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Cheap flights from Key West to San Juan from $338

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to San Juan departing on 4/28. 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 Key West to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:01 pm - 7:22 pm
EYW
-
SJU
30h 21m
2 stops
Multiple Airlines Logo
4:11 pm - 10:21 am
SJU
-
EYW
18h 10m
1 stop
$338Multiple Airlines
Tue, Apr 28 - Sat, May 2
Multiple Airlines Logo
1:14 pm - 12:37 am
EYW
-
SJU
11h 23m
1 stop
Multiple Airlines Logo
5:15 pm - 4:17 pm
SJU
-
EYW
23h 02m
1 stop
$364Multiple Airlines
Tue, Jun 16 - Tue, Jun 23
Multiple Airlines Logo
1:57 pm - 10:18 am
EYW
-
SJU
20h 21m
1 stop
Multiple Airlines Logo
8:04 pm - 3:46 pm
SJU
-
EYW
19h 42m
2 stops
$366Multiple Airlines
Sun, May 17 - Sun, May 31
Multiple Airlines Logo
1:57 pm - 10:18 am
EYW
-
SJU
20h 21m
1 stop
Multiple Airlines Logo
8:32 am - 1:24 pm
SJU
-
EYW
28h 52m
2 stops
$371Multiple Airlines
Sun, May 17 - Wed, May 27
Multiple Airlines Logo
1:14 pm - 12:37 am
EYW
-
SJU
11h 23m
1 stop
Multiple Airlines Logo
5:15 pm - 10:24 am
SJU
-
EYW
41h 09m
2 stops
$377Multiple Airlines
Tue, Jun 16 - Tue, Jun 23
Multiple Airlines Logo
1:01 pm - 9:05 am
EYW
-
SJU
20h 04m
1 stop
Multiple Airlines Logo
4:11 pm - 10:21 am
SJU
-
EYW
18h 10m
1 stop
$411Multiple Airlines
Tue, Apr 28 - Sat, May 2
Multiple Airlines Logo
1:14 pm - 4:01 am
EYW
-
SJU
14h 47m
2 stops
Multiple Airlines Logo
5:15 pm - 11:06 am
SJU
-
EYW
17h 51m
1 stop
$413Multiple Airlines
Tue, Jun 2 - Tue, Jun 23
Multiple Airlines Logo
1:57 pm - 10:18 am
EYW
-
SJU
20h 21m
1 stop
Multiple Airlines Logo
2:59 am - 11:25 am
SJU
-
EYW
8h 26m
1 stop
$422Multiple Airlines
Sun, May 17 - Sat, May 30
Delta Logo
11:58 am - 10:27 pm
EYW
-
SJU
10h 29m
1 stop
Delta Logo
6:00 am - 5:29 pm
SJU
-
EYW
11h 29m
1 stop
$436Delta
Mon, Jun 15 - Fri, Jun 19
Multiple Airlines Logo
1:57 pm - 10:18 am
EYW
-
SJU
20h 21m
1 stop
Multiple Airlines Logo
12:00 pm - 3:20 pm
SJU
-
EYW
27h 20m
1 stop
$438Multiple Airlines
Sun, May 17 - Wed, May 27

American Airlines flights from Key West to San Juan Luis Munoz Marin Intl Airport

Our best American Airlines deals on Key West to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Sep 2
EYW1:49 pmKey West
4h 35m
1 stop
SJU6:24 pmSan Juan Luis Munoz Marin Intl
Sep 6
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 39m
1 stop
EYW7:39 pmKey West
$441
American Airlines
Jun 15
EYW7:29 pmKey West
14h 10m
2 stops
SJU9:39 amSan Juan Luis Munoz Marin Intl
Jun 19
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 10m
1 stop
EYW7:10 pmKey West
$491
American Airlines
Sep 2
EYW4:50 pmKey West
7h 09m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Sep 6
SJU6:00 amSan Juan Luis Munoz Marin Intl
12h 44m
2 stops
EYW6:44 pmKey West
$496

