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Cheap flights from London to Sydney from $942

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
16 Jul — 23 Jul1
1 adult

Cheapflights Tip: The best prices from London to Sydney Kingsford Smith are usually found in May or March, booked 36 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from London to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Sydney (SYD). 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 11 July 2025.

Round-trip from

$1,499

One-way from

$942

Popular in

December

Cheapest in

May

Average price

$2,496

Good round-trip deal

$2,538 or less

Good one-way deal

$2,208 or less
11/9-21/10
  • 11/9-21/10
  • 4 total stops
  • 75h 40m total
  • London to Sydney
1/10
  • 1/10
  • 3 total stops
  • 53h 35m total
  • London to Sydney
Highest demand for flights based on searches. 9% potential increase in price ($328 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($96 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from London (LON) to Sydney Kingsford Smith.
Price to beat on a one-way flight from London (LON) to Sydney Kingsford Smith.

Find flight deals from London to Sydney

Cheapest flights from London to Sydney
Explore the most affordable flight options available from London to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Thu 11/918:00LGW - SYD
2 stops40h 30mMultiple Airlines
Tue 21/1013:50SYD - LGW
2 stops35h 10mMultiple Airlines
Deal found 9/7$1,499
Wed 22/1022:10LHR - SYD
1 stop25h 15mChina Southern
Mon 27/1022:00SYD - LHR
2 stops30h 55mChina Southern
Deal found 9/7$1,499
Mon 17/1110:30LGW - SYD
1 stop36h 30mChina Eastern
Tue 13/112:00SYD - LGW
1 stop37h 00mChina Eastern
Deal found 9/7$1,501
Wed 5/1117:40LHR - SYD
2 stops38h 25mMultiple Airlines
Wed 26/1120:20SYD - LHR
2 stops54h 35mMultiple Airlines
Deal found 9/7$1,501
Fri 5/912:00LGW - SYD
1 stop22h 25mChina Southern
Fri 3/1010:15SYD - LGW
2 stops41h 15mChina Southern
Deal found 9/7$1,510
Sat 1/1113:30LHR - SYD
1 stop42h 20mAir India
Sat 8/1120:20SYD - LHR
1 stop45h 15mAir India
Deal found 9/7$1,542
Sun 26/1020:25LHR - SYD
1 stop32h 05mAir China
Thu 30/1020:40SYD - LHR
1 stop32h 10mAir China
Deal found 9/7$1,557
Fri 7/1116:20STN - SYD
3 stops30h 05mMultiple Airlines
Sun 9/1114:00SYD - STN
3 stops35h 35mMultiple Airlines
Deal found 9/7$1,562
Fri 19/921:20LHR - SYD
3 stops49h 20mChina Eastern
Sun 5/1021:30SYD - LHR
1 stop31h 10mChina Eastern
Deal found 10/7$1,577
Wed 13/806:00LTN - SYD
2 stops28h 25mMultiple Airlines
Tue 14/1013:50SYD - LTN
2 stops37h 15mMultiple Airlines
Deal found 11/7$1,626
Sun 2/1118:40LGW - SYD
2 stops30h 10mSWISS
Wed 4/216:10SYD - LGW
2 stops36h 40mSWISS
Deal found 10/7$1,636
Tue 4/1119:10LCY - SYD
2 stops29h 40mSWISS
Thu 5/216:10SYD - LCY
2 stops27h 35mSWISS
Deal found 10/7$1,680

Cheapflights Fare Finder

Customise your flight search to find flights from London to Sydney 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 647,157 searches. Data last updated 11 July 2025.
Use the filters below to find and compare flights from London to Sydney that are best for you.

Fly from

London

Fly to

Sydney

Route

Depart

Return

Price

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Thu 11/9

18:00-19:30

2 stops40h 30m

Sydney Kingsford Smith

Tue 21/10

13:50-15:00

2 stops35h 10m

$1,499

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 22/10

22:10-09:25

1 stop25h 15m

Sydney Kingsford Smith

Mon 27/10

22:00-17:55

2 stops30h 55m

$1,499

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Mon 17/11

10:30-10:00

1 stop36h 30m

Sydney Kingsford Smith

Tue 13/1

12:00-14:00

1 stop37h 00m

$1,501

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Fri 5/9

12:00-19:25

1 stop22h 25m

Sydney Kingsford Smith

Fri 3/10

10:15-18:30

2 stops41h 15m

$1,510

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 13/10

22:05-20:30

2 stops36h 25m

Sydney Kingsford Smith

Sat 25/10

21:45-20:10

2 stops56h 25m

$1,525

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 1/11

13:30-18:50

1 stop42h 20m

Sydney Kingsford Smith

Sat 8/11

20:20-06:35

1 stop45h 15m

$1,542

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 26/10

20:25-15:30

1 stop32h 05m

Sydney Kingsford Smith

Thu 30/10

20:40-17:50

1 stop32h 10m

$1,557

LondonSydney

STN - SYD

STNSYD

London Stansted

Fri 7/11

16:20-09:25

3 stops30h 05m

Sydney Kingsford Smith

Sun 9/11

14:00-14:35

3 stops35h 35m

$1,562

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 19/9

21:20-07:40

3 stops49h 20m

Sydney Kingsford Smith

Sun 5/10

21:30-18:40

1 stop31h 10m

$1,577

LondonSydney

LTN - SYD

LTNSYD

London Luton

Wed 13/8

06:00-19:25

2 stops28h 25m

Sydney Kingsford Smith

Tue 14/10

13:50-17:05

2 stops37h 15m

$1,626

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 30 results
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Best time to book a flight from London to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from London 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 London to Sydney

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

Use this chart to determine the optimal time to book a return flight from London to Sydney. Price data was last updated on 27 June 2025.

