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Cheap flights from Sydney to London from £320

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LON
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Sydney Kingsford Smith to London are usually found in February or May, booked 32 days in advance, depart on a Friday or Tuesday and return on a Monday

Cheap flight deals from Sydney to London

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to London (LON). 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 27 November 2025.

Round-trip from

£742

One-way from

£320

Popular in

December

Cheapest in

February

Average price

£839
Air China
  • Air China
  • 13/5-28/5
  • 2 total stops
  • 78h 15m total
  • Sydney to London
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1/3
  • 1/3
  • 3 total stops
  • 43h 40m total
  • Sydney to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£101 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£25 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find flight deals from Sydney to London

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to London
Explore the most affordable flight options available from Sydney to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 November 2025.

Mon 1/1221:30SYD - LHR
1 stop28h 00mEtihad Airways
Mon 8/1219:20LHR - SYD
1 stop24h 15mEtihad Airways
Deal found 26/11£774
Tue 25/1115:50SYD - LGW
1 stop25h 05mMultiple Airlines
Tue 2/1210:30LGW - SYD
1 stop36h 30mMultiple Airlines
Deal found 24/11£787
Mon 1/1221:30SYD - LHR
1 stop44h 10mMultiple Airlines
Sun 7/1220:25LHR - SYD
1 stop32h 05mMultiple Airlines
Deal found 24/11£792
Wed 26/1115:15SYD - LHR
1 stop26h 15mCathay Pacific
Thu 4/1222:05LHR - SYD
1 stop26h 55mCathay Pacific
Deal found 25/11£793
Tue 2/1216:35SYD - LHR
1 stop25h 05mMultiple Airlines
Sat 6/1220:25LHR - SYD
1 stop32h 05mMultiple Airlines
Deal found 25/11£796
Mon 1/1216:35SYD - LHR
1 stop25h 05mMultiple Airlines
Fri 5/1217:40LHR - SYD
1 stop34h 50mMultiple Airlines
Deal found 24/11£799
Sun 30/1106:35SYD - LGW
2 stops42h 25mMultiple Airlines
Sun 7/1211:35LGW - SYD
1 stop40h 55mMultiple Airlines
Deal found 24/11£808
Tue 25/1117:45SYD - LHR
2 stops35h 50mMultiple Airlines
Tue 2/1221:00LHR - SYD
1 stop26h 00mMultiple Airlines
Deal found 24/11£814
Tue 25/1121:30SYD - LHR
1 stop31h 40mEtihad Airways
Mon 8/1219:20LHR - SYD
1 stop24h 15mEtihad Airways
Deal found 24/11£815
Wed 26/1116:35SYD - LHR
1 stop25h 05mEtihad Airways
Wed 10/1208:50LHR - SYD
1 stop34h 45mEtihad Airways
Deal found 25/11£816
Fri 28/1115:15SYD - LHR
1 stop34h 45mCathay Pacific
Fri 5/1211:00LHR - SYD
1 stop22h 50mCathay Pacific
Deal found 26/11£817
Thu 27/1117:35SYD - LHR
3 stops60h 45mMultiple Airlines
Sat 6/1220:25LHR - SYD
1 stop32h 05mMultiple Airlines
Deal found 24/11£817

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to London 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 27 November 2025.
Use the filters below to find and compare flights from Sydney to London that are best for you.

Fly from

Sydney

Fly to

London

Route

Depart

Return

Price

SydneyLondon

SYD - LTN

SYDLTN

Sydney Kingsford Smith

Sun 1/3

16:35-14:15

2 stops32h 40m

London Luton

Sun 15/3

14:40-06:35

2 stops28h 55m

£776

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Fri 20/2

21:15-22:35

2 stops36h 20m

London Gatwick

Sun 22/3

06:20-19:20

2 stops26h 00m

£804

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Fri 20/2

21:15-16:10

2 stops29h 55m

London Gatwick

Mon 16/3

17:05-19:20

2 stops39h 15m

£804

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Fri 20/2

21:15-16:10

2 stops29h 55m

London Gatwick

Sat 14/3

06:15-19:20

2 stops26h 05m

£804

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 17/2

12:45-09:20

2 stops31h 35m

London Gatwick

Sat 21/3

17:05-19:20

2 stops39h 15m

£817

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 17/2

12:45-09:20

2 stops31h 35m

London Gatwick

Sun 22/3

06:20-19:20

2 stops26h 00m

£817

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 18/5

10:15-17:50

1 stop40h 35m

London Heathrow

Mon 1/6

18:55-08:15

2 stops28h 20m

£839

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Mon 4/5

11:00-06:25

1 stop28h 25m

London Gatwick

Sun 7/6

10:15-16:45

1 stop21h 30m

£839

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 20/5

10:15-16:55

1 stop39h 40m

London Heathrow

Thu 28/5

19:10-12:15

2 stops32h 05m

£842

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Sun 15/2

15:50-05:55

1 stop25h 05m

London Gatwick

Sun 8/3

14:05-06:50

1 stop29h 45m

£848

Flights are sorted by cheapest return flights first.

