What are the cheapest airlines flying from London to Sydney round-trip?

Currently priced at $1,010, China Southern will fly you from London to Sydney and back. In addition to China Southern, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air China and China Eastern - these airlines can fly you to your destination from $1,013 and $1,058, respectively. These flights start at 22% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from London to Sydney one-way?

The cheapest airline one-way is Air China, with whom users have recently found tickets for as low as $622. However, be on the lookout for offers from Beijing Capital Airlines and China Eastern, as they are both options that can get you from London to Sydney for a low price.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

What are the most popular airlines that fly from London to Sydney?

Consider British Airways, Air China or Cathay Pacific when booking your flight. These represent the most popular airlines when flying from London to Sydney.

What is the cheapest day to fly round-trip from London to Sydney?

Users have found that flying from London to Sydney on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

Travelers have found it’s best to book a flight 37 days in advance to save up to 13% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 37 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London to Sydney 1-2 weeks in advance for as low as $1,279, or $1,566 for flights within the next 24 hours.

What is the cheapest month to fly from London to Sydney?

Our data shows that May tends to be the cheapest month to fly to Sydney from London. Users have commonly found prices around $1,296 for the month, but tickets can be as low as $714. Due to multiple factors, prepare for potentially higher prices in December.

What airport do you fly into for flights to Sydney from London?

Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from London. On average, Kingsford Smith has 3 inbound flights from London per day from 9 airlines. Sydney Kingsford Smith is conveniently located just 4.6 mi from Sydney’s city center.

Can I find deals for flights from London to Sydney that include hotel bookings?

Yes. In addition to deals on London to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from London to Sydney?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Sydney.

Can I find deals for business class flights from London to Sydney?

Yes. Cheapflights offers flight deals from London to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$613+ Flights from London to Sydney

Q: How much does it cost to fly round-trip from London to Sydney?

Airfare is below average for this route at the moment. London to Sydney flights typically cost between $1,202 and $1,733 in November. The cheapest round-trip price found within the last 3 days was $1,013 on Air China (Nov 21-Jan 14).

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from London to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from London to Sydney Kingsford Smith are usually found in May or March, booked 36 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap flight deals from London to Sydney

Round-trip from	$1,010 (China Southern)
One-way from	$613 (Mytrip)
Popular in	December
Cheapest in	May
Average price	$1,670

From London (LON) to Sydney Kingsford Smith

Search Deals

One-way flight from London (LON) to Sydney Kingsford Smith

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($136 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($41 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from London to Sydney

Cheapest flights from London to Sydney
Explore the most affordable flight options available from London to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Fri 11/215:40 pmLHR - SYD

