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Cheap flights from London Heathrow Airport to Sydney from £456

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 31/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
26 Feb — 5 Mar1
1 adult

The best prices from London Heathrow to Sydney Kingsford Smith are usually found in March or May, booked 90 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap 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 21 February 2025.

Round-trip from

£731

One-way from

£456

Popular in

December

Cheapest in

March

Average price

£1,002

Good round-trip deal

£1,032 or less

Good one-way deal

£897 or less
China Eastern
  • China Eastern
  • 20/3-11/6
  • 2 total stops
  • 60h 45m total
  • London to Sydney
Etihad Airways
  • Etihad Airways
  • 31/3
  • 1 total stop
  • 23h 40m total
  • London to Sydney
Highest demand for flights based on searches. 10% potential increase in price (£103 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£24 potential savings vs. average return price).
Average for round-trip flights in February 2025
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.

Find flight deals from Heathrow to Sydney

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 21 February 2025.

Thu 20/321:00LHR - SYD
1 stop29h 35mChina Eastern
Wed 11/620:30SYD - LHR
1 stop31h 10mChina Eastern
Deal found 20/2£731
Tue 18/321:30LHR - SYD
2 stops35h 50mChina Southern
Thu 3/422:15SYD - LHR
2 stops29h 50mChina Southern
Deal found 20/2£733
Wed 12/309:00LHR - SYD
1 stop22h 35mMultiple Airlines
Fri 14/316:50SYD - LHR
1 stop37h 10mMultiple Airlines
Deal found 19/2£735
Mon 3/319:20LHR - SYD
1 stop24h 05mEtihad Airways
Tue 18/307:30SYD - LHR
2 stops34h 15mEtihad Airways
Deal found 20/2£737
Fri 9/520:25LHR - SYD
1 stop33h 25mAir China
Sat 31/519:40SYD - LHR
1 stop33h 50mAir China
Deal found 20/2£742
Tue 4/317:45LHR - SYD
2 stops38h 20mTurkish Airlines
Tue 25/321:00SYD - LHR
2 stops28h 55mTurkish Airlines
Deal found 20/2£764
Sat 1/321:00LHR - SYD
1 stop30h 50mTianjin Airlines
Fri 7/316:50SYD - LHR
1 stop37h 10mTianjin Airlines
Deal found 20/2£785
Sat 1/320:15LHR - SYD
1 stop26h 20mCathay Pacific
Sat 8/311:05SYD - LHR
1 stop30h 55mCathay Pacific
Deal found 20/2£835
Fri 26/1221:15LHR - SYD
1 stop27h 55mChina Airlines
Sun 18/122:10SYD - LHR
1 stop29h 45mChina Airlines
Deal found 20/2£841

Find flights from Heathrow to Sydney within your budget

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 21 February 2025.

Fly from

Heathrow

Fly to

Sydney

Route

Depart

Return

Price

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 20/3

21:00-13:35

1 stop29h 35m

Sydney Kingsford Smith

Wed 11/6

20:30-18:40

1 stop31h 10m

£731

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 18/3

21:30-20:20

2 stops35h 50m

Sydney Kingsford Smith

Thu 3/4

22:15-18:05

2 stops29h 50m

£733

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 12/3

09:00-18:35

1 stop22h 35m

Sydney Kingsford Smith

Fri 14/3

16:50-19:00

1 stop37h 10m

£735

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 3/3

19:20-06:25

1 stop24h 05m

Sydney Kingsford Smith

Tue 18/3

07:30-06:45

2 stops34h 15m

£737

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 9/5

20:25-14:50

1 stop33h 25m

Sydney Kingsford Smith

Sat 31/5

19:40-20:30

1 stop33h 50m

£742

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 4/3

17:45-19:05

2 stops38h 20m

Sydney Kingsford Smith

Tue 25/3

21:00-14:55

2 stops28h 55m

£764

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 31/3

09:30-19:10

1 stop23h 40m

£456

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 18/4

22:10-19:40

1 stop36h 30m

£459

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 22/3

21:00-14:50

1 stop30h 50m

£462

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 13/5

11:25-16:45

1 stop44h 20m

£468

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 27 results
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2
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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.

