Cheap flights from Cardiff to Sydney
Cheap return flights from Cardiff to Sydney
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Sydney flight facts
What you need to know
What are the cheapest airlines?
- Qantas
- British Airways
- Emirates
These airlines usually offer the cheapest flights from Cardiff to Sydney.
What airlines fly indirectly?
- Singapore Airlines
- Cathay Pacific
- Etihad Airways
These airlines fly from Cardiff to Sydney, but you’ll have at least one layover.
How long is the flight?
24 hours
This is the shortest flight time from Cardiff to Sydney.
Alternative flights from the UK to Sydney
Check out prices for other routes
Alternative flights from Cardiff
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 Cardiff/Sydney route. There are around 35 flights on any given week from the UK to Sydney 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 Cardiff to Sydney
Tips and advice from our flight experts
You've searched for flights from Cardiff to Sydney. We've found 15 flights and compared them to give you the best offer. 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 Cardiff to Sydney on 09/04/2026 at 06:05 for £41.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 8 airlines that operate the 17,000 km flight from Cardiff to Sydney.
To find the best offers, consider booking 2-3 months in advance or look for last-minute deals. Check out Qantas for affordable options, and remember the average flight duration is around 24 hours. After selecting an offer, fill out your information, proceed to payment, and consider booking a hotel with us or using our flight + hotel service to save time and money.
Other popular destinations near Sydney
Where other people are flying to
