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

Currently priced at $1,008, China Eastern will fly you from London Heathrow Airport to Sydney and back. In addition to China Eastern, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on China Southern for as low as $1,015. These flights start at 23% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

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 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

What are the most popular airlines that fly from London Heathrow Airport to Sydney?

Before booking your flight from London Heathrow Airport to Sydney check out the most popular airlines for this route: British Airways, Air China or Cathay Pacific.

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

Leaving on a Saturday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 15% on the overall cost on flights from London Heathrow Airport to Sydney.

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

Users have found that booking a flight from London Heathrow Airport to Sydney at least 37 days early can save you up to 15% on average compared to booking a flight this week. If booking 37 days before your flight isn’t an option for you, users have found flights from London Heathrow Airport to Sydney for as little as $1,273 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,520 for flights departing within the next 3 days.

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

Flights from London Heathrow Airport to Sydney lean towards being more expensive in December. Prices are generally better when you fly from London Heathrow Airport to Sydney in May, with the cheapest ticket starting at $710.

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

Sydney Kingsford Smith (SYD) is the airport you will fly into if you book a flight from London Heathrow to Sydney. You should not have trouble finding flights to Kingsford Smith from London Heathrow; the airport handles an average of 3 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 10 airlines have flights to the Sydney airport from London Heathrow. It is only a 4.6 mi journey from Kingsford Smith (SYD) to Sydney’s city center.

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 vacation 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.

$604+ Flights from London Heathrow Airport to Sydney

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Heathrow to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: 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 Tuesday or Monday and return on a Monday

Cheap flight deals from Heathrow to Sydney

Round-trip from	$1,008 (Gotogate)
One-way from	$604 (Kiwi.com)
Popular in	December
Cheapest in	March
Average price	$1,453

From London Heathrow to Sydney Kingsford Smith

Search Deals

One-way flight from London Heathrow to Sydney Kingsford Smith

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($161 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($38 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

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 August 13, 2025.

