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Cheap flights from the United Kingdom to Sydney from £388

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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from United Kingdom to Sydney

Keep the following information in mind while searching for United Kingdom to Sydney flight deals. Data was last updated 18 September 2025.

Round-trip from

£640

One-way from

£388

Popular in

December

Cheapest in

May

Average price

£840

Good round-trip deal

£1,016 or less

Good one-way deal

£933 or less
17/11-24/11
  • 17/11-24/11
  • 4 total stops
  • 82h 35m total
  • United Kingdom to Sydney
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7/3
  • 7/3
  • 3 total stops
  • 59h 10m total
  • United Kingdom to Sydney
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£76 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£23 potential savings vs. average return price).
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Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from United Kingdom to Sydney Kingsford Smith.
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Price to beat on a one-way flight from United Kingdom to Sydney Kingsford Smith.
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Find flight deals from United Kingdom to Sydney

Cheapest flights from United Kingdom to Sydney
Explore the most affordable flight options available from United Kingdom to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Mon 17/1109:40NCL - SYD
2 stops36h 45mMultiple Airlines
Mon 24/1122:00SYD - NCL
2 stops45h 50mMultiple Airlines
Deal found 16/9£640
Mon 13/1021:20LHR - SYD
3 stops49h 20mChina Eastern
Tue 28/1021:30SYD - LHR
1 stop31h 00mChina Eastern
Deal found 17/9£690
Thu 6/1121:05LHR - SYD
3 stops34h 45mMultiple Airlines
Wed 19/1114:30SYD - LHR
2 stops35h 35mMultiple Airlines
Deal found 17/9£691
Sat 1/1121:05LHR - SYD
3 stops34h 45mMultiple Airlines
Sun 9/1115:55SYD - LHR
2 stops29h 00mMultiple Airlines
Deal found 16/9£692
Wed 24/918:25LGW - SYD
1 stop29h 35mChina Eastern
Thu 2/1011:00SYD - LGW
1 stop37h 10mChina Eastern
Deal found 17/9£692
Thu 2/1011:35LGW - SYD
3 stops59h 25mMultiple Airlines
Sat 25/1015:50SYD - LGW
2 stops41h 45mMultiple Airlines
Deal found 17/9£693
Tue 11/1121:30LHR - SYD
2 stops35h 50mChina Southern
Sun 7/1222:00SYD - LHR
1 stop31h 35mChina Southern
Deal found 17/9£693
Wed 15/1022:10LHR - SYD
1 stop25h 15mChina Southern
Tue 28/1022:00SYD - LHR
1 stop31h 35mChina Southern
Deal found 17/9£694
Tue 4/1120:20LGW - SYD
2 stops37h 00mChina Southern
Sun 7/1211:25SYD - LGW
1 stop30h 35mChina Southern
Deal found 16/9£695
Thu 25/922:10LHR - SYD
1 stop36h 15mChina Southern
Fri 17/1022:15SYD - LHR
1 stop30h 45mChina Southern
Deal found 16/9£695
Sun 16/1117:15LHR - SYD
2 stops29h 10mChina Southern
Sun 7/1222:00SYD - LHR
2 stops30h 55mChina Southern
Deal found 16/9£695
Sun 26/1011:05LGW - SYD
3 stops34h 00mMultiple Airlines
Sun 9/1115:55SYD - LGW
2 stops35h 15mMultiple Airlines
Deal found 16/9£696

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 858,174 searches. Data last updated 18 September 2025.
Use the filters below to find and compare flights from the United Kingdom to Sydney that are best for you.

