Cheap flights from London Heathrow Airport to Sydney from $852

LHR — SYD
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Sydney Kingsford Smith are usually found in May or June, booked 28 days in advance, depart on a Wednesday or Monday and return on a Sunday

Cheap flight deals from Heathrow to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Sydney

Mon 16/1121:30 -
2 stops35h 55m
Tue 16/208:10 -
2 stops40h 50m
Deal found 27/10$1,438
Sun 8/1112:30 -
1 stop35h 05m
Sun 29/1122:30 -
1 stop31h 50m
Deal found 27/10$1,439
Sun 1/1112:30 -
1 stop35h 05m
Sun 22/1122:30 -
1 stop33h 00m
Deal found 26/10$1,441
Wed 11/1121:00 -
1 stop29h 35m
Wed 25/1111:10 -
2 stops65h 20m
Deal found 27/10$1,442
Sun 1/1112:30 -
1 stop35h 05m
Fri 13/1111:25 -
1 stop42h 10m
Deal found 26/10$1,443
Sun 1/1117:15 -
2 stops33h 05m
Sun 6/1215:10 -
1 stop38h 25m
Deal found 27/10$1,445
Wed 30/1217:15 -
2 stops33h 05m
Mon 18/115:10 -
1 stop38h 25m
Deal found 25/10$1,446
Thu 12/1121:30 -
2 stops28h 50m
Wed 18/1111:25 -
1 stop42h 10m
Deal found 26/10$1,448
Mon 16/1121:00 -
2 stops49h 15m
Thu 3/1212:00 -
1 stop40h 30m
Deal found 25/10$1,449
Sun 1/1108:45 -
1 stop24h 00m
Sun 15/1122:30 -
1 stop33h 00m
Deal found 27/10$1,451
Sun 22/1117:15 -
2 stops33h 05m
Mon 7/1211:25 -
2 stops42h 10m
Deal found 29/10$1,452
Wed 11/1117:15 -
2 stops33h 05m
Fri 20/1122:05 -
2 stops50h 55m
Deal found 29/10$1,453

Find flight deals from Heathrow to Sydney

Round-trip from

$1,438

One-way from

$852

Popular in

December

Cheapest in

May

Average price

$1,953

Good round-trip deal

$2,342 or less
China Southern
  • China Southern
  • 16/11-16/2
  • 4 total stops
  • 76h 45m total
  • London to Sydney
China Southern
  • China Southern
  • 3/3-31/12
  • 2 total stops
  • 29h 10m total
  • London to Sydney
Highest demand for flights based on searches. 7% potential increase in price ($223 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($82 potential savings vs. average return price).
Average for round-trip flights in October 2026
Price to beat on a round-trip flight from London Heathrow to Sydney Kingsford Smith.

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Heathrow Airport to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Sat 14/11

15:30-06:50

1 stop28h 20m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,205

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Fri 20/11

19:20-06:30

1 stop24h 10m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,250

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Tue 26/1

08:40-06:30

1 stop34h 50m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,263

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Mon 11/1

18:45-19:20

1 stop37h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,409

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Sat 9/1

21:10-13:40

1 stop29h 30m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,426

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Sun 15/11

09:25-22:25

2 stops26h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,426

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Fri 6/11

09:25-08:55

2 stops36h 30m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,431
Fastest return journey

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Fri 1/1

09:25-19:20

1 stop22h 55m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,459

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Fri 1/1

09:25-08:25

2 stops36h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,469

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Sat 7/11

06:25-19:25

2 stops26h 00m

Sydney Kingsford Smith

Sun 15/11

21:35-14:55

2 stops28h 20m

$1,860

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from Heathrow to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Heathrow with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Sydney

How far ahead should I book a flight from London Heathrow Airport to Sydney?

Booking 27 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London Heathrow Airport to Sydney?

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Sydney (average of $1,738). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $2,699). 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 LHR to SYD?

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

How much does it cost for a return flight from London Heathrow Airport to Sydney?

Airfare is below average for this route at the moment.

London Heathrow Airport to Sydney flights typically cost between $1,588 and $2,145 in November.
The cheapest return price found within the last 5 days was $1,438 on China Southern (16 Nov–16 Feb).

Reviews of airlines servicing Sydney

Get a feel of what it's like to fly with Singapore Airlines,Qantas Airways, andChina Southern from London Heathrow Airport to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Food

7.8

Overall

8.2

Entertainment

8.1

Boarding

8.3

Crew

8.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.

Comfort

8.0

Food

7.8

Overall

8.2

Entertainment

8.1

Boarding

8.3

Crew

8.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.

Comfort

8.0

Food

7.8

Overall

8.2

Entertainment

8.1

Boarding

8.3

Crew

8.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.

Comfort

8.0

Food

7.8

Overall

8.2

Entertainment

8.1

Boarding

8.3

Crew

8.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.

Comfort

8.0

Food

7.8

Overall

8.2

Entertainment

8.1

Boarding

8.3

Crew

8.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.

Comfort

8.0

Food

7.8

Overall

8.2

Entertainment

8.1

Boarding

8.3

Crew

8.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.

Related info for your journey

  • What airport do you fly into for flights to Sydney from London Heathrow?

    Located just 7.5 km from the city centre, Sydney Kingsford Smith is the airport most travellers will use when flying to Sydney from London Heathrow. Booking flights from London Heathrow to Kingsford Smith (SYD) should be relatively easy as there are 3 daily inbound flights from London Heathrow from 12 different airlines.

  • How long is the flight from London Heathrow Airport to Sydney?

    Departing from London Heathrow Airport to Sydney will take you 26h. There are 17008 km between London Heathrow Airport and Sydney. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Sydney round-trip?

    China Eastern, at $1,243, was found to be the cheapest airline from London Heathrow Airport to Sydney.Alternate airlines to your destination round-trip include China Southern and Qatar Airways. China Eastern is 39% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from London Heathrow Airport to Sydney one-way?

    For one-way options, check prices for Air China. According to our data, you can fly for as low as $506. Users have also found prices from $679 and $699 on Tianjin Airlines and China Eastern, respectively.

  • What are the cheapest flights from London Heathrow Airport to Sydney?

    Looking for the cheapest flight from London Heathrow Airport to Sydney? While on average our users pay $2,565, our data indicates the cheapest price to be $2,313. The most popular route (London Heathrow - Sydney Kingsford Smith), is priced around $1,183.

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

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

  • How can I find direct flights from Heathrow to Sydney?

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 London Heathrow Airport to Sydney?

    Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Sydney (average of $1,738). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $2,699). 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
Cronulla
Lithgow
Terrigal
Katoomba
Randwick
Leura
Bondi Beach
Coogee

Browse thousands of different options on Cheapflights for your next trip

Fly from Heathrow to Sydney on these airlines

Top 10 airlines flying from Heathrow to Sydney

AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$1,243Average$2,009FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest$1,379Average$1,561FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Qatar AirwaysCheapest$1,429Average$2,584FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Air IndiaCheapest$1,447Average$2,215FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest$1,476Average$1,928FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest$1,479Average$2,026FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Qantas AirwaysCheapest$1,488Average$1,888FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Singapore AirlinesCheapest$1,687Average$2,534FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
EmiratesCheapest$1,707Average$1,991FlexibilityNo cancel feeOn-time75%
Search Emirates flights
American AirlinesCheapest$1,836Average$1,956FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to Sydney?

Cheapflights helps you search for flights from Heathrow to Sydney via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Heathrow 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 Heathrow to Sydney.

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

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

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

Of course! You can now track prices for flights from Heathrow to Sydney and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.