Cheap flights from Sydney to London from £302
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 11/7. 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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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 £770. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Sydney averaging around £795.
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 Wednesday. momondo users have found tickets for Wednesday departures for as low as £1,060. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Monday is £1,368.
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 £937. 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 £1,362 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 £959 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 £874 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.
Can stopping save me money on Sydney to London Heathrow Airport flights?
You could potentially save up to 4% on your flight if you consider stops on a Sydney to London Heathrow Airport flight.
How have Sydney to London Heathrow Airport flight prices changed over time?
As of June 2025, prices for Sydney to London Heathrow Airport flights are approximately 26% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Sydney Kingsford Smith to London Heathrow?
Hainan Airlines, Air China, and Vietnam Airlines are the most popular carriers operating from Sydney Kingsford Smith to London Heathrow
Which airlines fly to London Heathrow Airport?
British Airways, Cathay Pacific and China Southern are the top three most popular airlines that fly to London Heathrow Airport from Sydney according to our data. British Airways is the first choice among our users, with 38% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 14 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Sydney to London Heathrow Airport on average per day?
As of June 2025, there are 3 flights per day flying from Sydney to London Heathrow Airport. The most common time of day flights depart is 14:00, with 100% of flights taking off in the afternoon.
How many flights depart from Sydney to London Heathrow Airport on average per week?
As of June 2025, there are 21 flights per week flying from Sydney to London Heathrow Airport. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.
When to book flights from Sydney to London Heathrow Airport
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
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 27h 10m 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?
There are 14 operators available for flights from Sydney Kingsford Smith Airport to London Heathrow Airport as of June 2025.
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?
Based on momondo bookings for flights between Sydney and London Heathrow Airport, the leading plane model is Airbus A380-800, making up 97.97% of the total bookings. Other popular models include Boeing 787-9 Dreamliner with 1.52% and Boeing 777-300ER with 0.51%.
What is the most popular airline from Sydney to London Heathrow Airport?
momondo data reveals that the most frequently booked airline on the route from Sydney to London Heathrow Airport is British Airways, representing 19% of all bookings. The subsequent popular airlines are Cathay Pacific at 13%, China Southern at 10%, and Singapore Airlines at 9%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom £591 | Free Cancellation | Rating 7.5 99 reviews | |||
| PriceFrom £657 | Free Cancellation | Rating 7.2 92 reviews | |||
| PriceFrom £680 | Free Cancellation | Rating 5.5 2,914 reviews | |||
| PriceFrom £686 | Free Cancellation | Rating 7.2 150 reviews | |||
| PriceFrom £712 | Free Cancellation | Rating 7.4 1,211 reviews | |||
| PriceFrom £722 | Free Cancellation | Rating 7.3 3,848 reviews | |||
| PriceFrom £732 | Free Cancellation | Rating 7.5 892 reviews | |||
| PriceFrom £745 | Free Cancellation | Rating 7.4 3,584 reviews | |||
| PriceFrom £769 | Free Cancellation | Rating 7.4 263 reviews | |||
| PriceFrom £793 | Free Cancellation | Rating 8.1 1,304 reviews |
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 £1,864. Our users have rated Qantas Airways at 7.5/10.
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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.