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Cheap flights from Islip to San José from $841

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Islip to San José departing on 2/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Islip to San José (ISP-SJO)

Cheap round-trip flights

JetBlue Logo
12:10 pm - 12:55 pmISP-SJO
25h 45m1 stop
JetBlue Logo
1:55 pm - 10:00 amSJO-ISP
19h 05m1 stop
$841JetBlue
Find Deal
sáb., feb. 21 - sáb., feb. 28
JetBlue Logo
12:10 pm - 12:55 pmISP-SJO
25h 45m1 stop
JetBlue Logo
1:55 pm - 10:00 amSJO-ISP
19h 05m1 stop
$876JetBlue
Find Deal
sáb., feb. 21 - sáb., feb. 28
JetBlue Logo
5:18 pm - 4:26 pmISP-SJO
24h 08m1 stop
JetBlue Logo
2:48 pm - 8:36 amSJO-ISP
16h 48m1 stop
$1,936JetBlue
Find Deal
vie., dic. 26 - sáb., ene. 3
JetBlue Logo
5:18 pm - 4:26 pmISP-SJO
24h 08m1 stop
JetBlue Logo
5:31 pm - 6:44 pmSJO-ISP
24h 13m1 stop
$2,192JetBlue
Find Deal
vie., dic. 26 - sáb., ene. 3
Southwest Logo
5:40 am - 8:30 pmISP-SJO
15h 50m2 stops
Southwest Logo
9:00 am - 8:45 pmSJO-ISP
10h 45m2 stops
$2,309Southwest
Find Deal
vie., dic. 26 - sáb., ene. 3

JetBlue flights from Islip to San José, San José Province

Our best JetBlue deals on Islip to San José, San José Province flight tickets
JetBlue
Feb 21
ISP12:10 pmIslip Long Island
25h 45m
1 stop
SJO12:55 pmSan José Juan Santamaria Intl
Feb 28
SJO1:55 pmSan José Juan Santamaria Intl
19h 05m
1 stop
ISP10:00 amIslip Long Island
$841
Find similar
JetBlue
Feb 21
ISP12:10 pmIslip Long Island
25h 45m
1 stop
SJO12:55 pmSan José Juan Santamaria Intl
Feb 28
SJO1:55 pmSan José Juan Santamaria Intl
19h 05m
1 stop
ISP10:00 amIslip Long Island
$876
Find similar
JetBlue
Dec 26
ISP5:18 pmIslip Long Island
24h 08m
1 stop
SJO4:26 pmSan José Juan Santamaria Intl
Jan 3
SJO2:48 pmSan José Juan Santamaria Intl
16h 48m
1 stop
ISP8:36 amIslip Long Island
$1,936
Find similar

Southwest flights from Islip to San José, San José Province

Our best Southwest deals on Islip to San José, San José Province flight tickets
Southwest
Sep 9
ISP6:05 amIslip Long Island
14h 50m
2 stops
SJO6:55 pmSan José Juan Santamaria Intl
Sep 30
SJO8:50 amSan José Juan Santamaria Intl
11h 15m
2 stops
ISP10:05 pmIslip Long Island
$727
Find similar
Southwest
Dec 26
ISP5:40 amIslip Long Island
15h 50m
2 stops
SJO8:30 pmSan José Juan Santamaria Intl
Jan 3
SJO9:00 amSan José Juan Santamaria Intl
10h 45m
2 stops
ISP8:45 pmIslip Long Island
$2,309
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Islip to San José, San José Province that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated septiembre 4, 2025.
Use the filters below to find and compare flights from Islip to San José, San José Province that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

sáb. 2/21

12:10 pm-12:55 pm

1 stop25h 45m

San José Juan Santamaria Intl

sáb. 2/28

1:55 pm-10:00 am

1 stop19h 05m

$841

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

sáb. 2/21

12:10 pm-12:55 pm

1 stop25h 45m

San José Juan Santamaria Intl

sáb. 2/28

1:55 pm-10:00 am

1 stop19h 05m

$876

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

vie. 12/26

5:18 pm-4:26 pm

1 stop24h 08m

San José Juan Santamaria Intl

sáb. 1/3

2:48 pm-8:36 am

1 stop16h 48m

$1,936

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

vie. 12/26

5:18 pm-4:26 pm

1 stop24h 08m

San José Juan Santamaria Intl

sáb. 1/3

5:31 pm-6:44 pm

1 stop24h 13m

$2,192

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

vie. 12/26

5:40 am-8:30 pm

2 stops15h 50m

San José Juan Santamaria Intl

sáb. 1/3

9:00 am-8:45 pm

2 stops10h 45m

$2,309

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to San José from

How to get the cheapest flight ticket from Islip to San José, San José Province

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to San José, San José Province?

The cheapest day to depart from Islip to San José, San José Province is on a Tuesday when prices can be found for as low as $482. The most expensive day to fly to San José, San José Province is Sunday, with ticket prices averaging around $587.

What is the cheapest time of day to depart on your flight to San José, San José Province?

In the evening is the cheapest time of day to fly from Islip to San José, San José Province when you can find flight prices for as low as $449. Flying to San José, San José Province in the evening is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to San José, San José Province, so prices are often more expensive at around $568 per ticket.

When to book flights from Islip to San José, San José Province

Are you open to changing your travel dates? Check out the ideal times to fly from Islip to San José, San José Province according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Islip to San José, San José Province (ISP to SJO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip to San José, San José Province

Direct flights

None
There are no direct flights from Islip to San José, San José Province. There are no popular flight routes from Islip to San José, San José Province.
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  • How far is Islip Long Island to San José Juan Santamaria Intl by plane?

    The straight-line distance from Islip Long Island to San José Juan Santamaria Intl is 2228.0 mi. By plane, this route typically takes 15h 50m.

  • When did momondo last update prices for flights from Islip Long Island Airport to San José Juan Santamaria Intl Airport?

    Prices for flights from Islip Long Island Airport to San José Juan Santamaria Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Islip Long Island Airport to San José Juan Santamaria Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to San José Juan Santamaria Intl Airport.

  • What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?

    The required travel and health documents for your San José Juan Santamaria Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San José Juan Santamaria Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Jacó
Alajuela
Monteverde
Heredia
Dominical
Santa Elena
Esterillos Este

Why use momondo?

Why should I use momondo to find a flight deal from Islip to San José?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Islip to San José. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Islip to San José with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San José from Islip with this policy.

How can momondo help me find flights from Islip to San José?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San José from Islip.

I’m not ready to book a flight from Islip to San José right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Islip to San José flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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