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Cheap flights from Sydney to London from £300

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to London departing on 18/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

These are some of the best return flight deals from Sydney to London that have been recently found on momondo from popular airlines, departing in the coming months.
China Southern Logo
22:15 - 19:00SYD-LHR
30h 45m1 stop
China Southern Logo
22:00 - 20:20LHR-SYD
35h 20m1 stop
£625China Southern
Find Deal
Mon, 13 Oct - Fri, 7 Nov
China Southern Logo
21:45 - 19:00SYD-LHR
30h 15m1 stop
China Southern Logo
22:10 - 19:40LHR-SYD
36h 30m1 stop
£626China Southern
Find Deal
Sun, 15 Jun - Fri, 20 Jun
China Eastern Logo
11:00 - 18:40SYD-LHR
40h 40m1 stop
China Eastern Logo
21:20 - 09:00LHR-SYD
26h 40m1 stop
£636China Eastern
Find Deal
Thu, 22 May - Thu, 12 Jun
China Eastern Logo
11:20 - 18:40SYD-LHR
40h 20m2 stops
China Eastern Logo
21:20 - 09:00LHR-SYD
26h 40m1 stop
£641China Eastern
Find Deal
Thu, 22 May - Thu, 12 Jun
China Eastern Logo
11:00 - 18:40SYD-LHR
40h 40m1 stop
China Eastern Logo
21:20 - 12:35LHR-SYD
30h 15m1 stop
£647China Eastern
Find Deal
Tue, 10 Jun - Tue, 24 Jun
Etihad Airways Logo
21:30 - 15:15SYD-LHR
27h 45m1 stop
Etihad Airways Logo
20:55 - 06:10LHR-SYD
22h 15m1 stop
£673Etihad Airways
Find Deal
Mon, 6 Oct - Mon, 10 Nov
Etihad Airways Logo
21:30 - 18:45SYD-LHR
30h 15m1 stop
Etihad Airways Logo
21:45 - 16:55LHR-SYD
34h 10m1 stop
£677Etihad Airways
Find Deal
Mon, 12 May - Thu, 15 May
Cathay Pacific Logo
07:40 - 20:35SYD-LHR
45h 55m1 stop
Cathay Pacific Logo
18:20 - 10:50LHR-SYD
31h 30m1 stop
£729Cathay Pacific
Find Deal
Tue, 20 May - Fri, 20 Jun
Cathay Pacific Logo
21:50 - 20:35SYD-LHR
31h 45m1 stop
Cathay Pacific Logo
22:15 - 06:10LHR-SYD
22h 55m1 stop
£743Cathay Pacific
Find Deal
Wed, 21 May - Wed, 20 Aug
Qantas Airways Logo
15:50 - 06:35SYD-LHR
24h 45mdirect
Qantas Airways Logo
20:10 - 06:30LHR-SYD
23h 20mdirect
£789Qantas Airways
Find Deal
Mon, 6 Oct - Mon, 24 Nov

Etihad Airways flights from Sydney to London Heathrow Airport

Our best Etihad Airways deals on Sydney to London Heathrow Airport flight tickets
Etihad Airways
6 Oct
SYD21:30Sydney Kingsford Smith
27h 45m
1 stop
LHR15:15London Heathrow
10 Nov
LHR20:55London Heathrow
22h 15m
1 stop
SYD06:10Sydney Kingsford Smith
Etihad Airways
12 May
SYD21:30Sydney Kingsford Smith
30h 15m
1 stop
LHR18:45London Heathrow
15 May
LHR21:45London Heathrow
34h 10m
1 stop
SYD16:55Sydney Kingsford Smith
Etihad Airways
20 May
SYD21:30Sydney Kingsford Smith
30h 15m
1 stop
LHR18:45London Heathrow
24 May
LHR21:45London Heathrow
34h 10m
1 stop
SYD16:55Sydney Kingsford Smith

China Southern flights from Sydney to London Heathrow Airport

Our best China Southern deals on Sydney to London Heathrow Airport flight tickets
China Southern
13 Oct
SYD22:15Sydney Kingsford Smith
30h 45m
1 stop
LHR19:00London Heathrow
7 Nov
LHR22:00London Heathrow
35h 20m
1 stop
SYD20:20Sydney Kingsford Smith
China Southern
15 Jun
SYD21:45Sydney Kingsford Smith
30h 15m
1 stop
LHR19:00London Heathrow
20 Jun
LHR22:10London Heathrow
36h 30m
1 stop
SYD19:40Sydney Kingsford Smith
China Southern
26 Oct
SYD22:00Sydney Kingsford Smith
31h 15m
1 stop
LHR18:15London Heathrow
1 Nov
LHR22:00London Heathrow
24h 25m
1 stop
SYD09:25Sydney Kingsford Smith

See travel insights to London from

How to get the cheapest flight ticket from Sydney to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Sydney and London Heathrow Airport?

