The cheapest times to fly from LHR to SYD are

  • February 5th to April 1st
  • April 16th to July 1st
  • October 22nd to December 9th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from LHR to SYD is late October to early November. Prices can be as high as $1553 for Friday flights during late December, or as low as $728 for Monday flights around late October to early November.


When to Fly to Sydney

Flying from London (LHR) to Sydney (SYD) will usually cost between $760 to $1239 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late October to early November with an average ticket price of $743. Due to high demand the most expensive time to fly is late December, with an average price of $1379. Planning your trip to low-cost times can easily save you $636 on economy flights and even more on first-class flights. Generally, any price below $889 can be considered a good price for a round-trip LHR to SYD flight.

See below for a graph of average weekly prices for the LHR to SYD route. All prices are for round-trip tickets in USD.

LHR to SYD Flight Prices

Compared to other flights, the LHR to SYD flight is cheaper than the average and costs slightly more than the average flight leaving from London. The average price per mile (for a direct flight) is $0.05, which is far below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to depart and return on this flight. Fridays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $89 (9%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $894. Return trip prices are from the SYD to LHR flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from LHR to SYD can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 20 hour 1 minutes may not be realistic.


Flight Questions Answered

Still have questions about flying from LHR to SYD? We’ve got answers.

Which airlines fly this route?

You can find 66 major airlines flying this route most often: Aegean, Aer Lingus, Aeroflot, Air Canada, Air China, Air France, Air India, Air New Zealand, Air Serbia, AirAsia, AirAsia X, Alitalia, American, ANA, Asiana, Austrian, Avianca, Bangkok Airways, Beijing Capital, British Airways, Cambodia Angkor Air, Cathay Pacific, China Airlines, China Eastern, China Southern, Delta, EgyptAir, Emirates, Etihad, EVA Air, Fiji Airways, Finnair, Firefly, Garuda Indonesia, Gulf Air, Hainan, Iberia, JAL, Jetstar, KLM, Korean Air, LOT, Lufthansa, Malaysia Airlines, Malindo Air, MEA, Oman Air, Philippine Airlines, Qantas, Qatar Airways, Royal Brunei, SAS, Scoot, Singapore Airlines, SriLankan, SWISS, THAI, Thai AirAsia X, Tianjin Airlines, Tigerair, Turkish Airlines, United, Vietnam Airlines, Virgin Atlantic, Virgin Australia, Xiamen, and potentially more during busy seasons.

How far away is it from Sydney International Airport to London Heathrow Airport?

The distance between the two airports is roughly 10574 miles or 17017 kilometers.

How long does it take to fly from LHR to SYD?

The real-world flight time for a nonstop LHR to SYD flight is about 20 hour 1 minutes.

How many flights go between London and Sydney?

It depends on the day of the week and the date, but a typical day might have around 110 available flights from LHR to SYD.


Airport Location Info


Departing Airport

Origination code LHR
Origination airport name London Heathrow Airport
City London
Country the United Kingdom
Latitude 51.5
Longitude -0.5

Return Airport

Destination code SYD
Destination airport name Sydney International Airport
City Sydney
Country Australia
Latitude -33.9
Longitude 151.2


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.