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

Our cheapest airline available from Sydney to London Heathrow Airport is Turkish Airlines. Our recent data shows that you can find tickets from as low as $983 on this airline. Additional options worth looking into are China Southern and Air China, starting at $991 and $998 round-trip. Turkish Airlines is 24% cheaper than the average price of flights available within the next 90 days to this destination.

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

The cheapest airlines for a one-way flight from Sydney to London Heathrow Airport are Etihad Airways ($501), Vietnam Airlines ($507), and China Southern ($516).

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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

The most popular airlines flying from Sydney to London Heathrow Airport are Air India, British Airways and Air China. Something to consider prior to booking your flight.

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

To save on the cost of your flight from Sydney to London Heathrow Airport, book at least 52 days before your planned departure. Booking around this time can save you about 11% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,169 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,227.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, October can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from Sydney in October are about $1,235 on average during October, but can be found for as low as $817.

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

Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to London Heathrow. You should not have trouble finding flights to London Heathrow from Kingsford Smith; the airport handles an average of 3 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 13 airlines have flights from the Sydney airport to London Heathrow. It is only a 4.6 mi journey to Kingsford Smith (SYD) from Sydney’s city center.

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

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

How can I find direct flights from Sydney to Heathrow?

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

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

Yes. Cheapflights offers flight deals from Sydney to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$489+ Flights from Sydney to London Heathrow Airport

Q: How much does it cost to fly round-trip from Sydney to London Heathrow Airport?

Airfare is below average for this route at the moment. Sydney to London Heathrow Airport flights typically cost between $1,155 and $1,493 in October. The cheapest round-trip price found within the last 3 days was $983 on Turkish Airlines (Oct 16-Oct 28).

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

Find cheap flights from Sydney to Heathrow 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.

Cheap flight deals from Sydney to Heathrow

Round-trip from	$983 (CheapOair)
One-way from	$489 (Kiwi.com)
Popular in	December
Cheapest in	October
Average price	$1,402

From Sydney Kingsford Smith to London Heathrow

Search Deals

One-way flight from Sydney Kingsford Smith to London Heathrow

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($175 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($45 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Sydney to Heathrow

Cheapest flights from Sydney to Heathrow
Explore the most affordable flight options available from Sydney to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Thu 10/169:55 pmSYD - LHR

2 stops47h 50mTurkish Airlines

Tue 10/288:00 pmLHR - SYD

2 stops36h 50mTurkish Airlines

Deal found 7/30

$983

Tue 8/269:45 pmSYD - LHR

1 stop30h 15mChina Southern

Tue 9/210:10 pmLHR - SYD

1 stop36h 15mChina Southern

Deal found 7/29

$991

Sun 10/128:40 pmSYD - LHR

1 stop33h 50mAir China

Fri 10/248:25 pmLHR - SYD

1 stop33h 05mAir China

Deal found 7/30

$998

Thu 10/169:00 pmSYD - LHR

2 stops32h 30mMultiple Airlines

Tue 10/285:40 pmLHR - SYD

1 stop34h 50mMultiple Airlines

Deal found 7/30

$1,003

Fri 11/74:20 pmSYD - LHR

1 stop25h 20mEtihad Airways

Sat 11/157:20 pmLHR - SYD

1 stop23h 50mEtihad Airways

Deal found 7/31

$1,013

Thu 7/318:30 pmSYD - LHR

1 stop31h 10mChina Eastern

Tue 8/59:20 pmLHR - SYD

1 stop26h 40mChina Eastern

Deal found 7/29

$1,036

Tue 10/1410:20 pmSYD - LHR

1 stop32h 15mCathay Pacific

Sat 10/258:10 pmLHR - SYD

1 stop29h 50mCathay Pacific

Deal found 7/30

$1,049

Tue 10/72:05 pmSYD - LHR

1 stop25h 50mMalaysia Airlines

Mon 11/310:25 amLHR - SYD

1 stop23h 10mMalaysia Airlines

Deal found 7/31

$1,078

Best flights from Sydney to Heathrow
Discover carefully curated flight deals from Sydney to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2025.

