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Cheap flights from Cardiff to Sydney from £1,262

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SYD
18 Jun — 25 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap 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 19 May 2026.

Wed 10/609:45
CWL
-
SYD
2 stops41h 50m
Multiple Airlines
Wed 24/620:30
SYD
-
CWL
2 stops53h 15m
Multiple Airlines
Deal found 17/5£1,262
Thu 21/517:15
CWL
-
SYD
2 stops28h 05m
KLM
Thu 28/509:50
SYD
-
CWL
2 stops56h 25m
KLM
Deal found 16/5£1,266
Thu 4/617:15
CWL
-
SYD
2 stops26h 55m
KLM
Sun 14/609:50
SYD
-
CWL
2 stops39h 55m
KLM
Deal found 16/5£1,270
Mon 29/609:45
CWL
-
SYD
2 stops41h 50m
Multiple Airlines
Mon 6/721:00
SYD
-
CWL
2 stops45h 15m
Multiple Airlines
Deal found 15/5£1,322
Mon 19/1017:15
CWL
-
SYD
2 stops31h 45m
Multiple Airlines
Sun 13/1210:20
SYD
-
CWL
2 stops34h 30m
Multiple Airlines
Deal found 18/5£1,376
Sat 23/517:35
CWL
-
SYD
2 stops51h 50m
KLM
Sat 30/522:10
SYD
-
CWL
2 stops44h 05m
KLM
Deal found 18/5£1,434
Thu 2/717:15
CWL
-
SYD
2 stops27h 55m
Multiple Airlines
Thu 9/720:45
SYD
-
CWL
2 stops29h 00m
Multiple Airlines
Deal found 18/5£1,457
Wed 10/617:15
CWL
-
SYD
3 stops28h 55m
KLM
Wed 24/607:55
SYD
-
CWL
2 stops34h 20m
KLM
Deal found 17/5£1,521

Find 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 19 May 2026.

Round-trip from

£1,262

Popular in

December

Cheapest in

May

Average price

£1,167
10/6-24/6
  • 10/6-24/6
  • 4 total stops
  • 95h 05m total
  • Cardiff to Sydney
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£80 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 19 May 2026.
Use the filters below to find and compare flights from Cardiff to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Wed 10/6

09:45-12:35

2 stops41h 50m

Sydney Kingsford Smith

Wed 24/6

20:30-16:45

2 stops53h 15m

£1,262

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 4/6

17:15-05:10

2 stops26h 55m

Sydney Kingsford Smith

Sun 14/6

09:50-16:45

2 stops39h 55m

£1,270

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 29/6

09:45-12:35

2 stops41h 50m

Sydney Kingsford Smith

Mon 6/7

21:00-09:15

2 stops45h 15m

£1,322

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 19/10

17:15-11:00

2 stops31h 45m

Sydney Kingsford Smith

Sun 13/12

10:20-09:50

2 stops34h 30m

£1,376
Fastest return journey

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Wed 10/6

17:15-07:10

3 stops28h 55m

Sydney Kingsford Smith

Wed 24/6

07:55-09:15

2 stops34h 20m

£1,521

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 19/10

17:15-10:40

3 stops31h 25m

Sydney Kingsford Smith

Sun 13/12

11:45-09:50

3 stops33h 05m

£1,722

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 2/7

17:15-06:20

2 stops28h 05m

Sydney Kingsford Smith

Thu 9/7

10:10-16:45

3 stops39h 35m

£1,756
Cheapest one-way
Fastest single journey

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 1/6

11:35-06:35

2 stops34h 00m

£2,330

Flights are sorted by cheapest return flights first.

Deals found on 18/5

Sorted by cheapest first

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 £1,167). Flying from Cardiff to Sydney in December is currently the most expensive (average of £1,731). 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.

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 19 May 2026.
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
1,517 reviews
Check prices

Crew

8.4

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,517 reviews
KLM
7.8
Good
1,517 reviews
Check prices

Crew

8.4

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Etihad Airways
7.3
Good
1,438 reviews
KLM
7.8
Good
1,517 reviews
Check prices

Crew

8.4

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 26h 55m. 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 £745. Another airline that can offer you cheap pricing is KLM. Users have found that Etihad Airways is 44% 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 £1,167). Flying from Cardiff to Sydney in December is currently the most expensive (average of £1,731). 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
Wollongong
Parramatta
Coogee
Manly

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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.
Manchester to Sydney flights
Manchester to Coolangatta flights
Bristol to Sydney flights

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 19 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest£745Average£1,263FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
KLMCheapest£1,167Average£1,518FlexibilityNo 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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