$191+ 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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — EYW
Jun 13 — Jun 201
Round-trip
1 adult, Economy
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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 May 14, 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 May 14, 2026.
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:45 am
SAT
- EYW
1 stop5h 26m
Delta
Sat 10/317:00 am
EYW
- SAT
1 stop7h 22m
Delta
Deal found 5/12![Delta logo]()
$231
This American Airlines deal was found by Cheapflights users on 5/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:00 pm
SAT
- EYW
1 stop4h 27m
American Airlines
Sat 9/127:51 pm
EYW
- SAT
1 stop4h 32m
American Airlines
Deal found 5/9![American Airlines logo]()
$241
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/242:01 pm
SAT
- EYW
1 stop7h 10m
United Airlines
Sat 10/314:05 pm
EYW
- SAT
1 stop8h 03m
United Airlines
Deal found 5/11![United Airlines logo]()
$259
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:40 am
SAT
- EYW
1 stop5h 03m
Delta
Wed 7/87:50 am
EYW
- SAT
1 stop6h 42m
Delta
Deal found 5/11![Delta logo]()
$265
This American Airlines deal was found by Cheapflights users on 5/11. 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.
Wed 6/1010:00 am
SAT
- EYW
1 stop7h 49m
American Airlines
Wed 6/177:40 pm
EYW
- SAT
1 stop5h 19m
American Airlines
Deal found 5/11![American Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1012:04 pm
SAT
- EYW
1 stop6h 47m
Delta
Mon 7/137:50 am
EYW
- SAT
1 stop6h 42m
Delta
Deal found 5/12![Delta logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 5/9. 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.
Wed 7/154:53 pm
SAT
- EYW
2 stops21h 34m
Multiple Airlines
Thu 7/238:48 pm
EYW
- SAT
1 stop19h 53m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$306
This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:45 am
SAT
- EYW
1 stop5h 26m
Delta
Tue 11/177:00 am
EYW
- SAT
1 stop7h 22m
Delta
Deal found 5/10![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2312:05 pm
SAT
- EYW
1 stop6h 48m
Delta
Tue 6/3011:48 am
EYW
- SAT
1 stop6h 44m
Delta
Deal found 5/11![Delta logo]()
$329
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 May 14, 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 May 14, 2026.
This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:45 am
SAT
- EYW
1 stop5h 26m
Delta
Tue 11/177:00 am
EYW
- SAT
1 stop7h 22m
Delta
Deal found 5/10![Delta logo]()
$314
This American Airlines deal was found by Cheapflights users on 5/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:35 am
SAT
- EYW
2 stops10h 52m
American Airlines
Sat 9/1212:05 pm
EYW
- SAT
2 stops8h 53m
American Airlines
Deal found 5/9![American Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/49:55 am
SAT
- EYW
1 stop23h 32m
Multiple Airlines
Sun 6/74:12 pm
EYW
- SAT
2 stops19h 38m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$451
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2312:04 pm
SAT
- EYW
1 stop6h 47m
Delta
Tue 7/286:18 pm
EYW
- SAT
1 stop7h 06m
Delta
Deal found 5/9![Delta logo]()
$393
This American Airlines deal was found by Cheapflights users on 5/12. 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 7/85:01 am
SAT
- EYW
1 stop7h 13m
American Airlines
Sat 7/117:55 pm
EYW
- SAT
1 stop5h 04m
American Airlines
Deal found 5/12![American Airlines logo]()
$526
This Kiwi.com deal was found by Cheapflights users on 5/9. 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.
Tue 6/168:56 pm
SAT
- EYW
2 stops13h 10m
Multiple Airlines
Fri 6/1912:07 pm
EYW
- SAT
1 stop28h 30m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$639
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:01 am
SAT
- EYW
1 stop9h 06m
American Airlines
Mon 6/157:40 pm
EYW
- SAT
1 stop5h 19m
American Airlines
Deal found 5/10![American Airlines logo]()
$633
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:25 am
SAT
- EYW
1 stop5h 47m
Delta
Sat 6/66:19 pm
EYW
- SAT
1 stop7h 25m
Delta
Deal found 5/11![Delta logo]()
$637
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Wed 10/1410:34 am
SAT
- EYW
1 stop22h 45m
Multiple Airlines
Sun 10/2510:59 am
EYW
- SAT
1 stop23h 40m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$645
This American Airlines deal was found by Cheapflights users on 5/13. 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 6/1510:00 am
SAT
- EYW
1 stop7h 49m
American Airlines
Sat 6/2012:10 pm
EYW
- SAT
1 stop8h 32m
American Airlines
Deal found 5/13![American Airlines logo]()
$649
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:25 am
SAT
- EYW
1 stop6h 43m
Delta
Sun 6/76:24 pm
EYW
- SAT
1 stop7h 09m
Delta
Deal found 5/11![Delta logo]()
$672
Last-minute flights from San Antonio to Key WestDiscover last-minute flight deals from San Antonio to Key West. Data last updated May 14, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Key West. Data last updated May 14, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/13. 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 5/135:09 pm
SAT
- EYW
1 stop4h 49m
American Airlines
Wed 5/202:29 pm
EYW
- SAT
1 stop6h 15m
American Airlines
Deal found 5/13![American Airlines logo]()
$383
This American Airlines deal was found by Cheapflights users on 5/11. 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.
