$670 Cheap Flights from Islip (ISP) to Frankfurt (FRA)

View $670 flight on Thu, Dec 11, 2025Opens in a new window

Popular airlines from MacArthur Airport (ISP) to Frankfurt Airport (FRA)

Cheap Flights from Islip to Frankfurt (ISP-FRA)

Prices were available within the past 7 days and start at $670 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from MacArthur Airport (ISP) to Frankfurt Intl. Airport (FRA) cost?
Secure a cheap one-way flight from $670 or cheap return flight from MacArthur Airport (ISP) to Frankfurt Intl. Airport (FRA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from MacArthur Airport (ISP) to Frankfurt Intl. Airport (FRA)?
Planning your getaway for is a good way to save, as it's the cheapest month for flights between ISP and FRA. You'll typically find the lowest fares during the off-season.
Which airlines fly direct from MacArthur Airport (ISP) to Frankfurt Intl. Airport (FRA)?
There are no direct routes from Islip, NY (ISP-MacArthur) to Frankfurt Intl. Airport (FRA). However, you'll find other airports that offer nonstop flights. Board your plane at John F. Kennedy Intl. Airport (JFK) and travel straight to Frankfurt without a layover.
What is the cheapest airline that flies from MacArthur Airport (ISP) to Frankfurt Intl. Airport (FRA)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll take you from ISP to FRA. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from MacArthur Airport (ISP) to Frankfurt Intl. Airport (FRA)?
You'll have to catch a flight with a layover if you're traveling from MacArthur Airport (ISP) to Frankfurt Intl. Airport (FRA). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from ISP to FRA?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* But this can change based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from MacArthur Airport (ISP) to Frankfurt Intl. Airport (FRA)?
To arrive at Frankfurt Intl. Airport (FRA) on time, pick a flight that leaves from MacArthur Airport (ISP) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from MacArthur Airport (ISP) to Frankfurt Intl. Airport (FRA) last-minute?
Booking your flight from ISP to FRA just before your trip is usually more expensive. However, if there's some wiggle room with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book an ISP to FRA flight and hotel package?
Opting for an ISP to FRA flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our impressive range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from MacArthur Airport (ISP) to Frankfurt Intl. Airport (FRA)?
Usually, it's possible to cancel or reschedule your ISP to FRA flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
MacArthur
Destination airport
Frankfurt Intl.
Distance
3811 mi

Book with confidence

Islip to Frankfurt Flights

The cheapest times to fly from Islip to Frankfurt

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Islip to Frankfurt are during the month of . You can find some of the cheapest flights from Islip to Frankfurt with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Islip to Frankfurt

Sunday is one of the best days to book for cheap flights from Islip to Frankfurt: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Islip to Frankfurt

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Islip to Frankfurt in 2025. You can also book with separate airlines for your outbound and return journeys, from $670 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Islip to Frankfurt flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Islip to Frankfurt airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Islip to Frankfurt Flights

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*Available to One Key members.