$163+ Cheap flights from San Antonio to Key West (SAT - EYW)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — EYW
Dec 9 — Dec 161
Round-trip
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
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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 November 9, 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 November 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/126:47 pm -
2 stops14h 32m
Tue 12/1510:59 am -
1 stop25h 41m
Deal found 11/5![Multiple Airlines logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/138:47 pm -
2 stops12h 32m
Tue 12/1510:59 am -
1 stop25h 41m
Deal found 11/5![Multiple Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 11/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:01 am -
1 stop4h 55m
Fri 12/112:36 pm -
1 stop8h 24m
Deal found 11/4![American Airlines logo]()
$407
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/241:34 pm -
2 stops19h 45m
Thu 12/3110:59 am -
1 stop26h 33m
Deal found 11/8![Multiple Airlines logo]()
$435
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Sat 12/125:01 am -
1 stop7h 13m
Tue 12/156:35 pm -
1 stop5h 08m
Deal found 11/5![American Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/281:27 pm -
1 stop19h 52m
Thu 12/313:10 pm -
2 stops21h 48m
Deal found 11/8![Multiple Airlines logo]()
$482
This Delta deal was found by Cheapflights users on 11/8. 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 12/2411:03 am -
1 stop5h 20m
Wed 12/307:15 am -
1 stop5h 36m
Deal found 11/8![Delta logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/241:34 pm -
2 stops19h 45m
Wed 12/301:22 pm -
1 stop20h 23m
Deal found 11/8![Multiple Airlines logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 12/231:27 pm -
1 stop19h 52m
Sun 12/276:20 pm -
2 stops50h 15m
Deal found 11/9![Multiple Airlines logo]()
$511
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 November 9, 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 November 9, 2026.
This American Airlines deal was found by Cheapflights users on 11/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:01 am -
1 stop4h 55m
Fri 12/112:36 pm -
1 stop8h 24m
Deal found 11/4![American Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 11/8. 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 12/251:00 pm -
1 stop6h 57m
Thu 12/316:22 pm -
1 stop5h 59m
Deal found 11/8![Delta logo]()
$613
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/146:35 am -
1 stop7h 51m
Thu 12/174:04 pm -
1 stop7h 55m
Deal found 11/6![United Airlines logo]()
$755
This American Airlines deal was found by Cheapflights users on 11/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/49:23 am -
1 stop6h 15m
Sat 1/99:58 am -
2 stops10h 21m
Deal found 11/7![American Airlines logo]()
$539
This American Airlines deal was found by Cheapflights users on 11/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/56:04 am -
2 stops10h 22m
Sat 1/91:53 pm -
2 stops10h 05m
Deal found 11/7![American Airlines logo]()
$649
This American Airlines deal was found by Cheapflights users on 11/8. 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 11/246:07 am -
1 stop8h 57m
Fri 11/274:43 pm -
1 stop6h 56m
Deal found 11/8![American Airlines logo]()
$684
Last-minute flights from San Antonio to Key WestDiscover last-minute flight deals from San Antonio to Key West. Data last updated November 9, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Key West. Data last updated November 9, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 11/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:01 am -
1 stop4h 55m
Fri 12/112:36 pm -
1 stop8h 24m
Deal found 11/4![American Airlines logo]()
$407
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/126:47 pm -
2 stops14h 32m
Tue 12/1510:59 am -
1 stop25h 41m
Deal found 11/5![Multiple Airlines logo]()
$332
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Sat 12/125:01 am -
1 stop7h 13m
Tue 12/156:35 pm -
1 stop5h 08m
Deal found 11/5![American Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/138:47 pm -
2 stops12h 32m
Tue 12/1510:59 am -
1 stop25h 41m
Deal found 11/5![Multiple Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 12/231:27 pm -
1 stop19h 52m
Sun 12/276:20 pm -
2 stops50h 15m
Deal found 11/9![Multiple Airlines logo]()
$511
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/241:34 pm -
2 stops19h 45m
Thu 12/3110:59 am -
1 stop26h 33m
Deal found 11/8![Multiple Airlines logo]()
$435
This Delta deal was found by Cheapflights users on 11/8. 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 12/2411:03 am -
1 stop5h 20m
Wed 12/307:15 am -
1 stop5h 36m
Deal found 11/8![Delta logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/241:34 pm -
2 stops19h 45m
Wed 12/301:22 pm -
1 stop20h 23m
Deal found 11/8![Multiple Airlines logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/281:27 pm -
1 stop19h 52m
Thu 12/313:10 pm -
2 stops21h 48m
Deal found 11/8![Multiple Airlines logo]()
$482
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 November 9, 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 November 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/9. 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.
