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Cheap flights from Sydney to London from $856

SYD — LON
5 Dec — 12 Dec1
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

Thu 5/1121:30 -
1 stop31h 30m
Mon 9/1120:55 -
1 stop22h 35m
Deal found 5/11$1,972
Sun 15/1121:35 -
2 stops36h 00m
Fri 27/1117:25 -
2 stops39h 00m
Deal found 4/11$2,011
Thu 5/1121:30 -
1 stop28h 00m
Sat 14/1119:20 -
1 stop36h 15m
Deal found 5/11$2,018
Sun 8/1121:35 -
2 stops46h 35m
Sun 29/1117:25 -
2 stops39h 00m
Deal found 3/11$2,018
Wed 18/1116:50 -
1 stop24h 50m
Wed 30/1221:30 -
2 stops35h 55m
Deal found 4/11$2,022
Fri 6/1121:30 -
1 stop28h 00m
Sat 28/1120:55 -
1 stop22h 35m
Deal found 3/11$2,041
Thu 12/1115:50 -
1 stop25h 05m
Wed 25/1108:40 -
1 stop35h 10m
Deal found 5/11$2,075
Sun 15/1121:35 -
2 stops35h 55m
Fri 27/1106:25 -
2 stops26h 00m
Deal found 4/11$2,079
Thu 19/1121:35 -
2 stops47h 10m
Sat 28/1106:25 -
2 stops26h 00m
Deal found 5/11$2,086
Sun 8/1121:35 -
2 stops28h 20m
Sun 29/1111:20 -
2 stops45h 05m
Deal found 5/11$2,093
Sat 21/1121:30 -
1 stop31h 40m
Wed 2/1208:40 -
1 stop34h 50m
Deal found 1/11$2,102
Thu 12/1115:10 -
1 stop26h 20m
Mon 16/1109:50 -
1 stop23h 35m
Deal found 4/11$2,112

Find flight deals from Sydney to London

Round-trip from

$1,846

One-way from

$856

Popular in

December

Cheapest in

February

Average price

$2,089
Shenzhen Airlines
  • Shenzhen Airlines
  • 26/1-20/2
  • 2 total stops
  • 61h 30m total
  • Sydney to London
Search Deals
Shenzhen Airlines
  • Shenzhen Airlines
  • 17/1-31/12
  • 1 total stop
  • 32h 00m total
  • Sydney to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($353 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 November 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Sydney to London that are best for you.

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Route

Departure

Return

Price

Cheapest return flight

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Thu 19/11

21:35-22:35

2 stops36h 00m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$984

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Thu 19/11

21:35-21:05

2 stops34h 30m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$991

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Thu 25/2

21:35-16:30

2 stops29h 55m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$995

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Sun 24/1

21:35-16:20

2 stops29h 45m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$997

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Sun 28/3

21:10-20:25

1 stop33h 15m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,087

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Wed 27/1

21:10-05:55

1 stop43h 45m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,089

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Sun 28/3

21:10-06:40

1 stop43h 30m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,093

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Fri 29/1

21:35-09:45

2 stops47h 10m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,121

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Fri 29/1

21:10-05:55

1 stop43h 45m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,143

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Thu 12/11

10:35-05:25

2 stops29h 50m

London Heathrow

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,285

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 43 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight from Sydney to London

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 $1,970). Flying from Sydney to London in December is currently the most expensive (average of $3,251). 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?

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

Weekly flight availability from Sydney to London

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?

Airfare is typical for this route at the moment.
Sydney to London flights typically cost between $1,762 and $2,577 in January.
The cheapest return price found within the last 5 days was $1,846 on Shenzhen Airlines (26 Jan–20 Feb).

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

Singapore (SIN) – chosen by Cheapflights users on 24% of one-stop itineraries from Sydney to London on Cheapflights.

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

Beijing (PEK) is the most affordable one-stop option, with an average return flight price of $2,194.

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

Flights via Singapore (SIN) have the shortest average one-way travel time for one-stop routes: 22h 40m.

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

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

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

To ensure you get the cheapest price possible for a flight from Sydney to London, you should look to book at least 26 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.

Related info for your journey

  • 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 25h 05m. Airlines will cover a distance of 17008 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 $1,970). Flying from Sydney to London in December is currently the most expensive (average of $3,251). 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
Guildford
Royal Tunbridge Wells
High Wycombe
Ilford
Hayes

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