Cheap Flights from London (LHR) to Sidney (SNY)

Popular airlines from Heathrow Airport (LHR) to Sidney, NE (SNY)

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Sidney, NE (SNY) cost?
Secure a cheap one-way flight or cheap return flight from Heathrow Airport (LHR) to Sidney, NE (SNY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Heathrow Airport (LHR) to Sidney, NE (SNY)?
The cheapest month to fly from LHR to SNY is , when there's less demand. Off-peak months are usually when better flight deals are available between these airports.
What is the cheapest airline that flies from Heathrow Airport (LHR) to Sidney, NE (SNY)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from LHR to SNY. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Heathrow Airport (LHR) to Sidney, NE (SNY)?
You'll have to book a flight with a layover if you're traveling from Heathrow Airport (LHR) to Sidney, NE (SNY). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from LHR to SNY?
Typically you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Heathrow Airport (LHR) to Sidney, NE (SNY)?
To avoid potential delays on the Heathrow Airport (LHR) to Sidney, NE (SNY) route, travel before 3 PM. Departures after this hour are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Sidney, NE (SNY) last-minute?
Booking your plane ticket from LHR to SNY just before your getaway is usually more expensive. However, if there's some wiggle room with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a LHR to SNY flight and hotel package?
Securing a LHR to SNY flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Select from our extensive range of hotels and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Sidney, NE (SNY)?
If you booked your LHR to SNY flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

Travel information

Origin airport
Heathrow
Destination airport
Sidney
Distance
4535 mi

Book with confidence

London to Sidney Flights

The cheapest times to fly from London to Sidney

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Sidney are during the month of . You can find some of the cheapest flights from London to Sidney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Sidney

Sunday is one of the best days to book for cheap flights from London to Sidney: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from London to Sidney

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Sidney in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Sidney flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Sidney airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

London to Sidney Flights

Explore a world of travel with Expedia

*Available to One Key members.