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Cheap flights from London to Sydney from £406

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
27 Mar — 3 Apr1
1 adult

Cheapflights Tip: The best prices from London to Sydney Kingsford Smith are usually found in May or March, booked 52 days in advance, depart on a Monday or Tuesday and return on a Sunday

Cheap flight deals from London to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 March 2025.

Round-trip from

£680

One-way from

£406

Popular in

December

Cheapest in

May

Average price

£840

Good round-trip deal

£1,094 or less

Good one-way deal

£835 or less
China Eastern
  • China Eastern
  • 10/5-5/6
  • 3 total stops
  • 65h 50m total
  • London to Sydney
1/5
  • 1/5
  • 2 total stops
  • 51h 20m total
  • London to Sydney
Highest demand for flights based on searches. 9% potential increase in price (£85 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£25 potential savings vs. average return price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from London (LON) to Sydney Kingsford Smith.
Price to beat on a one-way flight from London (LON) to Sydney Kingsford Smith.

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 22 March 2025.

Sat 10/518:00LGW - SYD
2 stops28h 40mChina Eastern
Thu 5/611:00SYD - LGW
1 stop37h 10mChina Eastern
Deal found 21/3£680
Mon 5/521:20LHR - SYD
1 stop30h 15mChina Eastern
Mon 26/511:20SYD - LHR
2 stops40h 20mChina Eastern
Deal found 21/3£681
Sat 10/522:10LHR - SYD
1 stop36h 30mChina Southern
Sat 31/508:45SYD - LHR
2 stops40h 30mChina Southern
Deal found 21/3£683
Thu 5/612:35LGW - SYD
1 stop41h 15mAir China
Thu 19/619:40SYD - LGW
1 stop43h 55mAir China
Deal found 21/3£699
Mon 12/511:35LGW - SYD
1 stop36h 25mMultiple Airlines
Thu 22/506:00SYD - LGW
2 stops33h 40mMultiple Airlines
Deal found 21/3£705
Thu 5/622:40LHR - SYD
1 stop31h 10mAir China
Thu 19/619:40SYD - LHR
1 stop33h 50mAir China
Deal found 21/3£734
Tue 1/705:20LGW - SYD
1 stop28h 40mTurkish Airlines
Tue 8/720:55SYD - LGW
1 stop28h 20mTurkish Airlines
Deal found 21/3£751
Fri 12/912:25LGW - SYD
1 stop35h 00mChina Southern
Sat 4/1021:45SYD - LGW
1 stop42h 05mChina Southern
Deal found 21/3£758
Sat 10/507:10LTN - SYD
2 stops51h 20mMultiple Airlines
Sat 17/512:50SYD - LTN
2 stops36h 15mMultiple Airlines
Deal found 21/3£762
Mon 2/622:00LHR - SYD
2 stops55h 15mHainan Airlines
Tue 24/621:00SYD - LHR
1 stop31h 30mHainan Airlines
Deal found 21/3£767
Wed 26/319:55LHR - SYD
1 stop36h 10mTurkish Airlines
Fri 23/520:55SYD - LHR
1 stop27h 10mTurkish Airlines
Deal found 21/3£777
Sun 11/520:55LHR - SYD
2 stops26h 00mEtihad Airways
Mon 26/521:30SYD - LHR
1 stop42h 30mEtihad Airways
Deal found 21/3£787

Cheapflights Fare Finder

Customise your flight search to find flights from London to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 March 2025.
Use the filters below to find and compare flights from London to Sydney that are best for you.

Fly from

London

Fly to

Sydney

Route

Depart

Return

Price

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sat 10/5

18:00-07:40

2 stops28h 40m

Sydney Kingsford Smith

Thu 5/6

11:00-15:10

1 stop37h 10m

£680

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 5/5

21:20-12:35

1 stop30h 15m

Sydney Kingsford Smith

Mon 26/5

11:20-18:40

2 stops40h 20m

£681

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 10/5

22:10-19:40

1 stop36h 30m

Sydney Kingsford Smith

Sat 31/5

08:45-16:15

2 stops40h 30m

£683

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 6/5

11:35-16:25

2 stops43h 50m

Sydney Kingsford Smith

Mon 12/5

11:00-06:40

1 stop28h 40m

£692

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Thu 5/6

12:35-14:50

1 stop41h 15m

Sydney Kingsford Smith

Thu 19/6

19:40-06:35

1 stop43h 55m

£699

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 5/6

22:40-14:50

1 stop31h 10m

Sydney Kingsford Smith

Thu 19/6

19:40-20:30

1 stop33h 50m

£734

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 1/7

05:20-19:00

1 stop28h 40m

Sydney Kingsford Smith

Tue 8/7

20:55-16:15

1 stop28h 20m

£751

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Fri 12/9

12:25-08:25

1 stop35h 00m

Sydney Kingsford Smith

Sat 4/10

21:45-06:50

1 stop42h 05m

£758

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sat 10/5

07:10-19:30

2 stops51h 20m

Sydney Kingsford Smith

Sat 17/5

12:50-16:05

2 stops36h 15m

£762

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 2/6

22:00-14:15

2 stops55h 15m

Sydney Kingsford Smith

Tue 24/6

21:00-19:30

1 stop31h 30m

£767

Flights are sorted by cheapest return flights first.

Deals found on 20/3

Showing 1-10 of 49 results
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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 return 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?

Use this chart to determine the optimal time to book a return flight from London to Sydney. Price data was last updated on 14 March 2025.

