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Cheap flights from Sydney to London Heathrow Airport from $645

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 25/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
15 Apr — 22 Apr1
1 adult

Cheapflights Tip: The best prices from Sydney Kingsford Smith to London Heathrow are usually found in October or February, booked 4 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap 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 April 2025.

Round-trip from

$1,475

One-way from

$645

Popular in

December

Cheapest in

October

Average price

$2,120

Good round-trip deal

$2,109 or less

Good one-way deal

$1,482 or less
China Eastern
  • China Eastern
  • 13/5-31/5
  • 2 total stops
  • 67h 20m total
  • Sydney to London
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Air China
  • Air China
  • 25/5
  • 1 total stop
  • 31h 05m total
  • Sydney to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($431 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($118 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Sydney Kingsford Smith to London Heathrow.
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Price to beat on a one-way flight from Sydney Kingsford Smith to London Heathrow.
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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 10 April 2025.

Sun 25/511:20SYD - LHR
3 stops40h 20mChina Eastern
Thu 29/521:20LHR - SYD
3 stops50h 10mChina Eastern
Deal found 9/4$1,480
Tue 14/1011:15SYD - LHR
1 stop41h 45mChina Southern
Mon 10/1122:00LHR - SYD
1 stop24h 25mChina Southern
Deal found 10/4$1,493
Thu 22/521:00SYD - LHR
2 stops31h 30mMultiple Airlines
Sun 8/620:25LHR - SYD
1 stop33h 25mMultiple Airlines
Deal found 9/4$1,503
Sun 18/519:40SYD - LHR
1 stop33h 50mAir China
Sat 31/522:00LHR - SYD
2 stops55h 50mAir China
Deal found 10/4$1,520
Tue 20/521:00SYD - LHR
1 stop31h 30mHainan Airlines
Mon 9/622:00LHR - SYD
2 stops55h 15mHainan Airlines
Deal found 10/4$1,524
Wed 15/1021:55SYD - LHR
2 stops45h 55mTurkish Airlines
Wed 12/1111:30LHR - SYD
2 stops45h 15mTurkish Airlines
Deal found 10/4$1,566
Thu 15/522:10SYD - LHR
1 stop27h 20mChina Airlines
Fri 30/521:10LHR - SYD
1 stop28h 35mChina Airlines
Deal found 10/4$1,606
Mon 9/608:55SYD - LHR
1 stop39h 45mJapan Airlines
Sun 22/609:20LHR - SYD
1 stop36h 00mJapan Airlines
Deal found 10/4$1,655
Mon 13/1016:00SYD - LHR
2 stops34h 25mSWISS
Wed 12/1113:50LHR - SYD
2 stops30h 50mSWISS
Deal found 10/4$1,674
Wed 14/522:10SYD - LHR
1 stop27h 25mMalaysia Airlines
Fri 23/511:00LHR - SYD
1 stop23h 35mMalaysia Airlines
Deal found 10/4$1,719
Wed 4/610:15SYD - LHR
1 stop39h 40mVietnam Airlines
Mon 16/618:55LHR - SYD
1 stop32h 20mVietnam Airlines
Deal found 10/4$1,722

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 647,157 searches. Data last updated 10 April 2025.
Use the filters below to find and compare flights from Sydney to London Heathrow Airport that are best for you.

