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Cheap flights from Sydney to London Heathrow Airport from £219

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 19/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Sydney Kingsford Smith to London Heathrow are usually found in October or February, booked 51 days in advance, depart on a Wednesday or Friday and return on a Monday

Cheap flight deals from Sydney to Heathrow

Enter your travel dates to find the best prices.

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 10 March 2026.

Sun 3/514:10
SYD
-
LHR
1 stop38h 10m
China Southern
Fri 5/622:10
LHR
-
SYD
1 stop29h 15m
China Southern
Deal found 5/3£620
Sun 3/514:10
SYD
-
LHR
1 stop38h 10m
China Southern
Mon 11/522:10
LHR
-
SYD
1 stop29h 15m
China Southern
Deal found 5/3£621
Tue 12/514:10
SYD
-
LHR
1 stop38h 10m
China Southern
Tue 26/522:10
LHR
-
SYD
1 stop29h 15m
China Southern
Deal found 9/3£622
Tue 19/514:10
SYD
-
LHR
1 stop38h 10m
China Southern
Wed 10/622:10
LHR
-
SYD
1 stop36h 15m
China Southern
Deal found 7/3£626
Thu 21/514:10
SYD
-
LHR
1 stop38h 10m
China Southern
Mon 1/622:10
LHR
-
SYD
1 stop29h 15m
China Southern
Deal found 6/3£626
Thu 14/521:00
SYD
-
LHR
2 stops31h 30m
Multiple Airlines
Thu 28/520:25
LHR
-
SYD
1 stop33h 25m
Multiple Airlines
Deal found 9/3£630
Wed 3/614:10
SYD
-
LHR
1 stop38h 10m
China Southern
Mon 8/622:10
LHR
-
SYD
1 stop29h 15m
China Southern
Deal found 7/3£632
Thu 21/521:00
SYD
-
LHR
2 stops31h 30m
Multiple Airlines
Fri 5/622:40
LHR
-
SYD
1 stop31h 10m
Multiple Airlines
Deal found 6/3£633
Thu 21/521:00
SYD
-
LHR
2 stops31h 30m
Multiple Airlines
Thu 11/622:40
LHR
-
SYD
1 stop31h 10m
Multiple Airlines
Deal found 7/3£635
Fri 15/514:10
SYD
-
LHR
1 stop38h 10m
China Southern
Sat 30/522:10
LHR
-
SYD
1 stop29h 15m
China Southern
Deal found 9/3£635
Thu 14/521:00
SYD
-
LHR
2 stops31h 30m
Multiple Airlines
Sun 31/522:40
LHR
-
SYD
1 stop31h 10m
Multiple Airlines
Deal found 10/3£636
Mon 1/610:05
SYD
-
LHR
1 stop42h 15m
China Southern
Sat 13/622:10
LHR
-
SYD
1 stop29h 15m
China Southern
Deal found 10/3£637

Find flight deals from Sydney to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Heathrow (LHR). 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 10 March 2026.

Round-trip from

£620

One-way from

£219

Popular in

December

Cheapest in

October

Average price

£899

Good one-way deal

£817 or less
China Southern
  • China Southern
  • 3/5-5/6
  • 2 total stops
  • 67h 25m total
  • Sydney to London
Search Deals
Beijing Capital Airlines
  • Beijing Capital Airlines
  • 19/3
  • 1 total stop
  • 44h 05m total
  • Sydney to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a one-way flight from Sydney Kingsford Smith to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Heathrow 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 10 March 2026.
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

Cheapest return flight

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 28/5

21:05-21:05

2 stops33h 00m

London Heathrow

Fri 19/6

22:40-19:10

2 stops35h 30m

£863

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 3/6

21:05-21:05

2 stops33h 00m

London Heathrow

Wed 24/6

06:30-19:10

2 stops27h 40m

£864

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 3/5

20:30-18:40

1 stop31h 10m

London Heathrow

Mon 11/5

21:20-12:35

1 stop30h 15m

£864

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 18/5

20:50-15:05

1 stop27h 15m

London Heathrow

Thu 21/5

21:45-16:50

1 stop34h 05m

£873

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 10/6

10:15-16:55

1 stop39h 40m

London Heathrow

Tue 30/6

19:50-12:15

2 stops55h 25m

£877

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 10/8

14:15-17:50

2 stops36h 35m

London Heathrow

Mon 31/8

18:55-08:15

2 stops28h 20m

£974

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 4/5

14:15-17:50

2 stops36h 35m

London Heathrow

Sun 10/5

19:50-08:15

2 stops51h 25m

£990

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 17/7

10:15-17:50

2 stops64h 35m

London Heathrow

Wed 29/7

18:55-08:15

2 stops52h 20m

£995

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 2/9

21:00-14:20

1 stop26h 20m

London Heathrow

Fri 25/9

16:35-19:25

1 stop41h 50m

£1,031
Fastest return journey

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 18/6

22:10-16:30

1 stop27h 20m

London Heathrow

Mon 3/8

21:10-14:55

2 stops32h 45m

£1,036

Flights are sorted by cheapest return flights first.

Deals found on 9/3

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 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 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 return flight from Sydney to Heathrow. Price data was last updated on 6 March 2026.

The price you pay for your flight from Sydney to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 51 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, February is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of £495). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of £927). 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?

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 10 March 2026.

