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Cheap flights from the United Kingdom to Sydney from £399

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
19 May — 26 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Sydney

Enter your travel dates to find the best prices.

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 19 April 2026.

Wed 28/1021:00
LHR
-
SYD
1 stop29h 35m
China Eastern
Wed 11/1121:30
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 16/4£754
Wed 28/1010:30
LGW
-
SYD
1 stop36h 30m
China Eastern
Wed 11/1121:30
SYD
-
LGW
1 stop44h 00m
China Eastern
Deal found 16/4£756
Tue 2/614:35
LGW
-
SYD
1 stop22h 30m
Emirates
Mon 15/606:00
SYD
-
LGW
1 stop24h 30m
Emirates
Deal found 15/4£757
Tue 29/1210:30
LGW
-
SYD
1 stop40h 05m
Multiple Airlines
Sun 17/110:45
SYD
-
LGW
2 stops30h 40m
Multiple Airlines
Deal found 17/4£761
Fri 25/1210:30
LGW
-
SYD
1 stop40h 05m
Multiple Airlines
Sat 16/110:45
SYD
-
LGW
2 stops30h 40m
Multiple Airlines
Deal found 19/4£763
Tue 8/922:10
LHR
-
SYD
1 stop36h 15m
China Southern
Sun 18/1022:10
SYD
-
LHR
2 stops29h 55m
China Southern
Deal found 19/4£763
Sun 6/911:35
LGW
-
SYD
1 stop36h 25m
Multiple Airlines
Wed 14/1021:50
SYD
-
LGW
2 stops43h 15m
Multiple Airlines
Deal found 17/4£764
Mon 31/818:00
LGW
-
SYD
1 stop30h 00m
Multiple Airlines
Sun 13/920:50
SYD
-
LGW
2 stops43h 30m
Multiple Airlines
Deal found 15/4£766
Tue 27/1021:00
LHR
-
SYD
1 stop29h 35m
China Eastern
Tue 19/121:30
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 19/4£766
Tue 13/1011:35
LGW
-
SYD
1 stop36h 25m
China Eastern
Tue 10/1121:30
SYD
-
LGW
1 stop44h 00m
China Eastern
Deal found 16/4£767
Tue 2/621:05
STN
-
SYD
1 stop24h 00m
Emirates
Sat 13/620:10
SYD
-
STN
1 stop25h 45m
Emirates
Deal found 15/4£767
Tue 27/1021:00
LHR
-
SYD
1 stop29h 35m
China Eastern
Thu 12/1121:30
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 19/4£767

Find 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 19 April 2026.

Round-trip from

£757

One-way from

£399

Popular in

December

Cheapest in

May

Average price

£953

Good round-trip deal

£1,110 or less

Good one-way deal

£869 or less
Emirates
  • Emirates
  • 2/6-15/6
  • 2 total stops
  • 47h 00m total
  • United Kingdom to Sydney
Search Deals
19/5
  • 19/5
  • 3 total stops
  • 54h 50m total
  • United Kingdom to Sydney
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£61 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from United Kingdom to Sydney Kingsford Smith.
Search Deals
Price to beat on a one-way flight from United Kingdom to Sydney Kingsford Smith.
Search Deals

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 19 April 2026.
Use the filters below to find and compare flights from the United Kingdom to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSydney

LTN - SYD

LTNSYD

London Luton

Tue 2/6

09:30-19:25

2 stops24h 55m

Sydney Kingsford Smith

Tue 9/6

14:10-15:50

2 stops34h 40m

£908

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 1/6

21:20-12:35

1 stop30h 15m

Sydney Kingsford Smith

Mon 8/6

20:30-18:40

1 stop31h 10m

£908

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Thu 1/10

10:25-08:20

1 stop36h 55m

Sydney Kingsford Smith

Wed 21/10

21:50-07:05

1 stop43h 15m

£914

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Wed 24/6

11:35-08:00

3 stops35h 25m

Sydney Kingsford Smith

Mon 13/7

11:00-15:00

1 stop37h 00m

£940

LondonSydney

LTN - SYD

LTNSYD

London Luton

Thu 4/6

06:00-19:25

2 stops28h 25m

Sydney Kingsford Smith

Thu 11/6

14:10-15:40

2 stops34h 30m

£959

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 30/6

10:25-08:20

1 stop36h 55m

Sydney Kingsford Smith

Mon 24/8

20:50-07:25

1 stop43h 35m

£965

LondonSydney

LTN - SYD

LTNSYD

London Luton

Wed 3/6

06:00-19:25

2 stops28h 25m

Sydney Kingsford Smith

Wed 10/6

14:10-12:50

2 stops31h 40m

£968

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 15/9

14:45-16:50

1 stop41h 05m

Sydney Kingsford Smith

Sat 26/9

21:30-07:00

1 stop42h 30m

£973

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 30/4

09:15-16:50

1 stop22h 35m

Sydney Kingsford Smith

Sat 2/5

15:40-15:05

1 stop32h 25m

£981

LondonSydney

STN - SYD

STNSYD

London Stansted

Wed 1/7

06:55-19:10

2 stops27h 15m

Sydney Kingsford Smith

Sun 19/7

21:05-22:10

2 stops34h 05m

£988

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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 £886). Flying from United Kingdom to Sydney in December is currently the most expensive (average of £1,348). 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 19 April 2026.

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 19 April 2026.

The most flights from GB0 to SYD are scheduled on a Monday (3 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 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 19 April 2026.
Check out reviews from past customers who have flown with Emirates,Cathay Pacific, andQatar 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
3,561 reviews
Check prices

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Food

7.9

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
Emirates
8.1
Very Good
3,561 reviews
Emirates
8.1
Very Good
3,561 reviews
Check prices

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Food

7.9

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
Cathay Pacific
7.6
Good
1,282 reviews
Emirates
8.1
Very Good
3,561 reviews
Check prices

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Food

7.9

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
Qatar Airways
7.4
Good
3,730 reviews
Emirates
8.1
Very Good
3,561 reviews
Check prices

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Food

7.9

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
Etihad Airways
7.3
Good
1,431 reviews
Emirates
8.1
Very Good
3,561 reviews
Check prices

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Food

7.9

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.
China Eastern
7.3
Good
207 reviews
Emirates
8.1
Very Good
3,561 reviews
Check prices

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Food

7.9

Overall

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SFO - DXB

Business class was too crowded. Flight attendants were too busy, and not attentive. Orders were not delivered and delayed in delivered. Always lines to us restrooms.

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, AirAsia X, and Etihad Airways can get you from United Kingdom to Sydney in just under 30h 15m. Your travel time can differ by up to 10h 50m. 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?

    £212 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on AirAsia X and Beijing Capital Airlines, with prices starting from £280 and £327, 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 £4,283 for a flight from United Kingdom to Sydney. The cheapest flight overall is £620 while the most popular route, (London Heathrow - Sydney Kingsford Smith) is currently priced at £723.

  • 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 £886). Flying from United Kingdom to Sydney in December is currently the most expensive (average of £1,348). 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
Wollongong
Parramatta
Coogee
Manly

Browse thousands of different options on Cheapflights for your next trip

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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 19 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£203Average£768FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Air ChinaCheapest£533Average£764FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£553Average£1,088FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest£673Average£1,396FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
SWISSCheapest£675Average£982FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Turkish AirlinesCheapest£682Average£1,038FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Air New ZealandCheapest£761Average£1,217FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
China AirlinesCheapest£765Average£874FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
LufthansaCheapest£772Average£968FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Vietnam AirlinesCheapest£828Average£928FlexibilityNo cancel feeOn-time81%
Search Vietnam 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 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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