Thu 1/289:50 am -
2 stops23h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Breeze Airways logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 11/9. 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.
Thu 1/289:50 am -
3 stops25h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Tue 12/810:52 pm -
2 stops34h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Multiple Airlines logo]()
$240
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:35 am -
1 stop7h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![United Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 11/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/286:38 am -
1 stop7h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![United Airlines logo]()
$348
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 November 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $332 (Kiwi.com) |
One-way from | $163 (Kiwi.com) |
Popular in | March |
Cheapest in | April |
Average price | $516 |
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 7,457,451 searches. Data last updated November 9, 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 San Antonio - EYW Key West
SATEYW
San Antonio
Thu 1/28
9:50 am-10:19 am
2 stops23h 29m
Key West
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$163
San AntonioKey West
SAT San Antonio - EYW Key West
SATEYW
San Antonio
Thu 1/28
9:50 am-12:19 pm
3 stops25h 29m
Key West
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$201
San AntonioKey West
SAT San Antonio - EYW Key West
SATEYW
San Antonio
Tue 12/8
10:52 pm-10:19 am
3 stops34h 27m
Key West
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$240
San AntonioKey West
SAT San Antonio - EYW Key West
SATEYW
San Antonio
Tue 12/8
6:35 am-3:26 pm
1 stop7h 51m
Key West
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$334
Quickest round-trip
San AntonioKey West
SAT San Antonio - EYW Key West
SATEYW
San Antonio
Thu 1/28
6:38 am-3:22 pm
1 stop7h 44m
Key West
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$348
San AntonioKey West
SAT San Antonio - EYW Key West
SATEYW
San Antonio
Fri 12/4
5:01 am-10:56 am
1 stop4h 55m
Key West
Fri 12/11
2:36 pm-10:00 pm
1 stop8h 24m
$407
San AntonioKey West
SAT San Antonio - EYW Key West
SATEYW
San Antonio
Mon 1/4
9:23 am-4:38 pm
1 stop6h 15m
Key West
Sat 1/9
9:58 am-7:19 pm
2 stops10h 21m
$539
San AntonioKey West
SAT San Antonio - EYW Key West
SATEYW
San Antonio
Fri 12/25
1:00 pm-8:57 pm
1 stop6h 57m
Key West
Thu 12/31
6:22 pm-11:21 pm
1 stop5h 59m
$613
San AntonioKey West
SAT San Antonio - EYW Key West
SATEYW
San Antonio
Tue 1/5
6:04 am-5:26 pm
2 stops10h 22m
Key West
Sat 1/9
1:53 pm-10:58 pm
2 stops10h 05m
$649
San AntonioKey West
SAT San Antonio - EYW Key West
SATEYW
San Antonio
Tue 11/24
6:07 am-4:04 pm
1 stop8h 57m
Key West
Fri 11/27
4:43 pm-10:39 pm
1 stop6h 56m
$684
Showing 1-10 of 11 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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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 $653). 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?
Airfare is below average for this route at the moment.
San Antonio to Key West flights typically cost between $408 and $742 in December.The cheapest round-trip price found within the last 5 days was $332 on Multiple Airlines (Dec 12-Dec 15).
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 November 9, 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.
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Overall
7.8
Crew
8.5
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Overall
7.8
Crew
8.5
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Overall
7.8
Crew
8.5
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 November 9, 2026.
San Antonio and Key West flights
Browse other San Antonio and Key West flight options. Last updated on November 9, 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 November 9, 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 7,457,451 searches. Data last updated November 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$237 | Average$415 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$288 | Average$423 | FlexibilityNo cancel fee | On-timeN/A |