Cheap flights from Sydney to London from $645

SYD — LON
21 Sep — 28 Sep1
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 37 days in advance, depart on a Monday or Sunday 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

Tue 1/911:00 -
1 stop41h 10m
Fri 4/911:35 -
3 stops35h 25m
Deal found 21/8$1,435
Thu 15/1021:35 -
1 stop25h 10m
Fri 30/1022:00 -
1 stop35h 20m
Deal found 22/8$1,436
Tue 6/1021:35 -
1 stop25h 10m
Tue 27/1021:30 -
2 stops48h 55m
Deal found 20/8$1,437
Wed 30/920:30 -
1 stop43h 10m
Wed 28/1010:30 -
1 stop36h 30m
Deal found 20/8$1,437
Fri 6/1112:00 -
1 stop40h 30m
Sun 22/1121:00 -
3 stops49h 05m
Deal found 20/8$1,439
Tue 15/911:00 -
1 stop37h 00m
Mon 5/1011:35 -
1 stop36h 25m
Deal found 21/8$1,439
Fri 16/1011:05 -
2 stops37h 55m
Sat 31/1020:20 -
2 stops37h 00m
Deal found 21/8$1,440
Tue 20/1012:00 -
1 stop40h 40m
Tue 27/1021:00 -
2 stops49h 05m
Deal found 20/8$1,442
Tue 8/911:00 -
1 stop37h 00m
Tue 13/1018:00 -
2 stops29h 00m
Deal found 22/8$1,442
Sat 7/1121:30 -
1 stop27h 30m
Thu 12/1114:55 -
2 stops31h 30m
Deal found 19/8$1,443
Thu 3/921:00 -
2 stops31h 30m
Sat 26/921:20 -
2 stops49h 45m
Deal found 19/8$1,444
Thu 15/1012:00 -
1 stop28h 40m
Fri 30/1010:30 -
1 stop36h 30m
Deal found 22/8$1,444

Find flight deals from Sydney to London

Round-trip from

$1,435

One-way from

$645

Popular in

December

Cheapest in

February

Average price

$1,813

Good round-trip deal

$2,106 or less

Good one-way deal

$1,749 or less
China Eastern
  • China Eastern
  • 1/9-4/9
  • 4 total stops
  • 76h 35m total
  • Sydney to London
XiamenAir
  • XiamenAir
  • 15/10
  • 1 total stop
  • 28h 10m total
  • Sydney to London
Highest demand for flights based on searches. 6% potential increase in price ($176 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($69 potential savings vs. average return price).
Average for round-trip flights in August 2026
Price to beat on a round-trip flight from Sydney Kingsford Smith to London (LON).
Price to beat on a one-way flight from Sydney Kingsford Smith to London (LON).

Cheapflights Fare Finder

 
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 Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Sun 8/11

