$229 Find Cheap Flights from Islip to Costa Rica - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Costa Rica departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Islip to Costa Rica

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
San José
San José2 stops$536
Liberia
Liberia1 stop$568
San José
San José2 stops$536
Liberia
Liberia1 stop$568

Book Cheap Islip to Costa Rica Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Costa Rica that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to Costa Rica

Thu, Aug 27 - Thu, Sep 3
Southwest Logo
6:45 am - 6:40 pm
ISP
-
SJO
13h 55m
2 stops
Southwest Logo
9:00 am - 10:05 pm
SJO
-
ISP
11h 05m
2 stops
$536Southwest
Sun, Aug 30 - Sun, Sep 6
JetBlue Logo
6:00 am - 1:01 pm
ISP
-
LIR
9h 01m
1 stop
JetBlue Logo
2:06 pm - 9:34 pm
LIR
-
ISP
29h 28m
1 stop
$568JetBlue
Thu, Aug 27 - Thu, Sep 3
Southwest Logo
6:45 am - 12:45 pm
ISP
-
SJO
8h 00m
1 stop
Southwest Logo
9:00 am - 9:30 pm
SJO
-
ISP
10h 30m
1 stop
$580Southwest
Fri, Oct 23 - Tue, Oct 27
JetBlue Logo
6:00 am - 12:55 pm
ISP
-
LIR
8h 55m
1 stop
JetBlue Logo
2:05 pm - 9:37 pm
LIR
-
ISP
29h 32m
1 stop
$582JetBlue
Sat, Nov 28 - Sat, Dec 5
Southwest Logo
5:30 am - 12:05 pm
ISP
-
LIR
7h 35m
1 stop
Southwest Logo
1:05 pm - 9:45 pm
LIR
-
ISP
7h 40m
1 stop
$630Southwest
Thu, Aug 20 - Sun, Aug 23
Southwest Logo
6:10 am - 6:40 pm
ISP
-
SJO
14h 30m
2 stops
Southwest Logo
9:00 am - 11:15 pm
SJO
-
ISP
12h 15m
1 stop
$718Southwest
Wed, Nov 11 - Wed, Nov 18
JetBlue Logo
6:00 am - 2:00 pm
ISP
-
LIR
9h 00m
1 stop
JetBlue Logo
3:05 pm - 9:35 am
LIR
-
ISP
17h 30m
2 stops
$722JetBlue
Thu, Aug 20 - Sun, Aug 23
Multiple Airlines Logo
7:09 pm - 3:11 pm
ISP
-
SJO
22h 02m
1 stop
Multiple Airlines Logo
7:07 am - 9:53 am
SJO
-
ISP
24h 46m
1 stop
$744Multiple Airlines
Wed, Nov 11 - Wed, Nov 18
JetBlue Logo
6:00 am - 2:00 pm
ISP
-
LIR
9h 00m
1 stop
JetBlue Logo
3:05 pm - 9:35 pm
LIR
-
ISP
29h 30m
1 stop
$779JetBlue
Thu, Aug 20 - Sun, Aug 23
Southwest Logo
6:10 am - 6:40 pm
ISP
-
SJO
14h 30m
2 stops
Southwest Logo
9:00 am - 10:35 pm
SJO
-
ISP
11h 35m
2 stops
$809Southwest
Booking Insights

KAYAK's insights & trends for Islip to Costa Rica flights

Get data-powered insights and trends into flights from Islip to Costa Rica to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Islip to Costa Rica?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Islip to Costa Rica were found on Southwest ($536) and JetBlue ($568).

Find deals

Good to know

Cheapest flight

$229
Flight from Islip to Liberia

FAQs - booking Costa Rica flights

  • How does KAYAK find such low prices on flights from Islip to Costa Rica?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Costa Rica.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Costa Rica?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Islip to Costa Rica is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to Costa Rica?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Islip to Costa Rica with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Costa Rica?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Islip to Costa Rica up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Islip to Costa Rica

Information on your arrival and departure airports

Islip (ISP)