Cheap flights from London Heathrow Airport to Sydney from £443

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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
1 Jun — 8 Jun1
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 September, booked 60 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from Heathrow to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Sydney
Explore the most affordable flight options available from Heathrow to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 May 2026.

Tue 3/1121:00
LHR
-
SYD
1 stop26h 00m
China Eastern
Thu 12/1121:30
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 28/4£764
Tue 29/1221:00
LHR
-
SYD
1 stop29h 35m
China Eastern
Sat 30/112:00
SYD
-
LHR
1 stop40h 30m
China Eastern
Deal found 27/4£765
Sun 1/1121:00
LHR
-
SYD
1 stop29h 35m
China Eastern
Sun 15/1112:00
SYD
-
LHR
1 stop40h 30m
China Eastern
Deal found 30/4£767
Sun 1/1117:15
LHR
-
SYD
2 stops29h 10m
China Southern
Tue 17/1111:25
SYD
-
LHR
1 stop42h 10m
China Southern
Deal found 30/4£768
Mon 14/921:20
LHR
-
SYD
3 stops73h 40m
China Eastern
Mon 9/1112:00
SYD
-
LHR
1 stop40h 30m
China Eastern
Deal found 27/4£770
Sun 1/1117:15
LHR
-
SYD
2 stops29h 10m
China Southern
Mon 16/1111:25
SYD
-
LHR
1 stop42h 10m
China Southern
Deal found 27/4£770
Wed 4/1121:00
LHR
-
SYD
1 stop26h 00m
China Eastern
Mon 16/1112:00
SYD
-
LHR
1 stop40h 30m
China Eastern
Deal found 28/4£771
Sun 18/1021:20
LHR
-
SYD
1 stop26h 40m
China Eastern
Sun 15/1121:30
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 1/5£774
Mon 18/521:20
LHR
-
SYD
1 stop30h 15m
China Eastern
Mon 8/620:30
SYD
-
LHR
1 stop31h 10m
China Eastern
Deal found 1/5£775
Sun 1/1121:00
LHR
-
SYD
2 stops32h 20m
Multiple Airlines
Sun 15/1121:30
SYD
-
LHR
1 stop31h 00m
Multiple Airlines
Deal found 28/4£776
Mon 2/1121:00
LHR
-
SYD
1 stop26h 00m
China Eastern
Thu 19/1121:30
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 28/4£776

Find flight deals from Heathrow to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 2 May 2026.

Round-trip from

£764

One-way from

£443

Popular in

December

Cheapest in

May

Average price

£824

Good round-trip deal

£1,070 or less

Good one-way deal

£698 or less
China Eastern
  • China Eastern
  • 2/9-3/11
  • 2 total stops
  • 57h 40m total
  • London to Sydney
9/6
  • 9/6
  • 3 total stops
  • 52h 40m total
  • London to Sydney
Highest demand for flights based on searches. 8% potential increase in price (£64 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£22 potential savings vs. average return price).
Average for round-trip flights in May 2026
Price to beat on a round-trip flight from London Heathrow to Sydney Kingsford Smith.
Price to beat on a one-way flight from London Heathrow to Sydney Kingsford Smith.

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 2 May 2026.
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 - SYD