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

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 10 March 2026.
See what other customers who have flown with Cathay Pacific,Qantas Airways, andEtihad Airways from Sydney to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,202 reviews
Check prices

Entertainment

7.8

Overall

7.6

Boarding

7.9

Crew

8.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Chi-Dung,Dec 2025

HKG - SGN

Boarding was crazy. Flight was delayed for an hour and passengers were trap on flight without water for an hour. Meals were disappointedly poor. Only one round of very little beverages (I was served half of a sparkling can—didnt know why crew refused yo serve me whole can). Crew were cold and rude and unattentive. Toilets are dirty terribly. Worst flight ever.
Cathay Pacific
7.6
Good
1,202 reviews
Cathay Pacific
7.6
Good
1,202 reviews
Check prices

Entertainment

7.8

Overall

7.6

Boarding

7.9

Crew

8.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Chi-Dung,Dec 2025

HKG - SGN

Boarding was crazy. Flight was delayed for an hour and passengers were trap on flight without water for an hour. Meals were disappointedly poor. Only one round of very little beverages (I was served half of a sparkling can—didnt know why crew refused yo serve me whole can). Crew were cold and rude and unattentive. Toilets are dirty terribly. Worst flight ever.
Qantas Airways
7.5
Good
1,002 reviews
Cathay Pacific
7.6
Good
1,202 reviews
Check prices

Entertainment

7.8

Overall

7.6

Boarding

7.9

Crew

8.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Chi-Dung,Dec 2025

HKG - SGN

Boarding was crazy. Flight was delayed for an hour and passengers were trap on flight without water for an hour. Meals were disappointedly poor. Only one round of very little beverages (I was served half of a sparkling can—didnt know why crew refused yo serve me whole can). Crew were cold and rude and unattentive. Toilets are dirty terribly. Worst flight ever.
Etihad Airways
7.3
Good
1,424 reviews
Cathay Pacific
7.6
Good
1,202 reviews
Check prices

Entertainment

7.8

Overall

7.6

Boarding

7.9

Crew

8.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Chi-Dung,Dec 2025

HKG - SGN

Boarding was crazy. Flight was delayed for an hour and passengers were trap on flight without water for an hour. Meals were disappointedly poor. Only one round of very little beverages (I was served half of a sparkling can—didnt know why crew refused yo serve me whole can). Crew were cold and rude and unattentive. Toilets are dirty terribly. Worst flight ever.
British Airways
6.7
Okay
7,781 reviews
Cathay Pacific
7.6
Good
1,202 reviews
Check prices

Entertainment

7.8

Overall

7.6

Boarding

7.9

Crew

8.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Chi-Dung,Dec 2025

HKG - SGN

Boarding was crazy. Flight was delayed for an hour and passengers were trap on flight without water for an hour. Meals were disappointedly poor. Only one round of very little beverages (I was served half of a sparkling can—didnt know why crew refused yo serve me whole can). Crew were cold and rude and unattentive. Toilets are dirty terribly. Worst flight ever.
Air India
5.5
Fair
2,968 reviews
Cathay Pacific
7.6
Good
1,202 reviews
Check prices

Entertainment

7.8

Overall

7.6

Boarding

7.9

Crew

8.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Chi-Dung,Dec 2025

HKG - SGN

Boarding was crazy. Flight was delayed for an hour and passengers were trap on flight without water for an hour. Meals were disappointedly poor. Only one round of very little beverages (I was served half of a sparkling can—didnt know why crew refused yo serve me whole can). Crew were cold and rude and unattentive. Toilets are dirty terribly. Worst flight ever.

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?

    For a flight from Sydney to London Heathrow, you will be flying from 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 outbound flights to London Heathrow per day. 14 airlines have flights to London Heathrow from Sydney Kingsford Smith on a regular basis.

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

    A quick flight from Sydney to London Heathrow Airport can take about 27h 15m. Turkish Airlines provides one of the quickest options available for as low as £873. The distance between Sydney and London Heathrow Airport is about 10568 mi. This flight may include one or multiple stops.

  • 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 £619 on this airline. Additional options worth looking into are China Eastern and China Southern, starting at £632 and £663 round-trip. Turkish Airlines is currently priced 36% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Hainan Airlines. According to our data, you can fly for as low as £189. Users have also found prices from £195 and £208 on China Southern and Air China, respectively.

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

    Looking at all options, your cheapest flight can be booked for £758. While the most popular route (Sydney Kingsford Smith - London Heathrow) can be booked for £622 on average, our data indicates £1,267 when flying from Sydney to London Heathrow Airport.

  • 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 holiday 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, February is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of £495). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of £927). 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
Milton Keynes
Wembley
Croydon
Northampton
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Chelmsford
Eastbourne
Ipswich
Swindon
Bedford

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.

Top 10 airlines flying from Sydney to Heathrow

Discover the top 10 airlines that operate flights from Sydney to Heathrow. 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 10 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest£619Average£984FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
China EasternCheapest£632Average£757FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£663Average£1,091FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£668Average£806FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest£691Average£880FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest£731Average£899FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Malaysia AirlinesCheapest£782Average£1,051FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Singapore AirlinesCheapest£805Average£1,049FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
British AirwaysCheapest£806Average£1,128FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Cathay PacificCheapest£807Average£975FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific 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 Sydney to Heathrow?

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

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Sydney to Heathrow for you. Better yet — we are completely free to use.

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

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Sydney today and book when prices fit your budget.

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