HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Florida Keys

$90+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — EYW
Nov 6 — Nov 131
Thu 11/6
Thu 11/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Antonio to Florida Keys with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 October 7, 2025.

This American Airlines deal was found by Cheapflights users on 10/6. 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.
Mon 10/276:12 pmSAT - MIA
Nonstop2h 46mAmerican Airlines
Thu 11/69:40 pmMIA - SAT
Nonstop3h 19mAmerican Airlines
Deal found 10/6$171
This Southwest deal was found by Cheapflights users on 10/6. 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.
Wed 11/55:45 amSAT - MIA
1 stop9h 25mSouthwest
Wed 11/121:05 pmMIA - SAT
1 stop7h 45mSouthwest
Deal found 10/6$179
This American Airlines deal was found by Cheapflights users on 10/5. 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 11/125:23 amSAT - MIA
Nonstop2h 46mAmerican Airlines
Mon 11/179:40 pmMIA - SAT
Nonstop3h 19mAmerican Airlines
Deal found 10/5$189
This eDestinos deal was found by Cheapflights users on 10/6. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/275:45 pmSAT - MIA
1 stop5h 49mFrontier
Thu 11/66:00 amMIA - SAT
1 stop14h 30mFrontier
Deal found 10/6$193
This American Airlines deal was found by Cheapflights users on 10/6. 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.
Sun 10/265:30 amSAT - MIA
Nonstop2h 45mAmerican Airlines
Thu 11/69:40 pmMIA - SAT
Nonstop3h 19mAmerican Airlines
Deal found 10/6$194
This Frontier deal was found by Cheapflights users on 10/7. 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.
Fri 10/315:35 pmSAT - MIA
1 stop5h 59mFrontier
Sat 11/86:00 amMIA - SAT
1 stop9h 17mFrontier
Deal found 10/7$198
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Fri 10/315:35 pmSAT - MIA
1 stop5h 59mMultiple Airlines
Mon 11/312:05 pmMIA - SAT
2 stops31h 27mMultiple Airlines
Deal found 10/7$199
This American Airlines deal was found by Cheapflights users on 10/6. 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 10/225:30 amSAT - MIA
Nonstop2h 45mAmerican Airlines
Wed 10/297:42 pmMIA - SAT
Nonstop3h 16mAmerican Airlines
Deal found 10/6$204
This Kiwi.com deal was found by Cheapflights users on 10/6. 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 10/275:45 pmSAT - MIA
1 stop5h 49mMultiple Airlines
Fri 11/73:25 pmMIA - SAT
2 stops33h 20mMultiple Airlines
Deal found 10/6$207
This American Airlines deal was found by Cheapflights users on 10/5. 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 11/115:23 amSAT - MIA
Nonstop2h 46mAmerican Airlines
Fri 11/149:40 pmMIA - SAT
Nonstop3h 19mAmerican Airlines
Deal found 10/5$219
This American Airlines deal was found by Cheapflights users on 10/6. 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 10/75:30 amSAT - EYW
1 stop6h 25mAmerican Airlines
Sat 10/115:47 pmEYW - SAT
1 stop5h 11mAmerican Airlines
Deal found 10/6$261
This Kiwi.com deal was found by Cheapflights users on 10/4. 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 10/207:35 pmSAT - EYW
2 stops14h 30mMultiple Airlines
Fri 10/248:55 amEYW - SAT
1 stop7h 55mMultiple Airlines
Deal found 10/4$296

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 October 7, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$171
(American Airlines)

One-way from

$90
(Southwest)

Popular in

June

Cheapest in

October

Average price

$348
Provider with most accurate pricing for San Antonio-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Miami flights.
Search Deals
From San Antonio to Florida Keys
Search Deals
One-way flight from San Antonio to Florida Keys
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 7, 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

