$80+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — EYW
May 3 — May 101
Round-trip
1 adult, Economy
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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
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Cheapest flights from San Antonio to Florida KeysExplore 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, 2026.
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, 2026.
This Frontier deal was found by Cheapflights users on 3/31. 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.
Mon 4/203:00 pm
SAT
- MIA
1 stop13h 05m
Frontier
Thu 4/237:00 am
MIA
- SAT
1 stop8h 15m
Frontier
Deal found 3/31![Frontier logo]()
$180
This Expedia deal was found by Cheapflights users on 3/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:59 pm
SAT
- MIA
1 stop9h 01m
Frontier
Fri 5/89:41 pm
MIA
- SAT
1 stop23h 33m
Frontier
Deal found 3/30![Frontier logo]()
$181
This Expedia deal was found by Cheapflights users on 3/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:59 pm
SAT
- MIA
1 stop9h 01m
Frontier
Tue 5/268:10 pm
MIA
- SAT
1 stop25h 04m
Frontier
Deal found 3/31![Frontier logo]()
$185
This CheapOair deal was found by Cheapflights users on 3/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/13:00 pm
SAT
- MIA
1 stop13h 05m
Frontier
Mon 5/119:41 pm
MIA
- SAT
1 stop23h 33m
Frontier
Deal found 3/31![Frontier logo]()
$191
This Frontier deal was found by Cheapflights users on 3/30. 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 4/284:04 pm
SAT
- MIA
1 stop12h 01m
Frontier
Fri 5/18:42 am
MIA
- SAT
1 stop11h 48m
Frontier
Deal found 3/30![Frontier logo]()
$197
This Frontier deal was found by Cheapflights users on 3/30. 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.
Mon 4/278:39 pm
SAT
- MIA
1 stop9h 43m
Frontier
Fri 5/18:42 am
MIA
- SAT
1 stop11h 48m
Frontier
Deal found 3/30![Frontier logo]()
$200
This Priceline deal was found by Cheapflights users on 3/30. 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 4/254:04 pm
SAT
- MIA
1 stop12h 01m
Frontier
Wed 4/297:00 am
MIA
- SAT
1 stop9h 53m
Frontier
Deal found 3/30![Frontier logo]()
$201
This eDestinos deal was found by Cheapflights users on 3/29. 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 4/273:00 pm
SAT
- MIA
1 stop13h 05m
Frontier
Mon 5/47:00 am
MIA
- SAT
1 stop8h 15m
Frontier
Deal found 3/29![Frontier logo]()
$204
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:00 pm
SAT
- MIA
1 stop13h 05m
Frontier
Sat 4/257:00 am
MIA
- SAT
1 stop9h 09m
Frontier
Deal found 4/2![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 5/77:54 pm
SAT
- MIA
1 stop8h 44m
Frontier
Mon 5/116:00 am
MIA
- SAT
2 stops37h 59m
Frontier
Deal found 3/31![Frontier logo]()
$208
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:54 pm
SAT
- MIA
1 stop8h 44m
Frontier
Sun 5/109:41 pm
MIA
- SAT
1 stop23h 33m
Frontier
Deal found 3/30![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Sat 4/184:04 pm
SAT
- MIA
1 stop12h 01m
Frontier
Fri 4/2412:26 pm
MIA
- SAT
2 stops27h 43m
Frontier
Deal found 3/29![Frontier logo]()
$213
Best flights from San Antonio to Florida KeysDiscover carefully curated flight deals from San Antonio to Florida Keys that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 3, 2026.
Discover carefully curated flight deals from San Antonio to Florida Keys that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 3, 2026.
This Delta deal was found by Cheapflights users on 3/30. 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 5/1910:52 am
SAT
- EYW
1 stop5h 31m
Delta
Sat 5/236:19 pm
EYW
- SAT
1 stop7h 25m
Delta
Deal found 3/30![Delta logo]()
$231
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:30 pm
SAT
- EYW
1 stop13h 36m
Multiple Airlines
Wed 4/2211:51 am
EYW
- SAT
2 stops24h 49m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$277
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Tue 4/147:15 am
SAT
- EYW
1 stop8h 27m
United Airlines
Sat 4/1812:05 pm
EYW
- SAT
1 stop7h 55m
United Airlines
Deal found 3/30![United Airlines logo]()
$341
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Thu 5/75:09 pm
SAT
- EYW
1 stop4h 49m
American Airlines
Sun 5/107:30 pm
EYW
- SAT
1 stop5h 26m
American Airlines
Deal found 3/31![American Airlines logo]()
$366
This Southwest deal was found by Cheapflights users on 3/31. 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.