1 stop34h 50mAir China

Wed 1/148:40 pmSYD - LHR

1 stop30h 15mAir China

Deal found 7/29

$1,013

Tue 10/219:00 pmLHR - SYD

2 stops37h 25mChina Southern

Sat 11/229:20 amSYD - LHR

2 stops39h 40mChina Southern

Deal found 7/30

$1,014

Fri 9/1210:00 pmLHR - SYD

3 stops39h 20mMultiple Airlines

Sat 9/209:20 pmSYD - LHR

3 stops55h 10mMultiple Airlines

Deal found 7/28

$1,053

Mon 10/136:05 pmLGW - SYD

1 stop29h 55mChina Eastern

Mon 10/2012:00 pmSYD - LGW

1 stop28h 30mChina Eastern

Deal found 7/30

$1,058

Sat 9/139:30 pmLGW - SYD

2 stops36h 55mChina Southern

Sun 9/2110:15 amSYD - LGW

1 stop29h 35mChina Southern

Deal found 7/28

$1,081

Mon 11/36:00 amLHR - SYD

2 stops42h 50mSWISS

Wed 11/193:15 pmSYD - LHR

2 stops32h 45mSWISS

Deal found 7/29

$1,089

Mon 11/109:00 pmLHR - SYD

1 stop26h 00mChina Eastern

Sat 11/2212:00 pmSYD - LHR

1 stop40h 30mChina Eastern

Deal found 7/30

$1,100

Wed 11/56:40 pmLGW - SYD

2 stops30h 10mSWISS

Wed 11/193:15 pmSYD - LGW

2 stops37h 35mSWISS

Deal found 7/28

$1,117

Wed 8/1311:35 amLGW - SYD

1 stop40h 00mMultiple Airlines

Tue 10/1410:15 pmSYD - LGW

1 stop42h 50mMultiple Airlines

Deal found 7/28

$1,125

Sat 10/2510:15 pmLHR - SYD

1 stop27h 45mCathay Pacific

Mon 11/1010:20 pmSYD - LHR

1 stop32h 50mCathay Pacific

Deal found 7/30

$1,129

Mon 12/83:30 pmLHR - SYD

2 stops28h 45mLufthansa

Thu 2/124:10 pmSYD - LHR

2 stops31h 40mLufthansa

Deal found 7/29

$1,132

Tue 9/27:50 pmLHR - SYD

1 stop27h 25mVietnam Airlines

Mon 9/1510:15 amSYD - LHR

1 stop40h 35mVietnam Airlines

Deal found 7/30

$1,137

Best flights from London to Sydney
Discover carefully curated flight deals from London to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2025.

Fri 11/215:40 pmLHR - SYD

1 stop34h 50mAir China

Wed 1/148:40 pmSYD - LHR

1 stop30h 15mAir China

Deal found 7/29

$1,013

Tue 10/219:00 pmLHR - SYD

2 stops37h 25mChina Southern

Sat 11/229:20 amSYD - LHR

2 stops39h 40mChina Southern

Deal found 7/30

$1,014

Fri 9/1210:00 pmLHR - SYD

3 stops39h 20mMultiple Airlines

Sat 9/209:20 pmSYD - LHR

3 stops55h 10mMultiple Airlines

Deal found 7/28

$1,053

Mon 10/136:05 pmLGW - SYD

1 stop29h 55mChina Eastern

Mon 10/2012:00 pmSYD - LGW

1 stop28h 30mChina Eastern

Deal found 7/30

$1,058

Mon 11/36:00 amLHR - SYD

2 stops42h 50mSWISS

Wed 11/193:15 pmSYD - LHR

2 stops32h 45mSWISS

Deal found 7/29

$1,089

Sat 10/2510:15 pmLHR - SYD

1 stop27h 45mCathay Pacific

Mon 11/1010:20 pmSYD - LHR

1 stop32h 50mCathay Pacific

Deal found 7/30

$1,129

Mon 12/83:30 pmLHR - SYD

2 stops28h 45mLufthansa

Thu 2/124:10 pmSYD - LHR

2 stops31h 40mLufthansa

Deal found 7/29

$1,132

Tue 9/27:50 pmLHR - SYD

1 stop27h 25mVietnam Airlines

Mon 9/1510:15 amSYD - LHR

1 stop40h 35mVietnam Airlines

Deal found 7/30

$1,137

Wed 10/299:15 pmLHR - SYD

1 stop28h 00mChina Airlines

Tue 12/210:10 pmSYD - LHR

1 stop29h 45mChina Airlines

Deal found 7/29

$1,157

Sat 9/139:30 pmLGW - SYD

2 stops36h 55mChina Southern

Sun 9/2110:15 amSYD - LGW

1 stop29h 35mChina Southern

Deal found 7/28

$1,081

Mon 11/109:00 pmLHR - SYD

1 stop26h 00mChina Eastern

Sat 11/2212:00 pmSYD - LHR

1 stop40h 30mChina Eastern

Deal found 7/30

$1,100

Wed 11/56:40 pmLGW - SYD

2 stops30h 10mSWISS

Mon 11/173:15 pmSYD - LGW

2 stops37h 35mSWISS

Deal found 7/28

$1,117

Last-minute flights from London to Sydney
Discover last-minute flight deals from London to Sydney. Data last updated July 30, 2025 and is based on user searches.

