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 £689 on this airline. Additional options worth looking into are China Eastern and China Southern, starting at £691 and £705 round-trip. Air China is currently priced 31% 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 £319. Users have also found prices from £325 and £384 on Air China and China Eastern, respectively.

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

Looking at all options, your cheapest flight can be booked for £656. While the most popular route (Sydney Kingsford Smith - London Heathrow) can be booked for £646 on average our data indicates £886 when flying from Sydney to London Heathrow Airport.

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

Consider Air India, British Airways or Air China when booking your flight. These represent the most popular airlines when flying from Sydney to London Heathrow Airport.

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

Users have found that flying from Sydney to London Heathrow Airport on a Tuesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

October can be a great time to fly to London Heathrow Airport from Sydney with a flight ticket averaging about £957. Cheapflights users have found deals in the month of October for as cheap as £629. The most expensive prices can be found in the month of December.

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 2 outbound flights to London Heathrow per day. 16 airlines have flights to London Heathrow from Sydney Kingsford Smith on a regular basis.

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.

£288+ Flights from Sydney to London Heathrow Airport

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 Sunday or Tuesday and return on a Monday

Cheap flight deals from Sydney to Heathrow

Round-trip from	£689
One-way from	£288
Popular in	December
Cheapest in	October
Average price	£849
Good round-trip deal	£1,052 or less
Good one-way deal	£663 or less

Air China
17/6-7/9
2 total stops
62h 15m total
Sydney to London

Search Deals

15/6
3 total stops
42h 55m total
Sydney to London

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£96 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£26 potential savings vs. average return price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Price to beat on a round-trip flight from Sydney Kingsford Smith to London Heathrow.

Search Deals

Price to beat on a one-way flight from Sydney Kingsford Smith to London Heathrow.

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 25 March 2025.

Tue 17/619:40SYD - LHR

1 stop31h 05mAir China

Sun 7/922:40LHR - SYD

1 stop31h 10mAir China

Deal found 24/3£689

Thu 22/511:00SYD - LHR

1 stop40h 40mChina Eastern

Fri 13/621:20LHR - SYD

1 stop30h 15mChina Eastern

Deal found 24/3£691

Fri 9/510:05SYD - LHR

1 stop41h 55mChina Southern

Tue 13/522:10LHR - SYD

1 stop25h 15mChina Southern

Deal found 25/3£705

Mon 2/622:10SYD - LHR

1 stop27h 25mMalaysia Airlines

Wed 20/821:35LHR - SYD

1 stop27h 25mMalaysia Airlines

Deal found 25/3£724

Wed 14/512:00SYD - LHR

2 stops38h 45mMultiple Airlines

Wed 28/522:40LHR - SYD

2 stops34h 45mMultiple Airlines

Deal found 25/3£736

Wed 15/1021:55SYD - LHR

2 stops34h 30mTurkish Airlines

Wed 22/1006:30LHR - SYD

2 stops27h 30mTurkish Airlines

Deal found 25/3£752

Tue 13/521:00SYD - LHR

1 stop31h 30mHainan Airlines

Mon 2/622:00LHR - SYD

2 stops55h 15mHainan Airlines

Deal found 25/3£762

Mon 28/718:05SYD - LHR

1 stop30h 40mSingapore Airlines

Thu 28/811:25LHR - SYD

1 stop33h 30mSingapore Airlines

Deal found 24/3£769

Fri 9/522:10SYD - LHR

1 stop27h 20mChina Airlines

Fri 16/521:10LHR - SYD

1 stop28h 35mChina Airlines

Deal found 25/3£773

Tue 25/310:20SYD - LHR

1 stop42h 45mAsiana Airlines

Thu 3/420:40LHR - SYD

1 stop25h 50mAsiana Airlines

Deal found 23/3£798

Tue 1/411:10SYD - LHR

1 stop28h 30mCathay Pacific

Sat 31/517:00LHR - SYD

1 stop28h 10mCathay Pacific

Deal found 23/3£822

Best flights from Sydney to Heathrow
Discover carefully curated flight deals from Sydney to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 March 2025.