Tue 11/4

12:45 pm-7:50 pm

1 stop6h 05m

Miami

Tue 11/11

1:45 pm-9:50 pm

1 stop9h 05m

$179

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Mon 12/8

5:45 am-4:10 pm

1 stop9h 25m

Miami

Thu 12/11

1:05 pm-7:50 pm

1 stop7h 45m

$179

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Wed 11/5

5:45 am-4:10 pm

1 stop9h 25m

Miami

Wed 11/12

1:05 pm-9:55 pm

2 stops9h 50m

$184

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Sun 1/18

2:10 pm-9:30 pm

1 stop6h 20m

Miami

Sun 1/25

6:30 am-1:45 pm

1 stop8h 15m

$219

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Mon 10/27

6:41 am-3:30 pm

1 stop7h 49m

Miami

Fri 11/7

6:00 am-1:28 pm

1 stop8h 28m

$237

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Fri 1/9

4:25 pm-12:57 am

1 stop7h 32m

Miami

Sat 1/17

5:55 pm-11:33 pm

1 stop6h 38m

$238

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Wed 12/10

5:20 am-1:13 pm

1 stop6h 53m

Miami

Sun 12/14

7:00 am-1:12 pm

1 stop7h 12m

$239

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Tue 11/11

6:30 am-2:35 pm

1 stop7h 05m

Miami

Fri 11/14

4:52 pm-11:16 pm

1 stop7h 24m

$239

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Fri 10/31

4:55 pm-9:07 pm

2 stops27h 12m

Miami

Mon 11/3

7:39 pm-6:32 pm

2 stops23h 53m

$272

San AntonioMiami

SAT - MIA

SATMIA

San Antonio

Fri 10/24

5:30 am-9:15 am

Nonstop2h 45m

Miami

Sat 11/1

7:43 pm-10:03 pm

Nonstop3h 20m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/5

Showing 1-10 of 26 results
1
2
3

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 $191). Flying from San Antonio to Florida Keys in March is currently the most expensive (average of $326). 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.

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 October 7, 2025.
Read through reviews of airlines operating flights from San Antonio to Florida Keys, such as Southwest, Delta, and United Airlines. 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.
Southwest
8.0
Very good
4,233 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,233 reviews
Southwest
8.0
Very good
4,233 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,969 reviews
Southwest
8.0
Very good
4,233 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,957 reviews
Southwest
8.0
Very good
4,233 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
11,041 reviews
Southwest
8.0
Very good
4,233 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Spirit Airlines
6.3
Okay
8,080 reviews
Southwest
8.0
Very good
4,233 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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.

  • How long is the flight from San Antonio to Florida Keys?

    There are many flights that can get you from San Antonio to Florida Keys in 6h 02m. Fly via Southwest, Delta, or American Airlines to get the fastest option. San Antonio and Florida Keys are separated by a distance of 1082 mi. This flight may include one or multiple stops.

  • 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 $191). Flying from San Antonio to Florida Keys in March is currently the most expensive (average of $326). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Antonio to Florida Keys

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Orlando flights
Dallas/Fort Worth to Fort Lauderdale flights
Hobby to Orlando flights
Dallas/Fort Worth to Miami flights
George Bush Intcntl to Orlando flights
Hobby to Miami flights
Hobby to Fort Lauderdale flights
George Bush Intcntl to Miami flights
Dallas/Fort Worth to Tampa flights
Austin to Orlando flights
George Bush Intcntl to Fort Lauderdale flights
Love Field to Orlando flights
Love Field to Miami flights
Austin to Miami flights
Austin to Fort Lauderdale flights
Hobby to Tampa flights
Dallas/Fort Worth to West Palm Beach flights
San Antonio to Orlando flights
George Bush Intcntl to Tampa flights
Love Field to Fort Lauderdale flights
Austin to Tampa flights
Hobby to West Palm Beach flights
San Antonio to Miami flights
Austin to Jacksonville flights
George Bush Intcntl to West Palm Beach flights
Dallas/Fort Worth to Fort Myers flights
Hobby to Jacksonville flights
George Bush Intcntl to Jacksonville flights
Dallas/Fort Worth to Jacksonville flights
Dallas/Fort Worth to Pensacola flights
Dallas/Fort Worth to Panama City flights
Love Field to Tampa flights
San Antonio to Fort Lauderdale flights
Hobby to Panama City flights
Love Field to West Palm Beach flights
Dallas/Fort Worth to Key West flights
Hobby to Pensacola flights
San Antonio to Jacksonville flights
George Bush Intcntl to Panama City flights
Hobby to Key West flights
Hobby to Fort Myers flights
San Antonio to Tampa flights
Austin to Fort Myers flights
Dallas/Fort Worth to Valparaiso flights
Dallas/Fort Worth to Sarasota flights
Love Field to Jacksonville flights
George Bush Intcntl to Fort Myers flights
McAllen to Tampa flights
George Bush Intcntl to Pensacola flights
Austin to West Palm Beach flights

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 October 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$227Average$418FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$476FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.