Question 1

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

Accepted Answer

Our cheapest airline available from Sydney to London Heathrow Airport is China Eastern. Our recent data shows that you can find tickets from as low as £730 on this airline. Additional options worth looking into are Air China and China Southern, starting at £731 and £734 round-trip. China Eastern is currently priced 23% below the average price you’ll pay for this route.

Question 2

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

Accepted Answer

For one-way options, check prices for Vietnam Airlines. According to our data, you can fly for as low as £376. Users have also found prices from £377 and £382 on Etihad Airways and China Eastern, respectively.

Question 3

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

Accepted Answer

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 25 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 4

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

Accepted Answer

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.

Question 5

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

Accepted Answer

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.

Question 6

Weekly flight availability from Sydney to London Heathrow Airport

Accepted Answer

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).

Question 7

E

Accepted Answer

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.

Question 8

E

Accepted Answer

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).

Question 9

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

Accepted Answer

Looking at all options, your cheapest flight can be booked for £1,025. While the most popular route (Sydney Kingsford Smith - London Heathrow) can be booked for £615 on average our data indicates £1,463 when flying from Sydney to London Heathrow Airport.

Question 10

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

Accepted Answer

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.

Question 11

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

Accepted Answer

Users have found that flying from Sydney to London Heathrow Airport on a Friday 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.

Question 12

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

Accepted Answer

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 21% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £873 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £947.

Question 13

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

Accepted Answer

October can be a great time to fly to London Heathrow Airport from Sydney with a flight ticket averaging about £910. Cheapflights users have found deals in the month of October for as cheap as £600. The most expensive prices can be found in the month of December.

Question 14

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

Accepted Answer

It’s optimal to fly from Sydney to London Heathrow Airport in the morning. By choosing this option you can save up to 32% on the cost of your flight, compared to a flight in the afternoon.

Question 15

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

Accepted Answer

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.

Question 16

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

Accepted Answer

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

Question 17

How can I find direct flights from Sydney to Heathrow?

Accepted Answer

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

Question 18

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

Accepted Answer

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.

Question 19

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

Accepted Answer

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.

Question 20

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

Accepted Answer

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.

Question 21

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

Accepted Answer

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

Question 22

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

Accepted Answer

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.

Round-trip from	£730
One-way from	£376
Popular in	December
Cheapest in	October
Average price	£1,041
Good round-trip deal	£1,374 or less

Airline	Cheapest	Average	Flexibility	On-time
China Southern	Cheapest£591	Average£971	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
Air China	Cheapest£657	Average£838	FlexibilityNo cancel fee	On-time67%	Search Air China flights
China Eastern	Cheapest£671	Average£1,185	FlexibilityNo cancel fee	On-time62%	Search China Eastern flights
Air India	Cheapest£680	Average£850	FlexibilityNo cancel fee	On-timeN/A	Search Air India flights
Etihad Airways	Cheapest£712	Average£919	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
Turkish Airlines	Cheapest£721	Average£968	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights
Cathay Pacific	Cheapest£732	Average£925	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights
Qatar Airways	Cheapest£745	Average£942	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights
Malaysia Airlines	Cheapest£769	Average£1,002	FlexibilityNo cancel fee	On-time67%	Search Malaysia Airlines flights
Singapore Airlines	Cheapest£793	Average£1,014	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights

Cheap flights from Sydney to London Heathrow Airport from £376

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 17/9. 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 25 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Sydney to Heathrow

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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 11 juillet 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 11 juillet 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 27 June 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 11 juillet 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.

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 11 juillet 2025.

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

Reviews of airlines servicing Heathrow

See what other customers who have flown with Japan Airlines, Hainan Airlines, andChina Southern 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.

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?

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Alternative routes for Sydney to Heathrow

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Top 10 airlines flying from Sydney to Heathrow

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

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

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

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

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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 11 juillet 2025.