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Cheap flights from Sydney to London from £405

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 23/7. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LON
14 May — 21 May1
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 20 days in advance, depart on a Wednesday or Thursday and return on a Monday

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 14 April 2026.

Sun 11/1016:40
SYD
-
LHR
1 stop24h 20m
Etihad Airways
Mon 9/1113:55
LHR
-
SYD
1 stop29h 40m
Etihad Airways
Deal found 9/4£705
Fri 9/1010:45
SYD
-
LGW
2 stops30h 40m
AirAsia X
Fri 23/1010:25
LGW
-
SYD
2 stops36h 55m
AirAsia X
Deal found 9/4£706
Wed 14/1016:40
SYD
-
LHR
1 stop24h 20m
Etihad Airways
Sun 8/1108:50
LHR
-
SYD
1 stop22h 05m
Etihad Airways
Deal found 12/4£706
Tue 3/1116:35
SYD
-
LHR
1 stop25h 05m
Etihad Airways
Fri 20/1113:55
LHR
-
SYD
1 stop29h 40m
Etihad Airways
Deal found 11/4£707
Sun 19/419:40
SYD
-
LGW
2 stops44h 15m
Air China
Sun 17/512:35
LGW
-
SYD
1 stop41h 15m
Air China
Deal found 13/4£709
Thu 22/1020:40
SYD
-
LHR
1 stop31h 00m
Air China
Thu 12/1120:25
LHR
-
SYD
1 stop32h 05m
Air China
Deal found 12/4£712
Thu 5/1120:40
SYD
-
LHR
1 stop32h 10m
Air China
Thu 26/1117:40
LHR
-
SYD
1 stop34h 50m
Air China
Deal found 9/4£721
Wed 7/1021:50
SYD
-
LGW
2 stops43h 15m
AirAsia X
Wed 28/1009:25
LGW
-
SYD
2 stops36h 50m
AirAsia X
Deal found 9/4£721
Fri 9/1010:45
SYD
-
LGW
1 stop30h 40m
AirAsia X
Fri 30/1009:25
LGW
-
SYD
1 stop36h 50m
AirAsia X
Deal found 10/4£722
Sun 6/909:45
SYD
-
LGW
1 stop30h 40m
AirAsia X
Fri 30/1009:25
LGW
-
SYD
1 stop36h 50m
AirAsia X
Deal found 12/4£723
Sat 17/1010:45
SYD
-
LGW
2 stops30h 40m
AirAsia X
Wed 28/1009:25
LGW
-
SYD
2 stops36h 50m
AirAsia X
Deal found 11/4£724
Sun 15/1110:45
SYD
-
LGW
1 stop30h 40m
AirAsia X
Wed 25/1109:25
LGW
-
SYD
1 stop36h 50m
AirAsia X
Deal found 11/4£724

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 14 April 2026.

Round-trip from

£705

One-way from

£405

Popular in

December

Cheapest in

February

Average price

£955

Good round-trip deal

£1,242 or less

Good one-way deal

£1,181 or less
Etihad Airways
  • Etihad Airways
  • 11/10-9/11
  • 2 total stops
  • 54h 00m total
  • Sydney to London
Search Deals
Hainan Airlines
  • Hainan Airlines
  • 23/7
  • 2 total stops
  • 31h 30m total
  • Sydney to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£67 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Sydney Kingsford Smith to London (LON).
Search Deals
Price to beat on a one-way flight from Sydney Kingsford Smith to London (LON).
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 858,174 searches. Data last updated 14 April 2026.
Use the filters below to find and compare flights from Sydney to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyLondon

