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Interlaken

$1,643+ Cheap flights from Islip, NY (ISP) to Interlaken, Switzerland

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 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — ZRH
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Islip to Interlaken

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

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$1,643
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$742
Provider with most accurate pricing for New York (NYC)-Zurich flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Zurich flights.
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From Islip Long Island to Interlaken
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Highest demand for flights based on searches. 1% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Islip to Interlaken

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

This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:40 pmISP - ZRH
1 stop16h 30mMultiple Airlines
Mon 1/57:10 amZRH - ISP
2 stops37h 29mMultiple Airlines
Deal found 10/27$1,643
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2812:40 pmISP - ZRH
1 stop16h 30mMultiple Airlines
Mon 1/57:25 pmZRH - ISP
2 stops30h 20mMultiple Airlines
Deal found 10/27$1,648
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:40 pmISP - ZRH
1 stop16h 30mMultiple Airlines
Tue 1/611:00 amZRH - ISP
2 stops33h 39mMultiple Airlines
Deal found 10/27$1,750
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:40 pmISP - ZRH
1 stop16h 30mMultiple Airlines
Thu 1/110:25 amZRH - ISP
2 stops15h 20mMultiple Airlines
Deal found 10/27$1,931
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:40 pmISP - ZRH
1 stop16h 30mMultiple Airlines
Sun 1/41:00 pmZRH - ISP
2 stops30h 09mMultiple Airlines
Deal found 10/27$1,994
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:40 pmISP - ZRH
1 stop16h 30mMultiple Airlines
Sat 1/31:00 pmZRH - ISP
2 stops30h 09mMultiple Airlines
Deal found 10/27$2,037
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:40 pmISP - ZRH
1 stop16h 30mMultiple Airlines
Fri 1/211:00 amZRH - ISP
2 stops30h 04mMultiple Airlines
Deal found 10/27$2,396
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/128:29 pmISP - ZRH
2 stops33h 36mMultiple Airlines
Fri 12/195:30 pmZRH - ISP
1 stop28h 45mMultiple Airlines
Deal found 10/27$2,501
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2612:40 pmISP - ZRH
1 stop16h 30mMultiple Airlines
Thu 1/18:50 pmZRH - ISP
2 stops28h 55mMultiple Airlines
Deal found 10/27$2,561
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2612:40 pmISP - ZRH
1 stop16h 30mMultiple Airlines
Sat 1/310:40 amZRH - ISP
2 stops39h 05mMultiple Airlines
Deal found 10/27$3,408

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Interlaken 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 October 30, 2025.
Use the filters below to find and compare flights from Islip to Interlaken that are best for you.

Fly from

Islip

Fly to

Interlaken

Route

Depart

Return

Price

IslipZurich

ISP - ZRH

ISPZRH

Islip Long Island

Mon 12/29

12:40 pm-11:10 am

1 stop16h 30m

Zurich

Mon 1/5

7:10 am-2:39 pm

2 stops37h 29m

$1,643

IslipZurich

ISP - ZRH

ISPZRH

Islip Long Island

Sun 12/28

12:40 pm-11:10 am

1 stop16h 30m

Zurich

Mon 1/5

7:25 pm-7:45 pm

2 stops30h 20m

$1,648

IslipZurich

ISP - ZRH

ISPZRH

Islip Long Island

Mon 12/29

12:40 pm-11:10 am

1 stop16h 30m

Zurich

Tue 1/6

11:00 am-2:39 pm

2 stops33h 39m

$1,750

IslipZurich

ISP - ZRH

ISPZRH

Islip Long Island

Mon 12/29

12:40 pm-11:10 am

1 stop16h 30m

Zurich

Thu 1/1

10:25 am-7:45 pm

2 stops15h 20m

$1,931

IslipZurich

ISP - ZRH

ISPZRH

Islip Long Island

Mon 12/29

12:40 pm-11:10 am

1 stop16h 30m

Zurich

Sun 1/4

1:00 pm-1:09 pm

2 stops30h 09m

$1,994

IslipZurich

ISP - ZRH

ISPZRH

Islip Long Island

Mon 12/29

12:40 pm-11:10 am

1 stop16h 30m

Zurich

Sat 1/3

1:00 pm-1:09 pm

2 stops30h 09m

$2,037

IslipZurich

ISP - ZRH

ISPZRH

Islip Long Island

Mon 12/29

12:40 pm-11:10 am

1 stop16h 30m

Zurich

Fri 1/2

11:00 am-11:04 am

2 stops30h 04m

$2,396

IslipZurich

ISP - ZRH

ISPZRH

Islip Long Island

Fri 12/12

8:29 pm-12:05 pm

2 stops33h 36m

Zurich

Fri 12/19

5:30 pm-4:15 pm

1 stop28h 45m

$2,501

IslipZurich

ISP - ZRH

ISPZRH

Islip Long Island

Fri 12/26

12:40 pm-11:10 am

1 stop16h 30m

Zurich

Thu 1/1

8:50 pm-7:45 pm

2 stops28h 55m

$2,561

IslipZurich

ISP - ZRH

ISPZRH

Islip Long Island

Fri 12/26

12:40 pm-11:10 am

1 stop16h 30m

Zurich

Sat 1/3

10:40 am-7:45 pm

2 stops39h 05m

$3,408

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Best time to book a flight from Islip to Interlaken

Have a flexible travel schedule? Discover the best time to fly to Interlaken 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 Interlaken

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

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Interlaken (average of $283). Flying from Islip, New York to Interlaken in June is currently the most expensive (average of $527). 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

Find useful and relevant information for your journey from Islip to Interlaken. 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 Interlaken?

    Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly out of when you book flights from Islip to Interlaken. 0 airlines have flights from Long Island to Interlaken on a regular basis. Booking flights from Islip Long Island to Interlaken should not be difficult; the airport handles an average of 0 outbound flights to Interlaken per day.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip to Interlaken 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 Interlaken?

    Currently, January is the cheapest month in which you can book a flight from Islip, New York to Interlaken (average of $283). Flying from Islip, New York to Interlaken in June is currently the most expensive (average of $527). 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.

See more FAQs

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