Sat 5/169:15 am
SAT
- MIA
2 stops6h 45m
Southwest
Tue 5/261:25 pm
MIA
- SAT
2 stops7h 50m
Southwest
Deal found 3/31![Southwest logo]()
$394
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1212:08 pm
SAT
- EYW
1 stop6h 41m
Delta
Wed 5/207:30 am
EYW
- SAT
1 stop7h 01m
Delta
Deal found 4/1![Delta logo]()
$231
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1612:08 pm
SAT
- EYW
1 stop6h 41m
Delta
Sat 5/236:19 pm
EYW
- SAT
1 stop7h 25m
Delta
Deal found 4/1![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 3/30. 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 4/287:14 am
SAT
- EYW
1 stop8h 21m
American Airlines
Tue 5/52:29 pm
EYW
- SAT
1 stop7h 29m
American Airlines
Deal found 3/30![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 3/31. 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 7/34:18 pm
SAT
- MIA
1 stop5h 22m
United Airlines
Tue 7/78:48 am
MIA
- SAT
1 stop7h 51m
United Airlines
Deal found 3/31![United Airlines logo]()
$395
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/91:20 pm
SAT
- MIA
2 stops7h 45m
Southwest
Mon 5/115:30 am
MIA
- SAT
2 stops8h 45m
Southwest
Deal found 4/1![Southwest logo]()
$405
This Delta deal was found by Cheapflights users on 3/30. 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 4/2812:26 pm
SAT
- EYW
1 stop6h 14m
Delta
Tue 5/56:23 pm
EYW
- SAT
1 stop7h 23m
Delta
Deal found 3/30![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Sun 5/244:18 pm
SAT
- MIA
1 stop5h 22m
United Airlines
Sun 5/318:48 am
MIA
- SAT
1 stop7h 51m
United Airlines
Deal found 3/29![United Airlines logo]()
$429
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.
Thu 5/72:40 pm
SAT
- MIA
1 stop7h 10m
Southwest
Mon 5/117:15 pm
MIA
- SAT
1 stop6h 00m
Southwest
Deal found 4/2![Southwest logo]()
$429
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/810:50 am
SAT
- EYW
1 stop7h 51m
Delta
Wed 4/157:33 am
EYW
- SAT
1 stop6h 26m
Delta
Deal found 4/1![Delta logo]()
$361
This Southwest deal was found by Cheapflights users on 3/30. 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.
Tue 6/92:40 pm
SAT
- MIA
2 stops7h 10m
Southwest
Mon 6/155:35 am
MIA
- SAT
2 stops8h 50m
Southwest
Deal found 3/30![Southwest logo]()
$454
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Thu 4/164:17 pm
SAT
- MIA
1 stop5h 11m
United Airlines
Tue 4/216:15 am
MIA
- SAT
1 stop7h 53m
United Airlines
Deal found 3/29![United Airlines logo]()
$456
This Delta deal was found by Cheapflights users on 3/29. 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 4/2010:42 am
SAT
- EYW
1 stop5h 41m
Delta
Sat 4/256:18 pm
EYW
- SAT
1 stop7h 28m
Delta
Deal found 3/29![Delta logo]()
$381
This Southwest deal was found by Cheapflights users on 3/31. 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.
Fri 7/243:10 pm
SAT
- MIA
2 stops8h 15m
Southwest
Thu 7/303:05 pm
MIA
- SAT
1 stop9h 15m
Southwest
Deal found 3/31![Southwest logo]()
$468
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Tue 8/47:43 am
SAT
- MIA
1 stop7h 04m
United Airlines
Fri 8/74:53 pm
MIA
- SAT
1 stop5h 20m
United Airlines
Deal found 3/30![United Airlines logo]()
$472
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.
Fri 7/106:19 pm
SAT
- MIA
1 stop5h 36m
Delta
Sat 7/181:38 pm
MIA
- SAT
1 stop9h 44m
Delta
Deal found 4/2![Delta logo]()
$411
This Delta deal was found by Cheapflights users on 3/29. 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.
