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$510+ Cheap flights from Sydney (SYD) to London (LON)

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LON
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from Sydney to London

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 December 15, 2025.

This Gotogate deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/263:15 pmSYD - LHR
1 stop38h 20mChina Southern
Mon 12/2910:00 pmLHR - SYD
1 stop35h 20mChina Southern
Deal found 12/12$1,344
This FlightHub deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/239:30 pmSYD - LGW
1 stop27h 30mChina Eastern
Wed 12/315:00 pmLGW - SYD
1 stop33h 35mChina Eastern
Deal found 12/14$1,437
This Gotogate deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:30 pmSYD - LGW
1 stop44h 00mChina Eastern
Tue 1/205:00 pmLGW - SYD
1 stop33h 35mChina Eastern
Deal found 12/14$1,447
This Mytrip deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:40 pmSYD - LHR
1 stop30h 15mMultiple Airlines
Mon 12/299:00 pmLHR - SYD
2 stops31h 20mMultiple Airlines
Deal found 12/12$1,453
This Gotogate deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:00 pmSYD - LHR
1 stop31h 55mMultiple Airlines
Tue 1/209:00 pmLHR - SYD
1 stop29h 35mMultiple Airlines
Deal found 12/14$1,458
This FlightHub deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/239:30 pmSYD - LHR
1 stop31h 00mChina Eastern
Wed 12/319:00 pmLHR - SYD
1 stop29h 35mChina Eastern
Deal found 12/14$1,478
This Cathay Pacific deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:20 pmSYD - LHR
1 stop32h 50mCathay Pacific
Thu 1/225:50 pmLHR - SYD
1 stop28h 45mCathay Pacific
Deal found 12/15$1,595
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/239:00 pmSYD - LHR
1 stop30h 20mMultiple Airlines
Wed 12/319:00 pmLHR - SYD
1 stop29h 35mMultiple Airlines
Deal found 12/14$1,621
This Booking.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2212:00 pmSYD - LGW
1 stop29h 30mChina Eastern
Sun 1/1110:30 amLGW - SYD
1 stop40h 05mChina Eastern
Deal found 12/14$1,642
This Booking.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/159:30 pmSYD - LGW
1 stop44h 00mChina Eastern
Thu 1/1510:30 amLGW - SYD
1 stop40h 05mChina Eastern
Deal found 12/14$1,657
This Gotogate deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/159:30 pmSYD - LGW
1 stop44h 00mChina Eastern
Mon 1/510:30 amLGW - SYD
1 stop40h 05mChina Eastern
Deal found 12/13$1,686
This Japan Airlines deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/159:15 amSYD - LHR
1 stop41h 00mJapan Airlines
Mon 2/28:35 amLHR - SYD
1 stop35h 15mJapan Airlines
Deal found 12/12$1,739

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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,089
(Air China)

One-way from

$510
(Gotogate)

Popular in

December

Cheapest in

February

Average price

$1,664
Provider with most accurate pricing for Sydney Kingsford Smith-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-London (LON) flights.
Search Deals
From Sydney Kingsford Smith to London (LON)
Search Deals
One-way flight from Sydney Kingsford Smith to London (LON)
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($159 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from Sydney to London that are best for you.

Fly from

Sydney

Fly to

London

Route

Depart

Return

Price

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Fri 3/20

9:15 pm-4:10 pm

2 stops29h 55m

London Gatwick

Mon 6/1

7:00 am-7:15 pm

2 stops27h 15m

$1,099

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Thu 2/12

12:00 pm-10:35 pm

2 stops45h 35m

London Gatwick

Sun 2/15

6:20 am-7:20 pm

2 stops26h 00m

$1,122

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 2/9

9:15 pm-2:55 pm

2 stops28h 40m

London Heathrow

Mon 2/16

5:45 pm-7:20 pm

2 stops38h 35m

$1,123

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 2/11

9:15 pm-2:55 pm

2 stops28h 40m

London Heathrow

Wed 2/18

10:35 pm-7:20 pm

2 stops33h 45m

$1,123

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 2/13

9:15 pm-9:05 pm

2 stops34h 50m

London Heathrow

Tue 2/17

6:35 am-7:20 pm

2 stops25h 45m

$1,123

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 2/9

9:15 pm-4:55 pm

2 stops30h 40m

London Heathrow

Thu 2/19

6:35 am-7:20 pm

2 stops25h 45m

$1,123

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 3/1

9:15 pm-10:25 pm

2 stops36h 10m

London Heathrow

Sun 3/22

6:35 am-7:20 pm

2 stops25h 45m

$1,124

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 5/22

10:10 pm-4:30 pm

1 stop27h 20m

London Heathrow

Tue 5/26

9:10 pm-10:45 am

1 stop28h 35m

$1,130

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 4/30

10:10 pm-4:30 pm

1 stop27h 20m

London Heathrow

Mon 11/2

9:15 pm-12:15 pm

1 stop28h 00m

$1,132

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 5/7

10:10 pm-4:30 pm

1 stop27h 20m

London Heathrow

Tue 5/26

9:10 pm-10:45 am

1 stop28h 35m

$1,133

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 35 results
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Compare providers for flights from Sydney to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to London in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
Trip.comPrice Accuracy2 starsTrust Score*3 stars
BudgetAirPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sydney-London flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sydney-London flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Sydney-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-London flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Sydney to London. Price data was last updated on December 12, 2025.