Mon 9/19:20 pmLHR - SYD

1 stop30h 15mChina Eastern

Sun 9/148:30 pmSYD - LHR

1 stop31h 10mChina Eastern

Deal found 8/11

$1,008

Sun 11/25:15 pmLHR - SYD

2 stops29h 10mChina Southern

Thu 11/610:00 pmSYD - LHR

2 stops30h 55mChina Southern

Deal found 8/12

$1,015

Wed 10/1510:10 pmLHR - SYD

1 stop36h 15mChina Southern

Sun 10/1911:15 amSYD - LHR

1 stop41h 45mChina Southern

Deal found 8/10

$1,016

Tue 9/1610:15 pmLHR - SYD

1 stop27h 35mCathay Pacific

Mon 10/63:05 pmSYD - LHR

1 stop37h 10mCathay Pacific

Deal found 8/11

$1,017

Wed 12/245:40 pmLHR - SYD

1 stop34h 50mAir China

Tue 2/38:40 pmSYD - LHR

1 stop32h 10mAir China

Deal found 8/11

$1,018

Thu 9/1110:10 pmLHR - SYD

1 stop36h 15mChina Southern

Thu 9/189:45 pmSYD - LHR

2 stops53h 20mChina Southern

Deal found 8/13

$1,026

Mon 8/2510:10 pmLHR - SYD

1 stop25h 15mChina Southern

Sun 8/3110:15 amSYD - LHR

2 stops64h 50mChina Southern

Deal found 8/12

$1,027

Thu 9/119:00 pmLHR - SYD

2 stops37h 25mChina Southern

Fri 9/1910:15 amSYD - LHR

2 stops40h 50mChina Southern

Deal found 8/13

$1,033

Fri 9/129:00 pmLHR - SYD

2 stops48h 25mChina Southern

Fri 9/1910:15 amSYD - LHR

2 stops40h 50mChina Southern

Deal found 8/12

$1,034

Tue 10/2810:00 pmLHR - SYD

1 stop35h 20mChina Southern

Wed 12/310:00 pmSYD - LHR

1 stop31h 15mChina Southern

Deal found 8/11

$1,040

Tue 9/210:10 pmLHR - SYD

1 stop36h 15mChina Southern

Tue 9/2310:15 amSYD - LHR

1 stop41h 45mChina Southern

Deal found 8/10

$1,049

Wed 9/310:10 pmLHR - SYD

1 stop36h 15mChina Southern

Tue 9/2310:15 amSYD - LHR

1 stop41h 45mChina Southern

Deal found 8/10

$1,055

Best flights from Heathrow to Sydney
Discover carefully curated flight deals from Heathrow to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 13, 2025.

Wed 9/108:10 pmLHR - SYD

1 stop29h 40mCathay Pacific

Wed 11/193:15 pmSYD - LHR

1 stop26h 05mCathay Pacific

Deal found 8/11

$1,138

Wed 2/47:20 amLHR - SYD

2 stops26h 30mMultiple Airlines

Wed 3/48:45 amSYD - LHR

1 stop32h 35mMultiple Airlines

Deal found 8/12

$1,172

Fri 11/79:15 pmLHR - SYD

1 stop28h 00mChina Airlines

Tue 12/910:10 pmSYD - LHR

1 stop29h 45mChina Airlines

Deal found 8/13

$1,173

Fri 11/710:25 amLHR - SYD

1 stop36h 55mMalaysia Airlines

Wed 11/1910:15 pmSYD - LHR

1 stop28h 10mMalaysia Airlines

Deal found 8/13

$1,217

Fri 2/610:05 amLHR - SYD

1 stop36h 10mUnited Airlines

Thu 2/2611:50 amSYD - LHR

1 stop30h 40mUnited Airlines

Deal found 8/11

$1,287

Wed 11/59:15 pmLHR - SYD

1 stop28h 00mChina Airlines

Tue 12/910:10 pmSYD - LHR

1 stop29h 45mChina Airlines

Deal found 8/13

$1,173

Sat 10/258:10 pmLHR - SYD

1 stop29h 50mCathay Pacific

Tue 11/188:25 amSYD - LHR

2 stops41h 35mCathay Pacific

Deal found 8/11

$1,185

Tue 9/238:00 amLHR - SYD

2 stops27h 10mMultiple Airlines

Sun 10/263:15 pmSYD - LHR

2 stops31h 55mMultiple Airlines

Deal found 8/12

$1,237

Sun 9/1411:00 amLHR - SYD

1 stop34h 35mMalaysia Airlines

Sun 11/210:15 pmSYD - LHR

1 stop28h 10mMalaysia Airlines

Deal found 8/12

$1,248

Fri 10/319:15 pmLHR - SYD

1 stop28h 00mChina Airlines

Tue 12/910:10 pmSYD - LHR

1 stop29h 45mChina Airlines

Deal found 8/13

$1,173

Mon 9/151:05 pmLHR - SYD

2 stops32h 50mUnited Airlines

Wed 9/2410:20 amSYD - LHR

2 stops29h 00mUnited Airlines

Deal found 8/12

$1,292

Mon 11/35:50 pmLHR - SYD

2 stops26h 35mMultiple Airlines

Mon 11/243:55 pmSYD - LHR

2 stops27h 10mMultiple Airlines

Deal found 8/11

$1,267

Last-minute flights from Heathrow to Sydney
Discover last-minute flight deals from Heathrow to Sydney. Data last updated August 13, 2025 and is based on user searches.