To ensure you get the cheapest price possible for a flight from London to Sydney, you should look to book at least 36 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 London to Sydney?

Currently, May is the cheapest month in which you can book a flight from London to Sydney (average of $129). Flying from London to Sydney in October is currently the most expensive (average of $171). 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 LON to SYD?

Find hourly flight availability from London to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.

It’s typically best to fly out from London to Sydney in the afternoon. Doing so could potentially save you 25% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from London to Sydney?

Use this chart to determine the cheapest time to fly return from London to Sydney. Price data was last updated on 6 October 2024.

Travellers seeking maximum savings on their London to Sydney flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Sydney

Explore weekly flight availability from London to Sydney. 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 11 July 2025.

The most flights from LON to SYD 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 London to Sydney?

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 11 July 2025.
See what other customers who have flown with Emirates, China Southern, andSWISS from London to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Food

7.8

Comfort

8.0

Crew

8.3

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Hemshika,June 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

Boarding

8.1

Food

7.8

Comfort

8.0

Crew

8.3

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Hemshika,June 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

Boarding

8.1

Food

7.8

Comfort

8.0

Crew

8.3

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Hemshika,June 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

Boarding

8.1

Food

7.8

Comfort

8.0

Crew

8.3

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Hemshika,June 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

Boarding

8.1

Food

7.8

Comfort

8.0

Crew

8.3

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Hemshika,June 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

Boarding

8.1

Food

7.8

Comfort

8.0

Crew

8.3

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Hemshika,June 2025

DXB - LGW

It was not good. As soon as we entered the plane, 2 girls in front of us bend their seats down completely and startes sleeping within the next 2 minutes. I asked one of the air hostess to ask the girls to make them sit straight because we just entered the plane and we wanted to sit properly put our seat belts etc. The air hostess replied to me in the EK 009 plane that it's her right she can bend it but when we take off, she will have to straighten her seat. She never did because the air hostess never told her. The girls left their seats bent down and I had to intervene to ask them to straighten their seats because we had to eat. The girls kept telling us to please eat fast so they can bend down. What rubbish is this. Pressure to eat for their comfort and our discomfort.

Related info for your journey

Find useful and relevant information for your journey from London to Sydney. 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 into for flights to Sydney from London?

    For a flight from London to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 7.5 km from the centre vof the city. Kingsford Smith is the only Sydney airport and it handles 3 inbound flights from London per day. 14 airlines have flights to Sydney Kingsford Smith from London on a regular basis.

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

    Our cheapest airline available from London to Sydney is China Southern. Our recent data shows that you can find tickets from as low as $1,499 on this airline. Additional options worth looking into are China Eastern and Air India, starting at $1,501 and $1,542 round-trip. China Southern is priced at 24% lower than the current average price of a flight leaving 3 months from now.

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

    $943 is the cheapest one-way deal found within the past few days, from Beijing Capital Airlines. You may also be able to find cheap deals on China Southern and China Eastern, with prices starting from $948 and $958, respectively.

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

  • What are the cheapest flights from London to Sydney?

    Looking for the cheapest flight from London to Sydney? While on average our users pay $2,730, our data indicates the cheapest price to be $1,788. The most popular route (London Heathrow - Sydney Kingsford Smith), is priced around $1,275.

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

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

    The majority of Singapore visitors spend their time at Sentosa, Merlion, and Boat Quay. Sentosa, Merlion, and Boat Quay are located about 21.6 km, 16.9 km, and 17.3 km, respectively from Singapore Changi. Travellers can book a car hire at Singapore Changi for about $127 per day to make their sightseeing more efficient.

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

  • Can I find deals for flights from London to Sydney that include hotel bookings?

    Yes. In addition to deals on London to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Sydney.

  • Can I find deals for business class flights from London to Sydney?

    Yes. Cheapflights offers flight deals from London to Sydney 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 London to Sydney?

    Currently, May is the cheapest month in which you can book a flight from London to Sydney (average of $129). Flying from London to Sydney in October is currently the most expensive (average of $171). 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
Parramatta
Wollongong
Katoomba
Manly
Penrith
Coogee
Cronulla
Terrigal
Lithgow
Randwick
Bondi Beach
Leura

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Fly from London to Sydney on these airlines

Choose from the following airlines for your flight from London to Sydney. Flights are based on user searches made on Cheapflights and were last updated on 11 July 2025.

Top 10 airlines flying from London to Sydney

Discover the top 10 airlines that operate flights from London to Sydney. 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 647,157 searches. Data last updated 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$619Average$1,479FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest$1,088Average$1,812FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest$1,118Average$1,602FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest$1,498Average$2,141FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Malaysia AirlinesCheapest$1,533Average$2,071FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
China AirlinesCheapest$1,562Average$1,771FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Etihad AirwaysCheapest$1,563Average$2,446FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest$1,646Average$1,840FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
British AirwaysCheapest$1,673Average$2,258FlexibilityNo cancel feeOn-time70%
Search British Airways flights
EmiratesCheapest$1,728Average$2,348FlexibilityNo cancel feeOn-time75%
Search Emirates flights

Fly with Cheapflights

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

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Need flexible booking options for your flight to Sydney from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Of course! You can now track prices for flights from London to Sydney 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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