$109+ Cheap flights from San Antonio to Key West (SAT - EYW)
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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — EYW
Mar 15 — Mar 221
1 adult, Economy
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Find cheap flights from San Antonio to Key West 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.Cheap flight deals from San Antonio to Key West
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Best
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Cheapest flights from San Antonio to Key WestExplore 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 13, 2026.
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 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/26:00 am
SAT
- EYW
1 stop5h 26m
Multiple Airlines
Thu 3/59:46 am
EYW
- SAT
1 stop28h 52m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/116:00 am
SAT
- EYW
1 stop26h 06m
Multiple Airlines
Mon 3/162:35 pm
EYW
- SAT
1 stop19h 52m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$219
This American Airlines deal was found by Cheapflights users on 2/12. 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 9/166:33 am
SAT
- EYW
1 stop5h 58m
American Airlines
Sat 9/191:28 pm
EYW
- SAT
1 stop7h 33m
American Airlines
Deal found 2/12![American Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/1210:22 am
SAT
- EYW
1 stop26h 15m
Spirit Airlines
Thu 3/1912:25 pm
EYW
- SAT
1 stop22h 02m
Spirit Airlines
Deal found 2/12![Spirit Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/66:00 pm
SAT
- EYW
2 stops16h 30m
Multiple Airlines
Fri 4/101:06 pm
EYW
- SAT
1 stop24h 21m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/122:13 pm
SAT
- EYW
2 stops22h 24m
Multiple Airlines
Thu 3/1912:25 pm
EYW
- SAT
1 stop22h 02m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 5/1110:26 am
SAT
- EYW
2 stops25h 08m
Multiple Airlines
Fri 5/1512:10 pm
EYW
- SAT
1 stop11h 08m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 2/2610:26 am
SAT
- EYW
2 stops21h 43m
Multiple Airlines
Mon 3/21:06 pm
EYW
- SAT
1 stop11h 53m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$318
Best flights from San Antonio to Key WestDiscover carefully curated flight deals from San Antonio to Key West that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 13, 2026.
Discover carefully curated flight deals from San Antonio to Key West that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/116:00 am
SAT
- EYW
1 stop26h 06m
Multiple Airlines
Mon 3/162:35 pm
EYW
- SAT
1 stop19h 52m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$219
This Mytrip deal was found by Cheapflights users on 2/10. 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.
Mon 4/61:22 pm
SAT
- EYW
3 stops21h 08m
Spirit Airlines
Fri 4/102:35 pm
EYW
- SAT
2 stops22h 52m
Spirit Airlines
Deal found 2/10![Spirit Airlines logo]()
$387
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Fri 4/106:20 am
SAT
- EYW
1 stop8h 04m
American Airlines
Sun 4/127:30 pm
EYW
- SAT
1 stop5h 26m
American Airlines
Deal found 2/12![American Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/26:00 am
SAT
- EYW
1 stop5h 26m
Multiple Airlines
Thu 3/54:22 pm
EYW
- SAT
2 stops18h 08m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/66:00 pm
SAT
- EYW
2 stops16h 30m
Multiple Airlines
Fri 4/101:06 pm
EYW
- SAT
1 stop24h 21m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/122:13 pm
SAT
- EYW
2 stops22h 24m
Multiple Airlines
Thu 3/1912:25 pm
EYW
- SAT
1 stop22h 02m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$301
This Mytrip deal was found by Cheapflights users on 2/12. 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 4/91:22 pm
SAT
- EYW
3 stops23h 15m
Spirit Airlines
Sun 4/1212:25 pm
EYW
- SAT
2 stops25h 02m
Spirit Airlines
Deal found 2/12![Spirit Airlines logo]()
$415
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Fri 2/275:00 am
SAT
- EYW
1 stop7h 15m
American Airlines
Tue 3/33:51 pm
EYW
- SAT
2 stops9h 04m
American Airlines
Deal found 2/12![American Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 2/2610:26 am
SAT
- EYW
1 stop26h 04m
Multiple Airlines
Mon 3/21:06 pm
EYW
- SAT
1 stop11h 53m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 5/1410:26 am
SAT
- EYW
2 stops27h 17m
Multiple Airlines
Sun 5/1712:06 pm
EYW
- SAT
1 stop22h 05m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 4/3010:26 am
SAT
- EYW
2 stops21h 43m
Multiple Airlines
Sun 5/312:06 pm
EYW
- SAT
1 stop22h 05m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$470
Last-minute flights from San Antonio to Key WestDiscover last-minute flight deals from San Antonio to Key West. Data last updated February 13, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Key West. Data last updated February 13, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 2/11. 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 2/141:09 pm
SAT
- EYW
1 stop8h 28m
American Airlines
Mon 2/167:45 pm
EYW
- SAT
1 stop5h 14m
American Airlines
Deal found 2/11![American Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 2/2610:26 am
SAT
- EYW
2 stops21h 43m
Multiple Airlines
Mon 3/21:06 pm
EYW
- SAT
1 stop11h 53m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$318
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Fri 2/275:00 am
SAT
- EYW
1 stop7h 15m
American Airlines
Tue 3/37:45 pm