21:35-16:30

2 stops29h 55m

London Gatwick

Sat 14/11

06:30-19:25

2 stops25h 55m

$1,595

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Sat 21/11

21:35-16:20

2 stops29h 45m

London Heathrow

Wed 3/2

22:40-19:25

2 stops33h 45m

$1,650

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Sun 8/11

21:35-16:30

2 stops29h 55m

London Gatwick

Wed 11/11

10:05-19:25

2 stops46h 20m

$1,713

SydneyLondon

SYD Sydney Kingsford Smith - LTN London Luton

SYDLTN

Sydney Kingsford Smith

Sun 6/9

10:05-09:00

2 stops31h 55m

London Luton

Sun 13/9

07:50-19:25

2 stops26h 35m

$1,756

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Thu 10/9

21:05-22:25

2 stops34h 20m

London Gatwick

Sat 12/9

07:10-19:10

2 stops27h 00m

$1,780

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Thu 4/2

16:20-05:45

1 stop24h 25m

London Heathrow

Fri 19/2

18:45-06:55

1 stop25h 10m

$1,794

SydneyLondon

SYD Sydney Kingsford Smith - STN London Stansted

SYDSTN

Sydney Kingsford Smith

Tue 3/11

21:35-09:55

2 stops47h 20m

London Stansted

Tue 17/11

17:20-19:25

2 stops39h 05m

$1,803

SydneyLondon

SYD Sydney Kingsford Smith - LTN London Luton

SYDLTN

Sydney Kingsford Smith

Wed 9/9

20:30-21:50

2 stops34h 20m

London Luton

Wed 16/9

06:00-19:25

2 stops28h 25m

$1,877

SydneyLondon

SYD Sydney Kingsford Smith - LGW London Gatwick

SYDLGW

Sydney Kingsford Smith

Tue 3/11

21:35-22:35

2 stops36h 00m

London Gatwick

Sat 14/11

06:30-19:25

2 stops25h 55m

$1,895

SydneyLondon

SYD Sydney Kingsford Smith - LTN London Luton

SYDLTN

Sydney Kingsford Smith

Mon 7/9

10:05-12:40

2 stops35h 35m

London Luton

Wed 9/9

06:00-19:25

2 stops28h 25m

$1,905

Flights are sorted by cheapest return flights first.

Deals found on 17/8

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

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 $1,534). Flying from Sydney to London in December is currently the most expensive (average of $2,471). 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?

When flying from Sydney to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 Tuesday, which is when the least amount of flights are scheduled (2 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 $1,634 and $2,272 in September.
The cheapest return price found within the last 5 days was $1,435 on China Eastern (1 Sept–4 Sept).

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

Abu Dhabi (AUH) – chosen by Cheapflights users on 19% of one-stop itineraries from Sydney to London on Cheapflights.

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

New Delhi (DEL) is the most affordable one-stop option, with an average return flight price of $1,348.

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

Flights via Perth (PER) have the shortest average one-way travel time for one-stop routes: 23h 56m.

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

Flights via New Delhi (DEL) offer the fastest connection on this route, with an average stopover time of 1h 35m.

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

The best time to book flights from Sydney to London is 50 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing London

Get a feel of what it's like to fly with Emirates,Qantas Airways, andEtihad Airways from Sydney to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.1

Crew

8.4

Entertainment

8.2

Comfort

8.0

Boarding

8.2

Food

7.9

Reviews

1 / 20
6.0
Good

Jodie,Aug 2026

SYD - DXB

Overall it was a good flight with great service, however we paid for extra legroom only to find that the seat my husband was on was extremely small, it was the “window” seat. It seemed smaller than a regular seat so definitely not worth the amount we paid.

Overall

8.1

Crew

8.4

Entertainment

8.2

Comfort

8.0

Boarding

8.2

Food

7.9

Reviews

1 / 20
6.0
Good

Jodie,Aug 2026

SYD - DXB

Overall it was a good flight with great service, however we paid for extra legroom only to find that the seat my husband was on was extremely small, it was the “window” seat. It seemed smaller than a regular seat so definitely not worth the amount we paid.

Overall

8.1

Crew

8.4

Entertainment

8.2

Comfort

8.0

Boarding

8.2

Food

7.9

Reviews

1 / 20
6.0
Good

Jodie,Aug 2026

SYD - DXB

Overall it was a good flight with great service, however we paid for extra legroom only to find that the seat my husband was on was extremely small, it was the “window” seat. It seemed smaller than a regular seat so definitely not worth the amount we paid.

Overall

8.1

Crew

8.4

Entertainment

8.2

Comfort

8.0

Boarding

8.2

Food

7.9

Reviews

1 / 20
6.0
Good

Jodie,Aug 2026

SYD - DXB

Overall it was a good flight with great service, however we paid for extra legroom only to find that the seat my husband was on was extremely small, it was the “window” seat. It seemed smaller than a regular seat so definitely not worth the amount we paid.

Overall

8.1

Crew

8.4

Entertainment

8.2

Comfort

8.0

Boarding

8.2

Food

7.9

Reviews

1 / 20
6.0
Good

Jodie,Aug 2026

SYD - DXB

Overall it was a good flight with great service, however we paid for extra legroom only to find that the seat my husband was on was extremely small, it was the “window” seat. It seemed smaller than a regular seat so definitely not worth the amount we paid.

