Cheap flights from the United Kingdom to Sydney from $679

LHR — SYD
18 Nov — 25 Nov1
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

Thu 5/1110:30 -
2 stops35h 45m
Sat 28/1111:15 -
2 stops37h 45m
Deal found 15/10$1,431
Wed 28/1017:15 -
2 stops40h 10m
Sat 14/1111:25 -
2 stops37h 35m
Deal found 15/10$1,431
Tue 27/1020:20 -
2 stops30h 00m
Wed 11/1115:10 -
1 stop26h 20m
Deal found 15/10$1,433
Thu 29/1022:00 -
1 stop28h 20m
Sat 7/1109:20 -
2 stops68h 15m
Deal found 14/10$1,433
Thu 31/1210:30 -
3 stops35h 45m
Fri 22/111:10 -
2 stops54h 20m
Deal found 15/10$1,436
Tue 27/1021:30 -
2 stops28h 50m
Tue 24/1111:25 -
2 stops42h 10m
Deal found 15/10$1,436
Mon 9/1121:30 -
2 stops47h 00m
Fri 20/1115:10 -
2 stops38h 25m
Deal found 15/10$1,437
Mon 26/1022:00 -
1 stop28h 20m
Tue 10/1115:10 -
1 stop38h 25m
Deal found 15/10$1,439
Wed 4/1110:30 -
2 stops59h 45m
Sat 23/112:00 -
1 stop29h 30m
Deal found 15/10$1,440
Tue 10/1121:30 -
2 stops28h 50m
Sat 28/1115:10 -
2 stops62h 25m
Deal found 14/10$1,441
Sat 7/1120:20 -
2 stops30h 00m
Sun 15/1115:10 -
1 stop26h 20m
Deal found 15/10$1,444
Thu 19/1121:00 -
1 stop29h 35m
Wed 25/1112:00 -
1 stop40h 30m
Deal found 19/10$1,444

Find flight deals from United Kingdom to Sydney

Round-trip from

$1,431

One-way from

$679

Popular in

December

Cheapest in

May

Average price

$1,940

Good round-trip deal

$2,362 or less
China Eastern
  • China Eastern
  • 5/11-28/11
  • 4 total stops
  • 73h 30m total
  • United Kingdom to Sydney
12/11-31/12
  • 12/11-31/12
  • 2 total stops
  • 56h 35m total
  • United Kingdom to Sydney
Highest demand for flights based on searches. 6% potential increase in price ($199 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($92 potential savings vs. average return price).
Average for round-trip flights in October 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

BirminghamSydney

BHX Birmingham - SYD Sydney Kingsford Smith

BHXSYD

Birmingham

Sun 1/11

07:15-12:10

2 stops65h 55m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$851

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Sun 1/11

17:15-13:20

2 stops33h 05m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$858

LondonSydney

LGW London Gatwick - SYD Sydney Kingsford Smith

LGWSYD

London Gatwick

Sat 21/11

20:20-20:25

2 stops37h 05m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$877

LondonSydney

LGW London Gatwick - SYD Sydney Kingsford Smith

LGWSYD

London Gatwick

Sat 21/11

10:30-09:15

3 stops35h 45m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$886

LondonSydney

LGW London Gatwick - SYD Sydney Kingsford Smith

LGWSYD

London Gatwick

Sun 1/11

17:00-13:35

1 stop33h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$921

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Thu 10/12

08:30-06:35

2 stops35h 05m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$941

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Thu 3/12

13:00-19:45

1 stop43h 45m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$946

BirminghamSydney

BHX Birmingham - SYD Sydney Kingsford Smith

BHXSYD

Birmingham

Tue 16/2

12:20-06:30

3 stops55h 10m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$973

EdinburghSydney

EDI Edinburgh Turnhouse - SYD Sydney Kingsford Smith

EDISYD

Edinburgh Turnhouse

Thu 15/4

12:40-16:50

2 stops43h 10m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$997

GlasgowSydney

GLA Glasgow Intl - SYD Sydney Kingsford Smith

GLASYD

Glasgow Intl

Tue 6/4

21:20-12:35

2 stops54h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,025

Flights are sorted by cheapest return flights first.

Deals found on 14/10

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 $1,772). Flying from United Kingdom to Sydney in December is currently the most expensive (average of $2,731). 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 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).

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 45 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,China Southern, andQatar 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.

Overall

7.5

Food

7.0

Entertainment

7.2

Crew

8.1

Comfort

7.4

Boarding

7.7

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.

Overall

7.5

Food

7.0

Entertainment

7.2

Crew

8.1

Comfort

7.4

Boarding

7.7

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.

Overall

7.5

Food

7.0

Entertainment

7.2

Crew

8.1

Comfort

7.4

Boarding

7.7

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.

Overall

7.5

Food

7.0

Entertainment

7.2

Crew

8.1

Comfort

7.4

Boarding

7.7

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.

Overall

7.5

Food

7.0

Entertainment

7.2

Crew

8.1

Comfort

7.4

Boarding

7.7

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.

Overall

7.5

Food

7.0

Entertainment

7.2

Crew

8.1

Comfort

7.4

Boarding

7.7

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 33h 35m. China Eastern provides one of the quickest options available for as low as $1,460. 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 Air China, which is currently one of the cheapest options available, starting at $510. AirAsia X flights start at $580 while deals on China Southern start at $681 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 $2,333. While the most popular route (London Heathrow - Sydney Kingsford Smith) can be booked for $1,132 on average, our data indicates $3,477 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 $1,772). Flying from United Kingdom to Sydney in December is currently the most expensive (average of $2,731). 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
China SouthernCheapest$1,227Average$1,757FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest$1,253Average$1,758FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qatar AirwaysCheapest$1,441Average$2,798FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Air IndiaCheapest$1,459Average$2,234FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest$1,488Average$1,991FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest$1,492Average$2,205FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Qantas AirwaysCheapest$1,501Average$2,135FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Singapore AirlinesCheapest$1,702Average$2,556FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
EmiratesCheapest$1,722Average$2,143FlexibilityNo cancel feeOn-time75%
Search Emirates flights
American AirlinesCheapest$1,851Average$1,984FlexibilityNo 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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