 56mAmerican Airlines
Tue 8/510:37 pmMIA - SAT
Nonstop2h 53mAmerican Airlines
Deal found 6/14$179
This Southwest deal was found by Cheapflights users on 6/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/216:15 pmSAT - MIA
1 stop4h 40mSouthwest
Fri 7/257:15 amMIA - SAT
1 stop5h 05mSouthwest
Deal found 6/15$194
This FlightHub deal was found by Cheapflights users on 6/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/97:52 pmSAT - MIA
1 stop8h 46mMultiple Airlines
Sun 7/136:00 amMIA - SAT
1 stop14h 13mMultiple Airlines
Deal found 6/15$196
This Frontier deal was found by Cheapflights users on 6/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/246:59 pmSAT - MIA
1 stop10h 31mFrontier
Fri 6/276:00 amMIA - SAT
1 stop11h 43mFrontier
Deal found 6/14$200
This Delta deal was found by Cheapflights users on 6/14. 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.
Tue 7/295:25 amSAT - MIA
1 stop6h 42mDelta
Tue 8/58:11 amMIA - SAT
1 stop8h 20mDelta
Deal found 6/14$217
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 8/197:30 amSAT - EYW
1 stop8h 16mAmerican Airlines
Fri 8/227:40 pmEYW - SAT
1 stop4h 56mAmerican Airlines
Deal found 6/14$225
This Delta deal was found by Cheapflights users on 6/14. 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.
Wed 10/112:15 pmSAT - EYW
1 stop6h 29mDelta
Tue 10/77:00 amEYW - SAT
1 stop7h 18mDelta
Deal found 6/14$240
This Mytrip deal was found by Cheapflights users on 6/15. 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 7/317:25 amSAT - EYW
1 stop8h 20mMultiple Airlines
Sun 8/34:20 pmEYW - SAT
2 stops31h 22mMultiple Airlines
Deal found 6/15$327
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Fri 8/227:15 amSAT - EYW
3 stops29h 42mUnited Airlines
Wed 8/273:05 pmEYW - SAT
3 stops20h 32mUnited Airlines
Deal found 6/15$699

Cheapflights Fare Finder

Customize your flight search to find flights from San Antonio to Florida Keys 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 June 16, 2025.
Use the filters below to find and compare flights from San Antonio to Florida Keys that are best for you.

Fly from

San Antonio

Fly to

Florida Keys

Route

Depart

Return

Price

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Sat 7/12

7:52 pm-5:38 am

1 stop8h 46m

Miami

Thu 7/31

11:10 am-4:33 pm

1 stop6h 23m

$165

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Tue 7/29

5:04 am-9:00 am

Nonstop2h 56m

Miami

Tue 8/5

10:37 pm-12:30 am

Nonstop2h 53m

$179

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Mon 7/21

6:15 pm-11:55 pm

1 stop4h 40m

Miami

Fri 7/25

7:15 am-11:20 am

1 stop5h 05m

$194

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Wed 7/9

7:52 pm-5:38 am

1 stop8h 46m

Miami

Sun 7/13

6:00 am-7:13 pm

1 stop14h 13m

$196

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Thu 7/10

8:14 pm-6:30 am

1 stop9h 16m

Miami

Sun 7/13

6:00 am-7:13 pm

1 stop14h 13m

$200

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Tue 7/29

5:25 am-1:07 pm

1 stop6h 42m

Miami

Tue 8/5

8:11 am-3:31 pm

1 stop8h 20m

$217

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Tue 8/19

7:30 am-4:46 pm

1 stop8h 16m

Key West

Fri 8/22

7:40 pm-11:36 pm

1 stop4h 56m

$225

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 10/1

12:15 pm-7:44 pm

1 stop6h 29m

Key West

Tue 10/7

6:00 pm-12:05 am

1 stop7h 05m

$240

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Thu 7/31

7:25 am-4:45 pm

1 stop8h 20m

Key West

Sun 8/3

4:20 pm-10:42 pm

2 stops31h 22m

$327

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Fri 8/22

7:15 am-1:57 pm

3 stops29h 42m

Key West

Wed 8/27

3:05 pm-10:37 am

3 stops20h 32m

$699

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 17 results
1
2

Best time to book a flight from San Antonio to Florida Keys

Have a flexible travel schedule? Discover the best time to fly to Florida Keys 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 Florida Keys

What is the cheapest month to book a flight from San Antonio to Florida Keys?

Currently, August is the cheapest month in which you can book a flight from San Antonio to Florida Keys (average of $328). Flying from San Antonio to Florida Keys in March is currently the most expensive (average of $493). 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 Florida Keys by month

Plan your trip to Florida Keys by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Florida Keys ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Florida Keys when rainfall is around 1.6 in.

Temperature in Florida Keys by month

Plan your trip to Florida Keys by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Florida Keys, use this chart to help with planning. For those seeking warmer temperatures, July 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 68.0 F).

Reviews of airlines servicing Florida Keys

Get insights into the airlines that provide service to Florida Keys. 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 Florida Keys. Reviews last updated June 16, 2025.
Read through reviews of airlines operating flights from San Antonio to Florida Keys, such as Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,278 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,801 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

  • What airport do you fly from for flights from San Antonio to Florida Keys?

    Most people fly from San Antonio (SAT) if they book a flight from San Antonio to Florida Keys. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

  • What are the cheapest airlines to fly from San Antonio to Florida Keys one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $85. Users have also found prices from $97 and $100 on Southwest and Frontier, respectively.

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

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

  • How can I find direct flights from San Antonio to Florida Keys?

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

  • Can I find deals for business class flights from San Antonio to Florida Keys?

    Yes. Cheapflights offers flight deals from San Antonio to Florida Keys 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 Florida Keys?

    Currently, August is the cheapest month in which you can book a flight from San Antonio to Florida Keys (average of $328). Flying from San Antonio to Florida Keys in March is currently the most expensive (average of $493). 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 Florida Keys

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Top 2 airlines flying from San Antonio to Florida Keys

Discover the top 2 airlines that operate flights from San Antonio to Florida Keys. 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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$218Average$427FlexibilityNo cancel feeOn-time71%
DeltaCheapest$227Average$408FlexibilityNo cancel feeOn-timeN/A

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