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Cheap flights from Sydney to London from $820

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LON
2 Jan — 9 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 3 December 2025.

Thu 4/1217:35SYD - LGW
2 stops31h 25mMultiple Airlines
Thu 11/1208:30LGW - SYD
3 stops37h 45mMultiple Airlines
Deal found 30/11$2,372
Wed 3/1214:30SYD - LGW
2 stops32h 10mEmirates
Fri 5/1209:40LGW - SYD
2 stops33h 55mEmirates
Deal found 30/11$2,543
Mon 1/1215:50SYD - LGW
1 stop25h 05mQatar Airways
Mon 8/1209:00LGW - SYD
1 stop22h 50mQatar Airways
Deal found 30/11$2,694
Thu 4/1215:50SYD - LGW
1 stop31h 45mQatar Airways
Thu 11/1208:40LGW - SYD
1 stop35h 10mQatar Airways
Deal found 30/11$2,756
Tue 9/1206:00SYD - LGW
1 stop40h 40mEmirates
Thu 25/1209:40LGW - SYD
1 stop25h 50mEmirates
Deal found 30/11$2,784
Wed 3/1214:30SYD - LGW
2 stops32h 10mEmirates
Wed 10/1213:35LGW - SYD
2 stops30h 50mEmirates
Deal found 30/11$2,842
Sat 6/1217:35SYD - LGW
2 stops31h 25mMultiple Airlines
Sat 13/1215:25LGW - SYD
3 stops35h 10mMultiple Airlines
Deal found 2/12$2,990
Thu 4/1212:00SYD - LGW
2 stops32h 20mTurkish Airlines
Thu 11/1206:25LGW - SYD
2 stops25h 55mTurkish Airlines
Deal found 30/11$3,163
Tue 2/1215:55SYD - LGW
2 stops37h 30mEmirates
Tue 16/1209:40LGW - SYD
1 stop21h 55mEmirates
Deal found 1/12$3,181

Find 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 3 December 2025.

Round-trip from

$1,828

One-way from

$820

Popular in

December

Cheapest in

February

Average price

$2,975
Turkish Airlines
  • Turkish Airlines
  • 19/2-12/3
  • 4 total stops
  • 69h 10m total
  • Sydney to London
Search Deals
China Southern
  • China Southern
  • 20/5
  • 1 total stop
  • 30h 00m total
  • Sydney to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($545 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($129 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 3 December 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

Fri 1/5

21:10-16:20

2 stops28h 10m

London Gatwick

Mon 18/5

07:00-19:15

2 stops27h 15m

$1,910

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Thu 14/5

21:10-16:20

2 stops28h 10m

London Gatwick

Mon 18/5

07:00-19:15

2 stops27h 15m

$1,913

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Wed 15/4

21:10-16:20

2 stops28h 10m

London Gatwick

Thu 28/5

07:00-19:15

2 stops27h 15m

$1,915

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 3/2

12:45-09:20

2 stops31h 35m

London Gatwick

Thu 26/2

17:05-19:20

2 stops39h 15m

$1,950

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Mon 27/4

12:45-13:10

2 stops33h 25m

London Gatwick

Sun 17/5

17:15-19:15

2 stops41h 00m

$1,974

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 3/2

15:50-05:55

1 stop25h 05m

London Gatwick

Mon 23/2

09:00-06:50

1 stop34h 50m

$1,987

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Tue 14/4

21:10-16:20

2 stops28h 10m

London Gatwick

Sun 24/5

17:15-19:15

2 stops41h 00m

$1,992

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Thu 5/3

15:50-05:55

1 stop25h 05m

London Gatwick

Mon 9/3

09:00-06:50

1 stop34h 50m

$1,999

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Wed 21/1

15:50-05:55

1 stop25h 05m

London Gatwick

Fri 6/2

14:05-06:50

1 stop29h 45m

$2,034

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Sat 31/1

15:50-05:55

1 stop25h 05m

London Gatwick

Tue 24/2

14:05-06:50

1 stop29h 45m

$2,034

Flights are sorted by cheapest return flights first.

Deals found on 2/12

Showing 1-10 of 23 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 28 November 2025.

To ensure you get the cheapest price possible for a flight from Sydney to London, you should look to book at least 53 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 $1,136). Flying from Sydney to London in December is currently the most expensive (average of $2,149). 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 3 December 2025.

It’s typically best to fly out from Sydney to London in the morning. Doing so could potentially save you 6% 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 3 December 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 $1,485.

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: 22h 55m.

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 Dubai (DXB) offer the fastest connection on this route, with an average stopover time of 1h 13m.

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 3 December 2025.
Read reviews from past customers who have flown with China Eastern from Sydney to London. 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.
China Eastern
7.2
Good
178 reviews
Check prices

Entertainment

6.2

Food

6.8

Crew

7.9

Comfort

7.2

Boarding

7.6

Overall

7.2

Reviews

1 / 5
2.0
Mediocre

P R,Sept 2025

LGW - PVG

From check in to to the flight attendants, the staff of China Eastern were so rude. At check in, all staff had icy looks, and ours didn’t respond to any greetings or thank yous. Despite not at all leaning into the aisle, one flight attendant was repeatedly bolting up and down the aisle, and knocking me when passing by waking me up several times.
China Eastern
7.2
Good
178 reviews
China Eastern
7.2
Good
178 reviews
Check prices

Entertainment

6.2

Food

6.8

Crew

7.9

Comfort

7.2

Boarding

7.6

Overall

7.2

Reviews

1 / 5
2.0
Mediocre

P R,Sept 2025

LGW - PVG

From check in to to the flight attendants, the staff of China Eastern were so rude. At check in, all staff had icy looks, and ours didn’t respond to any greetings or thank yous. Despite not at all leaning into the aisle, one flight attendant was repeatedly bolting up and down the aisle, and knocking me when passing by waking me up several times.

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 3 outbound flights to London per day from 0 airlines. Sydney Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.

  • How long is the flight from Sydney to London?

    Departing from Sydney to London will take you 28h 10m. Airlines will cover a distance of 17008 km.

  • 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 $1,136). Flying from Sydney to London in December is currently the most expensive (average of $2,149). 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?

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