Question 1

What is the cheapest month to book a flight from Islip, New York to San José, San José Province?

Accepted Answer

Currently, September is the cheapest month in which you can book a flight from Islip, New York to San José, San José Province (average of $398). Flying from Islip, New York to San José, San José Province in March is currently the most expensive (average of $555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 2

E

Accepted Answer

In terms of precipitation, rainfall in San José, San José Province ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit San José, San José Province when rainfall is around 0.0 in.

Question 3

E

Accepted Answer

If weather is an important factor for your trip to San José, San José Province, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

Question 4

How far in advance should I book a flight from Islip, New York to San José, San José Province?

Accepted Answer

To save up to 15% on this flight, we recommend booking at least 46 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Islip, New York to San José, San José Province from $399 1-2 weeks out and tickets from $451 for flights departing within the next 72 hours.

Question 5

What is the cheapest month to fly from Islip, New York to San José, San José Province?

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to San José, San José Province. Flights to San José, San José Province from Islip, New York in September are about $464 on average during September, but can be found for as low as $204.

Question 6

What is the cheapest time of day to fly from ISP to SJO?

Accepted Answer

When flying from Islip, New York to San José, San José Province, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Question 7

Can I find deals for flights from Islip to San José that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Islip to San José flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 8

How can I find direct flights from Islip to San José?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to San José.

Question 9

Can I find deals for business class flights from Islip to San José?

Accepted Answer

Yes. Cheapflights offers flight deals from Islip to San José by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Popular in	December
Cheapest in	September
Average price	$416

$879+ Cheap flights from Islip, NY (ISP) to San José (SJO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/25. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Islip to San JoséExplore the most affordable flight options available from Islip to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2025.

Explore the most affordable flight options available from Islip to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2025.

Best time to book a flight from Islip to San José

Have a flexible travel schedule? Discover the best time to fly to San José from Islip with our price prediction graph.

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What is the cheapest month to book a flight from Islip, New York to San José, San José Province?

Related info for your journey

Find useful and relevant information for your journey from Islip to San José. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Islip to San José that include hotel bookings?

How can I find direct flights from Islip to San José?

Can I find deals for business class flights from Islip to San José?

What is the cheapest month to book a flight from Islip, New York to San José, San José Province?

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Cheapest flights from Islip to San José
Explore the most affordable flight options available from Islip to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2025.