Question 1

What is the cheapest London to Sydney Kingsford Smith flight route?

Accepted Answer

Fly from London Heathrow to Sydney Kingsford Smith for the best London - Sydney Kingsford Smith flight prices

Question 2

What cabin class options are available on London to Sydney Kingsford Smith flights?

Accepted Answer

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.

Question 3

How far in advance should I book a flight to Sydney?

Accepted Answer

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 £999 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 £830 on momondo.

Question 4

What is the cheapest time of day to depart on your flight to Sydney?

Accepted Answer

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 £917. 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 £1,207 per ticket.

Question 5

How have London to Sydney flight prices changed over time?

Accepted Answer

As of December 2025, prices for London to Sydney flights are approximately 16% cheaper when compared to flights at the same time last year.

Question 6

Which airport is the most popular for stopovers for flights between London and Sydney?

Accepted Answer

Abu Dhabi (AUH) was the most common stop: 15% of momondo users choosing one-stop flights on this route connected there.

Question 7

Which airlines fly to Sydney?

Accepted Answer

Cathay Pacific, Singapore Airlines and Etihad Airways are the top three most popular airlines that fly to Sydney from London according to our data. Cathay Pacific is the first choice among our users, with 27% of people opting to fly with this airline when travelling to Sydney. Keep in mind that there are 30 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

Question 8

Which stopover airport has the shortest connection time from London to Sydney?

Accepted Answer

Dubai (DXB) has the shortest average stopover time for this route: 1h 51m.

Question 9

Which stopover airport has the shortest travel time from London to Sydney?

Accepted Answer

Flights connecting via Dubai (DXB) have the shortest average one-way travel time: 22h 21m.

Question 10

What is the cheapest airline that flies from London to Sydney Kingsford Smith?

Accepted Answer

Etihad Airways, Air India, and SWISS are the most popular carriers operating from London to Sydney Kingsford Smith

Question 11

Which stopover airport offers the lowest fares from London to Sydney?

Accepted Answer

Flights via Chongqing (CKG) offer the lowest average return price of £656.

Question 12

What is the cheapest day to depart on your flight to Sydney?

Accepted Answer

The cheapest day to depart on your flight to Sydney is on a Monday when prices can be found for as low as £1,148. 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 £1,310.

Question 13

How many flights depart from London to Sydney on average per week?

Accepted Answer

As of December 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.

Question 14

What is the cheapest month to fly to Sydney?

Accepted Answer

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 £789. If you don’t want to visit Sydney in May, then you should wait until June to fly from London, when ticket prices are also cheap, with an average price of £844.

Question 15

How many flights depart from London to Sydney on average per day?

Accepted Answer

3 flights are operational daily from London to Sydney as of December 2025. The most popular departure time for this route is 21:00, with 100% of flights per day taking off in the evening.

Question 16

What is the typical price of a round-trip flight between London and Sydney?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from £1,063 to £1,652.
The lowest price recently found on this route was £770.

Question 17

What are the benefits of the different airports in London and Sydney?

Accepted Answer

Cheap flights from London Heathrow to Sydney are the more frequent option and Heathrow is the only airport you can catch a direct flight from. It's also the largest and busiest airport in the country and offers passengers a wide range of facilities and services. London Stansted Airport and London Gatwick are two airports where many low-cost airlines operate out of, so you'll typically find cheaper flights from London to Sydney flying from these airports. London Gatwick is located around 40min south of London city centre, which is easier to get to if you're staying in the south. Sydney Kingsford Airport is the main international airport operating out of Sydney and offers passengers a wide range of services and amenities designed to make their travel comfortable. You'll find a range of duty-free shops, bars and restaurants to grab a drink and a bite to eat at, as well as accessible toilets, assistance for the disabled, currency exchange services and luggage storage services.

Question 18

What is the best way to get in and out of airports in London and Sydney?

Accepted Answer

If you're booking flights from London Heathrow International Airport, the most convenient way to get to the airport is to take a taxi but they're usually the most expensive option. If you're travelling light, hop on the Heathrow Express at Paddington Station and you'll get there in 15 minutes. If you're flying from London Gatwick, the airport also has an express train which is the fastest way to get there. The Gatwick Express travels from London Victoria Station to Gatwick Airport in around 30 minutes. London Stansted also offers an express train that travels from Liverpool Street to Stansted Airport every 15 minutes and has a travel time of just under 50 minutes. Once you've gotten to Sydney Airport, you'll have two ways of getting to the city centre, via taxi or train. The taxi from the airport is typically the most convenient way to get to the city centre and will take you around 20 minutes. The train will take closer to 15 minutes and you can catch the train from the International Terminal located near the Circular Quay.

Which cities can you get to from Sydney Kingsford Smith International Airport?

The main city that's served by Sydney Airport is Sydney itself, which is roughly a 20min drive away from the airport. Many of the other cities are a fair distance away, so taking advantage of domestic flights is often the best way to travel to other cities nearby. Wollongong is a nearby city worth visiting that's easy to get to from the airport. You can head to the Sydney Airport train station and catch a train to Wollongong that'll take around 1h 30min with a minimal cost involved. Another city nearby that you can reach via train is Newcastle. You'll need to catch a train from the airport to Central Station and jump on a train from there to Newcastle. This trip will typically take around 3h 20min.