Wed 6/1010:00 am
SAT
- EYW
1 stop7h 49m
American Airlines
Wed 6/177:40 pm
EYW
- SAT
1 stop5h 19m
American Airlines
Deal found 5/11![American Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2312:05 pm
SAT
- EYW
1 stop6h 48m
Delta
Tue 6/3011:48 am
EYW
- SAT
1 stop6h 44m
Delta
Deal found 5/11![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 5/13. 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 6/235:01 am
SAT
- EYW
1 stop7h 06m
American Airlines
Tue 6/307:40 pm
EYW
- SAT
1 stop5h 19m
American Airlines
Deal found 5/13![American Airlines logo]()
$376
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:40 am
SAT
- EYW
1 stop5h 03m
Delta
Wed 7/87:50 am
EYW
- SAT
1 stop6h 42m
Delta
Deal found 5/11![Delta logo]()
$265
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 May 14, 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 May 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 7/611:30 am
SAT
- EYW
2 stops24h 04m
Breeze Airways
Deal found 5/11![Breeze Airways logo]()
$191
This United Airlines deal was found by Cheapflights users on 5/13. 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 8/66:40 am
SAT
- EYW
1 stop7h 39m
United Airlines
Deal found 5/13![United Airlines logo]()
$304
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/66:40 am
SAT
- EYW
1 stop5h 48m
Delta
Deal found 5/11![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 5/13. 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 8/68:10 am
SAT
- EYW
2 stops10h 29m
American Airlines
Deal found 5/13![American Airlines logo]()
$353
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 May 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $231 (Delta) |
One-way from | $191 (Kiwi.com) |
Popular in | March |
Cheapest in | April |
Average price | $378 |
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 May 14, 2026.
Use the filters below to find and compare flights from San Antonio to Key West that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Fri 11/6
10:45 am-5:11 pm
1 stop5h 26m
Key West
Tue 11/17
7:00 am-1:22 pm
1 stop7h 22m
$314
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Wed 9/9
6:35 am-6:27 pm
2 stops10h 52m
Key West
Sat 9/12
12:05 pm-7:58 pm
2 stops8h 53m
$378
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Thu 7/23
12:04 pm-7:51 pm
1 stop6h 47m
Key West
Tue 7/28
6:18 pm-12:24 am
1 stop7h 06m
$393
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Thu 6/4
9:55 am-10:27 am
1 stop23h 32m
Key West
Sun 6/7
4:12 pm-10:50 am
2 stops19h 38m
$451
Quickest round-trip
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Wed 7/8
5:01 am-1:14 pm
1 stop7h 13m
Key West
Sat 7/11
7:55 pm-11:59 pm
1 stop5h 04m
$526
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Mon 6/8
6:01 am-4:07 pm
1 stop9h 06m
Key West
Mon 6/15
7:40 pm-11:59 pm
1 stop5h 19m
$633
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Sat 6/6
5:25 am-12:12 pm
1 stop5h 47m
Key West
Sat 6/6
6:19 pm-12:44 am
1 stop7h 25m
$637
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Tue 6/16
8:56 pm-11:06 am
2 stops13h 10m
Key West
Fri 6/19
12:07 pm-3:37 pm
1 stop28h 30m
$639
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Wed 10/14
10:34 am-10:19 am
1 stop22h 45m
Key West
Sun 10/25
10:59 am-9:39 am
1 stop23h 40m
$645
San AntonioKey West
SAT - EYW
SATEYW
San Antonio
Mon 6/15
10:00 am-6:49 pm
1 stop7h 49m
Key West
Sat 6/20
12:10 pm-7:42 pm
1 stop8h 32m
$649
Showing 1-10 of 15 resultsSorted by cheapest first
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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | 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
What is the cheapest month to book a flight from San Antonio to Key West?
Currently, April is the cheapest month in which you can book a flight from San Antonio to Key West (average of $258). Flying from San Antonio to Key West in March is currently the most expensive (average of $617). 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.
How much does it cost to fly round-trip 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 May 14, 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
Comfort
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Crew
8.5
Comfort
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Crew
8.5
Comfort
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
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 May 14, 2026.
San Antonio and Key West flights
Browse other San Antonio and Key West flight options. Last updated on May 14, 2026.
Other flights from San Antonio
Browse through other flights departing from San Antonio. Flights are based on user searches made on Cheapflights and were last updated on May 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 May 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$224 | Average$445 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$227 | Average$408 | FlexibilityNo cancel fee | On-timeN/A |