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Cheap flights from Cardiff to Sydney from £1,264

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SYD
21 Mar — 28 Mar1
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 February 2026.

Wed 18/210:20
CWL
-
SYD
2 stops34h 35m
KLM
Wed 25/216:15
SYD
-
CWL
2 stops28h 35m
KLM
Deal found 17/2£1,264
Sun 5/409:50
CWL
-
SYD
2 stops35h 35m
Multiple Airlines
Sun 12/420:30
SYD
-
CWL
3 stops53h 15m
Multiple Airlines
Deal found 19/2£1,270
Fri 27/217:15
CWL
-
SYD
3 stops30h 30m
Multiple Airlines
Sat 14/310:20
SYD
-
CWL
2 stops34h 30m
Multiple Airlines
Deal found 18/2£1,351
Fri 3/417:15
CWL
-
SYD
2 stops27h 55m
Multiple Airlines
Fri 10/415:40
SYD
-
CWL
2 stops34h 25m
Multiple Airlines
Deal found 17/2£1,399
Wed 18/210:20
CWL
-
SYD
3 stops35h 15m
Multiple Airlines
Wed 25/206:35
SYD
-
CWL
3 stops38h 15m
Multiple Airlines
Deal found 17/2£1,530
Thu 2/417:15
CWL
-
SYD
2 stops38h 55m
Multiple Airlines
Thu 9/420:45
SYD
-
CWL
2 stops29h 00m
Multiple Airlines
Deal found 16/2£1,559

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 February 2026.

Round-trip from

£1,270

Popular in

December

Cheapest in

April

Average price

£1,389
Air France
  • Air France
  • 5/4-12/4
  • 5 total stops
  • 88h 50m total
  • Cardiff to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£93 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 February 2026.
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

Sun 5/4

09:50-06:25

2 stops35h 35m

Sydney Kingsford Smith

Sun 12/4

20:30-16:45

3 stops53h 15m

£1,270

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Fri 3/4

17:15-07:10

2 stops27h 55m

Sydney Kingsford Smith

Fri 10/4

15:40-17:05

2 stops34h 25m

£1,399

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 2/4

17:15-18:10

2 stops38h 55m

Sydney Kingsford Smith

Thu 9/4

20:45-16:45

2 stops29h 00m

£1,559

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Tue 9/6

09:45-16:45

2 stops46h 00m

Sydney Kingsford Smith

Tue 16/6

11:00-09:15

2 stops31h 15m

£1,686

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 18/5

17:15-16:45

2 stops38h 30m

Sydney Kingsford Smith

Mon 25/5

18:00-09:15

2 stops48h 15m

£1,707

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Sat 4/4

09:45-08:00

2 stops36h 15m

Sydney Kingsford Smith

Sat 11/4

22:10-09:15

2 stops44h 05m

£1,739

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Sat 4/4

09:45-13:35

3 stops41h 50m

Sydney Kingsford Smith

Sat 11/4

14:15-09:15

2 stops28h 00m

£1,740

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 26/2

10:20-20:20

2 stops47h 00m

£1,587

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Fri 27/2

10:20-20:20

3 stops47h 00m

£2,735

Flights are sorted by cheapest return flights first.

Deals found on 18/2

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, March is the cheapest month in which you can book a flight from Cardiff to Sydney (average of £735). Flying from Cardiff to Sydney in January is currently the most expensive (average of £1,206). 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.

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 February 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
7.7
Good
1,459 reviews
Check prices

Comfort

7.6

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.7
Good
1,459 reviews
KLM
7.7
Good
1,459 reviews
Check prices

Comfort

7.6

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Etihad Airways
7.3
Good
1,403 reviews
KLM
7.7
Good
1,459 reviews
Check prices

Comfort

7.6

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.3

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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.

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

    Cheapflights users have booked flights from Cardiff to Sydney round-trip from £735. 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, March is the cheapest month in which you can book a flight from Cardiff to Sydney (average of £735). Flying from Cardiff to Sydney in January is currently the most expensive (average of £1,206). 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
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
Bristol to Sydney flights
Manchester to Coolangatta 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 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest£735Average£1,198FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
KLMCheapest£1,159Average£1,511FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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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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