Distance From Keflavik International Airport to San Francisco International Airport, KEF - SFO Distance

The distance from Keflavik International Airport (KEF) to San Francisco International Airport (SFO) is 4193 miles or 6748 kilometers or 3641 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 Reykjavík ( Iceland ) to San Francisco ( United States )?

A one-way nonstop (direct) flight between Reykjavík and San Francisco takes around 9 hours 38 minutes.

Estimated flight time from Keflavik International Airport, Reykjavík, Iceland to San Francisco International Airport, San Francisco, United States is 9 hours 38 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 - SFO

Kilometers		6748 km
Statute Miles		4193 miles
Nautical Miles		3641 nm
Avg. Time of Flight		9 hours 38 minutes

Keflavik International Airport to San Francisco International Airport Flight Route Map - KEF to SFO Flight Path

Location of Keflavik International Airport & San Francisco International Airport is given below.
Click the map to view Reykjavík to San Francisco nonstop flight path and travel direction.

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

Nonstop flight route between Reykjavík, Iceland and San Francisco, United States.

Time Difference Between the Airports • KEF - SFO

Time difference between Reykjavík (Iceland) and San Francisco (United States) is 8 Hours.
San Francisco time is 8 Hours behind Reykjavík.

Location	Local Time
Reykjavík (Iceland)	2025-12-14, 18:06:50 GMT
San Francisco (United States)	2025-12-14, 10:06:50 PST

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

Keflavik International Airport (KEF / BIKF) Reykjavík, Iceland

Destination

San Francisco International Airport (SFO / KSFO) San Francisco, United States