Cheap flights from Sydney to London Heathrow Airport from £435

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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
18 Jul — 25 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Sydney Kingsford Smith to London Heathrow are usually found in February or October, booked 51 days in advance, depart on a Monday 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 18 June 2026.

Sat 25/720:35
SYD
-
LHR
1 stop47h 55m
Air India
Tue 11/821:45
LHR
-
SYD
1 stop36h 20m
Air India
Deal found 15/6£865
Fri 4/920:35
SYD
-
LHR
1 stop47h 55m
Air India
Tue 6/1013:15
LHR
-
SYD
1 stop44h 50m
Air India
Deal found 13/6£866
Thu 10/920:35
SYD
-
LHR
1 stop31h 25m
Air India
Sun 20/909:45
LHR
-
SYD
1 stop24h 20m
Air India
Deal found 14/6£866
Sat 1/820:35
SYD
-
LHR
1 stop31h 25m
Air India
Thu 13/814:00
LHR
-
SYD
1 stop44h 05m
Air India
Deal found 15/6£867
Sat 22/820:35
SYD
-
LHR
1 stop31h 25m
Air India
Wed 9/909:45
LHR
-
SYD
1 stop24h 20m
Air India
Deal found 16/6£868
Sun 26/720:30
SYD
-
LHR
1 stop31h 10m
China Eastern
Mon 10/821:20
LHR
-
SYD
1 stop30h 15m
China Eastern
Deal found 13/6£869
Mon 20/719:45
SYD
-
LHR
2 stops33h 30m
Air China
Sat 29/822:00
LHR
-
SYD
2 stops31h 50m
Air China
Deal found 15/6£869
Wed 15/720:30
SYD
-
LHR
1 stop31h 10m
China Eastern
Sat 19/921:20
LHR
-
SYD
1 stop30h 15m
China Eastern
Deal found 16/6£870
Mon 27/719:45
SYD
-
LHR
2 stops33h 30m
Air China
Mon 3/822:40
LHR
-
SYD
1 stop31h 10m
Air China
Deal found 15/6£871
Mon 5/1021:35
SYD
-
LHR
1 stop31h 25m
Air India
Mon 12/1013:15
LHR
-
SYD
1 stop44h 50m
Air India
Deal found 14/6£872
Wed 29/719:40
SYD
-
LHR
1 stop31h 00m
Air China
Wed 5/822:40
LHR
-
SYD
1 stop31h 10m
Air China
Deal found 14/6£872
Mon 20/719:45
SYD
-
LHR
1 stop33h 40m
Air China
Mon 3/822:40
LHR
-
SYD
1 stop31h 10m
Air China
Deal found 15/6£873

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 18 June 2026.

Round-trip from

£865

One-way from

£435

Popular in

December

Cheapest in

February

Average price

£1,111

Good round-trip deal

£1,238 or less
Air India
  • Air India
  • 25/7-11/8
  • 2 total stops
  • 84h 15m total
  • Sydney to London
8/7
  • 8/7
  • 2 total stops
  • 36h 40m total
  • Sydney to London
Highest demand for flights based on searches. 7% potential increase in price (£60 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£24 potential savings vs. average return price).
Average for round-trip flights in June 2026
Price to beat on a round-trip flight from Sydney Kingsford Smith to London Heathrow.

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 18 June 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