Mon 8/189:20 pmLHR - SYD

1 stop30h 15mMultiple Airlines

Tue 8/269:00 pmSYD - LHR

1 stop31h 30mMultiple Airlines

Deal found 8/12

$1,315

Mon 8/189:20 pmLHR - SYD

1 stop26h 40mMultiple Airlines

Sun 8/246:00 amSYD - LHR

2 stops44h 45mMultiple Airlines

Deal found 8/13

$1,463

Tue 8/1910:15 pmLHR - SYD

2 stops36h 15mMultiple Airlines

Thu 8/2811:00 amSYD - LHR

1 stop40h 40mMultiple Airlines

Deal found 8/13

$1,472

Wed 8/208:35 pmLHR - SYD

1 stop37h 05mMultiple Airlines

Tue 8/269:00 pmSYD - LHR

1 stop31h 30mMultiple Airlines

Deal found 8/11

$1,427

Thu 8/217:10 pmLHR - SYD

1 stop27h 10mMultiple Airlines

Tue 8/263:10 pmSYD - LHR

2 stops38h 20mMultiple Airlines

Deal found 8/13

$1,384

Thu 8/217:10 pmLHR - SYD

1 stop27h 10mMultiple Airlines

Sun 8/246:00 amSYD - LHR

2 stops44h 45mMultiple Airlines

Deal found 8/13

$1,401

Fri 8/221:15 pmLHR - SYD

1 stop44h 25mMultiple Airlines

Mon 9/111:00 amSYD - LHR

1 stop40h 40mMultiple Airlines

Deal found 8/12

$1,306

Fri 8/226:10 pmLHR - SYD

2 stops29h 05mFinnair

Mon 9/2212:45 pmSYD - LHR

2 stops32h 25mFinnair

Deal found 8/11

$1,475

Sat 8/239:55 pmLHR - SYD

2 stops39h 25mQatar Airways

Sun 9/282:50 pmSYD - LHR

1 stop32h 15mQatar Airways

Deal found 8/11

$1,439

Mon 8/2510:10 pmLHR - SYD

1 stop25h 15mChina Southern

Sun 8/3110:15 amSYD - LHR

2 stops64h 50mChina Southern

Deal found 8/12

$1,027

Sun 8/3110:05 pmLHR - SYD

2 stops51h 05mMultiple Airlines

Mon 9/229:30 pmSYD - LHR

1 stop26h 45mMultiple Airlines

Deal found 8/10

$1,079

Mon 9/19:20 pmLHR - SYD

1 stop30h 15mChina Eastern

Sun 9/148:30 pmSYD - LHR

1 stop31h 10mChina Eastern

Deal found 8/11

$1,008

One-way flights from Heathrow to Sydney
Search for one-way flight options from Heathrow to Sydney. Find affordable one-way fares based on user searches. Data last updated August 13, 2025.