Fly from

United Kingdom

Fly to

Sydney

Route

Depart

Return

Price

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sun 28/9

11:35-08:30

2 stops35h 55m

Sydney Kingsford Smith

Sun 5/10

12:00-15:10

1 stop37h 10m

£726

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sun 1/3

14:30-18:50

2 stops41h 20m

Sydney Kingsford Smith

Sun 15/3

21:15-23:10

2 stops36h 55m

£736

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sun 11/1

11:35-15:30

1 stop40h 55m

Sydney Kingsford Smith

Sun 22/2

15:50-05:55

1 stop25h 05m

£817

LondonSydney

STN - SYD

STNSYD

London Stansted

Thu 6/11

20:15-18:35

1 stop35h 20m

Sydney Kingsford Smith

Fri 21/11

06:00-18:00

1 stop23h 00m

£841

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 7/10

21:45-19:00

1 stop35h 15m

Sydney Kingsford Smith

Thu 23/10

20:30-11:30

1 stop25h 00m

£849

ManchesterSydney

MAN - SYD

MANSYD

Manchester

Fri 13/2

08:25-17:55

1 stop22h 30m

Sydney Kingsford Smith

Fri 6/3

21:30-12:15

1 stop25h 45m

£854

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sun 9/11

12:40-09:25

2 stops33h 45m

Sydney Kingsford Smith

Mon 24/11

22:00-21:30

3 stops34h 30m

£859

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 28/10

20:55-17:55

1 stop34h 00m

Sydney Kingsford Smith

Wed 12/11

16:35-06:40

1 stop25h 05m

£869

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 7/3

20:15-07:15

1 stop24h 00m

Sydney Kingsford Smith

Thu 19/3

15:15-06:30

1 stop26h 15m

£880

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sun 28/9

11:35-08:30

2 stops35h 55m

Sydney Kingsford Smith

Tue 30/9

11:00-06:30

1 stop28h 30m

£889

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 60 results
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6

Best time to book a flight from United Kingdom to Sydney

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

What is the cheapest month to book a flight from United Kingdom to Sydney?

Currently, May is the cheapest month in which you can book a flight from United Kingdom to Sydney (average of £985). Flying from United Kingdom to Sydney in July is currently the most expensive (average of £1,726). 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 GB to SYD?

Find hourly flight availability from United Kingdom 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 18 September 2025.

When flying from United Kingdom to Sydney, 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 United Kingdom to Sydney

Explore weekly flight availability from United Kingdom 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 18 September 2025.

The most flights from GB0 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).

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 18 September 2025.
Check out reviews from past customers who have flown with Emirates, China Southern, andEtihad Airways from the United Kingdom to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very Good
3,339 reviews
Check prices

Entertainment

8.2

Comfort

8.0

Overall

8.1

Crew

8.3

Boarding

8.1

Food

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HYD - DXB

Had bad experience this time. Didnt like the seat comforat at all. Additionally, this time Emirates came up with crazy seat arrangement where part of family were placed in different seat and this happened with lot of passengers that day on the flight. I think they did this so that next time we buy seat and pay more. The Indian food was the worst. I booked for Hindu meal well in advance and told at the ticket counter as well but got the regular food. Good bye Emirates, will try Qatar or European airlines next time.
Emirates
8.1
Very Good
3,339 reviews
Emirates
8.1
Very Good
3,339 reviews
Check prices

Entertainment

8.2

Comfort

8.0

Overall

8.1

Crew

8.3

Boarding

8.1

Food

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HYD - DXB

Had bad experience this time. Didnt like the seat comforat at all. Additionally, this time Emirates came up with crazy seat arrangement where part of family were placed in different seat and this happened with lot of passengers that day on the flight. I think they did this so that next time we buy seat and pay more. The Indian food was the worst. I booked for Hindu meal well in advance and told at the ticket counter as well but got the regular food. Good bye Emirates, will try Qatar or European airlines next time.
China Southern
7.5
Good
110 reviews
Emirates
8.1
Very Good
3,339 reviews
Check prices

Entertainment

8.2

Comfort

8.0

Overall

8.1

Crew

8.3

Boarding

8.1

Food

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HYD - DXB

Had bad experience this time. Didnt like the seat comforat at all. Additionally, this time Emirates came up with crazy seat arrangement where part of family were placed in different seat and this happened with lot of passengers that day on the flight. I think they did this so that next time we buy seat and pay more. The Indian food was the worst. I booked for Hindu meal well in advance and told at the ticket counter as well but got the regular food. Good bye Emirates, will try Qatar or European airlines next time.
Etihad Airways
7.4
Good
1,251 reviews
Emirates
8.1
Very Good
3,339 reviews
Check prices

