Distance From Northeast Florida Regional Airport to Keflavik International Airport, UST - KEF Distance

The distance from Northeast Florida Regional Airport (UST) to Keflavik International Airport (KEF) is 3438 miles or 5533 kilometers or 2986 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 St Augustine ( United States ) to Reykjavík ( Iceland )?

A one-way nonstop (direct) flight between St Augustine and Reykjavík takes around 7 hours 54 minutes.

Estimated flight time from Northeast Florida Regional Airport, St Augustine, United States to Keflavik International Airport, Reykjavík, Iceland is 7 hours 54 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 • UST - KEF

Kilometers		5533 km
Statute Miles		3438 miles
Nautical Miles		2986 nm
Avg. Time of Flight		7 hours 54 minutes

Northeast Florida Regional Airport to Keflavik International Airport Flight Route Map - UST to KEF Flight Path

Location of Northeast Florida Regional Airport & Keflavik International Airport is given below.
Click the map to view St Augustine to Reykjavík nonstop flight path and travel direction.

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

Nonstop flight route between St Augustine, United States and Reykjavík, Iceland.

Time Difference Between the Airports • UST - KEF

Time difference between St Augustine (United States) and Reykjavík (Iceland) is 4 Hours.
Reykjavík time is 4 Hours ahead of St Augustine.

Location	Local Time
St Augustine (United States)	2026-03-21, 09:58:26 EDT
Reykjavík (Iceland)	2026-03-21, 13:58:26 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

Northeast Florida Regional Airport (UST / KSGJ) St Augustine, United States

Destination

Keflavik International Airport (KEF / BIKF) Reykjavík, Iceland