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Cheap flights from Sydney to London from $720

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LON
26 Mar — 2 Apr1
1 adult

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 21 March 2025.

Round-trip from

$1,662

One-way from

$720

Popular in

December

Cheapest in

October

Average price

$1,844
China Eastern
  • China Eastern
  • 6/4-15/4
  • 5 total stops
  • 87h 25m total
  • Sydney to London
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13/5
  • 13/5
  • 3 total stops
  • 38h 45m total
  • Sydney to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($493 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($123 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Find flight deals from Sydney to London

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 21 March 2025.

Sun 6/411:20SYD - LGW
3 stops52h 20mChina Eastern
Tue 15/411:35LGW - SYD
2 stops35h 05mChina Eastern
Deal found 20/3$1,662
Tue 22/712:50SYD - LGW
2 stops44h 05mMultiple Airlines
Tue 12/813:30LGW - SYD
2 stops45h 00mMultiple Airlines
Deal found 19/3$1,695
Sun 25/520:55SYD - LGW
2 stops34h 30mTurkish Airlines
Sun 22/617:15LGW - SYD
2 stops40h 45mTurkish Airlines
Deal found 19/3$1,754
Mon 6/1012:00SYD - LGW
1 stop28h 25mSingapore Airlines
Mon 24/1109:20LGW - SYD
1 stop24h 55mSingapore Airlines
Deal found 20/3$1,758
Thu 14/819:40SYD - LGW
2 stops44h 15mAir China
Fri 12/912:35LGW - SYD
1 stop41h 15mAir China
Deal found 19/3$1,976
Mon 6/1016:00SYD - LGW
2 stops35h 50mSWISS
Mon 24/1118:45LGW - SYD
2 stops30h 05mSWISS
Deal found 20/3$2,061
Mon 6/1021:45SYD - LGW
1 stop25h 40mQatar Airways
Mon 27/1009:50LGW - SYD
1 stop22h 00mQatar Airways
Deal found 19/3$2,129
Tue 25/306:00SYD - LGW
1 stop35h 40mEmirates
Tue 22/414:30LGW - SYD
1 stop41h 50mEmirates
Deal found 19/3$2,205
Mon 6/1021:45SYD - LGW
1 stop25h 40mBritish Airways
Sun 26/1014:05LGW - SYD
1 stop41h 45mBritish Airways
Deal found 19/3$2,228
Sun 6/421:45SYD - LGW
2 stops53h 45mChina Southern
Tue 15/421:30LGW - SYD
2 stops49h 55mChina Southern
Deal found 20/3$2,256

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 134,765 searches. Data last updated 21 March 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

Departure

Return

Price

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Sun 6/4

11:20-06:40

3 stops52h 20m

London Gatwick

Tue 15/4

11:35-07:40

2 stops35h 05m

$1,662

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 22/7

12:50-23:55

2 stops44h 05m

London Gatwick

Tue 12/8

13:30-19:30

2 stops45h 00m

$1,695

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Sun 25/5

20:55-22:25

2 stops34h 30m

London Gatwick

Sun 22/6

17:15-19:00

2 stops40h 45m

$1,754

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Thu 14/8

19:40-06:55

2 stops44h 15m

London Gatwick

Fri 12/9

12:35-14:50

1 stop41h 15m

$1,976

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Fri 25/7

11:00-06:25

1 stop28h 25m

London Gatwick

Fri 22/8

10:15-16:45

1 stop21h 30m

$2,115

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Sun 25/5

09:50-07:20

2 stops30h 30m

London Gatwick

Sun 22/6

21:45-06:05

1 stop23h 20m

$2,205

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Sun 6/4

21:45-18:30

2 stops53h 45m

London Gatwick

Tue 15/4

21:30-08:25

2 stops49h 55m

$2,256

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Thu 14/8

14:50-13:25

1 stop31h 35m

London Gatwick

Mon 25/8

09:00-17:10

1 stop23h 10m

$2,391

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Sun 25/5

20:45-13:25

1 stop25h 40m

London Gatwick

Thu 19/6

14:55-17:10

1 stop41h 15m

$2,469

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 13/5

12:50-18:35

3 stops38h 45m

$720

Flights are sorted by cheapest return flights first.

Deals found on 20/3

Showing 1-10 of 20 results
1
2

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 14 March 2025.

To ensure you get the cheapest price possible for a flight from Sydney to London, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 $1,189). Flying from Sydney to London in December is currently the most expensive (average of $1,701). 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 21 March 2025.

It’s typically best to fly out from Sydney to London in the afternoon. Doing so could potentially save you 13% on the flight price compared to flying at midday, which is usually more expensive.

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 21 March 2025.

The most flights from SYD to LON are scheduled on a Monday (3 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in London by month

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

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 21 March 2025.
See what other customers who have flown with Singapore Airlines, Emirates and China Southern from Sydney to London have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,279 reviews
Check prices

Overall

8.1

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very Good
1,279 reviews
Singapore Airlines
8.1
Very Good
1,279 reviews
Check prices

Overall

8.1

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Emirates
8.0
Very Good
3,195 reviews
Singapore Airlines
8.1
Very Good
1,279 reviews
Check prices

Overall

8.1

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
China Southern
7.5
Good
90 reviews
Singapore Airlines
8.1
Very Good
1,279 reviews
Check prices

Overall

8.1

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Virgin Australia
7.5
Good
394 reviews
Singapore Airlines
8.1
Very Good
1,279 reviews
Check prices

Overall

8.1

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
SWISS
7.5
Good
1,567 reviews
Singapore Airlines
8.1
Very Good
1,279 reviews
Check prices

Overall

8.1

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Food

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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?

    Most people fly from Sydney Kingsford Smith (SYD) if they book a flight from Sydney to London. On average, Kingsford Smith has 2 outbound flights to London per day from 0 airlines. Sydney Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.

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

    According to our current data, China Eastern ($1,662), Turkish Airlines ($1,754), and Air China ($1,976) offers the cheapest pricing from Sydney to London. China Eastern is priced at 22% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapet airlines for a one-way flight from Sydney to London are China Southern ($913), China Eastern ($1,057), and Turkish Airlines ($1,171).

  • 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 $1,189). Flying from Sydney to London in December is currently the most expensive (average of $1,701). 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 Sydney?

Book flights to Sydney if you plan to visit one of these locations
Royal Tunbridge Wells
Slough
Stansted
Hounslow
Maidstone
Gatwick
Hayes
Bishop's Stortford

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