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Cheap flights from Islip (ISP) to San Juan (SJU)

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How to find the cheapest flight from
Islip (ISP) to San Juan (SJU)

What is the cheapest day to fly round-trip from Islip to San Juan?

Travelers have found that booking a Friday departure is the best way to save up to 240% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Islip to San Juan?

Travelers have found it’s best to book a flight 19 days in advance to save up to 7% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 19 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Islip to San Juan 1-2 weeks in advance for as low as $262, or $281 for flights within the next 24 hours.

What is the cheapest month to fly from Islip to San Juan?

August is one of the best times of the year to fly to San Juan from Islip. Prices for August average $313 per person but you can even find prices for as low as $121. The most expensive prices can be found in the month of December. Opting for a August flight can save you 71% on your journey compared to booking in August

When is the cheapest time to fly from Islip to San Juan (ISP - PR1)?

Unlike in the morning, when flights are generally more expensive, you can save up to 39% on flights from Islip to San Juan by exploring options for tickets at noon.

Cheap flights from Islip to San Juan in January, February 2021

The best prices found for ISP to SJU flights for January, February
30 Jan - 5 Feb
$116pp
ISP
Islip Long Island
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
 
1 STOP
ISP
Islip Long Island
30 Jan - 6 Feb
$140pp
ISP
Islip Long Island
Multiple Airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
 
1 STOP
ISP
Islip Long Island
30 Jan - 6 Feb
$162pp
ISP
Islip Long Island
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
   
2 STOPS
ISP
Islip Long Island

Islip to San Juan 2021 flight deals

Cheap flights to San Juan from Islip found for this year
30 Jan - 5 Feb
$116pp
ISP
Islip Long Island
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
 
1 STOP
ISP
Islip Long Island
30 Jan - 6 Feb
$140pp
ISP
Islip Long Island
Multiple Airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
 
1 STOP
ISP
Islip Long Island
30 Jan - 6 Feb
$162pp
ISP
Islip Long Island
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
   
2 STOPS
ISP
Islip Long Island

Last minute flights from Islip to San Juan

Late deals on round-trip flights to San Juan from Islip, departing today and this week
24 Jan - 6 Feb
$364pp
ISP
Islip Long Island
Frontier
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
 
1 STOP
ISP
Islip Long Island
24 Jan - 7 Feb
$379pp
ISP
Islip Long Island
American Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
American Airlines
   
2 STOPS
ISP
Islip Long Island
24 Jan - 7 Feb
$382pp
ISP
Islip Long Island
American Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
American Airlines
 
1 STOP
ISP
Islip Long Island

One-way flights to San Juan from Islip

The cheapest one-way flights from Islip to San Juan
3:00 am - 12:27 pm
Frontier
1 Stop
8h 27m
ISP - SJU
Frontier
1:25 am - 9:42 am
American Airlines
1 Stop
7h 17m
ISP - SJU
American Airlines
4:32 am - 5:27 pm
American Airlines
2 Stops
11h 55m
ISP - SJU
American Airlines

Related info for your journey

Useful info, stats and facts about Islip to San Juan flights.

Flight FAQs

From Islip to San Juan

Are flight prices decreasing from Islip to San Juan due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Islip and San Juan for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Islip Long Island to San Juan to control the spread of COVID-19?

Delta is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. New policies for travelers booking flights from Islip Long Island to San Juan include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Islip Long Island to San Juan have flexible cancellations due to COVID-19?

Frontier, American Airlines, and JetBlue are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Islip to San Juan for under $200 on Cheapflights?

Yes, there are multiple flights from Islip to San Juan for under $200. The cheapest flight booked recently is on Frontier for just $116, but on average you can expect to pay $206.

Are there nonstop flights from Islip to San Juan for under $100 on Cheapflights?

There are no nonstop flights from Islip to San Juan, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Islip to San Juan for under $400?

There are currently 12+ open flights from Islip to San Juan within the next 7 days for less than $400.

Is Islip weather warmer or cooler than San Juan?

With an average temperature of 90 °F, peak weather can be found in June. As a traveler, expect to see changes in flight prices during that period. The temperatures in San Juan are hotter than in Islip.

How long is the flight from Islip to San Juan?

American Airlines and Frontier can get you from Islip to San Juan in just under 6h 35m. Your travel time can differ by up to 1h. This flight may include one or multiple stops.

What are the cheapest airlines flying from Islip to San Juan round-trip?

Frontier, at $116, was found to be the cheapest airline from Islip to San Juan. An alternate airline flying to your destination would be American Airlines. Frontier is currently priced 73% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Islip to San Juan one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $182. Users have also found tickets on American Airlines for as little as $186.

Alternative routes for Islip to San Juan

Destination information for San Juan

Things to know before you go. Useful info for your trip from Islip to San Juan
Today's exchange rate
$1 = $1.00
Average temperature for January in San Juan
82.4 °F
Avg rainfall for January in San Juan
3.6 ″

Airports servicing Islip

Airports servicing San Juan

San Juan Isla Grande (SIG)
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