Tue 17/619:40SYD - LHR

1 stop31h 05mAir China

Sun 7/922:40LHR - SYD

1 stop31h 10mAir China

Deal found 24/3£689

Thu 22/511:00SYD - LHR

1 stop40h 40mChina Eastern

Fri 13/621:20LHR - SYD

1 stop30h 15mChina Eastern

Deal found 24/3£691

Fri 9/510:05SYD - LHR

1 stop41h 55mChina Southern

Tue 13/522:10LHR - SYD

1 stop25h 15mChina Southern

Deal found 25/3£705

Mon 2/622:10SYD - LHR

1 stop27h 25mMalaysia Airlines

Wed 20/821:35LHR - SYD

1 stop27h 25mMalaysia Airlines

Deal found 25/3£724

Wed 14/512:00SYD - LHR

2 stops38h 45mMultiple Airlines

Wed 28/522:40LHR - SYD

2 stops34h 45mMultiple Airlines

Deal found 25/3£736

Tue 13/521:00SYD - LHR

1 stop31h 30mHainan Airlines

Mon 2/622:00LHR - SYD

2 stops55h 15mHainan Airlines

Deal found 25/3£762

Tue 17/608:55SYD - LHR

1 stop44h 00mJapan Airlines

Wed 25/609:20LHR - SYD

1 stop36h 00mJapan Airlines

Deal found 25/3£768

Mon 28/718:05SYD - LHR

1 stop30h 40mSingapore Airlines

Thu 28/811:25LHR - SYD

1 stop33h 30mSingapore Airlines

Deal found 24/3£769

Fri 9/522:10SYD - LHR

1 stop27h 20mChina Airlines

Fri 16/521:10LHR - SYD

1 stop28h 35mChina Airlines

Deal found 25/3£773

Tue 10/620:55SYD - LHR

2 stops27h 10mTurkish Airlines

Mon 30/616:40LHR - SYD

2 stops41h 20mTurkish Airlines

Deal found 24/3£790

Mon 11/821:50SYD - LHR

1 stop26h 25mCathay Pacific

Sun 7/917:00LHR - SYD

1 stop30h 40mCathay Pacific

Deal found 24/3£822

Direct flights from Sydney to Heathrow
Explore direct flight options from Sydney to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 March 2025.

Fri 5/914:40SYD - LHR

Nonstop23h 45mBritish Airways

Tue 23/921:20LHR - SYD

Nonstop23h 00mBritish Airways

Deal found 25/3£976

Tue 13/514:50SYD - LHR

Nonstop24h 45mQantas Airways

Mon 2/620:50LHR - SYD

Nonstop23h 20mQantas Airways

Deal found 25/3£1,005

Last-minute flights from Sydney to Heathrow
Discover last-minute flight deals from Sydney to Heathrow. Data last updated 25 March 2025 and is based on user searches.

