Cheap flights from Sydney to London Heathrow

Q: What are the cheapest airlines?

British Airways, Turkish Airlines. These airlines usually offer the cheapest flights from Sydney to London Heathrow.

Q: What airlines fly indirectly?

British Airways, Qantas, Qatar Airways, Etihad Airways, Turkish Airlines. These airlines fly from Sydney to London Heathrow, but you’ll have at least one layover.

Q: How long is the flight?

24 hrs 5 mins. This is the shortest flight time from Sydney to London Heathrow.

from as little as £816

11 nights in London, departing Sydney on 07 / Feb / 2025 with Turkish Airlines (price found 22 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from Sydney to London Heathrow

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The Sydney / London Heathrow route

All 17034 km of it

Cheap flight deals for this route

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London Heathrow flight facts

What you need to know

What are the cheapest airlines?

British Airways
Turkish Airlines

These airlines usually offer the cheapest flights from Sydney to London Heathrow.

What airlines fly indirectly?

British Airways
Qantas
Qatar Airways
Etihad Airways
Turkish Airlines

These airlines fly from Sydney to London Heathrow, but you’ll have at least one layover.

How long is the flight?

24 hrs 5 mins

This is the shortest flight time from Sydney to London Heathrow.

Alternative flights from the UK to London Heathrow

Check out prices for other routes

Sydney to London City Airport

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Sydney to London Gatwick

from £1,021 pp

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Sydney to London Stansted

from £1,033 pp

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Alternative flights from Sydney

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07 / Feb / 2025 is currently the lowest priced day of the year to fly the Sydney/London Heathrow route. There are around 27 flights on any given week from the UK to London Heathrow and the cheapest month to fly right now is February.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)

LOWEST

2 °C

AVG

11 °C

HIGHEST

24 °C

Rainfall (mm)

LOWEST

38.1 mm

AVG

52.5 mm

HIGHEST

66 mm

Key facts about London Heathrow

Currency

British pound

Language

English

Timezone

0 hrs behind GMT

How to get cheap flights from Sydney to London Heathrow

Tips and advice from our flight experts

There are nine airlines offering flights to London. The most direct route isn’t necessarily the cheapest – being flexible is key to finding the lowest airfare rates. For example, try searching by month to see the best time of the week to fly. The cheapest date is currently 07 / Feb / 2025.

You can use the filters on your search to see more flights and find cheaper rates – London has more than one airport. So if you don't need to fly into London Heathrow, it's worth checking your other options. The 17034 km flight usually takes about 27 hrs 45 mins.

There are about 27 flights to or via London every week, so you have plenty of options. Keep your eye out for flights with British Airways, Qantas and Qatar Airways – these are the most popular airlines for flying to .

During this peak season, hotel and holiday prices often increase too, so it's best to book early. Or you could keep your fingers crossed and hold out for a last-minute deal.