Cheap flights from London to Sydney from £475

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
1 Feb — 8 Feb1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Sydney Kingsford Smith are usually found in May or June, booked 57 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from London to Sydney

Enter your travel dates to find the best prices.

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 2 January 2026.

Wed 31/1220:25LHR - SYD
1 stop32h 05mAir China
Wed 14/120:40SYD - LHR
1 stop30h 15mAir China
Deal found 31/12£761
Wed 31/1217:40LHR - SYD
1 stop34h 50mAir China
Fri 16/120:40SYD - LHR
1 stop30h 15mAir China
Deal found 31/12£831
Wed 31/1217:40LHR - SYD
1 stop34h 50mMultiple Airlines
Tue 6/121:00SYD - LHR
1 stop30h 20mMultiple Airlines
Deal found 31/12£1,030
Wed 31/1222:05LHR - SYD
1 stop26h 55mCathay Pacific
Mon 2/315:15SYD - LHR
1 stop37h 05mCathay Pacific
Deal found 31/12£1,043
Wed 31/1222:05LHR - SYD
1 stop26h 55mCathay Pacific
Mon 9/306:05SYD - LHR
2 stops35h 25mCathay Pacific
Deal found 31/12£1,070
Wed 31/1222:05LHR - SYD
1 stop26h 55mMultiple Airlines
Wed 14/115:15SYD - LHR
2 stops32h 25mMultiple Airlines
Deal found 31/12£1,152
Wed 31/1217:50LHR - SYD
1 stop31h 10mCathay Pacific
Tue 6/111:45SYD - LHR
2 stops40h 35mCathay Pacific
Deal found 31/12£1,207
Wed 31/1214:45LHR - SYD
2 stops35h 50mAir France
Fri 16/116:15SYD - LHR
2 stops26h 40mAir France
Deal found 31/12£1,227
Wed 31/1220:15LHR - SYD
1 stop28h 45mMultiple Airlines
Fri 16/115:15SYD - LHR
2 stops30h 20mMultiple Airlines
Deal found 31/12£1,288
Wed 31/1212:25LTN - SYD
2 stops35h 00mMultiple Airlines
Wed 7/121:50SYD - LTN
3 stops34h 55mMultiple Airlines
Deal found 30/12£1,299
Wed 31/1217:15LHR - SYD
3 stops34h 35mMultiple Airlines
Wed 7/121:50SYD - LHR
3 stops34h 35mMultiple Airlines
Deal found 30/12£1,334
Wed 31/1213:35LGW - SYD
2 stops29h 40mMultiple Airlines
Tue 6/121:50SYD - LGW
2 stops35h 45mMultiple Airlines
Deal found 31/12£1,376

Find 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 2 January 2026.

Round-trip from

£758

One-way from

£475

Popular in

December

Cheapest in

May

Average price

£1,014

Good round-trip deal

£1,066 or less

Good one-way deal

£976 or less
Air China
  • Air China
  • 3/2-8/2
  • 3 total stops
  • 72h 45m total
  • London to Sydney
17/3
  • 17/3
  • 3 total stops
  • 40h 05m total
  • London to Sydney
Highest demand for flights based on searches. 9% potential increase in price (£73 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 January 2026
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.

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 2 January 2026.
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

LTN - SYD

LTNSYD

London Luton

Sun 1/3

14:30-18:50

2 stops41h 20m

Sydney Kingsford Smith

Fri 13/3

21:15-23:10

2 stops36h 55m

£790

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 3/3

06:25-19:20

2 stops25h 55m

Sydney Kingsford Smith

Tue 24/3

16:35-09:20

2 stops27h 45m

£832

LondonSydney

LTN - SYD

LTNSYD

London Luton

Mon 23/2

08:40-18:50

2 stops47h 10m

Sydney Kingsford Smith

Wed 11/3

21:15-23:10

2 stops36h 55m

£841

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 6/3

06:30-20:50

2 stops27h 20m

Sydney Kingsford Smith

Fri 20/3

15:15-11:55

2 stops31h 40m

£856

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 6/5

21:10-10:45

1 stop28h 35m

Sydney Kingsford Smith

Fri 29/5

22:10-16:30

1 stop27h 20m

£857

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 16/5

21:10-10:45

1 stop28h 35m

Sydney Kingsford Smith

Sun 31/5

22:10-16:30

1 stop27h 20m

£859

LondonSydney

LTN - SYD

LTNSYD

London Luton

Tue 3/2

20:00-17:55

2 stops34h 55m

Sydney Kingsford Smith

Mon 9/2

10:30-10:35

2 stops35h 05m

£863

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Mon 2/2

17:05-10:45

2 stops30h 40m

Sydney Kingsford Smith

Sat 7/2

21:45-09:25

2 stops46h 40m

£864

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sun 22/2

14:30-18:50

2 stops41h 20m

Sydney Kingsford Smith

Sun 1/3

21:15-23:15

2 stops37h 00m

£865

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Thu 29/1

06:25-19:20

2 stops25h 55m

Sydney Kingsford Smith

Mon 9/2

21:45-16:10

2 stops29h 25m

£868

Flights are sorted by cheapest return flights first.

