At the moment, there are two airlines flying to Cairns. Go through the results to find the right flights for you – you can adjust the filters to see find even more flights to Cairns.
There are eight flights from London Heathrow to or via Cairns every week. Out of the two available airlines, the most popular ones are British Airways & Qantas. But that doesn’t necessarily mean they’ll be the best option for your travel dates. To see as many flights as possible, try widening your search to include other departure airports.
The distance between London Heathrow to Cairns is 15165 km. Normally, it takes about 26 hrs 50 mins to fly, and you can definitely expect the journey to be at least 26 hrs 15 mins. You can see the various flight times in the results.
If you want to travel in December, it's best to book your flights early, as this is peak season in Cairns. The cheapest month to fly is normally January – try searching three to four months prior to then to get a bargain. You can also search by month, which will reveal the cheapest time of the week to fly.