The best time to book flights from London to Sydney is 52 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, May is the cheapest month in which you can book a flight from London to Sydney (average of £985). Flying from London to Sydney in July is currently the most expensive (average of £1,728). 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?

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 22 March 2025.

It’s optimal to fly from London to Sydney in the afternoon. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight in the evening.

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

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

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

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 22 March 2025.

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).

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

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 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

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 22 March 2025.
See what other customers who have flown with China Airlines, Singapore Airlines and Emirates from London to Sydney have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.2

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

Overall

8.2

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

Overall

8.2

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

Overall

8.2

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

Overall

8.2

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

Overall

8.2

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

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?

    For a flight from London to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 4.6 mi from the center of the city. Kingsford Smith is the only Sydney airport and it handles 3 inbound flights from London per day. 30 airlines have flights to Sydney Kingsford Smith from London on a regular basis.

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

    Flying on China Eastern is currently your cheapest option to Sydney, with prices starting at £680. Additional return tickets that might be worth considering are offered by China Southern and Air China, with the lowest prices starting at £683 and £699, respectively. China Eastern is 32% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapet airlines for a one-way flight from London to Sydney are Air China (£407), Tianjin Airlines (£417), and Singapore Airlines (£428).

  • What are the most popular routes from London to Sydney?

  • What are the cheapest flights from London to Sydney?

    The cheapest flight price from London to Sydney is £694. On average you can expect to pay £3,631. The most popular route, (London Heathrow - Sydney Kingsford Smith), can usually be booked for £529.

  • Where are the most common stopover locations when flying from London to Sydney?

  • What are some popular things to do or see while on a stopover in Singapore?

    If you're on a stopover in Singapore and looking for things to do, consider visiting Sentosa, Universal Studios Singapore, or Merlion. Sentosa, Universal Studios Singapore, and Merlion are located about 13.4 mi, 13.4 mi, and 10.5 mi, respectively from Singapore Changi. Travellers can book a car hire at Singapore Changi for about £97 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a stopover in Shanghai?

    People's Square, Shanghai Disneyland, and Shanghai Grand Theatre are the most popular attractions in Shanghai if you're in need of something to do during your stopover. People's Square, Shanghai Disneyland and Shanghai Grand Theatre are located about 20.3 mi, 8.7 mi, and 20.6 mi, respectively from Shanghai Pu Dong if you are interested in checking them out.

  • What are points of interest worth seeing during a stopover in Guangzhou?

    Most Guangzhou visitors opt to spend their time at Baima Clothing Wholesale Market, Yide Lu, and Guangzhou Zoo. Baima Clothing Wholesale Market, Yide Lu, and Guangzhou Zoo are located about 17.3 mi, 19.5 mi, and 17.2 mi, respectively from Guangzhou Baiyun.

  • Where are the least popular stopover locations for London to Sydney flights?

  • 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 holiday 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, May is the cheapest month in which you can book a flight from London to Sydney (average of £985). Flying from London to Sydney in July is currently the most expensive (average of £1,728). 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 are the most eco-friendly airlines from London to Sydney?

    There are a few major airlines that serve the route to Sydney from London; these are Virgin Atlantic, Cathay Pacific, Singapore Airlines, and Etihad Airways. All these companies are extremely cautious and forward-thinking when it comes to sustainability and an eco-friendly atmosphere. Cathay Pacific strives to make every customer’s journey important and embrace their responsibility to serve future generations. They are also strongly committed to social responsibility and go an extra mile to reduce the environmental impacts of their company. Some of their aims are to reduce waste and also consumption of natural resources, to support communities that promote the conservation of natural resources and to ensure their stakeholders’ business decisions are also aligned with environmental, social and economic considerations. Virgin Atlantic also prioritise their commitments when it comes to sustainable travel. They have a goal to be net zero by 2050, they are reducing aircraft weight and have 100 per cent green electricity in their offices.

  • How to fly more sustainably from London to Sydney?

    There are a few things you can do in order to fly more sustainably to Sydney from London. The first and most obvious one would be to fly directly, or with as little layovers as possible. While direct flights are not available on this route, there are many flights with two or three stopovers, and it would be wise to select those with only one stop in order to reduce environmental impact. Other steps you can take is to purchase your food beforehand to reduce food waste, and also bring your own reusable mugs for water and other beverages so you can reduce plastic waste.

See more FAQs

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Fly from London to Sydney on these airlines

Choose from the following airlines for your flight from London to Sydney. Flights are based on user searches made on Cheapflights and were last updated on 22 March 2025.

Top 10 airlines flying from London to Sydney

Discover the top 10 airlines that operate flights from London to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£365Average£1,623FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
SWISSCheapest£648Average£919FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Turkish AirlinesCheapest£718Average£1,039FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
LufthansaCheapest£745Average£949FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Vietnam AirlinesCheapest£794Average£1,169FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Austrian AirlinesCheapest£817Average£896FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Air FranceCheapest£864Average£1,226FlexibilityNo cancel feeOn-time77%
Search Air France flights
Japan AirlinesCheapest£939Average£1,261FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
FinnairCheapest£956Average£1,072FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£972Average£1,092FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Sydney?

When you search for this flight from London to Sydney, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from London to Sydney?

Millions of users choose and trust Cheapflights to book the best flight deals from London to Sydney for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from London to Sydney with no change fees?

Yes! Cheapflights helps users easily find flights from London to Sydney with no change fees.

Can Cheapflights notify me if prices for flights from London to Sydney become cheaper?

Not ready to book yet? You can track prices for flights from London to Sydney on Cheapflights with our Price Alert feature and get notified when better prices are available.

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