SYD - LTN

SYDLTN

Sydney Kingsford Smith

Wed 10/6

15:40-17:50

2 stops35h 10m

London Luton

Wed 24/6

14:50-06:10

2 stops30h 20m

£803

SydneyLondon

SYD - LTN

SYDLTN

Sydney Kingsford Smith

Sun 31/5

15:40-18:15

2 stops35h 35m

London Luton

Sat 20/6

12:45-06:10

2 stops32h 25m

£812

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Mon 27/7

20:50-07:25

1 stop43h 35m

London Gatwick

Thu 13/8

10:25-08:20

1 stop36h 55m

£848

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 17/5

15:40-15:05

1 stop32h 25m

London Heathrow

Thu 21/5

21:45-16:50

1 stop34h 05m

£885

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Fri 10/7

09:45-07:25

1 stop30h 40m

London Gatwick

Thu 30/7

10:25-08:20

1 stop36h 55m

£890

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 1/5

09:30-14:20

1 stop37h 50m

London Heathrow

Mon 11/5

16:35-07:30

1 stop29h 55m

£1,010

SydneyLondon

SYD - LTN

SYDLTN

Sydney Kingsford Smith

Thu 28/5

20:50-22:10

2 stops34h 20m

London Luton

Sat 13/6

09:35-06:10

2 stops35h 35m

£1,039

SydneyLondon

SYD - STN

SYDSTN

Sydney Kingsford Smith

Thu 28/5

06:00-12:55

1 stop39h 55m

London Stansted

Thu 4/6

21:05-06:25

2 stops48h 20m

£1,053

SydneyLondon

SYD - STN

SYDSTN

Sydney Kingsford Smith

Sun 7/6

20:45-12:55

1 stop25h 10m

London Stansted

Tue 9/6

14:55-06:25

2 stops54h 30m

£1,054
Fastest return journey

SydneyLondon

SYD - STN

SYDSTN

Sydney Kingsford Smith

Sun 11/10

21:10-12:55

1 stop25h 45m

London Stansted

Tue 10/11

14:05-22:30

1 stop21h 25m

£1,055

Flights are sorted by cheapest return flights first.

Deals found on 9/4

Showing 1-10 of 60 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
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 10 April 2026.

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 20 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 £491). Flying from Sydney to London in December is currently the most expensive (average of £927). 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 14 April 2026.

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

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 14 April 2026.

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.

Hong Kong (HKG) – chosen by Cheapflights users on 16% 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.

Guangzhou (CAN) is the most affordable one-stop option, with an average return flight price of £759.

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 53m.

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 Singapore (SIN) offer the fastest connection on this route, with an average stopover time of 1h 45m.

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 14 April 2026.
Read through reviews of airlines operating flights from Sydney to London, such as Cathay Pacific,China Southern, andEtihad Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,275 reviews
Check prices

Crew

8.1

Overall

7.6

Entertainment

7.8

Food

7.3

Boarding

7.9

Comfort

7.6

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.
Cathay Pacific
7.6
Good
1,275 reviews
Cathay Pacific
7.6
Good
1,275 reviews
Check prices

Crew

8.1

Overall

7.6

Entertainment

7.8

Food

7.3

Boarding

7.9

Comfort

7.6

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.
China Southern
7.4
Good
146 reviews
Cathay Pacific
7.6
Good
1,275 reviews
Check prices

Crew

8.1

Overall

7.6

Entertainment

7.8

Food

7.3

Boarding

7.9

Comfort

7.6

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.
Etihad Airways
7.3
Good
1,430 reviews
Cathay Pacific
7.6
Good
1,275 reviews
Check prices

Crew

8.1

Overall

7.6

Entertainment

7.8

Food

7.3

Boarding

7.9

Comfort

7.6

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.
China Eastern
7.2
Good
202 reviews
Cathay Pacific
7.6
Good
1,275 reviews
Check prices

Crew

8.1

Overall

7.6

Entertainment

7.8

Food

7.3

Boarding

7.9

Comfort

7.6

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.
British Airways
6.7
Okay
7,885 reviews
Cathay Pacific
7.6
Good
1,275 reviews
Check prices

Crew

8.1

Overall

7.6

Entertainment

7.8

Food

7.3

Boarding

7.9

Comfort

7.6

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.

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. 15 airlines have flights to London from Sydney Kingsford Smith on a regular basis.

  • How long is the flight from Sydney to London?

    AirAsia X, Etihad Airways, and Asiana Airlines can get you from Sydney to London in just under 32h 25m. Your travel time can differ by up to 11h 10m. 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 Turkish Airlines is currently your cheapest option to London, with prices starting at £615. Additional return tickets that might be worth considering are offered by China Eastern and China Southern, with the lowest prices starting at £628 and £628, respectively. Turkish Airlines 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 Hainan Airlines, which is currently one of the cheapest options available, starting at £188. China Southern flights start at £194 while deals on Air China start at £206 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.

  • What are the cheapest flights from Sydney to London?

    Looking for the cheapest flight from Sydney to London? While on average our users pay £1,521, our data indicates the cheapest price to be £723. The most popular route (Sydney Kingsford Smith - London Heathrow), is priced around £644.

  • 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 £491). Flying from Sydney to London in December is currently the most expensive (average of £927). 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
Wembley
Croydon
Hounslow
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Chelmsford
Ipswich
Southend-on-Sea
Guildford
Bishop's Stortford

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 14 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest£615Average£977FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
China EasternCheapest£628Average£752FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£628Average£1,097FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£664Average£866FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest£687Average£874FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest£688Average£877FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Malaysia AirlinesCheapest£777Average£1,058FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
EmiratesCheapest£792Average£1,168FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Qatar AirwaysCheapest£802Average£1,033FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Singapore AirlinesCheapest£828Average£1,179FlexibilityNo cancel feeOn-time81%
Search Singapore 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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