EYW
- SAT
1 stop5h 14m
American Airlines
Deal found 2/12![American Airlines logo]()
$412
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/26:00 am
SAT
- EYW
1 stop5h 26m
Multiple Airlines
Thu 3/59:46 am
EYW
- SAT
1 stop28h 52m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/116:00 am
SAT
- EYW
1 stop26h 06m
Multiple Airlines
Mon 3/162:35 pm
EYW
- SAT
1 stop19h 52m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/1210:22 am
SAT
- EYW
1 stop26h 15m
Spirit Airlines
Thu 3/1912:25 pm
EYW
- SAT
1 stop22h 02m
Spirit Airlines
Deal found 2/12![Spirit Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/122:13 pm
SAT
- EYW
2 stops22h 24m
Multiple Airlines
Thu 3/1912:25 pm
EYW
- SAT
1 stop22h 02m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/1310:22 am
SAT
- EYW
2 stops24h 13m
Multiple Airlines
Tue 3/1712:25 pm
EYW
- SAT
1 stop22h 02m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$339
One-way flights from San Antonio to Key WestSearch for one-way flight options from San Antonio to Key West. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
Search for one-way flight options from San Antonio to Key West. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Tue 3/312:13 pm
SAT
- EYW
1 stop19h 58m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/3010:22 am
SAT
- EYW
1 stop24h 08m
Spirit Airlines
Deal found 2/11![Spirit Airlines logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/11:22 pm
SAT
- EYW
1 stop18h 44m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/41:22 pm
SAT
- EYW
1 stop18h 44m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Sun 3/2910:22 am
SAT
- EYW
1 stop26h 15m
Spirit Airlines
Deal found 2/11![Spirit Airlines logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Sun 3/2910:22 am
SAT
- EYW
2 stops21h 47m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 3/302:13 pm
SAT
- EYW
2 stops20h 17m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/21:22 pm
SAT
- EYW
2 stops23h 15m
Spirit Airlines
Deal found 2/11![Spirit Airlines logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 4/36:00 pm
SAT
- EYW
2 stops39h 21m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$208
Find 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 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $207 (Kiwi.com) |
One-way from | $109 (Kiwi.com) |
Popular in | June |
Cheapest in | August |
Average price | $499 |
Cheapflights Fare Finder
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 13, 2026.
Use the filters below to find and compare flights from San Antonio to Key West that are best for you.
Fly from
San Antonio
Fly to
Key West
Route
Depart
Return
Price
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Wed 3/11
6:00 am-9:06 am
1 stop26h 06m
Key West
Mon 3/16
2:35 pm-9:27 am
1 stop19h 52m
$219
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Mon 3/2
6:00 am-12:26 pm
1 stop5h 26m
Key West
Thu 3/5
4:22 pm-9:30 am
2 stops18h 08m
$263
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Mon 4/6
6:00 pm-11:30 am
2 stops16h 30m
Key West
Fri 4/10
1:06 pm-12:27 pm
1 stop24h 21m
$288
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Thu 3/12
2:13 pm-1:37 pm
2 stops22h 24m
Key West
Thu 3/19
12:25 pm-9:27 am
1 stop22h 02m
$301
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Thu 2/26
10:26 am-1:30 pm
1 stop26h 04m
Key West
Mon 3/2
1:06 pm-11:59 pm
1 stop11h 53m
$360
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Mon 4/6
1:22 pm-11:30 am
3 stops21h 08m
Key West
Fri 4/10
2:35 pm-12:27 pm
2 stops22h 52m
$387
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Fri 4/10
6:20 am-3:24 pm
1 stop8h 04m
Key West
Sun 4/12
7:30 pm-11:56 pm
1 stop5h 26m
$391
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Thu 5/14
10:26 am-2:43 pm
2 stops27h 17m
Key West
Sun 5/17
12:06 pm-9:11 am
1 stop22h 05m
$391
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Thu 4/9
1:22 pm-1:37 pm
3 stops23h 15m
Key West
Sun 4/12
12:25 pm-12:27 pm
2 stops25h 02m
$415
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Fri 2/27
5:00 am-1:15 pm
1 stop7h 15m
Key West
Tue 3/3
3:51 pm-11:55 pm
2 stops9h 04m
$417
Showing 1-10 of 18 results
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.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
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 Key West
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 13, 2026.
Peruse reviews from past customers who have flown with Delta and American Airlines from San Antonio to Key West to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
2.0
MediocreJoseph,Aug 2023
MSP - MCO
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
2.0
MediocreJoseph,Aug 2023
MSP - MCO
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
2.0
MediocreJoseph,Aug 2023
MSP - MCO
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.
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Other flights to Key West
Explore flights to Key West departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 13, 2026.
San Antonio and Key West flights
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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 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$227 | Average$351 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$236 | Average$448 | FlexibilityNo cancel fee | On-time71% |