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Cheap flights from Sydney to London from $800

SYD — LON
10 Oct — 17 Oct1
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

Sun 18/1022:05 -
2 stops45h 50m
Sun 25/1017:25 -
2 stops39h 00m
Deal found 9/9$1,855
Wed 21/1022:05 -
2 stops45h 50m
Wed 28/1006:30 -
2 stops25h 55m
Deal found 6/9$1,877
Wed 7/1022:05 -
2 stops28h 35m
Thu 22/1007:30 -
2 stops26h 40m
Deal found 7/9$1,913
Fri 16/1022:05 -
2 stops45h 50m
Mon 19/1007:05 -
2 stops27h 05m
Deal found 7/9$1,915
Sun 11/1022:05 -
2 stops45h 50m
Sat 24/1007:10 -
2 stops27h 00m
Deal found 7/9$1,918
Thu 8/1022:05 -
2 stops34h 20m
Thu 29/1006:30 -
2 stops25h 55m
Deal found 6/9$1,934
Fri 23/1022:05 -
2 stops34h 20m
Fri 13/1117:25 -
2 stops39h 00m
Deal found 7/9$1,935
Thu 1/1021:05 -
2 stops34h 20m
Mon 30/1106:30 -
2 stops25h 55m
Deal found 8/9$1,937
Wed 7/1022:05 -
2 stops45h 50m
Thu 1/407:00 -
2 stops27h 05m
Deal found 9/9$1,949

Find flight deals from Sydney to London

Round-trip from

$1,841

One-way from

$800

Popular in

December

Cheapest in

February

Average price

$2,547
Turkish Airlines
  • Turkish Airlines
  • 5/2-20/2
  • 4 total stops
  • 61h 55m total
  • Sydney to London
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China Eastern
  • China Eastern
  • 10/10-31/12
  • 1 total stop
  • 37h 00m total
  • Sydney to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($282 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($108 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 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

Tue 6/10

22:05-16:35

2 stops28h 30m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,140

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Mon 5/10

10:50-07:20

2 stops30h 30m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,241

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Tue 13/10

21:10-21:30

1 stop34h 20m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,251

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Fri 16/10

21:10-21:30

1 stop34h 20m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,251
Fastest return journey

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Wed 16/9

14:50-06:40

1 stop24h 50m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,260

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Wed 23/9

14:50-06:40

1 stop24h 50m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,443

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Thu 4/2

20:05-06:25

1 stop45h 20m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,581

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Mon 12/10

09:05-09:55

3 stops34h 50m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,597

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Mon 14/9

09:50-07:20

2 stops30h 30m

London Gatwick

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,602

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Wed 11/11

15:50-05:55

1 stop25h 05m

London Gatwick

Sun 15/11

08:40-06:50

1 stop35h 10m

$2,036

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 15 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 $1,881). Flying from Sydney to London in December is currently the most expensive (average of $3,053). 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 below average for this route at the moment.
Sydney to London flights typically cost between $2,127 and $2,970 in February.
The cheapest return price found within the last 5 days was $1,841 on Turkish Airlines (5 Feb–20 Feb).

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

Singapore (SIN) – chosen by Cheapflights users on 25% 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 $2,108.

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 28 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.

  • 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 $1,881). Flying from Sydney to London in December is currently the most expensive (average of $3,053). 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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