Thu 10/169:55 pmSYD - LHR

2 stops47h 50mTurkish Airlines

Tue 10/288:00 pmLHR - SYD

2 stops36h 50mTurkish Airlines

Deal found 7/30

$983

Tue 8/269:45 pmSYD - LHR

1 stop30h 15mChina Southern

Tue 9/210:10 pmLHR - SYD

1 stop36h 15mChina Southern

Deal found 7/29

$991

Sun 10/128:40 pmSYD - LHR

1 stop33h 50mAir China

Fri 10/248:25 pmLHR - SYD

1 stop33h 05mAir China

Deal found 7/30

$998

Thu 10/169:00 pmSYD - LHR

2 stops32h 30mMultiple Airlines

Tue 10/285:40 pmLHR - SYD

1 stop34h 50mMultiple Airlines

Deal found 7/30

$1,003

Fri 11/74:20 pmSYD - LHR

1 stop25h 20mEtihad Airways

Sun 11/168:55 amLHR - SYD

1 stop22h 40mEtihad Airways

Deal found 7/31

$1,013

Wed 11/1912:00 pmSYD - LHR

1 stop40h 30mChina Eastern

Thu 12/49:00 pmLHR - SYD

2 stops52h 15mChina Eastern

Deal found 7/30

$1,043

Tue 10/1410:20 pmSYD - LHR

1 stop32h 15mCathay Pacific

Sat 10/258:10 pmLHR - SYD

1 stop29h 50mCathay Pacific

Deal found 7/30

$1,049

Tue 11/1110:25 amSYD - LHR

1 stop30h 10mMalaysia Airlines

Fri 11/2810:25 amLHR - SYD

1 stop36h 55mMalaysia Airlines

Deal found 7/30

$1,083

Fri 10/1710:10 pmSYD - LHR

1 stop28h 20mChina Airlines

Sat 10/259:10 pmLHR - SYD

1 stop29h 05mChina Airlines

Deal found 7/30

$1,100

Last-minute flights from Sydney to Heathrow
Discover last-minute flight deals from Sydney to Heathrow. Data last updated July 31, 2025 and is based on user searches.

Thu 7/318:30 pmSYD - LHR

1 stop31h 10mChina Eastern

Tue 8/59:20 pmLHR - SYD

1 stop26h 40mChina Eastern

Deal found 7/29

$1,036

Thu 7/317:40 pmSYD - LHR

1 stop33h 50mAir China

Wed 8/610:40 pmLHR - SYD

1 stop31h 10mAir China

Deal found 7/29

$1,045

Tue 8/59:30 amSYD - LHR

1 stop42h 20mAsiana Airlines

Fri 9/128:40 pmLHR - SYD

1 stop25h 50mAsiana Airlines

Deal found 7/29

$1,340

Tue 8/52:50 pmSYD - LHR

2 stops36h 50mAustrian Airlines

Tue 8/269:05 amLHR - SYD

2 stops40h 15mAustrian Airlines

Deal found 7/30

$1,458

Wed 8/611:30 amSYD - LHR

2 stops27h 50mCathay Pacific

Thu 9/118:10 pmLHR - SYD

1 stop25h 00mCathay Pacific

Deal found 7/29

$1,328

Wed 8/610:20 amSYD - LHR

2 stops29h 45mEmirates

Wed 9/104:50 pmLHR - SYD

2 stops28h 35mEmirates

Deal found 7/29

$1,438

Thu 8/79:30 pmSYD - LHR

1 stop24h 15mMultiple Airlines

Wed 9/108:55 pmLHR - SYD

2 stops25h 30mMultiple Airlines

Deal found 7/30

$1,092

Thu 8/710:10 pmSYD - LHR

1 stop27h 20mChina Airlines

Mon 9/89:10 pmLHR - SYD

1 stop28h 35mChina Airlines

Deal found 7/29

$1,247

Thu 8/76:00 amSYD - LHR

1 stop39h 25mQantas Airways

Sun 9/78:50 pmLHR - SYD

2 stops27h 25mQantas Airways

Deal found 7/29

$1,553

Fri 8/88:55 pmSYD - LHR

2 stops28h 05mTurkish Airlines

Wed 9/106:30 amLHR - SYD

2 stops27h 30mTurkish Airlines

Deal found 7/29

$1,473

Sun 8/103:40 pmSYD - LHR

1 stop30h 05mEtihad Airways

Fri 9/129:45 pmLHR - SYD

1 stop23h 25mEtihad Airways

Deal found 7/31

$1,176

Sun 8/1010:15 amSYD - LHR

2 stops39h 50mVietnam Airlines

Tue 9/167:50 pmLHR - SYD

1 stop27h 25mVietnam Airlines

Deal found 7/29

$1,278

One-way flights from Sydney to Heathrow
Search for one-way flight options from Sydney to Heathrow. Find affordable one-way fares based on user searches. Data last updated July 31, 2025.