United Airlines flights from Key West to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on Key West to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
Apr 19
EYW6:22 pmKey West
18h 12m
1 stop
SJU12:34 pmSan Juan Luis Munoz Marin Intl
Apr 23
SJU7:20 amSan Juan Luis Munoz Marin Intl
9h 22m
1 stop
EYW4:42 pmKey West
$926
United Airlines
Apr 19
EYW2:35 pmKey West
9h 15m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Apr 23
SJU7:20 amSan Juan Luis Munoz Marin Intl
9h 22m
1 stop
EYW4:42 pmKey West
$958
United Airlines
Apr 19
EYW6:22 pmKey West
19h 23m
2 stops
SJU1:45 pmSan Juan Luis Munoz Marin Intl
Apr 23
SJU7:20 amSan Juan Luis Munoz Marin Intl
9h 22m
1 stop
EYW4:42 pmKey West
$980

momondo Fare Finder

 
Customize your flight search to find flights from Key West to San Juan Luis Munoz Marin Intl Airport 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 April 18, 2026.
Use the filters below to find and compare flights from Key West to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Tue 4/28

1:01 pm-7:22 pm

2 stops30h 21m

San Juan Luis Munoz Marin Intl

Sat 5/2

4:11 pm-10:21 am

1 stop18h 10m

$338

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Tue 6/16

1:14 pm-12:37 am

1 stop11h 23m

San Juan Luis Munoz Marin Intl

Tue 6/23

5:15 pm-4:17 pm

1 stop23h 02m

$364

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Sun 5/17

1:57 pm-10:18 am

1 stop20h 21m

San Juan Luis Munoz Marin Intl

Sun 5/31

8:04 pm-3:46 pm

2 stops19h 42m

$366

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Sun 5/17

1:57 pm-10:18 am

1 stop20h 21m

San Juan Luis Munoz Marin Intl

Wed 5/27

8:32 am-1:24 pm

2 stops28h 52m

$371

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Tue 6/16

1:14 pm-12:37 am

1 stop11h 23m

San Juan Luis Munoz Marin Intl

Tue 6/23

5:15 pm-10:24 am

2 stops41h 09m

$377

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Tue 4/28

1:01 pm-9:05 am

1 stop20h 04m

San Juan Luis Munoz Marin Intl

Sat 5/2

4:11 pm-10:21 am

1 stop18h 10m

$411

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Tue 6/2

1:14 pm-4:01 am

2 stops14h 47m

San Juan Luis Munoz Marin Intl

Tue 6/23

5:15 pm-11:06 am

1 stop17h 51m

$413

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Sun 5/17

1:57 pm-10:18 am

1 stop20h 21m

San Juan Luis Munoz Marin Intl

Sat 5/30

2:59 am-11:25 am

1 stop8h 26m

$422
Quickest round-trip

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Mon 6/15

11:58 am-10:27 pm

1 stop10h 29m

San Juan Luis Munoz Marin Intl

Fri 6/19

6:00 am-5:29 pm

1 stop11h 29m

$436

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Sun 5/17

1:57 pm-10:18 am

1 stop20h 21m

San Juan Luis Munoz Marin Intl

Wed 5/27

12:00 pm-3:20 pm

1 stop27h 20m

$438

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Key West to San Juan Luis Munoz Marin Intl Airport

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

Cheap Key West to San Juan Luis Munoz Marin Intl Airport (EYW to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Key West to San Juan Luis Munoz Marin Intl Airport

Fastest flight time

10h 38m

Direct flights

None
The fastest flight from Key West to San Juan Luis Munoz Marin Intl Airport takes 10h 38m
There are no direct flights from Key West to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Key West to San Juan Luis Munoz Marin Intl Airport.
Search flight deals

Frequently asked questions about flying from Key West to San Juan Luis Munoz Marin Intl Airport

  • How far is Key West to San Juan Luis Munoz Marin Intl by plane?

    The straight-line distance from Key West to San Juan Luis Munoz Marin Intl is 1098.2 mi. Flights usually cover this in 10h 38m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Key West Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Key West Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.

  • How many operators does momondo search for flights from Key West Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Key West Airport to San Juan Luis Munoz Marin Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Key West Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The travel and health documents required for your trip to San Juan Luis Munoz Marin Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan Luis Munoz Marin Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Key West to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Key West to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Key West to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $390Free CancellationRating
7.1
11,604 reviews
Search American Airlines flights

Frequently asked questions about flying from Key West to San Juan Luis Munoz Marin Intl Airport

  • How do I get Price Alerts for flights from Key West to San Juan Luis Munoz Marin Intl Airport?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Key West from San Juan Luis Munoz Marin Intl Airport. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Key West to San Juan Luis Munoz Marin Intl Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Caguas
Rio Grande
Humacao
Bayamón

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Juan from Key West.

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

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

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

momondo helps you find the best flight between Key West and San Juan by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to San Juan from Key West are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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