Fri 7/176:19 pm
SAT
- MIA
1 stop5h 36m
Delta
Sat 7/256:00 am
MIA
- SAT
1 stop6h 09m
Delta
Deal found 3/29![Delta logo]()
$456
This Delta deal was found by Cheapflights users on 3/29. 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.
Sat 5/235:00 pm
SAT
- MIA
1 stop6h 43m
Delta
Sun 5/316:00 am
MIA
- SAT
1 stop17h 31m
Delta
Deal found 3/29![Delta logo]()
$489
Last-minute flights from San Antonio to Florida KeysDiscover last-minute flight deals from San Antonio to Florida Keys. Data last updated April 3, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Florida Keys. Data last updated April 3, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Sat 4/184:04 pm
SAT
- MIA
1 stop12h 01m
Frontier
Fri 4/2412:26 pm
MIA
- SAT
2 stops27h 43m
Frontier
Deal found 3/29![Frontier logo]()
$213
This Frontier deal was found by Cheapflights users on 3/31. 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.
Mon 4/203:00 pm
SAT
- MIA
1 stop13h 05m
Frontier
Thu 4/237:00 am
MIA
- SAT
1 stop8h 15m
Frontier
Deal found 3/31![Frontier logo]()
$180
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:00 pm
SAT
- MIA
1 stop13h 05m
Frontier
Sat 4/257:00 am
MIA
- SAT
1 stop9h 09m
Frontier
Deal found 4/2![Frontier logo]()
$205
This Priceline deal was found by Cheapflights users on 3/30. 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 4/254:04 pm
SAT
- MIA
1 stop12h 01m
Frontier
Wed 4/297:00 am
MIA
- SAT
1 stop9h 53m
Frontier
Deal found 3/30![Frontier logo]()
$201
This Frontier deal was found by Cheapflights users on 3/30. 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.
Mon 4/278:39 pm
SAT
- MIA
1 stop9h 43m
Frontier
Fri 5/18:42 am
MIA
- SAT
1 stop11h 48m
Frontier
Deal found 3/30![Frontier logo]()
$200
This eDestinos deal was found by Cheapflights users on 3/29. 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 4/273:00 pm
SAT
- MIA
1 stop13h 05m
Frontier
Mon 5/47:00 am
MIA
- SAT
1 stop8h 15m
Frontier
Deal found 3/29![Frontier logo]()
$204
This Frontier deal was found by Cheapflights users on 3/30. 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 4/284:04 pm
SAT
- MIA
1 stop12h 01m
Frontier
Fri 5/18:42 am
MIA
- SAT
1 stop11h 48m
Frontier
Deal found 3/30![Frontier logo]()
$197
This CheapOair deal was found by Cheapflights users on 3/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/13:00 pm
SAT
- MIA
1 stop13h 05m
Frontier
Mon 5/119:41 pm
MIA
- SAT
1 stop23h 33m
Frontier
Deal found 3/31![Frontier logo]()
$191
This Expedia deal was found by Cheapflights users on 3/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:59 pm
SAT
- MIA
1 stop9h 01m
Frontier
Fri 5/89:41 pm
MIA
- SAT
1 stop23h 33m
Frontier
Deal found 3/30![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 5/77:54 pm
SAT
- MIA
1 stop8h 44m
Frontier
Mon 5/116:00 am
MIA
- SAT
2 stops37h 59m
Frontier
Deal found 3/31![Frontier logo]()
$208
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:54 pm
SAT
- MIA
1 stop8h 44m
Frontier
Sun 5/109:41 pm
MIA
- SAT
1 stop23h 33m
Frontier
Deal found 3/30![Frontier logo]()
$211
This Expedia deal was found by Cheapflights users on 3/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:59 pm
SAT
- MIA
1 stop9h 01m
Frontier
Tue 5/268:10 pm
MIA
- SAT
1 stop25h 04m
Frontier
Deal found 3/31![Frontier logo]()
$185
One-way flights from San Antonio to Florida KeysSearch for one-way flight options from San Antonio to Florida Keys. Find affordable one-way fares based on user searches. Data last updated April 3, 2026.
Search for one-way flight options from San Antonio to Florida Keys. Find affordable one-way fares based on user searches. Data last updated April 3, 2026.
This Frontier deal was found by Cheapflights users on 3/29. 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.