Mon 8/49:30 amLHR - SYD

2 stops59h 55mFinnair

Sun 8/1010:20 amSYD - LHR

2 stops31h 50mFinnair

Deal found 7/29

$2,033

Mon 8/48:50 pmLHR - SYD

2 stops52h 30mOman Air

Mon 8/112:50 pmSYD - LHR

2 stops61h 20mOman Air

Deal found 7/30

$2,117

Wed 8/61:05 pmLHR - SYD

1 stop32h 55mUnited Airlines

Wed 9/39:30 amSYD - LHR

2 stops30h 55mUnited Airlines

Deal found 7/30

$1,651

Wed 8/66:55 pmLHR - SYD

2 stops52h 20mVietnam Airlines

Sat 8/910:15 amSYD - LHR

2 stops63h 50mVietnam Airlines

Deal found 7/29

$2,045

Thu 8/76:00 pmLGW - SYD

2 stops28h 40mChina Eastern

Fri 8/2912:00 pmSYD - LGW

2 stops36h 00mChina Eastern

Deal found 7/29

$1,526

Thu 8/710:10 pmLHR - SYD

1 stop36h 15mChina Southern

Fri 8/2910:15 amSYD - LHR

1 stop41h 45mChina Southern

Deal found 7/30

$1,560

Thu 8/79:20 pmLHR - SYD

1 stop26h 40mChina Eastern

Fri 8/298:30 pmSYD - LHR

1 stop31h 10mChina Eastern

Deal found 7/29

$1,666

Thu 8/79:45 pmLHR - SYD

2 stops36h 45mMultiple Airlines

Fri 8/299:30 pmSYD - LHR

1 stop30h 15mMultiple Airlines

Deal found 7/30

$1,835

Thu 8/76:30 amLHR - SYD

2 stops27h 30mTurkish Airlines

Fri 8/298:55 pmSYD - LHR

2 stops34h 30mTurkish Airlines

Deal found 7/30

$1,916

Thu 8/74:30 pmLHR - SYD

2 stops28h 40mLufthansa

Mon 8/112:05 pmSYD - LHR

2 stops28h 35mLufthansa

Deal found 7/29

$1,956

Thu 8/76:00 pmLGW - SYD

2 stops35h 15mMultiple Airlines

Fri 8/2912:00 pmSYD - LGW

2 stops36h 00mMultiple Airlines

Deal found 7/30

$1,989

Thu 8/712:00 pmLGW - SYD

1 stop22h 25mChina Southern

Fri 8/299:45 pmSYD - LGW

2 stops29h 45mChina Southern

Deal found 7/30

$2,113

One-way flights from London to Sydney
Search for one-way flight options from London to Sydney. Find affordable one-way fares based on user searches. Data last updated July 30, 2025.