Entertainment

8.2

Comfort

8.0

Overall

8.1

Crew

8.3

Boarding

8.1

Food

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HYD - DXB

Had bad experience this time. Didnt like the seat comforat at all. Additionally, this time Emirates came up with crazy seat arrangement where part of family were placed in different seat and this happened with lot of passengers that day on the flight. I think they did this so that next time we buy seat and pay more. The Indian food was the worst. I booked for Hindu meal well in advance and told at the ticket counter as well but got the regular food. Good bye Emirates, will try Qatar or European airlines next time.
China Eastern
7.2
Good
166 reviews
Emirates
8.1
Very Good
3,339 reviews
Check prices

Entertainment

8.2

Comfort

8.0

Overall

8.1

Crew

8.3

Boarding

8.1

Food

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HYD - DXB

Had bad experience this time. Didnt like the seat comforat at all. Additionally, this time Emirates came up with crazy seat arrangement where part of family were placed in different seat and this happened with lot of passengers that day on the flight. I think they did this so that next time we buy seat and pay more. The Indian food was the worst. I booked for Hindu meal well in advance and told at the ticket counter as well but got the regular food. Good bye Emirates, will try Qatar or European airlines next time.
British Airways
6.7
Okay
7,367 reviews
Emirates
8.1
Very Good
3,339 reviews
Check prices

Entertainment

8.2

Comfort

8.0

Overall

8.1

Crew

8.3

Boarding

8.1

Food

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HYD - DXB

Had bad experience this time. Didnt like the seat comforat at all. Additionally, this time Emirates came up with crazy seat arrangement where part of family were placed in different seat and this happened with lot of passengers that day on the flight. I think they did this so that next time we buy seat and pay more. The Indian food was the worst. I booked for Hindu meal well in advance and told at the ticket counter as well but got the regular food. Good bye Emirates, will try Qatar or European airlines next time.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom?

    Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from United Kingdom. Kingsford Smith is conveniently located just 4.6 mi from Sydney’s city center.

  • How long is the flight from United Kingdom to Sydney?

    China Eastern, Emirates, and Air India can get you from United Kingdom to Sydney in just under 35h 15m. Your travel time can differ by up to 40m. United Kingdom and Sydney are separated by a distance of 10568 mi. This flight may include one or multiple stops.

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

    £422 is the cheapest one-way deal found within the past few days, from China Southern. You may also be able to find cheap deals on China Eastern and SWISS, with prices starting from £426 and £610, respectively.

  • What are the most popular routes from United Kingdom to Sydney?

    Most travelers choose London Heathrow - Sydney Kingsford Smith, London Gatwick - Sydney Kingsford Smith or London Stansted - Sydney Kingsford Smith when deciding on the best route from United Kingdom to Sydney.

  • What are the cheapest flights from United Kingdom to Sydney?

    On average you can expect to pay £4,240 for a flight from United Kingdom to Sydney. The cheapest flight overall is £839 while the most popular route, (London Heathrow - Sydney Kingsford Smith) is currently priced at £537.

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

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

  • How can I find direct flights from United Kingdom to Sydney?

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

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

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to Sydney?

    Currently, May is the cheapest month in which you can book a flight from United Kingdom to Sydney (average of £985). Flying from United Kingdom to Sydney in July is currently the most expensive (average of £1,726). 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
Bondi Beach
Coogee
Manly

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Alternative routes for United Kingdom to Sydney

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Top 10 airlines flying from United Kingdom to Sydney

Discover the top 10 airlines that operate flights from United Kingdom 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 858,174 searches. Data last updated 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£330Average£1,142FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Air ChinaCheapest£477Average£837FlexibilityNo cancel feeOn-time67%
Search Air China flights
Austrian AirlinesCheapest£653Average£789FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
LufthansaCheapest£663Average£946FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Vietnam AirlinesCheapest£725Average£1,046FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
China AirlinesCheapest£725Average£827FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Air New ZealandCheapest£754Average£1,176FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
FinnairCheapest£838Average£1,356FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£853Average£993FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£855Average£1,243FlexibilityNo cancel feeOn-time67%
Search Air Canada 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 United Kingdom to Sydney?

When you search for this flight from United Kingdom to Sydney, 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 United Kingdom to Sydney?

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 United Kingdom to Sydney.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from United Kingdom to Sydney flexibly with Cheapflights today.

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

Yes! Start tracking prices for United Kingdom to Sydney flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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