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Cheap flights from San Antonio to Key West from $196

This is the cheapest round-trip 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 10/1. 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

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Find the cheapest flights from San Antonio to Key West

Cheap round-trip flights

American Airlines Logo
7:00 am - 6:59 pmSAT-EYW
10h 59m2 stops
American Airlines Logo
1:38 pm - 10:53 pmEYW-SAT
10h 15m1 stop
$196American Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
Delta Logo
12:15 pm - 8:07 pmSAT-EYW
6h 52m1 stop
Delta Logo
7:40 am - 1:28 pmEYW-SAT
6h 48m1 stop
$197Delta
Find Deal
Wed, Oct 1 - Tue, Oct 7
American Airlines Logo
7:00 am - 6:59 pmSAT-EYW
10h 59m2 stops
American Airlines Logo
5:47 pm - 9:56 pmEYW-SAT
5h 09m1 stop
$200American Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
American Airlines Logo
7:00 am - 6:59 pmSAT-EYW
10h 59m2 stops
American Airlines Logo
1:25 pm - 10:39 pmEYW-SAT
10h 14m2 stops
$201American Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
American Airlines Logo
7:00 am - 6:59 pmSAT-EYW
10h 59m2 stops
American Airlines Logo
1:25 pm - 10:39 pmEYW-SAT
10h 14m2 stops
$206American Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
American Airlines Logo
7:22 am - 6:59 pmSAT-EYW
10h 37m2 stops
American Airlines Logo
5:47 pm - 9:56 pmEYW-SAT
5h 09m1 stop
$242American Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
American Airlines Logo
9:21 am - 6:59 pmSAT-EYW
8h 38m2 stops
American Airlines Logo
1:38 pm - 10:53 pmEYW-SAT
10h 15m1 stop
$246American Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
American Airlines Logo
7:22 am - 6:59 pmSAT-EYW
10h 37m2 stops
American Airlines Logo
1:25 pm - 10:39 pmEYW-SAT
10h 14m2 stops
$247American Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
Delta Logo
5:25 am - 1:05 pmSAT-EYW
6h 40m1 stop
Delta Logo
7:00 am - 11:00 amEYW-SAT
5h 00m1 stop
$259Delta
Find Deal
Tue, Aug 19 - Fri, Aug 22
Logo
6:00 am - 7:55 pmSAT-EYW
12h 55m2 stops
Logo
8:55 am - 3:55 pmEYW-SAT
8h 00m1 stop
$419
Find Deal
Fri, Oct 31 - Sun, Nov 2

Delta flights from San Antonio to Key West

Our best Delta deals on San Antonio to Key West flight tickets
Delta
Oct 1
SAT12:15 pmSan Antonio
6h 52m
1 stop
EYW8:07 pmKey West
Oct 7
EYW7:40 amKey West
6h 48m
1 stop
SAT1:28 pmSan Antonio
$197
Find similar
Delta
Aug 19
SAT5:25 amSan Antonio
6h 40m
1 stop
EYW1:05 pmKey West
Aug 22
EYW7:00 amKey West
5h 00m
1 stop
SAT11:00 amSan Antonio
$259
Find similar
Delta
Aug 19
SAT6:40 amSan Antonio
5h 25m
1 stop
EYW1:05 pmKey West
Aug 22
EYW7:00 amKey West
5h 00m
1 stop
SAT11:00 amSan Antonio
$260
Find similar

American Airlines flights from San Antonio to Key West

Our best American Airlines deals on San Antonio to Key West flight tickets
American Airlines
Oct 1
SAT7:00 amSan Antonio
10h 59m
2 stops
EYW6:59 pmKey West
Oct 7
EYW1:38 pmKey West
10h 15m
1 stop
SAT10:53 pmSan Antonio
$196
Find similar
American Airlines
Oct 1
SAT7:00 amSan Antonio
10h 59m
2 stops
EYW6:59 pmKey West
Oct 7
EYW5:47 pmKey West
5h 09m
1 stop
SAT9:56 pmSan Antonio
$200
Find similar
American Airlines
Oct 1
SAT7:00 amSan Antonio
10h 59m
2 stops
EYW6:59 pmKey West
Oct 7
EYW1:25 pmKey West
10h 14m
2 stops
SAT10:39 pmSan Antonio
$201
Find similar

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 July 31, 2025.
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

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 10/1

7:00 am-6:59 pm

2 stops10h 59m

Key West

Tue 10/7

1:38 pm-10:53 pm

1 stop10h 15m

$196

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 10/1

12:15 pm-8:07 pm

1 stop6h 52m

Key West

Tue 10/7

7:40 am-1:28 pm

1 stop6h 48m

$197

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 10/1

7:00 am-6:59 pm

2 stops10h 59m

Key West

Tue 10/7

5:47 pm-9:56 pm

1 stop5h 09m

$200

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 10/1

7:00 am-6:59 pm

2 stops10h 59m

Key West

Tue 10/7

1:25 pm-10:39 pm

2 stops10h 14m

$201

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 10/1

7:00 am-6:59 pm

2 stops10h 59m

Key West

Tue 10/7

1:25 pm-10:39 pm

2 stops10h 14m

$206

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 10/1

7:22 am-6:59 pm

2 stops10h 37m

Key West

Tue 10/7

5:47 pm-9:56 pm

1 stop5h 09m

$242

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 10/1

9:21 am-6:59 pm

2 stops8h 38m

Key West

Tue 10/7

1:38 pm-10:53 pm

1 stop10h 15m

$246

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Wed 10/1

7:22 am-6:59 pm

2 stops10h 37m

Key West

Tue 10/7

1:25 pm-10:39 pm

2 stops10h 14m

$247

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Tue 8/19

5:25 am-1:05 pm

1 stop6h 40m

Key West

Fri 8/22

7:00 am-11:00 am

1 stop5h 00m

$259

San AntonioKey West

SAT - EYW

SATEYW

San Antonio

Fri 10/31

6:00 am-7:55 pm

2 stops12h 55m

Key West

Sun 11/2

8:55 am-3:55 pm

1 stop8h 00m

$419

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 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 $303. 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 $304.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from San Antonio is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $335. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from San Antonio to Key West for around $438.

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

Best Price Found

$196

Fastest flight time

4h 33m

Direct flights

None

Airports in Key West

1 airport
The best flight deal from San Antonio to Key West found on momondo in the last 72 hours is $196
The fastest flight from San Antonio to Key West takes 4h 33m
There are no direct flights from San Antonio to Key West. Popular non-direct route for this connection is San Antonio Airport - Key West Airport.
There is 1 airport near Key West: Key West (EYW)
Search flight deals

  • 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 4h 33m 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
DeltaPriceFrom $208Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $224Free CancellationRating
7.2
10,000 reviews
Search American Airlines 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

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