In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

If weather is an important factor for your trip to Islip, New York, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denmark to Islip, New York as you normally would.

What airport do you fly into for flights to Islip from Denmark?

Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly into when you book flights from Denmark to Islip.

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

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

How can I find direct flights from Denmark to Islip?

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

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

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

$1,219+ Cheap Flights from Denmark to Islip, NY

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Cheapest flights from Denmark to Islip
Explore the most affordable flight options available from Denmark to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Thu 11/277:05 amCPH - ISP

3 stops18h 40mMultiple Airlines

Thu 12/47:30 amISP - CPH

3 stops24h 30mMultiple Airlines

Deal found 10/28

$1,219

Best flights from Denmark to Islip
Discover carefully curated flight deals from Denmark to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2025.

Thu 11/277:05 amCPH - ISP

3 stops18h 40mMultiple Airlines

Thu 12/47:30 amISP - CPH

3 stops24h 30mMultiple Airlines

Deal found 10/28

$1,219

Last-minute flights from Denmark to Islip
Discover last-minute flight deals from Denmark to Islip. Data last updated October 30, 2025 and is based on user searches.

Thu 11/277:05 amCPH - ISP

3 stops18h 40mMultiple Airlines

Thu 12/47:30 amISP - CPH

3 stops24h 30mMultiple Airlines

Deal found 10/28

$1,219

Cheap flight deals from Denmark to Islip

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,219 (Mytrip)
Popular in	July
Cheapest in	March
Average price	$523

Provider with most accurate pricing for Kastrup Copenhagen-New York (NYC) flight deals.

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Provider most trusted by Cheapflights users for Kastrup Copenhagen-New York (NYC) flights.

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From Denmark to Islip Long Island

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($78 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

CopenhagenIslip

CPH - ISP

CPHISP

Kastrup Copenhagen

Thu 11/27

7:05 am-7:45 pm

3 stops18h 40m

Islip Long Island

Thu 12/4

7:30 am-2:00 pm

3 stops24h 30m

$1,219

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Best time to book a flight from Denmark to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Denmark 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 Denmark to Islip

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

Currently, November is the cheapest month in which you can book a flight from Denmark to Islip, New York (average of $222). Flying from Denmark to Islip, New York in July is currently the most expensive (average of $454). 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.

Related info for your journey

What airport do you fly into for flights to Islip from Denmark?
Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly into when you book flights from Denmark to Islip.
Can I find deals for flights from Denmark to Islip that include hotel bookings?
Yes. In addition to deals on Denmark to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Denmark to Islip?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denmark to Islip.
Can I find deals for business class flights from Denmark to Islip?
Yes. Cheapflights offers flight deals from Denmark to Islip 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 Denmark to Islip, New York?
Currently, November is the cheapest month in which you can book a flight from Denmark to Islip, New York (average of $222). Flying from Denmark to Islip, New York in July is currently the most expensive (average of $454). 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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$1,219+ Cheap flights from Denmark to Islip, NY (ISP)

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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Denmark to Islip with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Denmark to Islip

Cheapest flights from Denmark to IslipExplore the most affordable flight options available from Denmark to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Explore the most affordable flight options available from Denmark to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Cheap flight deals from Denmark to Islip

Keep the following information in mind while searching for Denmark to Islip flight deals. Data was last updated October 30, 2025.

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

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Use the filters below to find and compare flights from Denmark to Islip that are best for you.

Best time to book a flight from Denmark to Islip

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

Cheapflights Insights

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

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

Related info for your journey

Find useful and relevant information for your journey from Denmark to Islip. 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 into for flights to Islip from Denmark?

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

How can I find direct flights from Denmark to Islip?

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

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

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Cheapest flights from Denmark to Islip
Explore the most affordable flight options available from Denmark to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.