LHRSYD

London Heathrow

Mon 14/9

21:20-08:00

3 stops73h 40m

Sydney Kingsford Smith

Mon 9/11

12:00-17:30

1 stop40h 30m

£770

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 2/9

21:20-09:00

1 stop26h 40m

Sydney Kingsford Smith

Sun 1/11

21:30-17:30

1 stop31h 00m

£818

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 18/10

21:20-10:00

1 stop26h 40m

Sydney Kingsford Smith

Thu 12/11

21:30-17:30

1 stop31h 00m

£819

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 30/6

20:50-16:50

1 stop35h 00m

Sydney Kingsford Smith

Wed 15/7

15:40-07:00

1 stop24h 20m

£943

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 15/9

14:45-16:50

1 stop41h 05m

Sydney Kingsford Smith

Sun 4/10

16:40-07:00

1 stop24h 20m

£976

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 13/9

20:50-06:10

1 stop24h 20m

Sydney Kingsford Smith

Wed 30/9

15:40-12:45

1 stop30h 05m

£976

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 17/10

21:10-11:45

1 stop28h 35m

Sydney Kingsford Smith

Thu 29/10

22:10-16:55

1 stop29h 45m

£1,014

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 12/5

21:20-08:00

3 stops49h 40m

Sydney Kingsford Smith

Tue 23/6

11:00-18:40

1 stop40h 40m

£1,100

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 5/6

08:25-09:40

2 stops40h 15m

Sydney Kingsford Smith

Tue 16/6

09:15-19:10

2 stops42h 55m

£1,101

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 29/6

18:30-19:10

2 stops39h 40m

Sydney Kingsford Smith

Sat 11/7

10:00-09:50

2 stops32h 50m

£1,220

Flights are sorted by cheapest return flights first.

Deals found on 1/5

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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
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 London Heathrow Airport to Sydney

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

The best time to book flights from London Heathrow Airport to Sydney is 27 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 £826). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of £1,316). 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?

Find hourly flight availability from Heathrow 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 2 May 2026.

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?

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 2 May 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Sydney, such as Singapore Airlines,Cathay Pacific, andChina Southern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.3

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.2

Food

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Boarding

8.3

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.2

Food

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Boarding

8.3

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.2

Food

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Boarding

8.3

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.2

Food

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Boarding

8.3

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.2

Food

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Boarding

8.3

Comfort

8.0

Crew

8.6

Entertainment

8.0

Overall

8.2

Food

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports serve London Heathrow to Sydney flights?

    London Heathrow and Sydney Kingsford Smith Airport are both the biggest airports in their respective countries and so, when using them, planning pays off. They are both very well connected with local transport, offering high speed trains, buses, taxis and ride share connections from central London or to central Sydney. If you’re short on time at departure, or travelling at peak times, it’s worth taking the Fast-Track Service through London Heathrow. It costs around £13 and is available to all passengers when booked online, at least 24h in advance. You’ll find excellent lounge and shopping facilities in Heathrow. Both airports have hotels on the airport campus.

  • Which airlines fly directly from London Heathrow to Sydney (SYD)?

    There are currently no direct flights to Sydney from Heathrow Airport, London, but there is a lot of choices on this route. For example, British Airways and Cathay Pacific both fly London Heathrow to Sydney via Hong Kong (HKG). Singapore Airlines will take you through its hub of Singapore Airport (SIN), while Virgin takes the US route to Sydney via Los Angeles (LAX). Delta Air Lines also connects you through the US, in this case San Francisco (SFO). Korean Air connects with Sydney via Incheon International Airport (ICN) in South Korea.

  • What are the stopover options between London Heathrow to Sydney?

    The number of stopovers and the length of time waiting is probably the most important consideration on this route. You can save a lot of money by taking a flight with more than one stopover but the cost then is time. For example, Lufthansa and ANA share this route via two stopovers: Frankfurt and Hong Kong. It’s generally a much cheaper flight but takes extra time - sometimes up to 54h. The stopovers on single connection flights can be lengthy too. For example, flights with British Airways via Hong Kong can have stopovers with durations of 10-19h, so make sure you check these when booking.

  • Do I need a passport or visa to fly from London Heathrow to Sydney?

    Yes, British Citizens travelling on UK passports will need to obtain a tourist eVisitor visa for Australia. This will allow you to stay in the country for up to three months. There’s no fee for this and it must be obtained online in advance from the Australian Department of Home Affairs. If you plan to stay longer than three months you can apply for a Tourist Stream visitor visa from the same source. It costs around A$145 (£80). Your passport for both visas must be valid for the dates you plan to be in the country. The visa dates begin on the date of issue.

