Cheap flights from London to Sydney from £321
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Sydney departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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China Eastern flights from London to Sydney
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China Southern flights from London to Sydney
Our best China Southern deals on London to Sydney flight tickets
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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?
In general, May is the cheapest month to fly from London to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £784. If you don’t want to visit Sydney in May, then you should wait until March to fly from London, when ticket prices are also cheap, with an average price of £808.
What is the cheapest day to depart on your flight to Sydney?
The cheapest day to depart on your flight to Sydney is on a Monday when prices can be found for as low as £1,111. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,279.
What is the cheapest time of day to depart on your flight to Sydney?
According to our data, the cheapest time of day to fly to Sydney is in the afternoon. momondo users have found flights departing from London to Sydney in the afternoon for as low as £896. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Sydney, so prices are often more expensive at around £1,212 per ticket.
What is the cheapest London to Sydney Kingsford Smith flight route?
Fly from London Heathrow to Sydney Kingsford Smith for the best London - Sydney Kingsford Smith flight prices
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 weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around £973 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 for as low as £798 on momondo.
What cabin class options are available on London to Sydney Kingsford Smith flights?
There are 4 cabin classes available to choose from on London to Sydney Kingsford Smith flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on London to Sydney flights?
You could potentially save up to 37% on your flight if you consider stops on a London to Sydney flight.
How have London to Sydney flight prices changed over time?
As of July 2025, prices for London to Sydney flights are approximately 11% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from London to Sydney Kingsford Smith?
Air China and China Southern are the most popular carriers operating from London to Sydney Kingsford Smith
Which airlines fly to Sydney?
Singapore Airlines, China Southern and Cathay Pacific are the top three most popular airlines that fly to Sydney from London according to our data. Singapore Airlines is the first choice among our users, with 29% of people opting to fly with this airline when travelling to Sydney. Keep in mind that there are 33 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.
How many flights depart from London to Sydney on average per day?
3 flights are operational daily from London to Sydney as of July 2025. The most popular departure time for this route is 21:00, with 100% of flights per day taking off in the evening.
How many flights depart from London to Sydney on average per week?
As of July 2025, 21 flights take off from London and land in Sydney each week. The most common flight departure day for this route is Mon, with 14% of weekly 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?
Sydney Kingsford Smith is 10552.8 mi away from London. Flights usually cover this in 21h 25m, depending on flying conditions and air traffic around both airports.
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 were last updated today.
How many operators does momondo search for flights from London to Sydney Kingsford Smith Airport?
As of July 2025, there are 33 operators available to choose from for flights from London to Sydney Kingsford Smith Airport.
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 layovers 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 necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted 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 (51.42% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (34.11%) and Boeing 777-300ER (14.47%).
What is the most popular airline from London to Sydney?
Based on momondo bookings for flights between London and Sydney, the leading airline is China Eastern, making up 13% of the total bookings. Other popular airlines include China Southern with 11%, Singapore Airlines with 10%, and Emirates with 9%.
Best airlines flying from London to Sydney
Compare and see reviews for airlines that fly from London to Sydney with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £330 | Free Cancellation | Rating 8.2 41 reviews | |||
| PriceFrom £684 | Free Cancellation | Rating 7.3 3,895 reviews | |||
| PriceFrom £773 | Free Cancellation | Rating 7.5 1,654 reviews | |||
| PriceFrom £774 | Free Cancellation | Rating 7.6 809 reviews | |||
| PriceFrom £788 | Free Cancellation | Rating 7.5 194 reviews | |||
| PriceFrom £821 | Free Cancellation | Rating 6.8 7,207 reviews | |||
| PriceFrom £824 | Free Cancellation | Rating 6.8 74 reviews | |||
| PriceFrom £832 | Free Cancellation | Rating 7.5 1,465 reviews | |||
| PriceFrom £900 | Free Cancellation | Rating 7.6 1,306 reviews | |||
| PriceFrom £916 | Free Cancellation | Rating 8.3 1,505 reviews |
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?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Sydney. momondo saves you time and could save you money on your trip.
Can I find flights from London to Sydney with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for London to Sydney flights to just show those with flexible booking policies.
How can momondo help me find flights from London to Sydney?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from London.
I’m not ready to book a flight from London to Sydney right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of London to Sydney flights. All you need is a valid email address and we will do the rest; it is that quick and easy.