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Did you mean flights from Reykjavik (Keflavik) to Islip, Long Island?
United States
Long Island MacArthur Airport
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Iceland
Keflavík International Airport
At present, there are no direct flights from Islip, Long Island to Reykjavik (Keflavik).
However, there are several flights from ISP to KEF with a stopover.
Select a stopover airport from the list below to see which airlines operate flights from ISP to KEF, and to see what flight schedules are available.
The winters in Reykjavik (Keflavik) are cold, with average temperatures usually below 0°C (32°F) and sometimes dropping to -30°C (-22°F). Summers are short and mild. The region is known for its stunning landscapes, untouched nature, and diverse wildlife.
The best time to visit is during the summer months, when you can enjoy abundant daylight and sunshine. For snow and ice enthusiasts, this destination offers year-round snow, though winters can be particularly cold and dark.

Unfortunately, there are no airlines that cover the full route (with 1 stopover) from Islip, Long Island ISP to Reykjavik (Keflavik) KEF at this moment.
All flights from Islip, Long Island to Reykjavik (Keflavik) are operated by a combination of multiple carriers, which are listed below:
Unfortunately, there are no alliances that cover the full route (with 1 stopover) from Islip, Long Island ISP to Reykjavik (Keflavik) KEF at this moment.
You can fly the full journey from ISP to KEF in Economy only.
For the first part of this route, flights in Economy are available only.
Again depending on your stopover airport, available classes for the second part of this route are Economy and Business Class.
In total there are 2 aircraft types that cover the full route from Islip, Long Island to Reykjavik (Keflavik). These aircrafts are:
All other flights from Islip, Long Island to Reykjavik (Keflavik) are operated by a combination of multiple aircraft types.
The distance between Islip, Long Island and Reykjavik (Keflavik) is 2,561 miles (4,121 kilometers).
However, because there are no direct flights between ISP and KEF, the distance of the full journey varies between 2,559 and 4,499 miles (or 4,118 and 7,240 kilometers), depending on your stopover airport.
Flights from Islip, Long Island to Reykjavik (Keflavik) take from 6 hours and 49 minutes up to 10 hours and 20 minutes, depending on your stopover airport.
Please note that these times refer to the actual flight times, excluding the stopover time in between connecting flights, as this depends on your stopover airport as well as your date(s) of travel.
There are 2 airports in Reykjavik (Keflavik): Keflavík International Airport (KEF) and Reykjavík Airport (RKV).
From 6 hours and 49 minutes up to 10 hours and 20 minutes, depending on your stopover airport.
Note that this excludes the layover time in between connecting flights.
Because there are no direct flights between ISP and KEF, the total distance of the full journey varies between 2,559 and 4,499 miles (or 4,118 and 7,240 kilometers), depending on your stopover airport.
At this moment, flights from Islip, Long Island to Reykjavik (Keflavik) are operated by a combination of multiple airlines. There is no airline that operates the route in full.
Cape Air, Icelandair, Southwest Airlines, Breeze Airways, Frontier Airlines and JetBlue operate several connecting flights, but only partly.
There are no alliances flying from Islip, Long Island to Reykjavik (Keflavik) at this moment.
You can fly the full route (with 1 stopover) in Economy only.
Aircraft types that fly the full route from Islip, Long Island to Reykjavik (Keflavik) (with 1 stopover):
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