Overall

8.1

Crew

8.4

Entertainment

8.2

Comfort

8.0

Boarding

8.2

Food

7.9

Reviews

1 / 20
6.0
Good

Jodie,Aug 2026

SYD - DXB

Overall it was a good flight with great service, however we paid for extra legroom only to find that the seat my husband was on was extremely small, it was the “window” seat. It seemed smaller than a regular seat so definitely not worth the amount we paid.

Related info for your journey

  • Is there an alternative sustainable mode of transport from Sydney to London?

    London is situated about 10,559 miles from Sydney. The journey from the origin to the destination is long and involves crossing Australia, the Middle East, the Indian Ocean, and Europe. As a result, flights are the only sustainable means of making this journey. Flights offer fast, fuel-efficient, and high-capacity transport options for passengers who need to make this trip. Therefore, there is no alternative sustainable mode of transport that one can use when traveling from Sydney to London.

  • How can travelers reduce their carbon footprint for their journey from Sydney to London?

    The journey from Sydney to London is significantly long, and one way you can reduce your carbon footprint when on this journey is by selecting direct flights. There are several airlines that provide direct flights for this route. These flights usually consume less fuel than flights with one or several stopovers. Therefore, consider choosing an airline with direct flights for this route if you wish to reduce your carbon footprint for the journey.

  • What information is essential in helping travelers identify a sustainable airline for their Sydney to London trip?

    One of the best ways to identify a sustainable airline for your journey from Sydney to London is by researching the type of aircraft servicing the route. When you research the type of planes an airline has, you will learn about their engines and how efficient they are in fuel consumption. This will help you identify the most fuel-efficient airline you can use for your journey from Sydney to London. More so, newer aircraft often come equipped with more fuel-efficient engines than older ones.

  • What are the best ways to get to the airports in Sydney and London?

    When flying from Sydney to London, you will depart from Sydney Kingsford Smith Airport in Sydney, the largest and busiest airport in Australia. Airport Link train services reach the airport from many stations around the city and suburbs and leave every 10 minutes. You can also find taxis, ride-share and Ubers available for your convenience. When you land in London, there will be several London-serving airports that cater for this flight. Your two most commonly used flights are Heathrow Airport for direct and one-stop flights and London City Airport for two-stop flights. These two airports are both close to London central and both on busy public transportation routes. From Heathrow Airport, it is simple to get to London. Hop on the Heathrow Express train on the Piccadilly line of the underground tube and jump off at your destination station. From London City Airport train station, you can catch a train running to Canning Town station on the DLR line every 10 minutes. You can also find that taxis and Ubers will serve both airports and get you to your destination with ease.

  • Which airlines fly directly from Sydney to London?

    If you are looking for a direct flight from Sydney to London, your two main options will be Qantas Airways who complete the flight in approximately 24 hours and 30 minutes and British Airways also fly direct in just under 24 hours. Most other flights from Sydney to London will include at least one stop, sometimes two. The further in advance you book, the more likely you are to find direct flights.

  • What are the stopover options between Sydney to London?

    With Sydney to London flights that include stopovers, you can find good deals from Emirates that take on average about 27 hours to reach London, with one stop in Dubai. British Airways also stops in Doha on flights that average 32 hours and 50 minutes. For two-stop flight options you can find that KLM goes via Singapore and Amsterdam, averaging 25 hours and 30 minutes in total. ANA also flies via Tokyo and Frankfurt for a total journey time of 45 hours. Booking long-distance flights with stops doesn’t always mean they are cheaper. If you book in advance, you can get great deals on direct flights and save on budget and time.

  • Do I need a passport or visa to fly from Sydney to London?

    Luckily, if you are an Australian citizen you will be able to fly to London without a visa for business, tourism or medical reasons. You will be able to remain in the UK for up to six months visa-free, but you will need a valid, up-to-date passport to enter the country.

  • What airport do you fly from for flights from Sydney to London?

    Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to London. You should not have trouble finding flights to London from Kingsford Smith; the airport handles an average of 2 outbound flights to London per day. You should also have plenty of airline options to choose from since 23 airlines have flights from the Sydney airport to London. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.

