Cheap flights from London Heathrow Airport to Sydney from $806

The month of May is, on average, the cheapest month to fly to Sydney from London Heathrow Airport, with most prices found around $1,670. If you aren’t able to travel to Sydney during the month of May, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $1,746.

Our data shows that Monday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $2,007. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $3,298.

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

You are more likely to see cheaper flights to Sydney from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,999 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from London Heathrow Airport for as low as $1,746 on momondo.

There are 2 cabin classes available to choose from on London Heathrow Airport to Sydney flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 1% on your flight if you consider stops on a London Heathrow Airport to Sydney flight.

Air India and British Airways are the most popular carriers operating from London Heathrow to Sydney Kingsford Smith

Etihad Airways, China Southern and Singapore Airlines are the top three most popular airlines that fly to Sydney from London Heathrow Airport according to our data. Etihad Airways is the first choice among our users, with 43% of people opting to fly with this airline when travelling to Sydney. Keep in mind that there are 10 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

Abu Dhabi (AUH) was the most common stop: 29% of momondo users choosing one-stop flights on this route connected there.

Flights via Shanghai (PVG) offer the lowest average return price of $1,691.

Flights connecting via Singapore (SIN) have the shortest average one-way travel time: 22h 17m.

Singapore (SIN) has the shortest average stopover time for this route: 1h 28m.

The number of flights available between London Heathrow Airport and Sydney is 2 per day as of September 2026. The most frequent departure time is 22:00, with 100% of daily flights leaving in the evening.

The number of flights available between London Heathrow Airport and Sydney is 18 per week as of September 2026. The most frequent departure day is Tue, with 17% of weekly flights leaving on this day.