Deals found on 25/11

Showing 1-10 of 60 results
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Best time to book a flight from Sydney to London

Have a flexible travel schedule? Discover the best time to fly to London from Sydney 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 Sydney to London

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

Use this chart to determine the optimal time to book a return flight from Sydney to London. Price data was last updated on 21 November 2025.

The price you pay for your flight from Sydney to London may vary depending on when you book. For the best chance of a lower fare, look to book 32 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, February is the cheapest month in which you can book a flight from Sydney to London (average of £492). Flying from Sydney to London in December is currently the most expensive (average of £932). 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 SYD to LON?

Find hourly flight availability from Sydney to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 November 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 19% on flights from Sydney to London by exploring options for tickets in the morning.

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

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

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

Weekly flight availability from Sydney to London

Explore weekly flight availability from Sydney to London. 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 27 November 2025.

The most flights from SYD to LON 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 Sydney to London?

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

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

Singapore (SIN) – chosen by Cheapflights users on 18% of one-stop itineraries from Sydney to London on Cheapflights.

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

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

Beijing (PEK) is the most affordable one-stop option, with an average return flight price of £743.

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

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

Flights via Dubai (DXB) have the shortest average one-way travel time for one-stop routes: 23h 40m.

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

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

Flights via Istanbul (IST) offer the fastest connection on this route, with an average stopover time of 2h 00m.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 27 November 2025.
Read through reviews of airlines operating flights from Sydney to London, such as Emirates, Cathay Pacific, andEtihad Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very Good
3,422 reviews
Check prices

Overall

8.1

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

Reviews

1 / 20
10.0
Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this
Emirates
8.1
Very Good
3,422 reviews
Emirates
8.1
Very Good
3,422 reviews
Check prices

Overall

8.1

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

Reviews

1 / 20
10.0
Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this
Cathay Pacific
7.6
Good
1,072 reviews
Emirates
8.1
Very Good
3,422 reviews
Check prices

Overall

8.1

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

Reviews

1 / 20
10.0
Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this
Etihad Airways
7.4
Good
1,312 reviews
Emirates
8.1
Very Good
3,422 reviews
Check prices

Overall

8.1

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

Reviews

1 / 20
10.0
Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this
China Eastern
7.2
Good
178 reviews
Emirates
8.1
Very Good
3,422 reviews
Check prices

Overall

8.1

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

Reviews

1 / 20
10.0
Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this
British Airways
6.7
Okay
7,539 reviews
Emirates
8.1
Very Good
3,422 reviews
Check prices

Overall

8.1

Entertainment

8.2

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.9

Reviews

1 / 20
10.0
Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

Related info for your journey

Find useful and relevant information for your journey from Sydney to London. 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 from for flights from Sydney to London?

    For a flight from Sydney to London, you will be flying from 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 outbound flights to London per day. 14 airlines have flights to London from Sydney Kingsford Smith on a regular basis.

  • How long is the flight from Sydney to London?

    Turkish Airlines, Vietnam Airlines, and Emirates can get you from Sydney to London in just under 36h 20m. Your travel time can differ by up to 4h 45m. The distance from Sydney to London is about 10568 mi. This flight may include one or multiple stops.

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

    Flying on China Southern is currently your cheapest option to London, with prices starting at £614. Additional return tickets that might be worth considering are offered by Air China and China Eastern, with the lowest prices starting at £681 and £691, respectively. China Southern is 34% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with Turkish Airlines, which is currently one of the cheapest options available, starting at £331. China Eastern flights start at £335 while deals on Air China start at £353 one-way.

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

    The most popular flight routes from Sydney to London are Sydney Kingsford Smith - London Heathrow, Sydney Kingsford Smith - London Gatwick and Sydney Kingsford Smith - London Stansted.

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

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

  • How can I find direct flights from Sydney to London?

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

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

    Yes. Cheapflights offers flight deals from Sydney to London 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 Sydney to London?

    Currently, February is the cheapest month in which you can book a flight from Sydney to London (average of £492). Flying from Sydney to London in December is currently the most expensive (average of £932). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Slough
Croydon
Hounslow
Gatwick
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Brentford
Winchester
Crawley
Romford
Chichester
Bedford
Guildford
Ipswich

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.

Top 10 airlines flying from Sydney to London

Discover the top 10 airlines that operate flights from Sydney to London. 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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£614Average£932FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£681Average£790FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£691Average£1,226FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air IndiaCheapest£707Average£918FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest£740Average£905FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Turkish AirlinesCheapest£743Average£996FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Cathay PacificCheapest£757Average£964FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Qatar AirwaysCheapest£767Average£1,052FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Singapore AirlinesCheapest£776Average£970FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Malaysia AirlinesCheapest£792Average£1,064FlexibilityNo cancel feeOn-time67%
Search Malaysia 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 Sydney to London?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Sydney to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Sydney.

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

Need flexible booking options for your flight to London from Sydney? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Of course! You can now track prices for flights from Sydney to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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