Cheap flights from Sydney to London
Cheap return flights from Sydney to London
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
London flight facts
What you need to know
What are the cheapest airlines?
- Qantas
- British Airways
- Singapore Airlines
These airlines usually offer the cheapest flights from Sydney to London.
What airlines fly indirectly?
- Emirates
- Cathay Pacific
- Etihad Airways
These airlines fly from Sydney to London, but you’ll have at least one layover.
How long is the flight?
22 hours
This is the shortest flight time from Sydney to London.
Alternative flights from the UK to London
Check out prices for other routes
Alternative flights from Sydney
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Sydney/London route. There are around 35 flights on any given week from the UK to London and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from Sydney to London
Tips and advice from our flight experts
You've searched for flights from Sydney to London. We've found 50 flights and compared them to give you the best offers. On average, Qantas is the cheapest airline for this route, so keep an eye on them. The cheapest offer we've found is a one-way ticket for the route Sydney to London on 10/02/2026 at 09:50 for £77.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 10 airlines that operate the 17,000 km flight from Sydney to London.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. Traveling during off-peak seasons can also save you money. A popular and affordable airline for this route is Qantas, with an average flight duration of 22 hours. After selecting an offer, fill out your information and proceed to payment. Don't forget to check our hotel booking options or our flight + hotel service to save time and money.
Other popular destinations near London
Where other people are flying to
