Distance From Rainbow Ranch Airport to Keflavik International Airport

The distance from Rainbow Ranch Airport () to Keflavik International Airport (KEF) is 3566 miles or 5739 kilometers or 3097 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Idaho Falls ( United States ) to Reykjavík ( Iceland )?

A one-way nonstop (direct) flight between Idaho Falls and Reykjavík takes around 8 hours 11 minutes.

Estimated flight time from Rainbow Ranch Airport, Idaho Falls, United States to Keflavik International Airport, Reykjavík, Iceland is 8 hours 11 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - KEF

Kilometers		5739 km
Statute Miles		3566 miles
Nautical Miles		3097 nm
Avg. Time of Flight		8 hours 11 minutes

Rainbow Ranch Airport to Keflavik International Airport Flight Route Map - to KEF Flight Path

Location of Rainbow Ranch Airport & Keflavik International Airport is given below.
Click the map to view Idaho Falls to Reykjavík nonstop flight path and travel direction.

Click to see flight route on Google Map between Idaho Falls, United States and Reykjavík, Iceland. .

Nonstop flight route between Idaho Falls, United States and Reykjavík, Iceland.

Time Difference Between the Airports • - KEF

Time difference between Idaho Falls (United States) and Reykjavík (Iceland) is 6 Hours.
Reykjavík time is 6 Hours ahead of Idaho Falls.

Location	Local Time
Idaho Falls (United States)	2026-06-21, 12:00:56 MDT
Reykjavík (Iceland)	2026-06-21, 18:00:56 GMT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Rainbow Ranch Airport ( / ID87) Idaho Falls, United States

Destination

Keflavik International Airport (KEF / BIKF) Reykjavík, Iceland