$160 Cheap Flights from San Juan (SJU) to Key West (EYW)

View $160 flight on Fri, Oct 3, 2025Opens in a new window

Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to Key West Intl. Airport (EYW)

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Cheap Flights from San Juan to Key West (SJU-EYW)

Prices were available within the past 7 days and start at $160 for one-way flights and $319 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Aug 14 - Tue, Aug 19
SJU
San Juan
EYW
Key West
$319 Roundtrip, found 10 hours ago
$319
Roundtrip
found 10 hours ago
Select Delta flight, departing Thu, Aug 14 from San Juan to Key West, returning Tue, Aug 19, priced at $319 found 10 hours ago
Delta
Thu, Aug 14 - Fri, Aug 22
SJU
San Juan
EYW
Key West
$359 Roundtrip, found 10 hours ago
$359
Roundtrip
found 10 hours ago
Select Delta flight, departing Thu, Aug 14 from San Juan to Key West, returning Fri, Aug 22, priced at $359 found 10 hours ago
Delta
Thu, Aug 14 - Tue, Aug 19
SJU
San Juan
EYW
Key West
$399 Roundtrip, found 10 hours ago
$399
Roundtrip
found 10 hours ago
Select Delta flight, departing Thu, Aug 14 from San Juan to Key West, returning Tue, Aug 19, priced at $399 found 10 hours ago
American Airlines
Sun, May 24 - Thu, May 28
SJU
San Juan
EYW
Key West
$401 Roundtrip, found 11 hours ago
$401
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Sun, May 24 from San Juan to Key West, returning Thu, May 28, priced at $401 found 11 hours ago
American Airlines
Thu, Aug 14 - Tue, Aug 19
SJU
San Juan
EYW
Key West
$405 Roundtrip, found 10 hours ago
$405
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Thu, Aug 14 from San Juan to Key West, returning Tue, Aug 19, priced at $405 found 10 hours ago
American Airlines
Sat, Aug 30 - Sat, Sep 6
SJU
San Juan
EYW
Key West
$415 Roundtrip, found 9 hours ago
$415
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Sat, Aug 30 from San Juan to Key West, returning Sat, Sep 6, priced at $415 found 9 hours ago
Delta
Thu, Aug 14 - Tue, Aug 19
SJU
San Juan
EYW
Key West
$419 Roundtrip, found 10 hours ago
$419
Roundtrip
found 10 hours ago
Select Delta flight, departing Thu, Aug 14 from San Juan to Key West, returning Tue, Aug 19, priced at $419 found 10 hours ago
American Airlines
Thu, Aug 14 - Tue, Aug 19
SJU
San Juan
EYW
Key West
$425 Roundtrip, found 10 hours ago
$425
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Thu, Aug 14 from San Juan to Key West, returning Tue, Aug 19, priced at $425 found 10 hours ago
American Airlines
Fri, Oct 17 - Sat, Oct 25
SJU
San Juan
EYW
Key West
$426 Roundtrip, just found
$426
Roundtrip
just found
Select American Airlines flight, departing Fri, Oct 17 from San Juan to Key West, returning Sat, Oct 25, priced at $426 just found
United
Sun, Dec 7 - Tue, Dec 9
SJU
San Juan
EYW
Key West
$575 Roundtrip, found 2 days ago
$575
Roundtrip
found 2 days ago
Select United flight, departing Sun, Dec 7 from San Juan to Key West, returning Tue, Dec 9, priced at $575 found 2 days ago

Find the cheapest month to fly from San Juan (SJU) to Key West (EYW)

September is typically the cheapest month to fly

From $264 - $533 per traveler.

Graph displaying average flight prices per month

Alternative airports near Key West

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Key West Intl. EYW. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $615
EYW
Key West Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $615
Flights from San Juan (SJU) to Key West (EYW)
Origin airport
Luis Munoz Marin Intl.
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$319
Distance
1095 mi

San Juan to Key West Flights

The cheapest times to fly from San Juan to Key West

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Juan to Key West are during the month of August. You can find some of the cheapest flights from San Juan to Key West with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Juan to Key West

Sunday is one of the best days to book for cheap flights from San Juan to Key West: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Juan to Key West

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Juan to Key West in 2025. You can also book with separate airlines for your outbound and return journeys, from $160 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Juan to Key West flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Juan to Key West airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to Key West Intl. Airport (EYW) cost?
Discover the latest flight deals from SJU to EYW by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SJU to EYW?
The cheapest flights from SJU to EYW are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SJU to EYW?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SJU to EYW. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to Key West Intl. Airport (EYW)?
There are no daily direct flights departing from Luis Munoz Marin Intl. Airport (SJU) to Key West Intl. Airport (EYW). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from SJU to EYW?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to Key West Intl. Airport (EYW)?
To reach Key West Intl. Airport (EYW) on time, select a flight that takes off from Luis Munoz Marin Intl. Airport (SJU) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to Key West Intl. Airport (EYW) last-minute?
Last-minute fares from SJU to EYW are generally more expensive. For the cheapest rates, start looking for flights early. That said, if your travel plans are flexible, you may score a cheap fare right before you leave.
Is it cheaper to book a SJU to EYW flight and hotel package?
Opting for a SJU to EYW flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our wide range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Key West Intl. Airport (EYW)?
In most cases, you can modify or cancel your SJU to EYW flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you want more details, visit our Customer Service portal.

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*Available to One Key members.