Deals found on 31/12

Showing 1-10 of 60 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 26 December 2025.

The best time to book flights from London to Sydney is 57 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, February is the cheapest month in which you can book a flight from London to Sydney (average of £332). Flying from London to Sydney in January is currently the most expensive (average of £750). 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 2 January 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Sydney as you normally would.

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 2 January 2026.

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?

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

Share of one-stop return flights from London to Sydney chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Singapore (SIN) – chosen by Cheapflights users on 14% of one-stop itineraries from London to Sydney on Cheapflights.

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

Average return fare for one-stop flights from London to Sydney, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Jakarta (CGK) is the most affordable one-stop option, with an average return flight price of £343.

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

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

Flights via Jakarta (CGK) have the shortest average one-way travel time for one-stop routes: 12h 20m.

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

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

Flights via Singapore (SIN) offer the fastest connection on this route, with an average stopover time of 1h 23m.

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 2 January 2026.
Check out reviews from past customers who have flown with Cathay Pacific, China Southern, andEtihad Airways 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.

Food

7.3

Overall

7.6

Entertainment

7.8

Boarding

7.9

Comfort

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Food

7.3

Overall

7.6

Entertainment

7.8

Boarding

7.9

Comfort

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Food

7.3

Overall

7.6

Entertainment

7.8

Boarding

7.9

Comfort

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Food

7.3

Overall

7.6

Entertainment

7.8

Boarding

7.9

Comfort

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Food

7.3

Overall

7.6

Entertainment

7.8

Boarding

7.9

Comfort

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Food

7.3

Overall

7.6

Entertainment

7.8

Boarding

7.9

Comfort

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

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. 29 airlines have flights to Sydney Kingsford Smith from London on a regular basis.

  • How long is the flight from London to Sydney?

    A quick flight from London to Sydney can take about 25h 55m. Turkish Airlines provides one of the quickest options available for as low as £832. Airlines will cover a distance of 10568 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Flying on Hainan Airlines is currently your cheapest option to Sydney, with prices starting at £335. Additional return tickets that might be worth considering are offered by China Southern and Air China, with the lowest prices starting at £462 and £483, respectively. Hainan Airlines is 64% 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 China Southern (£334), Air China (£337), and Tianjin Airlines (£350).

  • 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 £664. On average you can expect to pay £4,316. The most popular route, (London Heathrow - Sydney Kingsford Smith), can usually be booked for £505.

  • 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 People's Square, Shanghai Disneyland, or Shanghai Dianchun Hall. People's Square, Shanghai Disneyland, and Shanghai Dianchun Hall are located about 20.3 mi, 8.7 mi, and 19.4 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.

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

    Most New Delhi visitors opt to spend their time at Karol Bagh, Lajpat Nagar Central Market, and Gurudwara Bangla Sahib. Karol Bagh, Lajpat Nagar Central Market, and Gurudwara Bangla Sahib are located about 8.7 mi, 8.7 mi, and 8.2 mi, respectively from New Delhi Indira Gandhi Intl. Travellers in need of a car in New Delhi can hire one for about £52 per day.

  • 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, February is the cheapest month in which you can book a flight from London to Sydney (average of £332). Flying from London to Sydney in January is currently the most expensive (average of £750). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Wollongong
Coogee
Manly

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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 2 January 2026.

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 2 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£335Average£786FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Air ChinaCheapest£483Average£859FlexibilityNo cancel feeOn-time67%
Search Air China flights
Turkish AirlinesCheapest£690Average£931FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
China AirlinesCheapest£722Average£848FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
SWISSCheapest£732Average£946FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air New ZealandCheapest£764Average£1,220FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Vietnam AirlinesCheapest£798Average£1,054FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Qatar AirwaysCheapest£819Average£1,034FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
LufthansaCheapest£825Average£987FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£865Average£996FlexibilityNo cancel feeOn-time69%
Search United 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.

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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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