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Cheap flights from the United Kingdom to Sydney from $840

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
1 May — 8 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 1 April 2026.

Sat 9/514:45
LHR
-
SYD
1 stop30h 25m
Etihad Airways
Wed 13/515:40
SYD
-
LHR
1 stop30h 05m
Etihad Airways
Deal found 29/3$1,430
Mon 1/612:25
LTN
-
SYD
2 stops32h 45m
Multiple Airlines
Sun 7/611:25
SYD
-
LTN
2 stops34h 50m
Multiple Airlines
Deal found 27/3$1,432
Wed 28/1010:30
LGW
-
SYD
1 stop40h 05m
China Eastern
Wed 18/1121:30
SYD
-
LGW
1 stop44h 00m
China Eastern
Deal found 28/3$1,433
Mon 19/1021:20
LHR
-
SYD
1 stop30h 15m
China Eastern
Mon 16/1112:00
SYD
-
LHR
1 stop40h 30m
China Eastern
Deal found 27/3$1,433
Thu 29/1009:25
LGW
-
SYD
2 stops36h 50m
Multiple Airlines
Tue 3/1114:20
SYD
-
LGW
2 stops38h 45m
Multiple Airlines
Deal found 28/3$1,435
Mon 27/409:15
LHR
-
SYD
1 stop22h 35m
Etihad Airways
Mon 4/520:50
SYD
-
LHR
1 stop30h 55m
Etihad Airways
Deal found 27/3$1,435
Tue 20/1018:00
LGW
-
SYD
1 stop30h 00m
China Eastern
Tue 17/1121:30
SYD
-
LGW
1 stop27h 30m
China Eastern
Deal found 27/3$1,436
Sun 1/1121:30
LHR
-
SYD
2 stops35h 50m
China Southern
Tue 17/1111:25
SYD
-
LHR
2 stops37h 35m
China Southern
Deal found 28/3$1,436
Tue 14/421:10
LHR
-
SYD
1 stop34h 40m
Etihad Airways
Tue 12/515:40
SYD
-
LHR
1 stop24h 20m
Etihad Airways
Deal found 27/3$1,438
Wed 21/1011:35
LGW
-
SYD
3 stops35h 25m
China Eastern
Wed 18/1121:30
SYD
-
LGW
1 stop44h 00m
China Eastern
Deal found 31/3$1,439
Mon 9/1121:30
LHR
-
SYD
2 stops48h 55m
China Southern
Sun 22/1122:10
SYD
-
LHR
2 stops31h 25m
China Southern
Deal found 30/3$1,439
Tue 8/911:35
LGW
-
SYD
2 stops35h 25m
Multiple Airlines
Tue 15/920:50
SYD
-
LGW
2 stops43h 40m
Multiple Airlines
Deal found 29/3$1,441

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 1 April 2026.

Round-trip from

$1,430

One-way from

$832

Popular in

December

Cheapest in

May

Average price

$1,884

Good one-way deal

$1,895 or less
Etihad Airways
  • Etihad Airways
  • 9/5-13/5
  • 2 total stops
  • 60h 30m total
  • United Kingdom to Sydney
Search Deals
8/4
  • 8/4
  • 3 total stops
  • 54h 40m total
  • United Kingdom to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($244 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($96 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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 647,157 searches. Data last updated 1 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

