Cheap flights from London to Cairns from $789

The cheapest month to fly to Cairns from London is in February. Flight prices, which tend to average around $1,921, are often lower during this time because this is during the off-season. If you are unable to visit Cairns during the month of February, then departing from London during the month September is also very affordable. Most momondo users find prices during this month for around $2,001.

You are more likely to see cheaper flights to Cairns from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Cairns for around $2,434 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cairns from London for as low as $1,869 on momondo.

You could potentially save up to 17% on your flight if you consider stops on a London to Cairns flight.

As of February 2026, prices for London to Cairns flights are approximately 17% more expensive when compared to flights at the same time last year.

Historically, on average around 11% of flights between London and Cairns have experienced a delay on any given week. The average delay length over the past 12 months has been 99 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Air China have had the fewest delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.