Mon 27/7

10:00-18:40

3 stops65h 40m

London Heathrow

Wed 12/8

21:20-12:35

1 stop30h 15m

£928

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 19/11

21:30-14:55

2 stops28h 25m

London Heathrow

Mon 23/11

06:25-19:35

2 stops26h 10m

£1,016

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 16/10

11:15-17:50

2 stops64h 35m

London Heathrow

Mon 16/11

11:00-13:15

1 stop39h 15m

£1,048

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 19/7

20:30-18:40

1 stop31h 10m

London Heathrow

Wed 29/7

21:20-12:35

1 stop30h 15m

£1,084

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 10/8

14:15-17:50

2 stops36h 35m

London Heathrow

Sun 27/9

19:50-08:15

2 stops51h 25m

£1,119

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 7/8

10:15-17:50

2 stops64h 35m

London Heathrow

Sun 23/8

19:50-08:15

2 stops27h 25m

£1,135
Fastest return journey

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 30/11

10:25-05:35

1 stop30h 10m

London Heathrow

Sun 27/12

21:25-07:55

1 stop23h 30m

£1,135

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 19/7

20:30-18:40

1 stop31h 10m

London Heathrow

Thu 23/7

21:20-12:35

1 stop30h 15m

£1,170

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 11/11

11:40-14:15

2 stops37h 35m

London Heathrow

Sun 15/11

11:20-19:35

2 stops45h 15m

£1,181

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sun 25/10

08:05-10:45

3 stops36h 40m

London Heathrow

Sun 8/11

16:30-19:35

2 stops40h 05m

£1,303

Flights are sorted by cheapest return flights first.

Deals found on 13/6

Showing 1-10 of 22 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?

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 50 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 £801). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of £1,342). 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 18 June 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.

How much does it cost for a return flight from Sydney to London Heathrow Airport?

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 18 June 2026.
See what other customers who have flown with Emirates,Cathay Pacific, andQantas 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.

Boarding

8.1

Crew

8.4

Overall

8.1

Comfort

8.0

Entertainment

8.2

Food

7.9

Reviews

1 / 20
10.0
Excellent

Steven,May 2026

DXB - GLA

Anyone that i had the pleasure of dealing with i found to be courteous well mannered and informative

Boarding

8.1

Crew

8.4

Overall

8.1

Comfort

8.0

Entertainment

8.2

Food

7.9

Reviews

1 / 20
10.0
Excellent

Steven,May 2026

DXB - GLA

Anyone that i had the pleasure of dealing with i found to be courteous well mannered and informative

Boarding

8.1

Crew

8.4

Overall

8.1

Comfort

8.0

Entertainment

8.2

Food

7.9

Reviews

1 / 20
10.0
Excellent

Steven,May 2026

DXB - GLA

Anyone that i had the pleasure of dealing with i found to be courteous well mannered and informative

Boarding

8.1

Crew

8.4

Overall

8.1

Comfort

8.0

Entertainment

8.2

Food

7.9

Reviews

1 / 20
10.0
Excellent

Steven,May 2026

DXB - GLA

Anyone that i had the pleasure of dealing with i found to be courteous well mannered and informative

Boarding

8.1

Crew

8.4

Overall

8.1

Comfort

8.0

Entertainment

8.2

Food

7.9

Reviews

1 / 20
10.0
Excellent

Steven,May 2026

DXB - GLA

Anyone that i had the pleasure of dealing with i found to be courteous well mannered and informative

Boarding

8.1

Crew

8.4

Overall

8.1

Comfort

8.0

Entertainment

8.2

Food

7.9

Reviews

1 / 20
10.0
Excellent

Steven,May 2026

DXB - GLA

Anyone that i had the pleasure of dealing with i found to be courteous well mannered and informative

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. 12 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 28h 25m. China Eastern provides one of the quickest options available for as low as £1,016. 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 Air China. Our recent data shows that you can find tickets from as low as £676 on this airline. Additional options worth looking into are Etihad Airways and Air India, starting at £709 and £766 round-trip. Air China is currently priced 32% 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 £207 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 £1,230. While the most popular route (Sydney Kingsford Smith - London Heathrow) can be booked for £681 on average, our data indicates £1,492 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 £801). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of £1,342). 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
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Croydon
Slough
Ilford
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Swindon
Eastbourne
Watford
Poole
Guildford
Romford
Ipswich

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 18 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£676Average£1,098FlexibilityNo cancel feeOn-time67%
Search Air China flights
Etihad AirwaysCheapest£709Average£919FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air IndiaCheapest£766Average£915FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Qatar AirwaysCheapest£810Average£1,037FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest£857Average£1,258FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Singapore AirlinesCheapest£891Average£1,269FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Malaysia AirlinesCheapest£895Average£1,421FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Qantas AirwaysCheapest£905Average£1,257FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Cathay PacificCheapest£973Average£1,362FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
British AirwaysCheapest£980Average£1,378FlexibilityNo cancel feeOn-time70%
Search British Airways 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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