Fly from

Sydney

Fly to

Heathrow

Route

Depart

Return

Price

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 13/5

11:00-18:40

1 stop40h 40m

London Heathrow

Sat 31/5

21:20-09:00

1 stop26h 40m

$1,475

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 6/10

22:10-16:35

1 stop28h 25m

London Heathrow

Mon 24/11

21:25-10:20

1 stop25h 55m

$1,493

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 22/5

21:00-19:30

2 stops31h 30m

London Heathrow

Sun 8/6

20:25-14:50

1 stop33h 25m

$1,503

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Sat 7/6

08:45-16:15

2 stops40h 30m

London Heathrow

Thu 19/6

22:10-08:25

1 stop25h 15m

$1,508

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 20/5

19:40-20:30

1 stop33h 50m

London Heathrow

Thu 29/5

22:40-14:50

1 stop31h 10m

$1,517

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 31/7

22:10-16:30

1 stop27h 20m

London Heathrow

Wed 3/9

21:10-10:45

1 stop28h 35m

$1,540

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 20/5

20:55-22:25

2 stops34h 30m

London Heathrow

Tue 24/6

06:30-19:00

2 stops27h 30m

$1,585

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 20/5

21:00-19:30

1 stop31h 30m

London Heathrow

Mon 9/6

22:00-14:15

2 stops55h 15m

$1,625

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 9/6

08:55-15:40

1 stop39h 45m

London Heathrow

Sun 22/6

09:20-06:20

1 stop36h 00m

$1,655

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 23/7

15:00-19:20

2 stops37h 20m

London Heathrow

Wed 27/8

18:40-10:25

2 stops30h 45m

$1,667

Flights are sorted by cheapest return flights first.

Deals found on 10/4

Showing 1-10 of 23 results
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2
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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 4 April 2025.

To ensure you get the cheapest price possible for a flight from Sydney to London Heathrow Airport, you should look to book at least 4 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 Sydney to London Heathrow Airport?

Currently, October is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $1,037). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,667). 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 April 2025.

It’s optimal to fly from Sydney to London Heathrow Airport in the evening. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight at midday.

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

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

Travellers 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 at midday 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

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 10 April 2025.

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).

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 April 2025.
See what other customers who have flown with Japan Airlines, China Airlines and Asiana Airlines from Sydney to London have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Food

7.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 20
2.0
Mediocre

Axel,Aug 2024

HND - JFK

The flight from Tokyo to NYC was operated by American Airlines. The airplane had the least amount of legroom I have experienced on a long-haul flight. My knees pushed into the seat in front of me. The cabin was freezing cold, and despite several passengers mentioning this to the crew, they didn’t do anything about it
Japan Airlines
8.3
Very Good
1,440 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Food

7.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 20
2.0
Mediocre

Axel,Aug 2024

HND - JFK

The flight from Tokyo to NYC was operated by American Airlines. The airplane had the least amount of legroom I have experienced on a long-haul flight. My knees pushed into the seat in front of me. The cabin was freezing cold, and despite several passengers mentioning this to the crew, they didn’t do anything about it
China Airlines
8.2
Very Good
726 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Food

7.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 20
2.0
Mediocre

Axel,Aug 2024

HND - JFK

The flight from Tokyo to NYC was operated by American Airlines. The airplane had the least amount of legroom I have experienced on a long-haul flight. My knees pushed into the seat in front of me. The cabin was freezing cold, and despite several passengers mentioning this to the crew, they didn’t do anything about it
Asiana Airlines
8.2
Very Good
438 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Food

7.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 20
2.0
Mediocre

Axel,Aug 2024

HND - JFK

The flight from Tokyo to NYC was operated by American Airlines. The airplane had the least amount of legroom I have experienced on a long-haul flight. My knees pushed into the seat in front of me. The cabin was freezing cold, and despite several passengers mentioning this to the crew, they didn’t do anything about it
Hainan Airlines
8.1
Very Good
37 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Food

7.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 20
2.0
Mediocre

Axel,Aug 2024

HND - JFK

The flight from Tokyo to NYC was operated by American Airlines. The airplane had the least amount of legroom I have experienced on a long-haul flight. My knees pushed into the seat in front of me. The cabin was freezing cold, and despite several passengers mentioning this to the crew, they didn’t do anything about it
Thai Airways
7.7
Good
321 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Food

7.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Crew

8.7

Overall

8.3

Reviews

1 / 20
2.0
Mediocre

Axel,Aug 2024

HND - JFK

The flight from Tokyo to NYC was operated by American Airlines. The airplane had the least amount of legroom I have experienced on a long-haul flight. My knees pushed into the seat in front of me. The cabin was freezing cold, and despite several passengers mentioning this to the crew, they didn’t do anything about it

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?

    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 27 airlines have flights from the Sydney airport to London Heathrow. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.