Tue 25/310:20SYD - LHR

1 stop42h 45mAsiana Airlines

Thu 3/420:40LHR - SYD

1 stop25h 50mAsiana Airlines

Deal found 23/3£798

Tue 25/322:10SYD - LHR

1 stop29h 45mChina Airlines

Mon 31/321:10LHR - SYD

1 stop28h 35mChina Airlines

Deal found 25/3£827

Thu 27/321:00SYD - LHR

2 stops31h 35mHainan Airlines

Mon 31/322:00LHR - SYD

2 stops55h 15mHainan Airlines

Deal found 24/3£943

Fri 28/320:50SYD - LHR

2 stops48h 55mSichuan Airlines

Fri 4/406:30LHR - SYD

2 stops46h 45mSichuan Airlines

Deal found 24/3£950

Fri 28/317:10SYD - LHR

1 stop26h 30mSriLankan Airlines

Sun 4/521:30LHR - SYD

1 stop32h 25mSriLankan Airlines

Deal found 24/3£1,002

Sun 30/310:20SYD - LHR

1 stop37h 00mAir Canada

Sun 6/409:30LHR - SYD

3 stops36h 50mAir Canada

Deal found 25/3£1,273

Mon 31/312:20SYD - LHR

3 stops40h 20mChina Eastern

Sat 31/521:20LHR - SYD

1 stop30h 15mChina Eastern

Deal found 23/3£702

Mon 31/310:30SYD - LHR

1 stop42h 20mAsiana Airlines

Mon 7/420:40LHR - SYD

1 stop25h 50mAsiana Airlines

Deal found 23/3£890

Mon 31/311:20SYD - LHR

1 stop33h 50mUnited Airlines

Fri 4/416:40LHR - SYD

2 stops53h 15mUnited Airlines

Deal found 24/3£1,067

Mon 31/321:45SYD - LHR

1 stop26h 25mQatar Airways

Fri 4/417:00LHR - SYD

1 stop39h 10mQatar Airways

Deal found 24/3£1,245

Tue 1/411:10SYD - LHR

1 stop28h 30mCathay Pacific

Sat 31/517:00LHR - SYD

1 stop28h 10mCathay Pacific

Deal found 23/3£822

Tue 1/411:20SYD - LHR

1 stop29h 10mBritish Airways

Sat 5/417:00LHR - SYD

1 stop39h 10mBritish Airways

Deal found 25/3£1,075

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 25 March 2025.

Sun 15/609:15SYD - LHR

3 stops42h 55mMultiple Airlines

Deal found 24/3£288

Thu 3/421:00SYD - LHR

2 stops32h 30mHainan Airlines

Deal found 24/3£319

Thu 1/519:40SYD - LHR

1 stop33h 50mAir China

Deal found 24/3£325

Fri 23/511:00SYD - LHR

1 stop40h 40mChina Eastern

Deal found 24/3£384

Sat 24/521:45SYD - LHR

1 stop30h 15mChina Southern

Deal found 25/3£394

Mon 26/510:15SYD - LHR

1 stop40h 35mVietnam Airlines

Deal found 24/3£404

Thu 17/722:10SYD - LHR

1 stop27h 20mChina Airlines

Deal found 24/3£406

Tue 15/722:10SYD - LHR

1 stop27h 25mMalaysia Airlines

Deal found 24/3£431

Sun 6/408:55SYD - LHR

1 stop39h 55mJapan Airlines

Deal found 24/3£470

Tue 9/921:30SYD - LHR

1 stop30h 15mEtihad Airways

Deal found 25/3£476

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

Tue 17/6

19:40-17:45

1 stop31h 05m

London Heathrow

Sun 7/9

22:40-14:50

1 stop31h 10m

£689

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Thu 22/5

11:00-18:40

1 stop40h 40m

London Heathrow

Fri 13/6

21:20-12:35

1 stop30h 15m

£691

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 9/5

10:05-19:00

1 stop41h 55m

London Heathrow

Tue 13/5

22:10-08:25

1 stop25h 15m

£705

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 2/6

22:10-16:35

1 stop27h 25m

London Heathrow

Wed 20/8

21:35-10:00

1 stop27h 25m

£724

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Wed 14/5

12:00-17:45

2 stops38h 45m

London Heathrow

Wed 28/5

22:40-18:25

2 stops34h 45m

£736

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 13/5

21:00-19:30

1 stop31h 30m

London Heathrow

Mon 2/6

22:00-14:15

2 stops55h 15m

£762

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 17/6

08:55-19:55

1 stop44h 00m

London Heathrow

Wed 25/6

09:20-06:20

1 stop36h 00m

£768

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Mon 28/7

18:05-15:45

1 stop30h 40m

London Heathrow

Thu 28/8

11:25-05:55

1 stop33h 30m

£769

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Fri 9/5

22:10-16:30

1 stop27h 20m

London Heathrow

Fri 16/5

21:10-10:45

1 stop28h 35m

£773

SydneyLondon

SYD - LHR

SYDLHR

Sydney Kingsford Smith

Tue 10/6

20:55-15:05

2 stops27h 10m

London Heathrow

Mon 30/6

16:40-19:00

2 stops41h 20m

£790

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 21 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 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 4 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, January is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of £112). Flying from Sydney to London Heathrow Airport in August is currently the most expensive (average of £164). 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 optimal to fly from Sydney to London Heathrow Airport in the morning. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight in the afternoon.