Question 19

Which airlines fly direct from London to Sydney?

Accepted Answer

Unfortunately, due to the distance, London to Sydney flights typically require at least one stopover along the way. Despite this, there are odd occasions where you'll find one-way flights from London to Sydney operated by Qantas Airways. These flights are typically more expensive than flights with a stopover and typically take around 22h 15min. Despite the limited availability of direct flights, you'll find numerous flights from London to Sydney with a single stopover along the way and a reasonable travel time. Cathay Pacific is a popular airline for this route and usually offer flights from London Heathrow to Sydney Kingsford Smith with a stopover in Hong Kong en route and a travel time of around 22h 35min. Singapore Airlines offer flights from Heathrow with a single stopover at Singapore Changi Airport and a total flight time of just under 23 hours. Emirates operate flights out of London Gatwick Airport with a stopover at Dubai International Airport and a flight time of just under 22 hours.

Question 20

When did momondo last update prices for flights from London to Sydney Kingsford Smith Airport?

Accepted Answer

Prices for flights from London to Sydney Kingsford Smith Airport were last updated today.

Question 21

How many operators does momondo search for flights from London to Sydney Kingsford Smith Airport?

Accepted Answer

As of December 2025, there are 30 operators available to choose from for flights from London to Sydney Kingsford Smith Airport.

Question 22

How old do you have to be to fly from London to Sydney Kingsford Smith Airport?

Accepted Answer

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.

Question 23

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

Accepted Answer

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.

Best price found	£985
Fastest flight time	21h 25m
Direct flights	Every day
Airports in Sydney	1 airport

Airline	Rating	Free Cancellation	Price
Hainan Airlines	PriceFrom £338	Free Cancellation	Rating 8.3 58 reviews	Search Hainan Airlines flights
Air China	PriceFrom £488	Free Cancellation	Rating 7.2 127 reviews	Search Air China flights
Turkish Airlines	PriceFrom £696	Free Cancellation	Rating 7.3 4,077 reviews	Search Turkish Airlines flights
China Airlines	PriceFrom £737	Free Cancellation	Rating 8.3 787 reviews	Search China Airlines flights
SWISS	PriceFrom £743	Free Cancellation	Rating 7.5 1,804 reviews	Search SWISS flights
Austrian Airlines	PriceFrom £747	Free Cancellation	Rating 7.6 875 reviews	Search Austrian Airlines flights
Air New Zealand	PriceFrom £756	Free Cancellation	Rating 8.0 544 reviews	Search Air New Zealand flights
Vietnam Airlines	PriceFrom £806	Free Cancellation	Rating 7.6 215 reviews	Search Vietnam Airlines flights
Qatar Airways	PriceFrom £824	Free Cancellation	Rating 7.4 3,678 reviews	Search Qatar Airways flights
Lufthansa	PriceFrom £832	Free Cancellation	Rating 6.8 7,612 reviews	Search Lufthansa flights

Cheap flights from London to Sydney from £475

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 18/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London to Sydney

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Etihad Airways flights from London to Sydney

Our best Etihad Airways deals on London to Sydney flight tickets

China Eastern flights from London to Sydney

Our best China Eastern deals on London to Sydney flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from London to Sydney that are best for you.

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?

What is the cheapest day to depart on your flight to Sydney?

What is the cheapest time of day to depart on your flight to Sydney?

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?

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.

How have London to Sydney flight prices changed over time?

As of December 2025, prices for London to Sydney flights are approximately 16% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from London to Sydney Kingsford Smith?

Etihad Airways, Air India, and SWISS are the most popular carriers operating from London to Sydney Kingsford Smith

Which airlines fly to Sydney?

Which airport is the most popular for stopovers for flights between London and Sydney?

Abu Dhabi (AUH) was the most common stop: 15% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London to Sydney?

Flights via Chongqing (CKG) offer the lowest average return price of £656.

Which stopover airport has the shortest travel time from London to Sydney?

Flights connecting via Dubai (DXB) have the shortest average one-way travel time: 22h 21m.

Which stopover airport has the shortest connection time from London to Sydney?

Dubai (DXB) has the shortest average stopover time for this route: 1h 51m.

How many flights depart from London to Sydney on average per day?

3 flights are operational daily from London to Sydney as of December 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 December 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

Best price found

Fastest flight time

Direct flights

Airports in Sydney

How far is London to Sydney Kingsford Smith by plane?

When did momondo last update prices for flights from London to Sydney Kingsford Smith Airport?

How many operators does momondo search 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?

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

What is the most popular plane model from London to Sydney?

What is the most popular airline from London to Sydney?

Best airlines flying from London to Sydney

Compare and see reviews for airlines that fly from London to Sydney with momondo

Travelling to a place near Sydney?

Why use momondo?

Why should I use momondo to find a flight deal from London to Sydney?

Can I find flights from London to Sydney with flexible booking policies on momondo?

How can momondo help me find flights from London to Sydney?

I’m not ready to book a flight from London to Sydney right now. Can momondo alert me if prices change?

An easier way to manage your Sydney trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing New South Wales