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$1,404+ Cheap flights from Islip, NY (ISP) to Reykjavik

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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — REK
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Islip to Reykjavik

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Reykjavik (IS1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 28, 2025.

Round-trip from

$1,404
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$447
From Islip Long Island to Reykjavik
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
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Find flight deals from Islip to Reykjavik

Cheapest flights from Islip to Reykjavik
Explore the most affordable flight options available from Islip to Reykjavik. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Mytrip deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2410:50 amISP - KEF
2 stops37h 55mMultiple Airlines
Thu 5/14:55 pmKEF - ISP
2 stops26h 20mMultiple Airlines
Deal found 3/27$1,404

Cheapflights Fare Finder

Customize your flight search to find flights from Islip to Reykjavik 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, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Islip to Reykjavik that are best for you.

Fly from

Islip

Fly to

Reykjavik

Route

Depart

Return

Price

IslipReykjavik

ISP - KEF

ISPKEF

Islip Long Island

Thu 4/24

10:50 am-4:45 am

2 stops37h 55m

Reykjavik Keflavik Intl

Thu 5/1

4:55 pm-3:15 pm

2 stops26h 20m

$1,404

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Best time to book a flight from Islip to Reykjavik

Have a flexible travel schedule? Discover the best time to fly to Reykjavik from Islip with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Islip to Reykjavik

What is the cheapest month to book a flight from Islip, New York to Reykjavik?

Currently, November is the cheapest month in which you can book a flight from Islip, New York to Reykjavik (average of $328). Flying from Islip, New York to Reykjavik in July is currently the most expensive (average of $651). 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.

Rainfall in Reykjavik by month

Plan your trip to Reykjavik by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Reykjavik ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik when rainfall is around 1.6 in.

Temperature in Reykjavik by month

Plan your trip to Reykjavik by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Reykjavik, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Related info for your journey

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

  • What airport do you fly from for flights from Islip to Reykjavik?

    Islip Long Island (ISP) is the airport you will fly out of if you book a flight from Islip to Reykjavik. You should not have trouble finding flights to Reykjavik from Long Island; the airport handles an average of 0 outbound flights to Reykjavik per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Islip airport to Reykjavik. It is only a 7.2 mi journey to Long Island (ISP) from Islip’s city center.

  • Can I find deals for flights from Islip to Reykjavik that include hotel bookings?

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

  • How can I find direct flights from Islip to Reykjavik?

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

  • Can I find deals for business class flights from Islip to Reykjavik?

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

  • What is the cheapest month to book a flight from Islip, New York to Reykjavik?

    Currently, November is the cheapest month in which you can book a flight from Islip, New York to Reykjavik (average of $328). Flying from Islip, New York to Reykjavik in July is currently the most expensive (average of $651). 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.

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