Tue 8/2610:15 pmLHR - SYD

2 stops36h 15mMultiple Airlines

Deal found 8/11

$604

Fri 8/299:45 amLHR - SYD

3 stops37h 05mMultiple Airlines

Deal found 8/11

$616

Sat 9/1310:10 pmLHR - SYD

2 stops52h 25mMultiple Airlines

Deal found 8/13

$617

Mon 9/1510:05 pmLHR - SYD

2 stops52h 30mMultiple Airlines

Deal found 8/13

$621

Mon 8/254:10 pmLHR - SYD

2 stops32h 10mMultiple Airlines

Deal found 8/11

$631

Thu 8/211:00 pmLHR - SYD

2 stops35h 20mMultiple Airlines

Deal found 8/11

$633

Tue 8/1910:15 pmLHR - SYD

2 stops36h 15mMultiple Airlines

Deal found 8/13

$634

Fri 10/319:10 pmLHR - SYD

3 stops52h 55mMultiple Airlines

Deal found 8/11

$635

Wed 9/171:15 pmLHR - SYD

3 stops37h 20mMultiple Airlines

Deal found 8/11

$636

Sun 9/2810:05 pmLHR - SYD

2 stops48h 15mMultiple Airlines

Deal found 8/13

$638

Wed 9/2410:05 pmLHR - SYD

2 stops48h 15mMultiple Airlines

Deal found 8/13

$639

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

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 9/10

8:10 pm-10:50 am

1 stop29h 40m

Sydney Kingsford Smith

Wed 11/19

3:15 pm-6:20 am

1 stop26h 05m

$1,138

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 2/4

7:20 am-8:50 pm

2 stops26h 30m

Sydney Kingsford Smith

Wed 3/4

8:45 am-6:20 am

1 stop32h 35m

$1,172

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 11/7

9:15 pm-12:15 pm

1 stop28h 00m

Sydney Kingsford Smith

Tue 12/9

10:10 pm-4:55 pm

1 stop29h 45m

$1,173

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 11/5

9:15 pm-12:15 pm

1 stop28h 00m

Sydney Kingsford Smith

Tue 12/9

10:10 pm-4:55 pm

1 stop29h 45m

$1,173

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 10/31

9:15 pm-12:15 pm

1 stop28h 00m

Sydney Kingsford Smith

Tue 12/9

10:10 pm-4:55 pm

1 stop29h 45m

$1,173

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 10/25

8:10 pm-12:00 pm

1 stop29h 50m

Sydney Kingsford Smith

Tue 11/18

8:25 am-3:00 pm

2 stops41h 35m

$1,185

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 11/7

10:25 am-10:20 am

1 stop36h 55m

Sydney Kingsford Smith

Wed 11/19

10:15 pm-3:25 pm

1 stop28h 10m

$1,217

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 9/23

8:00 am-8:10 pm

2 stops27h 10m

Sydney Kingsford Smith

Sun 10/26

3:15 pm-12:10 pm

2 stops31h 55m

$1,237

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 9/14

11:00 am-6:35 am

1 stop34h 35m

Sydney Kingsford Smith

Sun 11/2

10:15 pm-3:25 pm

1 stop28h 10m

$1,248

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 11/3

5:50 pm-7:25 am

2 stops26h 35m

Sydney Kingsford Smith

Mon 11/24

3:55 pm-8:05 am

2 stops27h 10m

$1,267

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 23 results

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 round-trip 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?

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Sydney, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Sydney (average of $1,031). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $1,619). 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?

It’s typically best to fly out from London Heathrow Airport to Sydney in the afternoon. Doing so could potentially save you 18% on the flight price compared to flying at noon, which is usually more expensive.

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

Travelers seeking maximum savings on their London Heathrow Airport to Sydney flight should consider departing on Sunday evenings when fares are most often at their lowest. Wednesday mornings 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

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).

What’s the top layover airport for flights from London Heathrow Airport to Sydney?

Guangzhou (CAN) – chosen by Cheapflights users on 25% of 1-stop itineraries from London Heathrow Airport to Sydney on Cheapflights.

What’s the cheapest layover airport for flights from London Heathrow Airport to Sydney?

Beijing (PEK) is the most affordable 1-stop option, with an average round-trip price of $751.

What’s the fastest layover option from London Heathrow Airport to Sydney?

Flights via Dubai (DXB) have the shortest average one-way travel time for 1-stop routes: 22h 40m.

Which airport typically offers the quickest layover for flights from London Heathrow Airport to Sydney?

Flights via Dubai (DXB) offer the fastest connection on this route, with an average layover time of 1h 43m.

Reviews of airlines servicing Sydney

Read reviews from past customers who have flown Singapore Airlines, China Southern, and Etihad Airways from London Heathrow Airport to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Singapore Airlines

8.1

Very good

1,346 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Singapore Airlines

8.1

Very good

1,346 reviews

Singapore Airlines

8.1

Very good

1,346 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

China Southern

7.6

Good

105 reviews

Singapore Airlines

8.1

Very good

1,346 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Etihad Airways

7.4

Good

1,232 reviews

Singapore Airlines

8.1

Very good

1,346 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

China Eastern

7.2

Good

160 reviews

Singapore Airlines

8.1

Very good

1,346 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

British Airways

6.7

Okay

7,265 reviews

Singapore Airlines

8.1

Very good

1,346 reviews

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Related info for your journey