Thu 10/29:15 pmSYD - LHR

2 stops31h 45mMultiple Airlines

Deal found 7/29

$489

Mon 9/159:30 pmSYD - LHR

1 stop42h 30mEtihad Airways

Deal found 7/31

$501

Mon 9/1510:15 amSYD - LHR

1 stop40h 35mVietnam Airlines

Deal found 7/30

$507

Fri 9/510:15 amSYD - LHR

1 stop41h 45mChina Southern

Deal found 7/29

$516

Wed 8/1311:00 amSYD - LHR

1 stop40h 40mChina Eastern

Deal found 7/29

$541

Tue 9/29:00 pmSYD - LHR

1 stop31h 30mHainan Airlines

Deal found 7/31

$574

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 10/16

9:55 pm-11:45 am

2 stops47h 50m

London Heathrow

Tue 10/28

8:00 pm-7:50 pm

2 stops36h 50m

$983

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 8/26

9:45 pm-7:00 pm

1 stop30h 15m

London Heathrow

Tue 9/2

10:10 pm-7:25 pm

1 stop36h 15m

$991

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 10/12

8:40 pm-8:30 pm

1 stop33h 50m

London Heathrow

Fri 10/24

8:25 pm-3:30 pm

1 stop33h 05m

$998

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 10/16

9:00 pm-7:30 pm

2 stops32h 30m

London Heathrow

Tue 10/28

5:40 pm-3:30 pm

1 stop34h 50m

$1,003

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 11/7

4:20 pm-6:40 am

1 stop25h 20m

London Heathrow

Sun 11/16

8:55 am-6:35 pm

1 stop22h 40m

$1,013

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 11/19

12:00 pm-5:30 pm

1 stop40h 30m

London Heathrow

Thu 12/4

9:00 pm-12:15 pm

2 stops52h 15m

$1,043

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 10/14

10:20 pm-8:35 pm

1 stop32h 15m

London Heathrow

Sat 10/25

8:10 pm-12:00 pm

1 stop29h 50m

$1,049

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 11/11

10:25 am-5:35 am

1 stop30h 10m

London Heathrow

Fri 11/28

10:25 am-10:20 am

1 stop36h 55m

$1,083

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 10/17

10:10 pm-4:30 pm

1 stop28h 20m

London Heathrow

Sat 10/25

9:10 pm-12:15 pm

1 stop29h 05m

$1,100

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 10/2

9:15 pm-8:00 pm

2 stops31h 45m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 15 results

Best time to book a flight from Sydney to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Sydney 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 Sydney to London Heathrow Airport

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

The best time to book flights from Sydney to London Heathrow Airport is 20 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 Sydney to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $661). Flying from Sydney to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 SYD to LHR?

It’s typically best to fly out from Sydney to London Heathrow Airport at noon. Doing so could potentially save you 4% on the flight price compared to flying in the morning, which is usually more expensive.

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

Travelers seeking maximum savings on their Sydney to London Heathrow Airport flight should consider departing on Monday evenings 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 Sydney to London Heathrow Airport

The most flights from SYD to LHR 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 much does it cost to fly round-trip from Sydney to London Heathrow Airport?

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

Singapore (SIN) – chosen by Cheapflights users on 29% of 1-stop itineraries from Sydney to London Heathrow Airport on Cheapflights.

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

Kuala Lumpur (KUL) is the most affordable 1-stop option, with an average round-trip price of $1,053.

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

Flights via Singapore (SIN) have the shortest average one-way travel time for 1-stop routes: 23h 58m.

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

Flights via Singapore (SIN) offer the fastest connection on this route, with an average layover time of 2h 14m.

Reviews of airlines servicing Heathrow

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

China Airlines

8.3

Very good

754 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

China Airlines

8.3

Very good

754 reviews

China Airlines

8.3

Very good

754 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

SFO - TPE

Hainan Airlines

8.2

Very good

43 reviews

China Airlines

8.3

Very good

754 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

SFO - TPE

Cathay Pacific

7.6

Good

949 reviews

China Airlines

8.3

Very good

754 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

SFO - TPE

China Southern

7.6

Good

104 reviews

China Airlines

8.3

Very good

754 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

SFO - TPE

Vietnam Airlines

7.5

Good

197 reviews

China Airlines

8.3

Very good

754 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2025

SFO - TPE

Related info for your journey

What airport do you fly from for flights from Sydney to London Heathrow?
Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to London Heathrow. You should not have trouble finding flights to London Heathrow from Kingsford Smith; the airport handles an average of 3 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 13 airlines have flights from the Sydney airport to London Heathrow. It is only a 4.6 mi journey to Kingsford Smith (SYD) from Sydney’s city center.
What are the cheapest airlines flying from Sydney to London Heathrow Airport round-trip?
Our cheapest airline available from Sydney to London Heathrow Airport is Turkish Airlines. Our recent data shows that you can find tickets from as low as $983 on this airline. Additional options worth looking into are China Southern and Air China, starting at $991 and $998 round-trip. Turkish Airlines is 24% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Sydney to London Heathrow Airport one-way?
The cheapest airlines for a one-way flight from Sydney to London Heathrow Airport are Etihad Airways ($501), Vietnam Airlines ($507), and China Southern ($516).
Can I find deals for flights from Sydney to Heathrow that include hotel bookings?
Yes. In addition to deals on Sydney to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sydney to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Heathrow.
Can I find deals for business class flights from Sydney to Heathrow?
Yes. Cheapflights offers flight deals from Sydney to Heathrow 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 Sydney to London Heathrow Airport?
Currently, November is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $661). Flying from Sydney to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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

