Cheap flights from London Heathrow Airport to Cairns from $920

The cheapest month to fly to Cairns from London Heathrow Airport is in February. Flight prices, which tend to average around $1,816, 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 Heathrow Airport during the month January is also very affordable. Most momondo users find prices during this month for around $2,104.

You are more likely to see cheaper flights to Cairns from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Cairns for around $2,566 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 Heathrow Airport for as low as $2,141 on momondo.

You could potentially save up to 18% on your flight if you consider stops on a London Heathrow Airport to Cairns flight.

As of July 2026, prices for London Heathrow Airport to Cairns flights are approximately 47% cheaper when compared to flights at the same time last year.

Historically, on average around 9% 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 138 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

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

According to our data, China Eastern have had the fewest delays on this route over the last 12 months, with about 6% of their flights experiencing any sort of delay.