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

Travellers seeking maximum savings on their Sydney to London Heathrow Airport flight should consider departing on Sunday evenings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Heathrow 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

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

Read reviews from past customers who have flown Japan Airlines, China Airlines and Singapore Airlines from Sydney to London. 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

Reviews

1 / 20

10.0

Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority

Japan Airlines

8.3

Very Good

1,440 reviews

Japan Airlines

8.3

Very Good

1,440 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

mark,Nov 2024

YVR - NRT

China Airlines

8.2

Very Good

722 reviews

Japan Airlines

8.3

Very Good

1,440 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

mark,Nov 2024

YVR - NRT

Singapore Airlines

8.1

Very Good

1,284 reviews

Japan Airlines

8.3

Very Good

1,440 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

mark,Nov 2024

YVR - NRT

Hainan Airlines

7.8

Good

32 reviews

Japan Airlines

8.3

Very Good

1,440 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

mark,Nov 2024

YVR - NRT

Vietnam Airlines

7.6

Good

192 reviews

Japan Airlines

8.3

Very Good

1,440 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

mark,Nov 2024

YVR - NRT

Related info for your journey

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 2 outbound flights to London Heathrow per day. 16 airlines have flights to London Heathrow from Sydney Kingsford Smith on a regular basis.
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 £689 on this airline. Additional options worth looking into are China Eastern and China Southern, starting at £691 and £705 round-trip. Air China is currently priced 31% 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 £319. Users have also found prices from £325 and £384 on Air China and China Eastern, respectively.
What are the cheapest flights from Sydney to London Heathrow Airport?
Looking at all options, your cheapest flight can be booked for £656. While the most popular route (Sydney Kingsford Smith - London Heathrow) can be booked for £646 on average our data indicates £886 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, January is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of £112). Flying from Sydney to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Deal

Milton Keynes

Gatwick

Croydon

Luton

Slough

Eastbourne

Wembley

Northampton

Swindon

Hayes

Ilford

Crawley

Southend-on-Sea

Winchester

Maidstone

Ipswich

Watford

Southall

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from Sydney to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Air China	Cheapest£609	Average£880	FlexibilityNo cancel fee	On-time67%	Search Air China flights
China Southern	Cheapest£621	Average£1,006	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
China Airlines	Cheapest£700	Average£896	FlexibilityNo cancel fee	On-time70%	Search China Airlines flights
China Eastern	Cheapest£733	Average£1,128	FlexibilityNo cancel fee	On-time62%	Search China Eastern flights
Air India	Cheapest£734	Average£876	FlexibilityNo cancel fee	On-timeN/A	Search Air India flights
Etihad Airways	Cheapest£749	Average£1,000	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
Turkish Airlines	Cheapest£758	Average£1,148	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights
Cathay Pacific	Cheapest£772	Average£955	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights
Qatar Airways	Cheapest£783	Average£1,166	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights
Asiana Airlines	Cheapest£794	Average£801	FlexibilityNo cancel fee	On-time76%	Search Asiana Airlines flights

Fly with Cheapflights

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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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.

Cheap flights from Sydney to London Heathrow Airport from £288

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 15/6. Fares are subject to change and may not be available on all flights or dates of travel.

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 Sunday or Tuesday and return on a Monday

Cheap flight deals from Sydney to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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 25 March 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 25 March 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 return flight from Sydney to Heathrow. Price data was last updated on 21 March 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 25 March 2025.

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.

Rainfall in Heathrow by month

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

Temperature in Heathrow by month

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

Reviews of airlines servicing Heathrow

Read reviews from past customers who have flown Japan Airlines, China Airlines and Singapore Airlines from Sydney to London. In addition to providing an overall rating, 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?

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

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?

Travelling 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 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

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.

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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 25 March 2025.