Great Circle Distance between Heathrow and Cairns International is 9,415 miles. Cairns's IATA airport code is CNS. One World Lounge Details Here.
Climate:
The most popular time of year to visit Cairns is between June and October. This is considered the best time to visit with crystal clear skies, cool breezes and perfect scuba-diving on the Great Barrier Reef. The wet season usually begins to build up around December, giving humid days and possibly stormy nights. Most rainfall occurs during January, February and March, and is usually in the form of heavy tropical storms in the late afternoons.