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Cheap flights from Cardiff to Sydney from £1,494

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SYD
2 Nov — 9 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Cardiff to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 October 2025.

Round-trip from

£1,494

Popular in

December

Cheapest in

April

Average price

£1,164
1/11-29/11
  • 1/11-29/11
  • 4 total stops
  • 91h 45m total
  • Cardiff to Sydney
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£153 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£24 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find flight deals from Cardiff to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Cardiff to Sydney
Explore the most affordable flight options available from Cardiff to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 October 2025.

Sat 1/1110:20CWL - SYD
2 stops33h 15mMultiple Airlines
Sat 29/1110:20SYD - CWL
2 stops58h 30mMultiple Airlines
Deal found 1/10£1,494
Sat 15/1117:25CWL - SYD
2 stops51h 10mMultiple Airlines
Sat 22/1112:10SYD - CWL
2 stops63h 35mMultiple Airlines
Deal found 1/10£6,894
Sat 15/1117:25CWL - SYD
2 stops51h 10mKLM
Sat 22/1106:35SYD - CWL
3 stops38h 15mKLM
Deal found 1/10£8,981

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 October 2025.
Use the filters below to find and compare flights from Cardiff to Sydney that are best for you.

Fly from

Cardiff

Fly to

Sydney

Route

Depart

Return

Price

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Sat 1/11

10:20-06:35

2 stops33h 15m

Sydney Kingsford Smith

Sat 29/11

10:20-09:50

2 stops58h 30m

£1,494

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Sat 15/11

17:25-07:35

2 stops51h 10m

Sydney Kingsford Smith

Sat 22/11

12:10-16:45

2 stops63h 35m

£6,894

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 26/2

17:25-07:25

2 stops27h 00m

Sydney Kingsford Smith

Wed 11/3

11:30-09:50

2 stops33h 20m

£8,597

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 26/2

10:20-06:35

3 stops33h 15m

Sydney Kingsford Smith

Wed 11/3

14:30-09:50

2 stops30h 20m

£8,782

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Sat 15/11

17:25-07:35

2 stops51h 10m

Sydney Kingsford Smith

Sat 22/11

06:35-09:50

3 stops38h 15m

£8,981

Flights are sorted by cheapest return flights first.

Deals found on 1/10

Best time to book a flight from Cardiff to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Cardiff with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Cardiff to Sydney

What is the cheapest month to book a flight from Cardiff to Sydney?

Currently, May is the cheapest month in which you can book a flight from Cardiff to Sydney (average of £985). Flying from Cardiff to Sydney in July is currently the most expensive (average of £1,728). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CWL to SYD?

Find hourly flight availability from Cardiff to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 October 2025.

It’s typically best to fly out from Cardiff to Sydney in the morning. Doing so could potentially save you 17% on the flight price compared to flying at midday, which is usually more expensive.

How much does it cost for a return flight from Cardiff to Sydney?

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 3 October 2025.
Get a feel of what it's like to fly with KLM and Etihad Airways from Cardiff to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,389 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
10.0
Excellent

Bobby,Sept 2025

EDI - ATL

Food was above average but could be better, The flight was operated by Delta and was excellent
KLM
7.8
Good
1,389 reviews
KLM
7.8
Good
1,389 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
10.0
Excellent

Bobby,Sept 2025

EDI - ATL

Food was above average but could be better, The flight was operated by Delta and was excellent
Etihad Airways
7.4
Good
1,267 reviews
KLM
7.8
Good
1,389 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
10.0
Excellent

Bobby,Sept 2025

EDI - ATL

Food was above average but could be better, The flight was operated by Delta and was excellent

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Cardiff to Sydney?

    There are many flights that can get you from Cardiff to Sydney in 27h. Fly via KLM to get the fastest option. Airlines will cover a distance of 10677 mi.

  • What are the cheapest airlines flying from Cardiff to Sydney round-trip?

    Cheapflights users have booked flights from Cardiff to Sydney round-trip from £978. Another airline that can offer you cheap pricing is KLM. Users have found that Etihad Airways is 27% cheaper than the other options available to this destination.

  • Can I find deals for flights from Cardiff to Sydney that include hotel bookings?

    Yes. In addition to deals on Cardiff to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cardiff to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Sydney.

  • Can I find deals for business class flights from Cardiff to Sydney?

    Yes. Cheapflights offers flight deals from Cardiff to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cardiff to Sydney?

    Currently, May is the cheapest month in which you can book a flight from Cardiff to Sydney (average of £985). Flying from Cardiff to Sydney in July is currently the most expensive (average of £1,728). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Coogee
Manly

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Cardiff to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Cardiff to Sydney

Discover the top 2 airlines that operate flights from Cardiff to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest£978Average£1,166FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
KLMCheapest£1,180Average£1,580FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Cardiff to Sydney?

When you search for this flight from Cardiff to Sydney, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Sydney?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Cardiff to Sydney for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Cardiff to Sydney with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Cardiff to Sydney flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Cardiff to Sydney become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Cardiff today and book when prices fit your budget.

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