What airport do you fly into for flights to Sydney from London Heathrow?
Sydney Kingsford Smith (SYD) is the airport you will fly into if you book a flight from London Heathrow to Sydney. You should not have trouble finding flights to Kingsford Smith from London Heathrow; the airport handles an average of 3 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 10 airlines have flights to the Sydney airport from London Heathrow. It is only a 4.6 mi journey from Kingsford Smith (SYD) to Sydney’s city center.
What are the cheapest airlines flying from London Heathrow Airport to Sydney round-trip?
Currently priced at $1,008, China Eastern will fly you from London Heathrow Airport to Sydney and back. In addition to China Eastern, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on China Southern for as low as $1,015. These flights start at 23% lower than the current average price 3 months from now.
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 vacation 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Sydney (average of $1,031). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $1,619). 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

Wollongong

Parramatta

Manly

Coogee

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to Sydney

Gatwick to Sydney flights

Complete your trip

Sydney car rentals

Sydney Kingsford Smith Airport car rentals

Newcastle Williamtown Airport car rentals

Port Macquarie car rentals

Orange car rentals

Sydney CBD car rentals

Potts Point car rentals

Surry Hills car rentals

Elizabeth Bay car rentals

Waterloo car rentals

Millers Point car rentals

Newtown car rentals

Other flights to Sydney

Top 10 airlines flying from Heathrow to Sydney

Airline	Cheapest	Average	Flexibility	On-time
Air China	Cheapest$747	Average$951	FlexibilityNo cancel fee	On-time67%
China Southern	Cheapest$766	Average$946	FlexibilityNo cancel fee	On-time69%
China Eastern	Cheapest$866	Average$1,220	FlexibilityNo cancel fee	On-time62%
Etihad Airways	Cheapest$1,029	Average$1,532	FlexibilityNo cancel fee	On-time75%
Cathay Pacific	Cheapest$1,115	Average$1,544	FlexibilityNo cancel fee	On-time72%
Qantas Airways	Cheapest$1,120	Average$1,438	FlexibilityNo cancel fee	On-time74%
Emirates	Cheapest$1,121	Average$1,606	FlexibilityNo cancel fee	On-time75%
Malaysia Airlines	Cheapest$1,188	Average$1,527	FlexibilityNo cancel fee	On-time67%
Singapore Airlines	Cheapest$1,307	Average$1,676	FlexibilityNo cancel fee	On-time81%
British Airways	Cheapest$1,326	Average$1,490	FlexibilityNo cancel fee	On-time70%

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.

$604+ Cheap flights from Heathrow (LHR) to Sydney (SYD)

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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Heathrow to Sydney with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: 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 Tuesday or Monday and return on a Monday

Cheap flight deals from Heathrow to Sydney

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Sydney

Cheapest flights from Heathrow to SydneyExplore 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 August 13, 2025.

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 August 13, 2025.

Cheapflights Fare Finder

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

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.

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?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Sydney. Price data was last updated on August 8, 2025.

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

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 August 13, 2025.

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

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

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 August 13, 2025.

What’s the top layover airport for flights from London Heathrow Airport to Sydney?

Share of 1-stop round-trip flights from London Heathrow Airport to Sydney chosen by Cheapflights users in the past 12 months, using the same layover each way.

What’s the cheapest layover airport for flights from London Heathrow Airport to Sydney?

Average round-trip fare for 1-stop flights from London Heathrow Airport to Sydney, chosen by Cheapflights users in the past 12 months, with the same layover each way.

What’s the fastest layover option from London Heathrow Airport to Sydney?

Shortest average travel time for 1-stop one-way flights from London Heathrow Airport to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Which airport typically offers the quickest layover for flights from London Heathrow Airport to Sydney?

Average layover duration for 1-stop one-way flights from London Heathrow Airport to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Sydney

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

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

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

How can I find direct flights from Heathrow to Sydney?

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

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

Traveling to a place near Sydney?

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.

Alternative routes for Heathrow to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Heathrow to Sydney

100% Free

Book with Flexibility

Travel Smart

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 August 13, 2025.