Hounslow

Hayes

Thornton Heath

Harrow

Canterbury

Dover

Stratford-upon-Avon

Orpington

Watford

Northampton

Gatwick

Borehamwood

Dartford

Broadway

Aylesbury

Chelmsford

Folkestone

Southend-on-Sea

Chichester

Swindon

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Sydney to Heathrow

Sydney to Gatwick flights

Other flights to Heathrow

John F Kennedy Intl to Heathrow flights

Boston to Heathrow flights

Newark to Heathrow flights

Los Angeles to Heathrow flights

Dulles Intl to Heathrow flights

San Francisco to Heathrow flights

London Heathrow Airport to Manchester flights

London Heathrow Airport to Aberdeen flights

London Heathrow Airport to Inverness flights

London Heathrow Airport to Manchester flights

London Heathrow Airport to Newcastle upon Tyne flights

London Heathrow Airport to Belfast City Airport flights

London Heathrow Airport to Paris Orly Airport flights

London Heathrow Airport to Belgrade flights

London Heathrow Airport to Toulouse flights

London Heathrow Airport to Glasgow Intl Airport flights

London Heathrow Airport to Luxembourg flights

London Heathrow Airport to Edinburgh flights

London Heathrow Airport to Milan Linate Airport flights

London Heathrow Airport to Belgrade flights

London Heathrow Airport to Barcelona-El Prat Airport flights

London Heathrow Airport to Naples flights

London Heathrow Airport to Paris Charles de Gaulle Airport flights

London Heathrow Airport to Budapest flights

Top 10 airlines flying from Sydney to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Air China	Cheapest$831	Average$1,216	FlexibilityNo cancel fee	On-time67%
Etihad Airways	Cheapest$964	Average$1,393	FlexibilityNo cancel fee	On-time75%
Malaysia Airlines	Cheapest$999	Average$1,148	FlexibilityNo cancel fee	On-time67%
Cathay Pacific	Cheapest$1,015	Average$1,359	FlexibilityNo cancel fee	On-time72%
British Airways	Cheapest$1,086	Average$1,458	FlexibilityNo cancel fee	On-time70%
Singapore Airlines	Cheapest$1,092	Average$1,423	FlexibilityNo cancel fee	On-time81%
Air India	Cheapest$1,102	Average$1,235	FlexibilityNo cancel fee	On-timeN/A
China Airlines	Cheapest$1,115	Average$1,130	FlexibilityNo cancel fee	On-time70%
Emirates	Cheapest$1,186	Average$1,426	FlexibilityNo cancel fee	On-time75%
China Southern	Cheapest$1,254	Average$1,333	FlexibilityNo cancel fee	On-time69%

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.

$489+ Cheap flights from Sydney (SYD) to Heathrow (LHR)

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sydney to Heathrow with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Sydney to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Sydney to Heathrow

Cheapest flights from Sydney to HeathrowExplore the most affordable flight options available from Sydney to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Explore the most affordable flight options available from Sydney to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Sydney to Heathrow

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Sydney to Heathrow. Price data was last updated on July 25, 2025.

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

What is the cheapest time of day to fly from SYD to LHR?

Find hourly flight availability from Sydney to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

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

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

Weekly flight availability from Sydney to London Heathrow Airport

Explore weekly flight availability from Sydney to Heathrow. 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 July 31, 2025.

How much does it cost to fly round-trip from Sydney to London Heathrow Airport?

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

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

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

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

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

Shortest average travel time for 1-stop one-way flights from Sydney to London Heathrow Airport, 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 Sydney to London Heathrow Airport?

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

Reviews of airlines servicing Heathrow

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

Related info for your journey

Find useful and relevant information for your journey from Sydney to Heathrow. 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 from for flights from Sydney to London Heathrow?

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

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

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

How can I find direct flights from Sydney to Heathrow?

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

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

Traveling to a place near London Heathrow Airport?

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 Sydney to Heathrow

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

Top 10 airlines flying from Sydney to Heathrow

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Sydney to Heathrow
Explore the most affordable flight options available from Sydney to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.