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Cheap flights from London to Sydney from £444

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
9 Jul — 16 Jul1
1 adult

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 Monday or Tuesday and return on a Wednesday

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 4 July 2025.

Round-trip from

£704

One-way from

£444

Popular in

December

Cheapest in

May

Average price

£1,200

Good round-trip deal

£1,010 or less

Good one-way deal

£1,016 or less
China Eastern
  • China Eastern
  • 2/9-10/9
  • 3 total stops
  • 56h 10m total
  • London to Sydney
16/9
  • 16/9
  • 2 total stops
  • 51h 20m total
  • London to Sydney
Highest demand for flights based on searches. 9% potential increase in price (£76 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£23 potential savings vs. average return price).
Average for round-trip flights in July 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 4 July 2025.

Tue 2/918:00LGW - SYD
2 stops28h 40mChina Eastern
Wed 10/920:30SYD - LGW
1 stop27h 30mChina Eastern
Deal found 2/7£704
Mon 4/809:45LHR - SYD
1 stop23h 55mAir India
Mon 11/820:10SYD - LHR
1 stop24h 20mAir India
Deal found 2/7£706
Mon 10/1110:30LGW - SYD
1 stop36h 30mMultiple Airlines
Mon 17/1106:00SYD - LGW
2 stops35h 30mMultiple Airlines
Deal found 3/7£709
Mon 27/1021:00LHR - SYD
1 stop29h 35mChina Eastern
Mon 10/1121:30SYD - LHR
1 stop31h 00mChina Eastern
Deal found 2/7£711
Thu 25/1221:30LHR - SYD
2 stops35h 50mChina Southern
Thu 22/122:00SYD - LHR
2 stops30h 55mChina Southern
Deal found 4/7£712
Wed 1/1022:00LHR - SYD
2 stops36h 30mMultiple Airlines
Wed 8/1021:45SYD - LHR
3 stops55h 45mMultiple Airlines
Deal found 3/7£719
Sat 13/921:30LGW - SYD
2 stops36h 55mChina Southern
Sun 2/1122:00SYD - LGW
2 stops54h 20mChina Southern
Deal found 3/7£733
Tue 28/1017:40LHR - SYD
1 stop34h 50mAir China
Tue 25/1120:40SYD - LHR
1 stop32h 10mAir China
Deal found 2/7£742
Sun 26/1011:40LGW - SYD
2 stops40h 50mAir China
Thu 27/1120:40SYD - LGW
2 stops45h 15mAir China
Deal found 3/7£784
Fri 21/1107:30STN - SYD
3 stops38h 45mMultiple Airlines
Fri 28/1120:20SYD - STN
2 stops27h 50mMultiple Airlines
Deal found 3/7£788
Sat 4/1006:05LTN - SYD
2 stops26h 55mMultiple Airlines
Sun 19/1013:50SYD - LTN
2 stops34h 50mMultiple Airlines
Deal found 3/7£799
Tue 18/1119:10LCY - SYD
2 stops29h 40mSWISS
Sun 8/216:10SYD - LCY
2 stops35h 55mSWISS
Deal found 1/7£811

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 4 July 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

Tue 2/9

18:00-07:40

2 stops28h 40m

Sydney Kingsford Smith

Wed 10/9

20:30-15:00

1 stop27h 30m

£704

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 4/8

09:45-18:40

1 stop23h 55m

Sydney Kingsford Smith

Mon 11/8

20:10-11:30

1 stop24h 20m

£706

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Mon 10/11

10:30-10:00

1 stop36h 30m

Sydney Kingsford Smith

Mon 17/11

06:00-06:30

2 stops35h 30m

£709

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 27/10

21:00-13:35

1 stop29h 35m

Sydney Kingsford Smith

Mon 10/11

21:30-17:30

1 stop31h 00m

£711

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 25/12

21:30-20:20

2 stops35h 50m

Sydney Kingsford Smith

Thu 22/1

22:00-17:55

2 stops30h 55m

£712

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 1/10

22:00-19:30

2 stops36h 30m

Sydney Kingsford Smith

Wed 8/10

21:45-19:30

3 stops55h 45m

£719

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sat 13/9

21:30-19:25

2 stops36h 55m

Sydney Kingsford Smith

Sun 2/11

22:00-17:20

2 stops54h 20m

£733

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 28/10

17:40-15:30

1 stop34h 50m

Sydney Kingsford Smith

Tue 25/11

20:40-17:50

1 stop32h 10m

£742

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sun 26/10

11:40-15:30

2 stops40h 50m

Sydney Kingsford Smith

Thu 27/11

20:40-06:55

2 stops45h 15m

£784

LondonSydney

STN - SYD

STNSYD

London Stansted

Fri 21/11

07:30-09:15

3 stops38h 45m

Sydney Kingsford Smith

Fri 28/11

20:20-13:10

2 stops27h 50m

£788

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 30 results
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2
3

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 27 June 2025.

The best time to book flights from London to Sydney is 36 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 £1,708). 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 4 July 2025.

It’s optimal to fly from London to Sydney in the afternoon. By choosing this option you can save up to 27% 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 4 July 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).

How much does it cost for a return flight from London to Sydney?

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 4 July 2025.
Check out reviews from past customers who have flown with Emirates, China Southern, andSWISS from London to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.1

Food

7.8

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

Overall

8.1

Food

7.8

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

Overall

8.1

Food

7.8

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

Overall

8.1

Food

7.8

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

Overall

8.1

Food

7.8

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

Overall

8.1

Food

7.8

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Hemshika,Jun 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

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 £704. Additional return tickets that might be worth considering are offered by Air India and China Southern, with the lowest prices starting at £706 and £712, respectively. China Eastern is 25% 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 Beijing Capital Airlines (£446), China Eastern (£446), and Air China (£450).

  • 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 £808. On average you can expect to pay £4,133. The most popular route, (London Heathrow - Sydney Kingsford Smith), can usually be booked for £648.

  • 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 Shanghai?

    If you're on a stopover in Shanghai and looking for things to do, consider visiting Shanghai Disneyland, Shanghai Grand Theatre, or French Concession. Shanghai Disneyland, Shanghai Grand Theatre, and French Concession are located about 8.7 mi, 20.6 mi, and 20.4 mi, respectively from Shanghai Pu Dong.

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

    Sentosa, Merlion, and Universal Studios Singapore are the most popular attractions in Singapore if you're in need of something to do during your stopover. Sentosa, Merlion and Universal Studios Singapore are located about 13.4 mi, 10.5 mi, and 13.4 mi, respectively from Singapore Changi if you are interested in checking them out. Those looking to explore during their stopover in Singapore can hire a car from Singapore Changi for about £99 per day.

  • 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 £1,708). 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 4 July 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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£330Average£1,309FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Turkish AirlinesCheapest£684Average£941FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
SWISSCheapest£773Average£948FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Austrian AirlinesCheapest£774Average£839FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Vietnam AirlinesCheapest£788Average£1,039FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
LufthansaCheapest£821Average£1,033FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SriLankan AirlinesCheapest£824Average£876FlexibilityNo cancel feeOn-time68%
Search SriLankan Airlines flights
Air FranceCheapest£832Average£1,186FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£900Average£1,005FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Japan AirlinesCheapest£916Average£1,204FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights

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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.

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