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

In general, October is the cheapest month to fly from Sydney to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £790. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Sydney averaging around £805.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Sydney is on a Friday. momondo users have found tickets for Friday departures for as low as £1,055. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £1,241.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Sydney to London Heathrow Airport in the morning for as low as £949. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £1,268 on average. Flights to London Heathrow Airport from Sydney in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Sydney Kingsford Smith to London Heathrow flight route?

Fly from Sydney Kingsford Smith to London Heathrow for the best Sydney Kingsford Smith - London Heathrow flight prices

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

You are more likely to see cheaper flights to London Heathrow Airport from Sydney when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £969 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Sydney for as low as £926 on momondo.

What cabin class options are available on Sydney Kingsford Smith to London Heathrow flights?

There are 3 cabin classes available to choose from on Sydney Kingsford Smith to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Sydney to London Heathrow Airport flight prices changed over time?

As of April 2025, prices for Sydney to London Heathrow Airport flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from Sydney to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Sydney to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Sydney to London Heathrow Airport (SYD to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sydney to London Heathrow Airport

Best price found

£300

Fastest flight time

24h 15m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Sydney in the past 72 hours is £300. The best return flight deal from Sydney to London Heathrow Airport found on momondo in the last 72 hours is £625.
The fastest flight from Sydney to London Heathrow Airport takes 24h 15m
Direct flights go from Sydney to London Heathrow Airport every day.

  • How far is Sydney Kingsford Smith to London Heathrow by plane?

    A flight from Sydney Kingsford Smith to London Heathrow will travel around 10566.1 mi. Typically, this will take 24h 15m by plane in normal conditions.

  • When did momondo last update prices for flights from Sydney Kingsford Smith Airport to London Heathrow Airport?

    Prices for flights from Sydney Kingsford Smith Airport to London Heathrow Airport were last updated today.

  • How many operators does momondo search for flights from Sydney Kingsford Smith Airport to London Heathrow Airport?

  • How old do you have to be to fly from Sydney Kingsford Smith Airport to London Heathrow Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sydney Kingsford Smith Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Sydney to London Heathrow Airport?

  • What is the most popular airline from Sydney to London Heathrow Airport?


Best airlines flying from Sydney to London Heathrow Airport

Compare and see reviews for airlines that fly from Sydney to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
China SouthernPriceFrom £599Free CancellationRating
7.5
96 reviews
Search China Southern flights
Air ChinaPriceFrom £618Free CancellationRating
7.2
88 reviews
Search Air China flights
China AirlinesPriceFrom £675Free CancellationRating
8.3
732 reviews
Search China Airlines flights
China EasternPriceFrom £707Free CancellationRating
7.1
148 reviews
Search China Eastern flights
Air IndiaPriceFrom £708Free CancellationRating
5.5
2,899 reviews
Search Air India flights
Etihad AirwaysPriceFrom £723Free CancellationRating
7.4
1,203 reviews
Search Etihad Airways flights
Turkish AirlinesPriceFrom £731Free CancellationRating
7.3
3,790 reviews
Search Turkish Airlines flights
Cathay PacificPriceFrom £742Free CancellationRating
7.5
852 reviews
Search Cathay Pacific flights
Singapore AirlinesPriceFrom £804Free CancellationRating
8.1
1,292 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom £815Free CancellationRating
7.3
254 reviews
Search Malaysia Airlines flights
  • Qantas Airways Flights From Sydney to London Heathrow Airport

    Qantas Airways is one of the most popular airlines flying from Sydney to London Heathrow Airport, operating 7 flights/week on average for this route. A good Qantas Airways flight deal for Sydney to London Heathrow Airport starts from £1,263 round-trip, up to an average price of £1,868. Our users have rated Qantas Airways at 7.5/10.


Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Slough
Southend-on-Sea
Stratford-upon-Avon
Swindon
Northampton
Maidstone
Gatwick
Ipswich
Canterbury
Margate
Ilford
Dartford
Hounslow
Salisbury
Colchester
Guildford
Worthing

Why use momondo?

Why should I use momondo to find a flight deal from Sydney to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Sydney.

Can I find flights from Sydney to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from Sydney with this policy.

How can momondo help me find flights from Sydney to London?

momondo helps you find the best flight between Sydney and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Sydney to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Sydney to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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