1905 kilometers / 1183 miles
or 1028 nautical miles.
Your flight will depart from London airport (51° 30' 30" N,0° 7' 31" W) and land at Reykjavik Keflavik airport (63° 59' 6'' N,22° 36' 21'' W).
London and Reykjavik Keflavik are in the same time zone and have the same time throughout the year.
Learn more about the time difference between London and Reykjavik Keflavik.
Disclaimers: there may be NO flights or direct flights from London to Reykjavik Keflavik, so in that case, the information should be just considered as "distance-only" calculation from London to Reykjavik Keflavik.