Travel insights for flights from Heathrow to Sydney

Get recent, data-driven insights about flights from Heathrow to Sydney including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Sydney. Price data was last updated on 14 February 2025.

The best time to book flights from London Heathrow Airport to Sydney is 90 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 £985). Flying from London Heathrow Airport to Sydney in July is currently the most expensive (average of £1,728). 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 21 February 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 24% on flights from London Heathrow Airport to Sydney by exploring options for tickets in the afternoon.

What is the cheapest day to fly from London Heathrow Airport to Sydney?

Use this chart to determine the cheapest time to fly return from Heathrow to Sydney. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Sydney flight should consider departing on Monday afternoons when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London Heathrow Airport to Sydney

Explore weekly flight availability from Heathrow to Sydney. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 21 February 2025.

The most flights from LHR 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).

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

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 21 February 2025.
Get a feel of what it's like to fly with Singapore Airlines, KLM and Vietnam Airlines from London to Sydney by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.7

Overall

8.1

Crew

8.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.7

Overall

8.1

Crew

8.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.7

Overall

8.1

Crew

8.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.7

Overall

8.1

Crew

8.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.7

Overall

8.1

Crew

8.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.7

Overall

8.1

Crew

8.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

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 3 inbound flights from London Heathrow per day. 30 airlines have flights to Sydney Kingsford Smith from London Heathrow on a regular basis.

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

    Flying on China Eastern is currently your cheapest option to Sydney, with prices starting at £731. Additional return tickets that might be worth considering are offered by China Southern and Etihad Airways, with the lowest prices starting at £733 and £737, respectively. These flights start at 31% 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 Etihad Airways, with whom users have recently found tickets for as low as £456. However, be on the lookout for offers from China Southern and Tianjin Airlines, 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 £4,374, our data shows the cheapest flight currently is £842. When looking at the most popular route, (London Heathrow - Sydney Kingsford Smith), you can expect to pay £520 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 Universal Studios Singapore are currently the most popular points of interest in Singapore at the moment. Sentosa, Merlion, and Universal Studios Singapore are located about 13.4 mi, 10.5 mi, and 13.4 mi, respectively from Singapore Changi. Travellers in need of a car in Singapore can hire one for about £113 per day.

  • What are some popular points of interest to see during a stopover in Hong Kong?

    Most Hong Kong visitors opt to spend their time at Hong Kong Disneyland, Shatin Baptist Church, and Mid-levels Escalators. Hong Kong Disneyland, Shatin Baptist Church and Mid-levels Escalators are located about 7.8 mi, 18.3 mi, and 15.2 mi, respectively from Hong Kong Intl if you are interested in checking them out.

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

    Guangzhou travellers tend to visit Baima Clothing Wholesale Market, Yide Lu, and Guangzhou Zoo more than any other attractions. Those on a layover in Guangzhou interested in visiting Baima Clothing Wholesale Market, Yide Lu, or Guangzhou Zoo can do so by travelling 17.3 mi, 19.5 mi, and 17.2 mi, respectively from Guangzhou Baiyun.

  • 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 £985). Flying from London Heathrow Airport to Sydney in July is currently the most expensive (average of £1,728). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Bondi Beach
Coogee
Manly

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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 21 February 2025.

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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£374Average£1,663FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
SWISSCheapest£662Average£845FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air IndiaCheapest£740Average£988FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Turkish AirlinesCheapest£759Average£1,099FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
LufthansaCheapest£766Average£998FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Austrian AirlinesCheapest£790Average£918FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Vietnam AirlinesCheapest£813Average£1,178FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Air FranceCheapest£883Average£1,234FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£969Average£1,092FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£996Average£1,119FlexibilityNo cancel feeOn-time71%
Search American Airlines 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.

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