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

    For a flight from London Heathrow to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 4.6 mi from the center of the city. Kingsford Smith is the only Sydney airport and it handles 2 inbound flights from London Heathrow per day. 29 airlines have flights to Sydney Kingsford Smith from London Heathrow on a regular basis.

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

    A quick flight from London Heathrow Airport to Sydney can take about 35h. China Eastern provides one of the quickest options available for as low as £943. There are 10568 mi between London Heathrow Airport and Sydney. This flight may include one or multiple stops.

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

    Flying on Hainan Airlines is currently your cheapest option to Sydney, with prices starting at £201. Additional return tickets that might be worth considering are offered by Air China and China Southern, with the lowest prices starting at £528 and £539, respectively. These flights start at 79% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Air China, with whom users have recently found tickets for as low as £335. However, be on the lookout for offers from Tianjin Airlines and China Southern, as they are both options that can get you from London Heathrow Airport to Sydney for a low price.

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

    While on average a flight from London Heathrow Airport to Sydney is generally £4,256, our data shows the cheapest flight currently is £616. When looking at the most popular route, (London Heathrow - Sydney Kingsford Smith), you can expect to pay £712 for that flight.

  • Where are the most common stopover locations when flying from London Heathrow Airport to Sydney?

  • What are some popular things to do or see while on a stopover in Singapore?

    Sentosa, Merlion, and Masjid Sultan are currently the most popular points of interest in Singapore at the moment. Sentosa, Merlion, and Masjid Sultan are located about 13.4 mi, 10.5 mi, and 9.8 mi, respectively from Singapore Changi. Travellers in need of a car in Singapore can hire one for about £73 per day.

  • What are some popular points of interest to see during a stopover in Abu Dhabi?

    Most Abu Dhabi visitors opt to spend their time at Emirates Palace, Yas Waterworld, and Ferrari World Abu Dhabi. Emirates Palace, Yas Waterworld and Ferrari World Abu Dhabi are located about 21.1 mi, 5.0 mi, and 4.5 mi, respectively from Abu Dhabi Zayed Intl if you are interested in checking them out. Those on a stopover in Abu Dhabi in need of a car hire can book one at Abu Dhabi Zayed Intl for about £13.

  • What are points of interest worth seeing during a stopover in New Delhi?

    New Delhi travellers tend to visit Karol Bagh, Lajpat Nagar Central Market, and Hauz Khas Market more than any other attractions. Those on a layover in New Delhi interested in visiting Karol Bagh, Lajpat Nagar Central Market, or Hauz Khas Market can do so by travelling 8.7 mi, 8.7 mi, and 6.5 mi, respectively from New Delhi Indira Gandhi Intl. Those on a stopover in New Delhi in need of a car hire can book one at New Delhi Indira Gandhi Intl for about £40.

  • Where are the least popular stopover locations for London Heathrow Airport to Sydney flights?

  • 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 £826). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of £1,316). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Heathrow to Sydney on these airlines

Choose from the following airlines for your flight from Heathrow to Sydney. Flights are based on user searches made on Cheapflights and were last updated on 2 May 2026.

Top 10 airlines flying from Heathrow to Sydney

Discover the top 10 airlines that operate flights from Heathrow 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 2 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£201Average£763FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Air ChinaCheapest£528Average£763FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£572Average£775FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest£669Average£1,392FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
SWISSCheapest£714Average£1,140FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Turkish AirlinesCheapest£715Average£960FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Air New ZealandCheapest£756Average£1,210FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
China AirlinesCheapest£764Average£874FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
EmiratesCheapest£812Average£1,053FlexibilityNo cancel feeOn-time75%
Search Emirates flights
LufthansaCheapest£812Average£938FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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 Heathrow to Sydney?

Deals for Heathrow 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 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?

Yes, we can. To see specific flights from Heathrow to Sydney with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Heathrow to Sydney flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the 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.