Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Antonio to Key West from $191

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Key West departing on 7/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Antonio to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
10:45 am - 5:11 pm
SAT
-
EYW
5h 26m
1 stop
Delta Logo
7:00 am - 1:22 pm
EYW
-
SAT
7h 22m
1 stop
$231Delta
Sat, Oct 24 - Sat, Oct 31
American Airlines Logo
7:00 am - 7:39 pm
SAT
-
EYW
11h 39m
2 stops
American Airlines Logo
8:09 pm - 11:59 pm
EYW
-
SAT
4h 50m
1 stop
$236American Airlines
Wed, Aug 12 - Wed, Aug 26
Delta Logo
10:46 am - 5:20 pm
SAT
-
EYW
5h 34m
1 stop
Delta Logo
7:40 am - 1:18 pm
EYW
-
SAT
6h 38m
1 stop
$241Delta
Wed, Aug 12 - Tue, Aug 18
American Airlines Logo
6:35 am - 6:27 pm
SAT
-
EYW
10h 52m
2 stops
American Airlines Logo
7:51 pm - 11:23 pm
EYW
-
SAT
4h 32m
1 stop
$246American Airlines
Wed, Sep 9 - Sat, Sep 12
United Airlines Logo
2:01 pm - 10:11 pm
SAT
-
EYW
7h 10m
1 stop
United Airlines Logo
4:05 pm - 11:08 pm
EYW
-
SAT
8h 03m
1 stop
$259United Airlines
Sat, Oct 24 - Sat, Oct 31
Delta Logo
7:40 am - 1:43 pm
SAT
-
EYW
5h 03m
1 stop
Delta Logo
7:50 am - 1:32 pm
EYW
-
SAT
6h 42m
1 stop
$265Delta
Mon, Jun 29 - Wed, Jul 8
American Airlines Logo
10:00 am - 6:49 pm
SAT
-
EYW
7h 49m
1 stop
American Airlines Logo
7:40 pm - 11:59 pm
EYW
-
SAT
5h 19m
1 stop
$277American Airlines
Wed, Jun 10 - Wed, Jun 17
American Airlines Logo
7:00 am - 7:39 pm
SAT
-
EYW
11h 39m
2 stops
American Airlines Logo
1:50 pm - 7:26 pm
EYW
-
SAT
6h 36m
1 stop
$282American Airlines
Wed, Aug 12 - Tue, Aug 18
American Airlines Logo
7:00 am - 7:39 pm
SAT
-
EYW
11h 39m
2 stops
American Airlines Logo
11:30 am - 7:26 pm
EYW
-
SAT
8h 56m
2 stops
$287American Airlines
Wed, Aug 12 - Wed, Aug 26
Multiple Airlines Logo
4:53 pm - 3:27 pm
SAT
-
EYW
21h 34m
2 stops
Multiple Airlines Logo
8:48 pm - 3:41 pm
EYW
-
SAT
19h 53m
1 stop
$306Multiple Airlines
Wed, Jul 15 - Thu, Jul 23

American Airlines flights from San Antonio to Key West

Our best American Airlines deals on San Antonio to Key West flight tickets
American Airlines
Aug 12
SAT7:00 amSan Antonio
11h 39m
2 stops
EYW7:39 pmKey West
Aug 26
EYW8:09 pmKey West
4h 50m
1 stop
SAT11:59 pmSan Antonio
$236
American Airlines
Sep 9
SAT6:35 amSan Antonio
10h 52m
2 stops
EYW6:27 pmKey West
Sep 12
EYW7:51 pmKey West
4h 32m
1 stop
SAT11:23 pmSan Antonio
$246
American Airlines
Jun 10
SAT10:00 amSan Antonio
7h 49m
1 stop
EYW6:49 pmKey West
Jun 17
EYW7:40 pmKey West
5h 19m
1 stop
SAT11:59 pmSan Antonio
$277

