Cheap flights from the United Kingdom to Sydney from $683

LHR — SYD
21 Oct — 28 Oct1
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

Mon 2/1111:10 -
2 stops33h 55m
Sun 15/1110:30 -
2 stops44h 50m
Deal found 19/9$1,096
Tue 13/1021:00 -
2 stops37h 25m
Mon 2/1115:15 -
2 stops38h 20m
Deal found 19/9$1,397
Wed 23/911:35 -
3 stops35h 25m
Wed 30/910:05 -
2 stops37h 55m
Deal found 18/9$1,399
Thu 5/1122:00 -
1 stop35h 25m
Thu 12/1115:10 -
2 stops37h 45m
Deal found 20/9$1,399
Wed 28/1022:00 -
1 stop28h 35m
Sat 14/1115:15 -
1 stop38h 20m
Deal found 18/9$1,400
Mon 12/1011:35 -
3 stops35h 25m
Wed 14/1011:05 -
2 stops37h 55m
Deal found 20/9$1,402
Tue 20/1021:20 -
3 stops49h 40m
Tue 27/1012:00 -
1 stop40h 30m
Deal found 18/9$1,402
Wed 21/1021:20 -
2 stops49h 40m
Wed 28/1011:10 -
3 stops41h 20m
Deal found 20/9$1,403
Thu 24/909:45 -
1 stop24h 20m
Mon 28/920:35 -
1 stop32h 25m
Deal found 18/9$1,404
Tue 13/1021:30 -
2 stops29h 55m
Wed 21/1011:05 -
1 stop29h 25m
Deal found 19/9$1,407
Wed 4/1121:30 -
2 stops29h 05m
Sun 15/1115:15 -
1 stop38h 20m
Deal found 17/9$1,407
Mon 26/1017:00 -
1 stop30h 00m
Thu 3/1221:30 -
1 stop27h 30m
Deal found 20/9$1,409

Find flight deals from United Kingdom to Sydney

Round-trip from

$1,096

One-way from

$683

Popular in

December

Cheapest in

May

Average price

$1,821

Good round-trip deal

$2,928 or less
2/11-15/11
  • 2/11-15/11
  • 4 total stops
  • 78h 45m total
  • United Kingdom to Sydney
3/11-31/12
  • 3/11-31/12
  • 2 total stops
  • 57h 40m total
  • United Kingdom to Sydney
Highest demand for flights based on searches. 7% potential increase in price ($208 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($95 potential savings vs. average return price).
Average for round-trip flights in September 2026
Price to beat on a round-trip flight from United Kingdom to Sydney Kingsford Smith.

Cheapflights Fare Finder

 
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

Newcastle upon TyneSydney

NCL Newcastle upon Tyne - SYD Sydney Kingsford Smith

NCLSYD

Newcastle upon Tyne

Mon 14/12

19:45-06:35

2 stops47h 50m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$746

BirminghamSydney

BHX Birmingham - SYD Sydney Kingsford Smith

BHXSYD

Birmingham

Mon 19/10

19:45-20:25

2 stops38h 40m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$784

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Tue 3/11

15:45-20:20

3 stops41h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$818

BirminghamSydney

BHX Birmingham - SYD Sydney Kingsford Smith

BHXSYD

Birmingham

Tue 20/10

09:45-06:55

3 stops59h 10m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$824

LondonSydney

STN London Stansted - SYD Sydney Kingsford Smith

STNSYD

London Stansted

Sun 18/10

00:50-20:35

2 stops57h 45m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$835

LondonSydney

STN London Stansted - SYD Sydney Kingsford Smith

STNSYD

London Stansted

Fri 12/3

19:15-18:50

3 stops36h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$843

LondonSydney

LGW London Gatwick - SYD Sydney Kingsford Smith

LGWSYD

London Gatwick

Mon 19/10

13:50-06:55

3 stops55h 05m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$857

Newcastle upon TyneSydney

NCL Newcastle upon Tyne - SYD Sydney Kingsford Smith

NCLSYD

Newcastle upon Tyne

Sat 31/10

13:05-18:50

3 stops42h 45m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$859

LondonSydney

LGW London Gatwick - SYD Sydney Kingsford Smith

LGWSYD

London Gatwick

Mon 19/10

18:00-10:00

1 stop30h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,052

ManchesterSydney

MAN Manchester - SYD Sydney Kingsford Smith

MANSYD

Manchester

Wed 25/11

21:30-19:20

1 stop34h 50m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,108

Flights are sorted by cheapest return flights first.

Deals found on 20/9

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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 $1,719). Flying from United Kingdom to Sydney in December is currently the most expensive (average of $2,687). 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?

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.

Weekly flight availability from United Kingdom to Sydney

The most flights from GB0 to SYD are scheduled on a Friday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

How far ahead should I book a flight from United Kingdom to Sydney?

The price you pay for your flight from United Kingdom to Sydney may vary depending on when you book. For the best chance of a lower fare, look to book 29 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Sydney

See what other customers who have flown with Qantas Airways,Qatar Airways, andEtihad Airways 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.

Crew

8.1

Overall

7.5

Boarding

7.7

Comfort

7.4

Entertainment

7.2

Food

7.0

Reviews

1 / 20
4.0
Okay

Robyn,Aug 2026

LAX - SYD

I was flabbergasted when the crew completely missed me in the distribution of food and drinks in Business Class - even after they looked twice at my opened table. However - this has happened to me on my last longhaul QF flight and with the same hosty (older woman with curly bob). She obviously cannot handly the stress of initial boarding as both times she has come back to me with an apology. When compared to our usual Business/ First longhauls with Qatar or Emirates, Qantas leave ALOT to be desired. I would highly recommend going with another airline. BTW I'm a 4th gen Aussie and previous Qantas employee - I would love to love them if they provided service but they just dont.

