Cheap flights from Cardiff to Sydney

Destination name

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.

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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.