Cheap flights from Australia to London from £312

In general, February is the cheapest month to fly from Australia to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £867. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Australia averaging around £906.

On average, the least expensive day to fly to London Heathrow Airport from Australia is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £1,254. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Thursday is £2,021.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Australia to London Heathrow Airport in the afternoon for as low as £1,456. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £1,510 on average. Flights to London Heathrow Airport from Australia at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Sydney Kingsford Smith to London Heathrow for the best Australia - London Heathrow flight prices

You are more likely to see cheaper flights to London Heathrow Airport from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £1,057 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Australia for as low as £990 on momondo.

There are 4 cabin classes available to choose from on Australia to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

China Eastern, China Southern, and Air India are the most popular carriers operating from Australia to London Heathrow

Qantas Airways, Etihad Airways and Singapore Airlines are the top three most popular airlines that fly to London Heathrow Airport from Australia according to our data. Qantas Airways is the first choice among our users, with 27% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 13 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between Australia and London have experienced a delay on any given week. The average delay length over the past 12 months has been 136 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening 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. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Qantas Airways have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

The number of flights available between Australia and London Heathrow Airport is 2 per day as of October 2026. The most frequent departure time is 14:00, with 100% of daily flights leaving in the afternoon.

As of October 2026, 17 flights take off from Australia and land in London Heathrow Airport each week. The most common flight departure day for this route is Thu, with 24% of weekly flights taking off on this day.