Mon 4/278:39 pm
SAT
- MIA
1 stop9h 43m
Frontier
Deal found 3/29![Frontier logo]()
$80
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.
Tue 4/284:04 pm
SAT
- MIA
1 stop12h 01m
Frontier
Deal found 4/2![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Wed 4/224:49 pm
SAT
- MIA
2 stops30h 20m
Frontier
Deal found 3/31![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 3/31. 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.
Sun 5/179:09 pm
SAT
- MIA
1 stop8h 51m
Frontier
Deal found 3/31![Frontier logo]()
$100
This Trip.com deal was found by Cheapflights users on 3/30. 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.
Wed 4/294:49 pm
SAT
- MIA
1 stop11h 16m
Frontier
Deal found 3/30![Frontier logo]()
$101
This Priceline deal was found by Cheapflights users on 3/31. 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.
Wed 6/247:51 pm
SAT
- MIA
1 stop9h 03m
Frontier
Deal found 3/31![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Sat 4/254:04 pm
SAT
- MIA
1 stop12h 01m
Frontier
Deal found 3/29![Frontier logo]()
$109
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/43:00 pm
SAT
- MIA
1 stop13h 05m
Frontier
Deal found 4/2![Frontier logo]()
$113
Find 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, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $180 (Frontier) |
One-way from | $80 (Frontier) |
Popular in | December |
Cheapest in | October |
Average price | $382 |
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, 2026.
Use the filters below to find and compare flights from San Antonio to Florida Keys that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Tue 5/19
10:52 am-5:23 pm
1 stop5h 31m
Key West
Sat 5/23
6:19 pm-12:44 am
1 stop7h 25m
$231
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Tue 5/12
12:08 pm-7:49 pm
1 stop6h 41m
Key West
Wed 5/20
7:30 am-1:31 pm
1 stop7h 01m
$231
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Sat 4/18
6:30 pm-9:06 am
1 stop13h 36m
Key West
Wed 4/22
11:51 am-11:40 am
2 stops24h 49m
$277
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Sat 5/16
12:08 pm-7:49 pm
1 stop6h 41m
Key West
Sat 5/23
6:19 pm-12:44 am
1 stop7h 25m
$319
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Tue 4/14
7:15 am-4:42 pm
1 stop8h 27m
Key West
Sat 4/18
12:05 pm-7:00 pm
1 stop7h 55m
$341
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Tue 4/28
12:26 pm-7:40 pm
1 stop6h 14m
Key West
Tue 5/5
6:23 pm-12:46 am
1 stop7h 23m
$344
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Wed 4/8
10:50 am-7:41 pm
1 stop7h 51m
Key West
Wed 4/15
7:33 am-12:59 pm
1 stop6h 26m
$361
Quickest round-trip
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Thu 5/7
5:09 pm-10:58 pm
1 stop4h 49m
Key West
Sun 5/10
7:30 pm-11:56 pm
1 stop5h 26m
$366
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Tue 4/28
7:14 am-4:35 pm
1 stop8h 21m
Key West
Tue 5/5
2:29 pm-8:58 pm
1 stop7h 29m
$374
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Mon 4/20
10:42 am-5:23 pm
1 stop5h 41m
Key West
Sat 4/25
6:18 pm-12:46 am
1 stop7h 28m
$381
Showing 1-10 of 32 resultsSorted by cheapest first
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.
SAT-MIA
SAT-EYW
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
SAT-zzEOA
SAT-MIA
SAT-EYW
What is the cheapest month to book a flight from San Antonio to Florida Keys?
Currently, January is the cheapest month in which you can book a flight from San Antonio to Florida Keys (average of $126). Flying from San Antonio to Florida Keys in December is currently the most expensive (average of $290). 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 April 3, 2026.
Read through reviews of airlines operating flights from San Antonio to Florida Keys, such as Southwest,Delta, andUnited 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.
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
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.
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Alternative routes for San Antonio to Florida Keys
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Complete your trip
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San Antonio and Florida Keys flights
Browse other San Antonio and Florida Keys flight options. Last updated on April 3, 2026.
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San Antonio to Florida Keys flights
Consider these flights traveling from San Antonio to Florida Keys.
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, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$227 | Average$359 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$230 | Average$439 | FlexibilityNo cancel fee | On-time71% |