Mon 1/6

12:25-06:10

2 stops32h 45m

Sydney Kingsford Smith

Sun 7/6

11:25-13:15

2 stops34h 50m

$1,432

LondonSydney

LTN - SYD

LTNSYD

London Luton

Wed 13/5

21:50-16:50

2 stops34h 00m

Sydney Kingsford Smith

Wed 20/5

15:40-14:00

2 stops31h 20m

$1,564

LondonSydney

LTN - SYD

LTNSYD

London Luton

Thu 14/5

05:40-16:50

2 stops26h 10m

Sydney Kingsford Smith

Thu 21/5

20:50-23:00

2 stops35h 10m

$1,604

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sun 7/6

15:15-06:10

2 stops29h 55m

Sydney Kingsford Smith

Sun 14/6

15:40-14:35

2 stops31h 55m

$1,637

LondonSydney

LTN - SYD

LTNSYD

London Luton

Wed 10/6

14:50-06:10

2 stops30h 20m

Sydney Kingsford Smith

Fri 19/6

21:30-22:05

2 stops33h 35m

$1,686

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sun 3/5

11:50-06:10

2 stops33h 20m

Sydney Kingsford Smith

Thu 7/5

20:50-21:50

2 stops34h 00m

$1,736

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Thu 13/8

10:25-08:20

1 stop36h 55m

Sydney Kingsford Smith

Mon 31/8

20:50-07:25

1 stop43h 35m

$1,804

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sun 13/9

11:35-08:05

3 stops35h 30m

Sydney Kingsford Smith

Sun 11/10

12:00-06:40

1 stop28h 40m

$1,855

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 25/4

20:45-16:50

1 stop35h 05m

Sydney Kingsford Smith

Wed 22/7

15:40-12:45

1 stop30h 05m

$1,861

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 21/4

21:10-16:50

1 stop34h 40m

Sydney Kingsford Smith

Fri 24/7

21:30-12:45

1 stop24h 15m

$1,861

Flights are sorted by cheapest return flights first.

Deals found on 30/3

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, June is the cheapest month in which you can book a flight from United Kingdom to Sydney (average of $1,008). Flying from United Kingdom to Sydney in July is currently the most expensive (average of $1,454). 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 1 April 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Sydney as you normally would.

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 1 April 2026.
See what other customers who have flown with Cathay Pacific,Qatar Airways, andChina Southern from the United Kingdom 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.
Cathay Pacific
7.6
Good
1,239 reviews
Check prices

Comfort

7.6

Boarding

7.9

Food

7.3

Overall

7.6

Entertainment

7.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.
Cathay Pacific
7.6
Good
1,239 reviews
Cathay Pacific
7.6
Good
1,239 reviews
Check prices

Comfort

7.6

Boarding

7.9

Food

7.3

Overall

7.6

Entertainment

7.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.
Qatar Airways
7.4
Good
3,732 reviews
Cathay Pacific
7.6
Good
1,239 reviews
Check prices

Comfort

7.6

Boarding

7.9

Food

7.3

Overall

7.6

Entertainment

7.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.
China Southern
7.4
Good
146 reviews
Cathay Pacific
7.6
Good
1,239 reviews
Check prices

Comfort

7.6

Boarding

7.9

Food

7.3

Overall

7.6

Entertainment

7.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.
Etihad Airways
7.3
Good
1,432 reviews
Cathay Pacific
7.6
Good
1,239 reviews
Check prices

Comfort

7.6

Boarding

7.9

Food

7.3

Overall

7.6

Entertainment

7.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.
China Eastern
7.2
Good
200 reviews
Cathay Pacific
7.6
Good
1,239 reviews
Check prices

Comfort

7.6

Boarding

7.9

Food

7.3

Overall

7.6

Entertainment

7.8

Crew

8.1

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.

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 7.5 km from Sydney’s city centre.

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

    A quick flight from United Kingdom to Sydney can take about 35h 05m. AirAsia X provides one of the quickest options available for as low as $1,861. There are 17008 km between United Kingdom and Sydney. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with AirAsia X, which is currently one of the cheapest options available, starting at $558. Air China flights start at $664 while deals on Tianjin Airlines start at $702 one-way.

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

    The most popular flight routes from United Kingdom to Sydney are London Heathrow - Sydney Kingsford Smith, London Gatwick - Sydney Kingsford Smith and London Stansted - Sydney Kingsford Smith.

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

    Looking at all options, your cheapest flight can be booked for $1,551. While the most popular route (London Heathrow - Sydney Kingsford Smith) can be booked for $1,193 on average, our data indicates $2,644 when flying from United Kingdom to Sydney.

  • 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, June is the cheapest month in which you can book a flight from United Kingdom to Sydney (average of $1,008). Flying from United Kingdom to Sydney in July is currently the most expensive (average of $1,454). 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
Parramatta
Wollongong
Penrith
Terrigal
Katoomba
Lithgow
Manly
Bondi Beach
Coogee
Cronulla
Leura
Randwick

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 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 647,157 searches. Data last updated 1 April 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$1,039Average$1,578FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest$1,145Average$2,380FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest$1,224Average$1,595FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest$1,387Average$1,964FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Qatar AirwaysCheapest$1,463Average$2,416FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Malaysia AirlinesCheapest$1,464Average$1,973FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Turkish AirlinesCheapest$1,469Average$1,915FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Etihad AirwaysCheapest$1,497Average$2,201FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
China AirlinesCheapest$1,509Average$1,663FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Cathay PacificCheapest$1,515Average$2,131FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific 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?

Deals for United Kingdom to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Sydney?

Millions of users choose and trust Cheapflights to book the best flight deals from United Kingdom to Sydney for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from United Kingdom to Sydney with no change fees.

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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