Delta flights from San Antonio to Key West

Our best Delta deals on San Antonio to Key West flight tickets
Delta
Oct 24
SAT10:45 amSan Antonio
5h 26m
1 stop
EYW5:11 pmKey West
Oct 31
EYW7:00 amKey West
7h 22m
1 stop
SAT1:22 pmSan Antonio
$231
Delta
Aug 12
SAT10:46 amSan Antonio
5h 34m
1 stop
EYW5:20 pmKey West
Aug 18
EYW7:40 amKey West
6h 38m
1 stop
SAT1:18 pmSan Antonio
$241
Delta
Jun 29
SAT7:40 amSan Antonio
5h 03m
1 stop
EYW1:43 pmKey West
Jul 8
EYW7:50 amKey West
6h 42m
1 stop
SAT1:32 pmSan Antonio
$265

momondo 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, momondo users made 832,500 searches. Data last updated May 12, 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

Price

Cheapest round-trip

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Sat 10/24

10:45 am-5:11 pm

1 stop5h 26m

Key West

Sat 10/31

7:00 am-1:22 pm

1 stop7h 22m

$231

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 8/12

7:00 am-7:39 pm

2 stops11h 39m

Key West

Wed 8/26

8:09 pm-11:59 pm

1 stop4h 50m

$236

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 8/12

10:46 am-5:20 pm

1 stop5h 34m

Key West

Tue 8/18

7:40 am-1:18 pm

1 stop6h 38m

$241

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

7:51 pm-11:23 pm

1 stop4h 32m

$246

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Sat 10/24

2:01 pm-10:11 pm

1 stop7h 10m

Key West

Sat 10/31

4:05 pm-11:08 pm

1 stop8h 03m

$259
Quickest round-trip

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Mon 6/29

7:40 am-1:43 pm

1 stop5h 03m

Key West

Wed 7/8

7:50 am-1:32 pm

1 stop6h 42m

$265

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 6/10

10:00 am-6:49 pm

1 stop7h 49m

Key West

Wed 6/17

7:40 pm-11:59 pm

1 stop5h 19m

$277

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 8/12

7:00 am-7:39 pm

2 stops11h 39m

Key West

Tue 8/18

1:50 pm-7:26 pm

1 stop6h 36m

$282

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 8/12

7:00 am-7:39 pm

2 stops11h 39m

Key West

Wed 8/26

11:30 am-7:26 pm

2 stops8h 56m

$287

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 7/15

4:53 pm-3:27 pm

2 stops21h 34m

Key West

Thu 7/23

8:48 pm-3:41 pm

1 stop19h 53m

$306

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

See travel insights to Key West from

How to get the cheapest flight ticket from San Antonio to Key West

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between San Antonio and Key West?

What is the cheapest month to fly to Key West?

In general, August is the cheapest month to fly from San Antonio to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $258. If you are unable to visit Key West during the month of August, then departing from San Antonio during the month April is also very affordable. Most momondo users find prices during this month for around $258.

When to book flights from San Antonio to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from San Antonio to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Antonio to Key West (SAT to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to Key West

Fastest flight time

5h 03m

Direct flights

None
The fastest flight from San Antonio to Key West takes 5h 03m
There are no direct flights from San Antonio to Key West. There are no popular flight routes from San Antonio to Key West.
Search flight deals

Frequently asked questions about flying from San Antonio to Key West

  • How far is San Antonio to Key West by plane?

    There are 1079.4 mi between San Antonio and Key West. Typically, this will take 5h 03m by plane in normal conditions.

  • When did momondo last update prices for flights from San Antonio Airport to Key West Airport?

    Prices for flights from San Antonio Airport to Key West Airport are updated daily.

  • How many operators does momondo search for flights from San Antonio Airport to Key West Airport?

  • How old do you have to be to fly from San Antonio Airport to Key West Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The travel and health documents you'll need for your trip to Key West Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from San Antonio to Key West?

Best airlines flying from San Antonio to Key West

Compare and see reviews for airlines that fly from San Antonio to Key West with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $224Free CancellationRating
7.1
11,661 reviews
Search American Airlines flights
DeltaPriceFrom $227Free CancellationRating
7.9
8,446 reviews
Search Delta flights

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to Key West?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Antonio to Key West for you.

Can I find flights from San Antonio to Key West with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Key West from San Antonio with this policy.

How can momondo help me find flights from San Antonio to Key West?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Antonio to Key West.

I’m not ready to book a flight from San Antonio to Key West right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Antonio to Key West flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Key West trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 6/11
Thu 6/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States