Thu 8/284:40 pmLGW - SYD

2 stops31h 40mMultiple Airlines

Deal found 7/29

$613

Fri 12/511:40 amLGW - SYD

2 stops40h 50mAir China

Deal found 7/30

$622

Fri 12/59:10 pmLHR - SYD

2 stops51h 20mMultiple Airlines

Deal found 7/30

$624

Sat 9/204:45 pmLGW - SYD

1 stop30h 50mBeijing Capital Airlines

Deal found 7/29

$631

Mon 11/39:00 pmLHR - SYD

1 stop29h 35mChina Eastern

Deal found 7/30

$636

Sat 8/3010:00 pmLHR - SYD

1 stop31h 40mTianjin Airlines

Deal found 7/29

$646

Thu 8/2811:35 amLGW - SYD

1 stop36h 25mChina Eastern

Deal found 7/29

$655

Wed 9/1711:00 amLHR - SYD

1 stop23h 35mMalaysia Airlines

Deal found 7/29

$690

Tue 10/149:30 pmLGW - SYD

2 stops36h 55mChina Southern

Deal found 7/29

$698

Tue 10/216:30 amLHR - SYD

2 stops43h 15mChina Airlines

Deal found 7/30

$700

Sun 9/289:30 pmLHR - SYD

1 stop32h 25mSriLankan Airlines

Deal found 7/29

$706

Wed 8/208:35 pmLHR - SYD

1 stop37h 05mAir India

Deal found 7/29

$708

Fly from

Fly to

Route

Depart

Return

Price

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 11/21

5:40 pm-3:30 pm

1 stop34h 50m

Sydney Kingsford Smith

Wed 1/14

8:40 pm-3:55 pm

1 stop30h 15m

$1,013

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 10/21

9:00 pm-8:25 pm

2 stops37h 25m

Sydney Kingsford Smith

Sat 11/22

9:20 am-2:00 pm

2 stops39h 40m

$1,014

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 9/12

10:00 pm-10:20 pm

3 stops39h 20m

Sydney Kingsford Smith

Sat 9/20

9:20 pm-7:30 pm

3 stops55h 10m

$1,053

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Mon 10/13

6:05 pm-10:00 am

1 stop29h 55m

Sydney Kingsford Smith

Mon 10/20

12:00 pm-6:30 am

1 stop28h 30m

$1,058

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sat 9/13

9:30 pm-7:25 pm

2 stops36h 55m

Sydney Kingsford Smith

Sun 9/21

10:15 am-6:50 am

1 stop29h 35m

$1,081

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 11/3

6:00 am-11:50 am

2 stops42h 50m

Sydney Kingsford Smith

Wed 11/19

3:15 pm-1:00 pm

2 stops32h 45m

$1,089

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 11/10

9:00 pm-10:00 am

1 stop26h 00m

Sydney Kingsford Smith

Sat 11/22

12:00 pm-5:30 pm

1 stop40h 30m

$1,100

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Wed 11/5

6:40 pm-11:50 am

2 stops30h 10m

Sydney Kingsford Smith

Mon 11/17

3:15 pm-5:50 pm

2 stops37h 35m

$1,117

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Wed 8/13

11:35 am-12:35 pm

1 stop40h 00m

Sydney Kingsford Smith

Tue 10/14

10:15 pm-7:05 am

1 stop42h 50m

$1,125

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 10/25

10:15 pm-12:00 pm

1 stop27h 45m

Sydney Kingsford Smith

Mon 11/10

10:20 pm-8:10 pm

1 stop32h 50m

$1,129

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 28 results

Best time to book a flight from London to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from London with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Sydney

How far ahead should I book a flight from London to Sydney?

Booking 36 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London to Sydney?

Currently, February is the cheapest month in which you can book a flight from London to Sydney (average of $1,028). Flying from London to Sydney in December is currently the most expensive (average of $1,619). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to SYD?

A simple way to save on the total cost of your ticket is to fly from London to Sydney in the afternoon. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from London to Sydney?

Travelers seeking maximum savings on their London to Sydney flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Sydney

The most flights from LON to SYD are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost to fly round-trip from London to Sydney?

What’s the top layover airport for flights from London to Sydney?

Abu Dhabi (AUH) – chosen by Cheapflights users on 21% of 1-stop itineraries from London to Sydney on Cheapflights.

What’s the cheapest layover airport for flights from London to Sydney?

Beijing (PEK) is the most affordable 1-stop option, with an average round-trip price of $751.

What’s the fastest layover option from London to Sydney?

Flights via Kuala Lumpur (KUL) have the shortest average one-way travel time for 1-stop routes: 10h 20m.

Which airport typically offers the quickest layover for flights from London to Sydney?

Flights via Dubai (DXB) offer the fastest connection on this route, with an average layover time of 1h 43m.

Reviews of airlines servicing Sydney

Read through reviews of airlines operating flights from London to Sydney, such as China Airlines, Cathay Pacific, and China Southern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

China Airlines

8.3

Very good

754 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

China Airlines

8.3

Very good

754 reviews

China Airlines

8.3

Very good

754 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

SFO - TPE

Cathay Pacific

7.6

Good

949 reviews

China Airlines

8.3

Very good

754 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

SFO - TPE

China Southern

7.6

Good

104 reviews

China Airlines

8.3

Very good

754 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

SFO - TPE

SWISS

7.5

Good

1,686 reviews

China Airlines

8.3

Very good

754 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

SFO - TPE

Vietnam Airlines

7.5

Good

196 reviews

China Airlines

8.3

Very good

754 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

SFO - TPE

Related info for your journey

What airport do you fly into for flights to Sydney from London?
Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from London. On average, Kingsford Smith has 3 inbound flights from London per day from 9 airlines. Sydney Kingsford Smith is conveniently located just 4.6 mi from Sydney’s city center.
What are the cheapest airlines flying from London to Sydney round-trip?
Currently priced at $1,010, China Southern will fly you from London to Sydney and back. In addition to China Southern, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air China and China Eastern - these airlines can fly you to your destination from $1,013 and $1,058, respectively. These flights start at 22% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from London to Sydney one-way?
The cheapest airline one-way is Air China, with whom users have recently found tickets for as low as $622. However, be on the lookout for offers from Beijing Capital Airlines and China Eastern, as they are both options that can get you from London to Sydney for a low price.
Can I find deals for flights from London to Sydney that include hotel bookings?
Yes. In addition to deals on London to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from London to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Sydney.
Can I find deals for business class flights from London to Sydney?
Yes. Cheapflights offers flight deals from London to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Sydney?
Currently, February is the cheapest month in which you can book a flight from London to Sydney (average of $1,028). Flying from London to Sydney in December is currently the most expensive (average of $1,619). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Wollongong

