$88 Cheap Flights from Jacksonville (JAX) to San Juan (SJU)

View $88 flight on Sun, Oct 26, 2025Opens in a new window

Popular airlines from Jacksonville International Airport (JAX) to Luis Munoz Marin Intl. Airport (SJU)

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Cheap Flights from Jacksonville to San Juan (JAX-SJU)

Prices were available within the past 7 days and start at $88 for one-way flights and $175 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Sep 16 - Tue, Oct 7
JAX
Jacksonville
SJU
San Juan
$175 Roundtrip, found 2 hours ago
$175
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Tue, Sep 16 from Jacksonville to San Juan, returning Tue, Oct 7, priced at $175 found 2 hours ago
Delta
Wed, Nov 5 - Wed, Nov 12
JAX
Jacksonville
SJU
San Juan
$175 Roundtrip, found 15 hours ago
$175
Roundtrip
found 15 hours ago
Select Delta flight, departing Wed, Nov 5 from Jacksonville to San Juan, returning Wed, Nov 12, priced at $175 found 15 hours ago
Delta
Tue, Oct 21 - Fri, Oct 31
JAX
Jacksonville
SJU
San Juan
$185 Roundtrip, found 3 hours ago
$185
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Oct 21 from Jacksonville to San Juan, returning Fri, Oct 31, priced at $185 found 3 hours ago
American Airlines
Sat, Oct 4 - Tue, Oct 7
JAX
Jacksonville
SJU
San Juan
$200 Roundtrip, just found
$200
Roundtrip
just found
Select American Airlines flight, departing Sat, Oct 4 from Jacksonville to San Juan, returning Tue, Oct 7, priced at $200 just found
Delta
Sun, Sep 7 - Fri, Sep 12
JAX
Jacksonville
SJU
San Juan
$205 Roundtrip, found 13 hours ago
$205
Roundtrip
found 13 hours ago
Select Delta flight, departing Sun, Sep 7 from Jacksonville to San Juan, returning Fri, Sep 12, priced at $205 found 13 hours ago
Delta
Sat, Oct 4 - Tue, Oct 7
JAX
Jacksonville
SJU
San Juan
$210 Roundtrip, just found
$210
Roundtrip
just found
Select Delta flight, departing Sat, Oct 4 from Jacksonville to San Juan, returning Tue, Oct 7, priced at $210 just found
Delta
Mon, Oct 27 - Tue, Oct 28
JAX
Jacksonville
SJU
San Juan
$212 Roundtrip, found 22 hours ago
$212
Roundtrip
found 22 hours ago
Select Delta flight, departing Mon, Oct 27 from Jacksonville to San Juan, returning Tue, Oct 28, priced at $212 found 22 hours ago
Southwest Airlines
Mon, Sep 29 - Thu, Oct 2
JAX
Jacksonville
SJU
San Juan
$217 Roundtrip, found 4 hours ago
$217
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Mon, Sep 29 from Jacksonville to San Juan, returning Thu, Oct 2, priced at $217 found 4 hours ago
Frontier Airlines
Thu, Aug 7 - Thu, Sep 4
JAX
Jacksonville
SJU
San Juan
$238 Roundtrip, found 2 days ago
$238
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Aug 7 from Jacksonville to San Juan, returning Thu, Sep 4, priced at $238 found 2 days ago
JetBlue Airways
Sat, Oct 4 - Tue, Oct 7
JAX
Jacksonville
SJU
San Juan
$306 Roundtrip, just found
$306
Roundtrip
just found
Select JetBlue Airways flight, departing Sat, Oct 4 from Jacksonville to San Juan, returning Tue, Oct 7, priced at $306 just found

Find the cheapest month to fly from Jacksonville (JAX) to San Juan (SJU)

March is typically the cheapest month to fly

From $98 - $535 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 $458
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $458
Flights from Jacksonville (JAX) to San Juan (SJU)
Origin airport
Jacksonville Intl.
Destination airport
Luis Munoz Marin Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$175
Distance
1287 mi
Average flight time
2 hours 12 mins

Jacksonville to San Juan Flights

The cheapest times to fly from Jacksonville 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 Jacksonville to San Juan are during the month of September. You can find some of the cheapest flights from Jacksonville to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Jacksonville to San Juan

Sunday is one of the best days to book for cheap flights from Jacksonville 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 Jacksonville 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 Jacksonville to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from $88 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 Jacksonville 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 Jacksonville 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 Jacksonville Intl. Airport (JAX) to Luis Munoz Marin Intl. Airport (SJU) cost?
Pick up cheap return flights starting at $162 from Jacksonville Intl. Airport (JAX) to Luis Munoz Marin Intl. Airport (SJU). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving JAX on August 9 2025 and touching down at SJU. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from JAX to SJU?
The cheapest flights from JAX 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 JAX to SJU?
At the moment, the cheapest carrier offering one-way flights from JAX to SJU is Frontier Airlines. You can take off on this route from $129. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from JAX on August 9 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Jacksonville Intl. Airport (JAX) to Luis Munoz Marin Intl. Airport (SJU)?
You'll need to hop on a flight with a layover when traveling from Jacksonville Intl. Airport (JAX) to Luis Munoz Marin Intl. Airport (SJU). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from JAX to SJU?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Jacksonville Intl. Airport (JAX) to Luis Munoz Marin Intl. Airport (SJU)?
Opt for a flight from Jacksonville Intl. Airport (JAX) to Luis Munoz Marin Intl. Airport (SJU) that takes off before 3 PM to reduce the likelihood of delays. Departures after this hour are on average 22% more likely to be canceled.**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 Jacksonville Intl. Airport (JAX) to Luis Munoz Marin Intl. Airport (SJU) last-minute?
Waiting until just before your trip to book your flight from JAX to SJU often results in higher prices. While you may come across some last-minute deals, they're not always guaranteed. Be flexible with your itinerary to maximize your chances of snagging a bargain.
Can I cancel or change the date of my flight from Jacksonville Intl. Airport (JAX) to Luis Munoz Marin Intl. Airport (SJU)?
In most instances, you can modify or cancel your JAX to SJU flight. However, additional fees may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like further details, go to our Customer Service portal.

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*Available to One Key members.