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Cheap flights from Key West to San Juan from $333

This is the cheapest one-way 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 8/5. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
11:46 am - 12:41 am
EYW
-
SJU
12h 55m
1 stop
Multiple Airlines Logo
5:22 pm - 12:31 pm
SJU
-
EYW
19h 09m
1 stop
$427Multiple Airlines
Wed, Jul 8 - Sun, Jul 12
American Airlines Logo
1:50 pm - 11:59 pm
EYW
-
SJU
10h 09m
1 stop
American Airlines Logo
7:24 pm - 10:56 am
SJU
-
EYW
15h 32m
1 stop
$451American Airlines
Wed, Sep 2 - Sun, Sep 6
Multiple Airlines Logo
1:11 pm - 12:41 am
EYW
-
SJU
11h 30m
1 stop
Multiple Airlines Logo
3:10 am - 11:27 am
SJU
-
EYW
8h 17m
1 stop
$503Multiple Airlines
Mon, Jul 6 - Thu, Jul 9
Multiple Airlines Logo
1:11 pm - 12:41 am
EYW
-
SJU
11h 30m
1 stop
Multiple Airlines Logo
10:48 pm - 11:27 am
SJU
-
EYW
36h 39m
2 stops
$542Multiple Airlines
Mon, Jul 6 - Fri, Jul 10
United Airlines Logo
2:15 pm - 11:50 pm
EYW
-
SJU
9h 35m
1 stop
United Airlines Logo
1:00 am - 1:29 pm
SJU
-
EYW
12h 29m
1 stop
$853United Airlines
Tue, Sep 1 - Fri, Sep 4
United Airlines Logo
2:15 pm - 11:50 pm
EYW
-
SJU
9h 35m
1 stop
United Airlines Logo
3:56 pm - 1:29 pm
SJU
-
EYW
21h 33m
2 stops
$863United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
2:15 pm - 11:50 pm
EYW
-
SJU
9h 35m
1 stop
United Airlines Logo
3:56 pm - 1:29 pm
SJU
-
EYW
21h 33m
2 stops
$884United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
2:15 pm - 11:50 pm
EYW
-
SJU
9h 35m
1 stop
United Airlines Logo
1:00 am - 1:29 pm
SJU
-
EYW
12h 29m
1 stop
$890United Airlines
Tue, Sep 1 - Fri, Sep 4
American Airlines Logo
7:33 pm - 11:04 am
EYW
-
SJU
15h 31m
2 stops
American Airlines Logo
6:00 am - 6:48 pm
SJU
-
EYW
12h 48m
2 stops
$891American Airlines
Mon, Jul 6 - Fri, Jul 10
American Airlines Logo
7:55 pm - 9:45 am
EYW
-
SJU
13h 50m
1 stop
American Airlines Logo
7:25 am - 6:48 pm
SJU
-
EYW
11h 23m
1 stop
$901American Airlines
Sat, Jul 11 - Sat, Jul 18

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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
EYW1:50 pmKey West
10h 09m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Sep 6
SJU7:24 pmSan Juan Luis Munoz Marin Intl
15h 32m
1 stop
EYW10:56 amKey West
$451
American Airlines
Jun 26
EYW7:29 pmKey West
15h 33m
2 stops
SJU11:02 amSan Juan Luis Munoz Marin Intl
Jun 28
SJU6:01 amSan Juan Luis Munoz Marin Intl
12h 48m
2 stops
EYW6:49 pmKey West
$851
American Airlines
Jul 6
EYW7:33 pmKey West
15h 31m
2 stops
SJU11:04 amSan Juan Luis Munoz Marin Intl
Jul 10
SJU6:00 amSan Juan Luis Munoz Marin Intl
12h 48m
2 stops
EYW6:48 pmKey West
$891

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
Sep 1
EYW2:15 pmKey West
9h 35m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Sep 4
SJU1:00 amSan Juan Luis Munoz Marin Intl
12h 29m
1 stop
EYW1:29 pmKey West
$853
United Airlines
Sep 1
EYW2:15 pmKey West
9h 35m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Sep 5
SJU3:56 pmSan Juan Luis Munoz Marin Intl
21h 33m
2 stops
EYW1:29 pmKey West
$863
United Airlines
Sep 1
EYW2:15 pmKey West
9h 35m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Sep 5
SJU3:56 pmSan Juan Luis Munoz Marin Intl
21h 33m
2 stops
EYW1:29 pmKey West
$884

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 June 23, 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

Wed 7/8

11:46 am-12:41 am

1 stop12h 55m

San Juan Luis Munoz Marin Intl

Sun 7/12

5:22 pm-12:31 pm

1 stop19h 09m

$427

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Wed 9/2

1:50 pm-11:59 pm

1 stop10h 09m

San Juan Luis Munoz Marin Intl

Sun 9/6

7:24 pm-10:56 am

1 stop15h 32m

$451
Quickest round-trip

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Mon 7/6

1:11 pm-12:41 am

1 stop11h 30m

San Juan Luis Munoz Marin Intl

Thu 7/9

3:10 am-11:27 am

1 stop8h 17m

$503

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Mon 7/6

1:11 pm-12:41 am

1 stop11h 30m

San Juan Luis Munoz Marin Intl

Fri 7/10

10:48 pm-11:27 am

2 stops36h 39m

$542

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Tue 9/1

2:15 pm-11:50 pm

1 stop9h 35m

San Juan Luis Munoz Marin Intl

Fri 9/4

1:00 am-1:29 pm

1 stop12h 29m

$853

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Tue 9/1

2:15 pm-11:50 pm

1 stop9h 35m

San Juan Luis Munoz Marin Intl

Sat 9/5

3:56 pm-1:29 pm

2 stops21h 33m

$863

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Tue 9/1

2:15 pm-11:50 pm

1 stop9h 35m

San Juan Luis Munoz Marin Intl

Sat 9/5

3:56 pm-1:29 pm

2 stops21h 33m

$884

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Tue 9/1

2:15 pm-11:50 pm

1 stop9h 35m

San Juan Luis Munoz Marin Intl

Fri 9/4

1:00 am-1:29 pm

1 stop12h 29m

$890

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Mon 7/6

7:33 pm-11:04 am

2 stops15h 31m

San Juan Luis Munoz Marin Intl

Fri 7/10

6:00 am-6:48 pm

2 stops12h 48m

$891

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Sat 7/11

7:55 pm-9:45 am

1 stop13h 50m

San Juan Luis Munoz Marin Intl

Sat 7/18

7:25 am-6:48 pm

1 stop11h 23m

$901

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Key West to San Juan Luis Munoz Marin Intl Airport

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 airline that flies from Key West to San Juan Luis Munoz Marin Intl?

Delta is the most popular carrier operating from Key West to San Juan Luis Munoz Marin Intl

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

8h 30m

Direct flights

None
The fastest flight from Key West to San Juan Luis Munoz Marin Intl Airport takes 8h 30m
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 8h 30m, 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
11,746 reviews
Search American Airlines flights

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
Humacao
Rio Grande
Caguas
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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