Parramatta

Manly

Coogee

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for London to Sydney

Heathrow to Sydney flights

Gatwick to Sydney flights

Complete your trip

Sydney car rentals

Sydney Kingsford Smith Airport car rentals

Newcastle Williamtown Airport car rentals

Port Macquarie car rentals

Orange car rentals

Sydney CBD car rentals

Elizabeth Bay car rentals

Potts Point car rentals

Waterloo car rentals

Surry Hills car rentals

The Rocks car rentals

Millers Point car rentals

Other flights to Sydney

Top 9 airlines flying from London to Sydney

Airline	Cheapest	Average	Flexibility	On-time
Air China	Cheapest$747	Average$951	FlexibilityNo cancel fee	On-time67%
China Southern	Cheapest$766	Average$946	FlexibilityNo cancel fee	On-time69%
China Eastern	Cheapest$866	Average$1,220	FlexibilityNo cancel fee	On-time62%
Etihad Airways	Cheapest$1,029	Average$1,532	FlexibilityNo cancel fee	On-time75%
Cathay Pacific	Cheapest$1,115	Average$1,544	FlexibilityNo cancel fee	On-time72%
Qantas Airways	Cheapest$1,120	Average$1,438	FlexibilityNo cancel fee	On-time74%
Malaysia Airlines	Cheapest$1,188	Average$1,527	FlexibilityNo cancel fee	On-time67%
Singapore Airlines	Cheapest$1,307	Average$1,677	FlexibilityNo cancel fee	On-time81%
British Airways	Cheapest$1,326	Average$1,490	FlexibilityNo cancel fee	On-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$613+ Cheap flights from London (LON) to Sydney (SYD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from London to Sydney with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from London to Sydney Kingsford Smith are usually found in May or March, booked 36 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap flight deals from London to Sydney

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from London to Sydney

Cheapest flights from London to SydneyExplore the most affordable flight options available from London to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Explore the most affordable flight options available from London to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from London to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London to Sydney

How far ahead should I book a flight from London to Sydney?

Use this chart to determine the optimal time to book a round-trip flight from London to Sydney. Price data was last updated on July 25, 2025.

What is the cheapest month to book a flight from London to Sydney?

What is the cheapest time of day to fly from LON to SYD?

Find hourly flight availability from London to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

What is the cheapest day to fly from London to Sydney?

Use this chart to determine the cheapest time to fly round-trip from London to Sydney. Price data was last updated on December 16, 2024.

Weekly flight availability from London to Sydney

Explore weekly flight availability from London to Sydney. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 30, 2025.

How much does it cost to fly round-trip from London to Sydney?

What’s the top layover airport for flights from London to Sydney?

Share of 1-stop round-trip flights from London to Sydney chosen by Cheapflights users in the past 12 months, using the same layover each way.

What’s the cheapest layover airport for flights from London to Sydney?

Average round-trip fare for 1-stop flights from London to Sydney, chosen by Cheapflights users in the past 12 months, with the same layover each way.

What’s the fastest layover option from London to Sydney?

Shortest average travel time for 1-stop one-way flights from London to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Which airport typically offers the quickest layover for flights from London to Sydney?

Average layover duration for 1-stop one-way flights from London to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated July 30, 2025.

Read through reviews of airlines operating flights from London to Sydney, such as China Airlines, Cathay Pacific, and China Southern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Sydney from London?

What are the cheapest airlines flying from London to Sydney round-trip?

What are the cheapest airlines to fly from London to Sydney one-way?

Can I find deals for flights from London to Sydney that include hotel bookings?

How can I find direct flights from London to Sydney?

Can I find deals for business class flights from London to Sydney?

What is the cheapest month to book a flight from London to Sydney?

Traveling to a place near Sydney?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from London to Sydney

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from London to Sydney
Explore the most affordable flight options available from London to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.