Crew

8.1

Overall

7.5

Boarding

7.7

Comfort

7.4

Entertainment

7.2

Food

7.0

Reviews

1 / 20
4.0
Okay

Robyn,Aug 2026

LAX - SYD

I was flabbergasted when the crew completely missed me in the distribution of food and drinks in Business Class - even after they looked twice at my opened table. However - this has happened to me on my last longhaul QF flight and with the same hosty (older woman with curly bob). She obviously cannot handly the stress of initial boarding as both times she has come back to me with an apology. When compared to our usual Business/ First longhauls with Qatar or Emirates, Qantas leave ALOT to be desired. I would highly recommend going with another airline. BTW I'm a 4th gen Aussie and previous Qantas employee - I would love to love them if they provided service but they just dont.

Crew

8.1

Overall

7.5

Boarding

7.7

Comfort

7.4

Entertainment

7.2

Food

7.0

Reviews

1 / 20
4.0
Okay

Robyn,Aug 2026

LAX - SYD

I was flabbergasted when the crew completely missed me in the distribution of food and drinks in Business Class - even after they looked twice at my opened table. However - this has happened to me on my last longhaul QF flight and with the same hosty (older woman with curly bob). She obviously cannot handly the stress of initial boarding as both times she has come back to me with an apology. When compared to our usual Business/ First longhauls with Qatar or Emirates, Qantas leave ALOT to be desired. I would highly recommend going with another airline. BTW I'm a 4th gen Aussie and previous Qantas employee - I would love to love them if they provided service but they just dont.

Crew

8.1

Overall

7.5

Boarding

7.7

Comfort

7.4

Entertainment

7.2

Food

7.0

Reviews

1 / 20
4.0
Okay

Robyn,Aug 2026

LAX - SYD

I was flabbergasted when the crew completely missed me in the distribution of food and drinks in Business Class - even after they looked twice at my opened table. However - this has happened to me on my last longhaul QF flight and with the same hosty (older woman with curly bob). She obviously cannot handly the stress of initial boarding as both times she has come back to me with an apology. When compared to our usual Business/ First longhauls with Qatar or Emirates, Qantas leave ALOT to be desired. I would highly recommend going with another airline. BTW I'm a 4th gen Aussie and previous Qantas employee - I would love to love them if they provided service but they just dont.

Crew

8.1

Overall

7.5

Boarding

7.7

Comfort

7.4

Entertainment

7.2

Food

7.0

Reviews

1 / 20
4.0
Okay

Robyn,Aug 2026

LAX - SYD

I was flabbergasted when the crew completely missed me in the distribution of food and drinks in Business Class - even after they looked twice at my opened table. However - this has happened to me on my last longhaul QF flight and with the same hosty (older woman with curly bob). She obviously cannot handly the stress of initial boarding as both times she has come back to me with an apology. When compared to our usual Business/ First longhauls with Qatar or Emirates, Qantas leave ALOT to be desired. I would highly recommend going with another airline. BTW I'm a 4th gen Aussie and previous Qantas employee - I would love to love them if they provided service but they just dont.

Crew

8.1

Overall

7.5

Boarding

7.7

Comfort

7.4

Entertainment

7.2

Food

7.0

Reviews

1 / 20
4.0
Okay

Robyn,Aug 2026

LAX - SYD

I was flabbergasted when the crew completely missed me in the distribution of food and drinks in Business Class - even after they looked twice at my opened table. However - this has happened to me on my last longhaul QF flight and with the same hosty (older woman with curly bob). She obviously cannot handly the stress of initial boarding as both times she has come back to me with an apology. When compared to our usual Business/ First longhauls with Qatar or Emirates, Qantas leave ALOT to be desired. I would highly recommend going with another airline. BTW I'm a 4th gen Aussie and previous Qantas employee - I would love to love them if they provided service but they just dont.

Related info for your journey

  • 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 21h 25m. China Southern provides one of the quickest options available for as low as $1,705. There are 16943 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 Air China, which is currently one of the cheapest options available, starting at $500. AirAsia X flights start at $568 while deals on China Southern start at $667 one-way.

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

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

    Looking at all options, your cheapest flight can be booked for $2,235. While the most popular route (London Heathrow - Sydney Kingsford Smith) can be booked for $1,181 on average, our data indicates $3,332 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, May is the cheapest month in which you can book a flight from United Kingdom to Sydney (average of $1,719). Flying from United Kingdom to Sydney in December is currently the most expensive (average of $2,687). 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
Manly
Lithgow
Cronulla
Terrigal
Katoomba
Randwick
Leura
Bondi Beach
Coogee

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from United Kingdom to Sydney

AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$1,167Average$1,919FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
China SouthernCheapest$1,202Average$1,886FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest$1,243Average$1,454FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qatar AirwaysCheapest$1,411Average$2,762FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Etihad AirwaysCheapest$1,458Average$2,003FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest$1,461Average$2,137FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Qantas AirwaysCheapest$1,475Average$2,116FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Singapore AirlinesCheapest$1,666Average$2,427FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
EmiratesCheapest$1,686Average$2,098FlexibilityNo cancel feeOn-time75%
Search Emirates flights
American AirlinesCheapest$1,813Average$1,942FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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.

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

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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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