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$67+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — EYW
Apr 8 — Apr 151
Tue 4/8
Tue 4/15
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 April 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$144
(Cheapflightsfares)

One-way from

$67
(Cheapflightsfares)

Popular in

January

Cheapest in

August

Average price

$341
Provider with most accurate pricing for San Antonio-Miami flight deals.
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Provider most trusted by Cheapflights users for San Antonio-Miami flights.
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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. 10% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 3, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/278:56 pmSAT - MIA
1 stop9h 57mSpirit Airlines
Wed 4/307:22 amMIA - SAT
1 stop11h 04mSpirit Airlines
Deal found 4/2$144
This American Airlines deal was found by Cheapflights users on 4/3. 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 5/275:37 pmSAT - MIA
Nonstop2h 52mAmerican Airlines
Wed 6/42:28 pmMIA - SAT
Nonstop3h 20mAmerican Airlines
Deal found 4/3$179
This Frontier deal was found by Cheapflights users on 4/2. 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.
Thu 4/245:52 pmSAT - MIA
1 stop10h 29mFrontier
Sun 4/276:00 amMIA - SAT
1 stop11h 52mFrontier
Deal found 4/2$198
This Priceline deal was found by Cheapflights users on 4/2. 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.
Mon 4/218:56 pmSAT - MIA
1 stop9h 57mMultiple Airlines
Sun 4/276:00 amMIA - SAT
1 stop11h 52mMultiple Airlines
Deal found 4/2$206
This Delta deal was found by Cheapflights users on 4/2. 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 6/1812:10 pmSAT - EYW
1 stop6h 30mDelta
Wed 6/256:29 pmEYW - SAT
1 stop6h 52mDelta
Deal found 4/2$259
This American Airlines deal was found by Cheapflights users on 4/2. 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 10/15:04 amSAT - EYW
2 stops8h 36mAmerican Airlines
Tue 10/76:02 pmEYW - SAT
1 stop6h 17mAmerican Airlines
Deal found 4/2$264
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Wed 4/167:00 amSAT - EYW
1 stop7h 04mUnited Airlines
Wed 4/234:04 pmEYW - SAT
1 stop7h 55mUnited Airlines
Deal found 4/2$274
This Southwest deal was found by Cheapflights users on 4/2. 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 4/215:00 amSAT - MIA
1 stop5h 50mSouthwest
Sat 4/265:50 amMIA - SAT
2 stops12h 45mSouthwest
Deal found 4/2$347
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Wed 10/112:24 pmSAT - MIA
1 stop4h 23mUnited Airlines
Sat 10/116:53 pmMIA - SAT
1 stop4h 40mUnited Airlines
Deal found 4/1$374
This Trip.com deal was found by Cheapflights users on 4/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1710:09 amSAT - EYW
1 stop6h 56mMultiple Airlines
Mon 4/218:45 amEYW - SAT
1 stop25h 29mMultiple Airlines
Deal found 4/2$387

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 April 3, 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

Sun 4/27

8:56 pm-7:53 am

1 stop9h 57m

Miami

Wed 4/30

7:22 am-5:26 pm

1 stop11h 04m

$144

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Tue 5/27

5:37 pm-9:29 pm

Nonstop2h 52m

Miami

Wed 6/4

2:28 pm-4:48 pm

Nonstop3h 20m

$179

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Thu 4/24

5:52 pm-5:21 am

1 stop10h 29m

Miami

Sun 4/27

6:00 am-4:52 pm

1 stop11h 52m

$198

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Mon 4/21

8:56 pm-7:53 am

1 stop9h 57m

Miami

Sun 4/27

6:00 am-4:52 pm

1 stop11h 52m

$206

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 6/18

12:10 pm-7:40 pm

1 stop6h 30m

Key West

Wed 6/25

6:29 pm-12:21 am

1 stop6h 52m

$259

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 4/16

7:00 am-3:04 pm

1 stop7h 04m

Key West

Wed 4/23

4:04 pm-10:59 pm

1 stop7h 55m

$274

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Wed 4/30

5:30 am-12:45 pm

1 stop6h 15m

Miami

Sat 5/3

6:00 am-11:08 am

1 stop6h 08m

$305

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 4/16

7:00 am-5:29 pm

2 stops9h 29m

Key West

Wed 4/23

12:59 pm-8:55 pm

1 stop8h 56m

$305

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Mon 4/21

5:00 am-11:50 am

1 stop5h 50m

Miami

Sat 4/26

9:40 am-2:05 pm

1 stop5h 25m

$342

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Thu 4/17

10:09 am-6:05 pm

1 stop6h 56m

Key West

Mon 4/21

8:45 am-9:14 am

1 stop25h 29m

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 18 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 April 3, 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
9,827 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,827 reviews
Alaska Airlines
8.0
Very good
9,827 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,274 reviews
Alaska Airlines
8.0
Very good
9,827 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,897 reviews
Alaska Airlines
8.0
Very good
9,827 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,619 reviews
Alaska Airlines
8.0
Very good
9,827 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,827 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 $67. Users have also found prices from $92 and $140 on Frontier and Southwest, 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 April 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$218Average$408FlexibilityNo cancel feeOn-time71%
DeltaCheapest$225Average$388FlexibilityNo cancel feeOn-timeN/A

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