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Cheap flights from Sydney to London from £335

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LON
4 May — 11 May1
1 adult

Cheapflights Tip: The best prices from Sydney Kingsford Smith to London are usually found in October or February, booked 62 days in advance, depart on a Friday or Sunday and return on a Monday

Cheap 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 29 April 2025.

Round-trip from

£701

One-way from

£335

Popular in

December

Cheapest in

October

Average price

£929

Good round-trip deal

£1,164 or less

Good one-way deal

£669 or less
China Eastern
  • China Eastern
  • 8/6-29/6
  • 2 total stops
  • 61h 25m total
  • Sydney to London
7/10
  • 7/10
  • 3 total stops
  • 43h 35m total
  • Sydney to London
Highest demand for flights based on searches. 11% potential increase in price (£92 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£24 potential savings vs. average return price).
Average for round-trip flights in April 2025
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).

Find 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 29 April 2025.

Sun 8/620:30SYD - LHR
1 stop31h 10mChina Eastern
Sun 29/621:20LHR - SYD
1 stop30h 15mChina Eastern
Deal found 28/4£701
Thu 12/621:00SYD - LHR
2 stops31h 30mMultiple Airlines
Thu 19/621:00LHR - SYD
2 stops37h 40mMultiple Airlines
Deal found 28/4£703
Thu 22/519:40SYD - LHR
1 stop31h 05mAir China
Sat 7/622:00LHR - SYD
2 stops55h 50mAir China
Deal found 28/4£706
Tue 11/1121:40SYD - LGW
2 stops46h 40mTurkish Airlines
Tue 18/1106:00LGW - SYD
2 stops26h 45mTurkish Airlines
Deal found 29/4£706
Mon 12/510:15SYD - LGW
2 stops41h 15mChina Southern
Sat 31/521:30LGW - SYD
2 stops61h 10mChina Southern
Deal found 28/4£706
Mon 5/510:15SYD - LGW
2 stops41h 15mMultiple Airlines
Thu 5/612:35LGW - SYD
1 stop41h 15mMultiple Airlines
Deal found 27/4£707
Tue 20/521:30SYD - LHR
1 stop30h 15mEtihad Airways
Fri 20/609:30LHR - SYD
1 stop22h 25mEtihad Airways
Deal found 28/4£709
Wed 14/511:00SYD - LGW
1 stop28h 40mChina Eastern
Mon 19/518:05LGW - SYD
1 stop33h 30mChina Eastern
Deal found 28/4£709
Sun 26/1022:00SYD - LHR
1 stop31h 15mChina Southern
Sat 1/1122:00LHR - SYD
1 stop35h 20mChina Southern
Deal found 28/4£711
Wed 4/613:05SYD - LHR
1 stop25h 50mMalaysia Airlines
Tue 17/621:35LHR - SYD
1 stop27h 25mMalaysia Airlines
Deal found 28/4£715
Fri 25/719:40SYD - LGW
2 stops32h 05mAir China
Sat 9/811:25LGW - SYD
2 stops42h 30mAir China
Deal found 28/4£716
Tue 11/1121:40SYD - LHR
2 stops35h 45mTurkish Airlines
Tue 18/1122:35LHR - SYD
2 stops34h 10mTurkish Airlines
Deal found 29/4£737

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 29 April 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 - LHR

SYDLHR

Sydney Kingsford Smith

Sun 8/6

20:30-18:40

1 stop31h 10m

London Heathrow

Sun 29/6

21:20-12:35

1 stop30h 15m

£701

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 12/6

21:00-19:30

2 stops31h 30m

London Heathrow

Thu 19/6

21:00-19:40

2 stops37h 40m

£703

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 22/5

19:40-17:45

1 stop31h 05m

London Heathrow

Sat 7/6

22:00-14:50

2 stops55h 50m

£706

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Mon 12/5

10:15-18:30

2 stops41h 15m

London Gatwick

Sat 31/5

21:30-19:40

2 stops61h 10m

£706

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 20/5

21:30-18:45

1 stop30h 15m

London Heathrow

Fri 20/6

09:30-16:55

1 stop22h 25m

£709

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Wed 14/5

11:00-06:40

1 stop28h 40m

London Gatwick

Mon 19/5

18:05-12:35

1 stop33h 30m

£709

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 26/10

22:00-18:15

1 stop31h 15m

London Heathrow

Sat 1/11

22:00-20:20

1 stop35h 20m

£711

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 4/6

13:05-05:55

1 stop25h 50m

London Heathrow

Tue 17/6

21:35-10:00

1 stop27h 25m

£715

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Fri 25/7

19:40-18:45

2 stops32h 05m

London Gatwick

Sat 9/8

11:25-14:55

2 stops42h 30m

£716

SydneyLondon

SYD - LGW

SYDLGW

Sydney Kingsford Smith

Mon 9/6

06:00-06:40

2 stops33h 40m

London Gatwick

Mon 16/6

11:35-12:35

1 stop40h 00m

£723

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 50 results
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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 25 April 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 62 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, January is the cheapest month in which you can book a flight from Sydney to London (average of £112). Flying from Sydney to London in August is currently the most expensive (average of £164). 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 29 April 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 31% on flights from Sydney to London by exploring options for tickets in the evening.

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

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

Travellers seeking maximum savings on their Sydney to London flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday afternoons 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 29 April 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).

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 29 April 2025.
Read reviews from past customers who have flown Japan Airlines, China Airlines and Hainan Airlines from Sydney to London. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.7

Food

7.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority

Crew

8.7

Food

7.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority

Crew

8.7

Food

7.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority

Crew

8.7

Food

7.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority

Crew

8.7

Food

7.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority

Crew

8.7

Food

7.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority

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.

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

    Flying on China Eastern is currently your cheapest option to London, with prices starting at £701. Additional return tickets that might be worth considering are offered by Air China and China Southern, with the lowest prices starting at £706 and £706, respectively. China Eastern is 24% 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 £336. China Southern flights start at £341 while deals on Air China start at £346 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 £961, our data indicates the cheapest price to be £638. The most popular route (Sydney Kingsford Smith - London Heathrow), is priced around £638.

  • 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, January is the cheapest month in which you can book a flight from Sydney to London (average of £112). Flying from Sydney to London in August is currently the most expensive (average of £164). 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 Sydney?

Book flights to Sydney if you plan to visit one of these locations
Deal
Hounslow
Milton Keynes
Gatwick
Luton
Slough
Croydon
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Ilford
Hayes
Southend-on-Sea
Crawley
Wembley
Ipswich
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Winchester
Folkestone
Dartford
Watford
Chichester

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 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£601Average£965FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£620Average£852FlexibilityNo cancel feeOn-time67%
Search Air China flights
China AirlinesCheapest£677Average£916FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
China EasternCheapest£685Average£994FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air IndiaCheapest£710Average£846FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest£725Average£967FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Turkish AirlinesCheapest£734Average£1,111FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Cathay PacificCheapest£748Average£928FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Singapore AirlinesCheapest£767Average£933FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Asiana AirlinesCheapest£775Average£866FlexibilityNo cancel feeOn-time76%
Search Asiana 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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