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

    Currently priced at $1,475, China Eastern will fly you from Sydney to London Heathrow Airport and back. In addition to China Eastern, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Malaysia Airlines and China Southern - these airlines can fly you to your destination from $1,493 and $1,508, respectively. China Eastern is 29% 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 cheapet airlines for a one-way flight from Sydney to London Heathrow Airport are Air China ($645), Hainan Airlines ($661), and China Southern ($724).

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

    While on average a flight from Sydney to London Heathrow Airport is generally $9,168, our data shows the cheapest flight currently is $1,427. When looking at the most popular route, (Sydney Kingsford Smith - London Heathrow), you can expect to pay $1,312 for that flight.

  • Where are the most common stopover locations when flying from Sydney to London Heathrow Airport?

    Of the flights from Sydney to London Heathrow Airport that have stopovers, most of them stop in Singapore. Singapore is followed by Hong Kong in terms of the most popular stopover location on flights from Sydney to London Heathrow Airport. Kuala Lumpur sees the third most stopovers on flights from Sydney to London Heathrow Airport.

  • What are some popular things to do or see while on a stopover in Singapore?

    Sentosa, Merlion, and Boat Quay are currently the most popular points of interest in Singapore at the moment. Sentosa, Merlion, and Boat Quay can be visited by traveling about 21.6 km, 16.9 km, and 17.3 km respectively from Singapore Changi. Travellers can rent a car at Singapore Changi for an average daily rate of $139 to make sightseeing during their stopover a little easier.

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

    Hong Kong Disneyland, Mid-levels Escalators, and Hong Kong Heritage Discovery Centre are the most popular attractions in Hong Kong if you're in need of something to do during your stopover. Hong Kong Disneyland, Mid-levels Escalators, and Hong Kong Heritage Discovery Centre can be accessed by travelling approximately 12.6 km, 24.5 km, and 25.8 km, respectively from Hong Kong Intl. Travellers can book a car hire at Hong Kong Intl for about $131 per day to make their sightseeing more efficient.

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

    Petronas Towers, Berjaya Times Square, and National Mosque of Malaysia are currently the most popular points of interest in Kuala Lumpur. Petronas Towers, Berjaya Times Square, and National Mosque of Malaysia can be visited by travelling about 46.6 km, 44.9 km, and 44.8 km respectively from Kuala Lumpur Intl. Travellers in need of a car in Kuala Lumpur can hire one for about $50 per day.

  • Where are the least popular stopover locations for Sydney to London Heathrow Airport flights?

    Flights departing from Sydney and landing in London Heathrow Airport stopover in Ho Chi Minh City least frequently. Los Angeles follows Ho Chi Minh City in terms of the least common stopover location on Sydney to London Heathrow Airport flights. Hanoi ranks third to last in terms of the least popular stopover locations on Sydney to London Heathrow Airport flights.

  • 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, October is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $1,037). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,667). 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 Sydney?

Book flights to Sydney if you plan to visit one of these locations
Gatwick
Salisbury
Hounslow
Southall
Chatham
Dover
Dorking
Canterbury
Andover
Cirencester
Hayes
Horley

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Fly from Sydney to Heathrow on these airlines

Choose from the following airlines for your flight from Sydney to Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 10 April 2025.
Singapore Airlines flights from Sydney Kingsford Smith to London Heathrow
Qantas Airways flights from Sydney Kingsford Smith to London Heathrow
British Airways flights from Sydney Kingsford Smith to London Heathrow

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 647,157 searches. Data last updated 10 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$1,217Average$1,531FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest$1,370Average$1,865FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air IndiaCheapest$1,407Average$1,809FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
China AirlinesCheapest$1,443Average$1,820FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
SriLankan AirlinesCheapest$1,511Average$1,775FlexibilityNo cancel feeOn-time68%
Search SriLankan Airlines flights
Turkish AirlinesCheapest$1,533Average$1,855FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Qatar AirwaysCheapest$1,550Average$2,139FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Vietnam AirlinesCheapest$1,551Average$2,088FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Japan AirlinesCheapest$1,551Average$2,198FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Asiana AirlinesCheapest$1,627Average$1,866FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Sydney to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Sydney today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Sydney to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Sydney to Heathrow with no change fees.

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

Yes, Cheapflights offers price alerts on Sydney to Heathrow 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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