$192 Cheap Flights from Key West (EYW) to San Juan (SJU)

View $192 flight on Tue, Jan 13, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $192 for one-way flights and $382 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Oct 14 - Wed, Oct 15
EYW
Key West
SJU
San Juan
$382 Roundtrip, found 6 days ago
$382
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Oct 14 from Key West to San Juan, returning Wed, Oct 15, priced at $382 found 6 days ago
American Airlines
Fri, Sep 19 - Mon, Sep 22
EYW
Key West
SJU
San Juan
$405 Roundtrip, found 10 hours ago
$405
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, Sep 19 from Key West to San Juan, returning Mon, Sep 22, priced at $405 found 10 hours ago
American Airlines
Sat, Oct 11 - Wed, Oct 15
EYW
Key West
SJU
San Juan
$415 Roundtrip, found 6 days ago
$415
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Oct 11 from Key West to San Juan, returning Wed, Oct 15, priced at $415 found 6 days ago
American Airlines
Mon, Sep 1 - Fri, Sep 5
EYW
Key West
SJU
San Juan
$425 Roundtrip, found 13 hours ago
$425
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Mon, Sep 1 from Key West to San Juan, returning Fri, Sep 5, priced at $425 found 13 hours ago
American Airlines
Fri, Sep 19 - Mon, Sep 22
EYW
Key West
SJU
San Juan
$445 Roundtrip, found 10 hours ago
$445
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, Sep 19 from Key West to San Juan, returning Mon, Sep 22, priced at $445 found 10 hours ago
American Airlines
Fri, Sep 19 - Mon, Sep 22
EYW
Key West
SJU
San Juan
$454 Roundtrip, found 10 hours ago
$454
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, Sep 19 from Key West to San Juan, returning Mon, Sep 22, priced at $454 found 10 hours ago
American Airlines
Sun, Oct 12 - Tue, Oct 14
EYW
Key West
SJU
San Juan
$455 Roundtrip, found 2 days ago
$455
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Oct 12 from Key West to San Juan, returning Tue, Oct 14, priced at $455 found 2 days ago
American Airlines
Fri, Jan 30 - Sat, Jan 31
EYW
Key West
SJU
San Juan
$465 Roundtrip, found 5 hours ago
$465
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Fri, Jan 30 from Key West to San Juan, returning Sat, Jan 31, priced at $465 found 5 hours ago
JetBlue Airways
Sat, Oct 11 - Sun, Oct 19
EYW
Key West
SJU
San Juan
$515 Roundtrip, found 4 days ago
$515
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Sat, Oct 11 from Key West to San Juan, returning Sun, Oct 19, priced at $515 found 4 days ago
United
Fri, Sep 19 - Mon, Sep 22
EYW
Key West
SJU
San Juan
$550 Roundtrip, found 10 hours ago
$550
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Sep 19 from Key West to San Juan, returning Mon, Sep 22, priced at $550 found 10 hours ago

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

January is typically the cheapest month to fly

From $281 - $719 per traveler.

Graph displaying average flight prices per month

Alternative airports near San Juan

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

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $595
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $595
Flights from Key West (EYW) to San Juan (SJU)
Origin airport
Key West Intl.
Destination airport
Luis Munoz Marin Intl.
Airlines serving
American Airlines, Delta, JetBlue Airways, United
Roundtrip price
$382
Distance
1095 mi

Key West to San Juan Flights

The cheapest times to fly from Key West to San Juan

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 Key West to San Juan are during the month of October. You can find some of the cheapest flights from Key West to San Juan with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Key West to San Juan: 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 Key West to San Juan

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 Key West to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from $192 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 Key West to San Juan 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 Key West to San Juan 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 Key West Intl. Airport (EYW) to Luis Munoz Marin Intl. Airport (SJU) cost?
Discover the latest flight deals from EYW to SJU 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 EYW to SJU?
The cheapest flights from EYW to SJU 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 EYW to SJU?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from EYW to SJU. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Key West Intl. Airport (EYW) to Luis Munoz Marin Intl. Airport (SJU)?
Direct flights from Key West Intl. Airport (EYW) to Luis Munoz Marin Intl. Airport (SJU) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from EYW to SJU?
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 Key West Intl. Airport (EYW) to Luis Munoz Marin Intl. Airport (SJU)?
To touch down at Luis Munoz Marin Intl. Airport (SJU) on time, select a flight that leaves Key West Intl. Airport (EYW) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Key West Intl. Airport (EYW) to Luis Munoz Marin Intl. Airport (SJU) last-minute?
Last-minute fares from EYW to SJU are usually more expensive. To secure the cheapest rates, start searching for flights ahead of time. That being said, if you're flexible with your travel dates, you may land a cheap ticket right before your trip.
Can I cancel or change the date of my flight from Key West Intl. Airport (EYW) to Luis Munoz Marin Intl. Airport (SJU)?
In most cases, you can modify or cancel your EYW to SJU flight. However, there may be additional charges, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you want further details, visit our Customer Service portal.

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*Available to One Key members.