Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London to Sydney
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cathay Pacific flights from London to Sydney
Our best Cathay Pacific deals on London to Sydney flight tickets
China Airlines flights from London to Sydney
Our best China Airlines deals on London to Sydney flight tickets
See travel insights to Sydney from
How to get the cheapest flight ticket from London to Sydney
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between London and Sydney?
What is the cheapest month to fly to Sydney?
The month of March is another great option to travel to Sydney, with average flight prices from London averaging around €959.
What is the cheapest day to depart on your flight to Sydney?
According to our data, Tuesday is the cheapest day to fly to Sydney from London. The lowest ticket price found for a Tuesday departure recently was €0. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around €1,259. These prices are subject to change though, so be sure to set up a Price Alert for flights to Sydney.
What is the cheapest time of day to depart on your flight to Sydney?
Flying to Sydney from London at midday is the least expensive time of day to depart. momondo users have found prices as low as €0 when looking at flights departing at midday. Try not to purchase tickets in the morning because they tend to be around €1,231. Of course, these prices can vary depending on the time of year and what airport you fly to.
How far in advance should I book a flight to Sydney?
You are more likely to see cheaper flights to Sydney from London when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around €1,173 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from London for as low as €936 on momondo.
How many flights depart from London to Sydney on average per day?
As of April 2025, there are 3 flights per day flying from London to Sydney. The most common time of day flights depart is 21:00, with 100% of flights taking off in the evening.
How many flights depart from London to Sydney on average per week?
As of April 2025, there are 21 flights per week flying from London to Sydney. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.
When to book flights from London to Sydney
Cheap London to Sydney (LON to SYD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Sydney
How far is London to Sydney Kingsford Smith by plane?
There are 16983.0 km between London and Sydney Kingsford Smith. Typically, this will take 22h 25m by plane in normal conditions.
When did momondo last update prices for flights from London to Sydney Kingsford Smith Airport?
Prices for flights from London to Sydney Kingsford Smith Airport are updated daily.
How old do you have to be to fly from London to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London to Sydney?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to Sydney is Airbus A380-800 (80.24% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (16.72%), Boeing 777-300ER (2.89%), and Airbus A380 (0.15%).
Travelling to a place near Sydney?
Book flights to Sydney if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from London to Sydney?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Sydney for you.
Can I find flights from London to Sydney with flexible booking policies on momondo?
All flight searches from London to Sydney on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from London to Sydney?
momondo provides multiple filters to help you find the best flight to Sydney from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from London to Sydney right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Sydney from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.