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 32 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, July is the cheapest month in which you can book a flight from Sydney to London (average of $804). Flying from Sydney to London in December is currently the most expensive (average of $1,231). 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 December 15, 2025.

It’s typically best to fly out from Sydney to London in the evening. Doing so could potentially save you 33% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Sydney to London. Price data was last updated on December 16, 2024.

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

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 December 15, 2025.

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).

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

Share of 1-stop round-trip flights from Sydney to London chosen by Cheapflights users in the past 12 months, using the same layover each way.

Bangkok (BKK) – chosen by Cheapflights users on 16% of 1-stop itineraries from Sydney to London on Cheapflights.

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

Average round-trip fare for 1-stop flights from Sydney to London, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Shanghai (PVG) is the most affordable 1-stop option, with an average round-trip price of $907.

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

Shortest average travel time for 1-stop one-way flights from Sydney to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Singapore (SIN) have the shortest average one-way travel time for 1-stop routes: 24h 08m.

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

Average layover duration for 1-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 layover time of 2h 11m.

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 December 15, 2025.
Read reviews from past customers who have flown Emirates, Singapore Airlines, and Cathay Pacific from Sydney to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,441 reviews

Food

7.9

Comfort

8.0

Boarding

8.1

Overall

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

DXB - MAN

A380 is best airplane in the world for long haul flights. And Emirates one of the top airlines.
Emirates
8.1
Very good
3,441 reviews
Emirates
8.1
Very good
3,441 reviews

Food

7.9

Comfort

8.0

Boarding

8.1

Overall

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

DXB - MAN

A380 is best airplane in the world for long haul flights. And Emirates one of the top airlines.
Singapore Airlines
8.1
Very good
1,413 reviews
Emirates
8.1
Very good
3,441 reviews

Food

7.9

Comfort

8.0

Boarding

8.1

Overall

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

DXB - MAN

A380 is best airplane in the world for long haul flights. And Emirates one of the top airlines.
Cathay Pacific
7.6
Good
1,095 reviews
Emirates
8.1
Very good
3,441 reviews

Food

7.9

Comfort

8.0

Boarding

8.1

Overall

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

DXB - MAN

A380 is best airplane in the world for long haul flights. And Emirates one of the top airlines.
China Southern
7.5
Good
122 reviews
Emirates
8.1
Very good
3,441 reviews

Food

7.9

Comfort

8.0

Boarding

8.1

Overall

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

DXB - MAN

A380 is best airplane in the world for long haul flights. And Emirates one of the top airlines.
British Airways
6.7
Okay
7,579 reviews
Emirates
8.1
Very good
3,441 reviews

Food

7.9

Comfort

8.0

Boarding

8.1

Overall

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

DXB - MAN

A380 is best airplane in the world for long haul flights. And Emirates one of the top airlines.

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

  • How long is the flight from Sydney to London?

    There are many flights that can get you from Sydney to London in 28h 10m. Fly via Turkish Airlines or China Airlines to get the fastest option. Sydney and London are separated by a distance of 10568 mi. This flight may include one or multiple stops.

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

    Cheapflights users have booked flights from Sydney to London round-trip from $956. Other airlines that can offer you cheap pricing are Etihad Airways, from $1,005, and Singapore Airlines, from $1,092. These flights start at 22% lower than the current average price 3 months from now.

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

    $300 is the cheapest one-way deal found within the past few days, from Etihad Airways. You may also be able to find cheap deals on Thai Airways and Qantas Airways, with prices starting from $609 and $695, respectively.

  • 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 vacation 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, July is the cheapest month in which you can book a flight from Sydney to London (average of $804). Flying from Sydney to London in December is currently the most expensive (average of $1,231). 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Watford
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Horley
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Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sydney to London

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Heathrow flights
Sydney to Gatwick flights

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 2,558,603 searches. Data last updated December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$956Average$1,227FlexibilityNo cancel feeOn-time72%
Etihad AirwaysCheapest$1,005Average$1,269FlexibilityNo cancel feeOn-time75%
Singapore AirlinesCheapest$1,092Average$1,465FlexibilityNo cancel feeOn-time81%
Air IndiaCheapest$1,102Average$1,235FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$1,102Average$1,691FlexibilityNo cancel feeOn-time68%
British AirwaysCheapest$1,147Average$1,519FlexibilityNo cancel feeOn-time70%
EmiratesCheapest$1,186Average$1,409FlexibilityNo cancel feeOn-time75%
Air ChinaCheapest$1,216Average$1,457FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$1,260Average$1,800FlexibilityNo cancel feeOn-time74%
China SouthernCheapest$1,316Average$1,333FlexibilityNo cancel feeOn-time69%

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