  • How long is the flight from Sydney to London?

    For as low as $1,794, Turkish Airlines can have you in London from Sydney in 24h 25m. The distance from Sydney to London is about 17008 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Our cheapest airline available from Sydney to London is Virgin Australia. Our recent data shows that you can find tickets from as low as $852 on this airline. Additional options worth looking into are Air China and China Southern, starting at $929 and $954 round-trip. You may be able to fly from Sydney to London for 54% less than the average price by searching for these airlines.

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

    One-way options have recently been found by users for as low as $344 on China Southern. Other airlines that offer cheap prices include Hainan Airlines from $367 and China Eastern from $369 one-way.

  • What are the most popular routes from Sydney to London?

  • What are the cheapest flights from Sydney to London?

    Looking for the cheapest flight from Sydney to London? While on average our users pay $6,409, our data indicates the cheapest price to be $1,682. The most popular route (Sydney Kingsford Smith - London Heathrow), is priced around $1,286.

  • Where are the most common stopover locations when flying from Sydney to London?

  • What are some popular points of interest to see during a stopover in Singapore?

    Singapore travellers tend to visit Sentosa, Universal Studios Singapore, and Merlion more than any other notable places. Sentosa, Universal Studios Singapore, and Merlion can be accessed by travelling approximately 21.6 km, 21.6 km, and 16.9 km, respectively from Singapore Changi. Those looking to explore during their stopover in Singapore can hire a car from Singapore Changi for about $116 per day.

  • What are points of interest worth seeing during a stopover in Shanghai?

    Most Shanghai visitors opt to spend their time at People's Square, Shanghai Disneyland, and French Concession. Travelers on a layover in Shanghai can visit People's Square, Shanghai Disneyland, and French Concession, by traveling 32.7 km, 14.1 km, and 32.8 km, respectively after landing at Shanghai Pu Dong.

  • Where are the least popular stopover locations for Sydney to London flights?

  • 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 $1,534). Flying from Sydney to London in December is currently the most expensive (average of $2,471). 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
Hounslow
Milton Keynes
Kingston upon Thames
St. Albans
Luton
Horsham
Dover
Aylesbury
Guildford
Stansted
Braintree
Brentford
Gatwick
Uxbridge
Chertsey
Twickenham
Orpington
Teddington

Browse thousands of different options on Cheapflights for your next trip

Fly from Sydney to London on these airlines

Top 10 airlines flying from Sydney to London

AirlineCheapestAverageFlexibilityOn-time
Virgin AustraliaCheapest$852Average$2,101FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Air ChinaCheapest$929Average$1,565FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest$954Average$1,442FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest$1,101Average$1,589FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Turkish AirlinesCheapest$1,112Average$1,550FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
China AirlinesCheapest$1,304Average$1,622FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Air IndiaCheapest$1,371Average$1,723FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Malaysia AirlinesCheapest$1,461Average$1,700FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Cathay PacificCheapest$1,467Average$2,520FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Qatar AirwaysCheapest$1,512Average$1,944FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Helpful tips for your next trip to London

  • British Airways is one of the sustainable airlines servicing the Sydney to London route. The airline has invested in developing sustainable fuel as well as planes having zero emissions. It also encourages its passengers to work on reducing their carbon footprint.
  • Sydney is a city committed to promoting environmental conservation and sustainability. For this reason, the city management requires airlines that are landing and taking off from the airports in the city to ensure their carbon emissions are within the allowable levels.
  • When you have a flight to catch from Sydney to London, you will likely board your flight at Sydney Kingsford Smith (SYD). The airport enhances environmental conservation by implementing an intelligent waste collection policy that ensures non-biodegradable materials are channeled for recycling.

Fly with Cheapflights

How does Cheapflights help users find flights from Sydney to London?

When you search for this flight from Sydney to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Sydney to London?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Sydney to London.

Can Cheapflights find flights from Sydney to London with no change fees?

Yes! Cheapflights helps users easily find flights from Sydney to London with no change fees.

Can Cheapflights notify me if prices for flights from Sydney to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Sydney today and book when prices fit your budget.

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