Cheap flights from London Heathrow Airport to Sydney from $846

The month of May is, on average, the cheapest month to fly to Sydney from London Heathrow Airport, with most prices found around $1,757. 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 $1,833.

Our data shows that Wednesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $1,912. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $3,490.

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 $2,093 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 $1,942 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.

As of October 2026, prices for London Heathrow Airport to Sydney flights are approximately 17% cheaper when compared to flights at the same time last year.

Shenzhen Airlines and Korean Air are the most popular carriers operating from London Heathrow to Sydney Kingsford Smith

Etihad Airways, China Southern and Qantas Airways 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 38% of people opting to fly with this airline when travelling to Sydney. Keep in mind that there are 12 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

Dubai (DXB) was the most common stop: 23% of momondo users choosing one-stop flights on this route connected there.

Flights via Shanghai (PVG) offer the lowest average return price of $1,752.

Flights connecting via Doha (DOH) have the shortest average one-way travel time: 22h 20m.

New Delhi (DEL) has the shortest average stopover time for this route: 1h 20m.

The number of flights available between London Heathrow Airport and Sydney is 2 per day as of October 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 19 per week as of October 2026. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.