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Cheap flights from Cardiff to Sydney from $2,593

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SYD
15 Jul — 22 Jul1
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 15 June 2026.

Tue 3/1117:30
CWL
-
SYD
2 stops27h 25m
KLM
Thu 10/1216:15
SYD
-
CWL
2 stops35h 45m
KLM
Deal found 11/6$2,593
Mon 15/617:15
CWL
-
SYD
2 stops52h 10m
KLM
Mon 22/610:20
SYD
-
CWL
2 stops39h 25m
KLM
Deal found 10/6$2,785
Wed 17/609:45
CWL
-
SYD
2 stops35h 40m
KLM
Tue 23/614:45
SYD
-
CWL
2 stops35h 00m
KLM
Deal found 13/6$2,795
Tue 3/1117:30
CWL
-
SYD
3 stops26h 55m
Multiple Airlines
Thu 10/1206:35
SYD
-
CWL
3 stops45h 25m
Multiple Airlines
Deal found 11/6$2,796
Wed 1/717:15
CWL
-
SYD
2 stops58h 20m
Air France
Fri 17/711:00
SYD
-
CWL
2 stops62h 45m
Air France
Deal found 13/6$2,993
Fri 19/609:45
CWL
-
SYD
2 stops64h 00m
KLM
Fri 26/609:50
SYD
-
CWL
2 stops56h 25m
KLM
Deal found 14/6$3,203
Thu 9/709:45
CWL
-
SYD
2 stops38h 15m
Air France
Thu 30/720:30
SYD
-
CWL
2 stops53h 35m
Air France
Deal found 15/6$3,274
Mon 10/817:15
CWL
-
SYD
2 stops27h 55m
Multiple Airlines
Sun 16/820:45
SYD
-
CWL
2 stops29h 00m
Multiple Airlines
Deal found 12/6$3,438
Sun 26/717:15
CWL
-
SYD
2 stops28h 30m
Multiple Airlines
Sun 2/809:15
SYD
-
CWL
2 stops33h 00m
Multiple Airlines
Deal found 11/6$3,525

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 15 June 2026.

Round-trip from

$2,593

Popular in

July

Cheapest in

May

Average price

$2,403
KLM
  • KLM
  • 3/11-10/12
  • 4 total stops
  • 63h 10m total
  • Cardiff to Sydney
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($205 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($86 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 647,157 searches. Data last updated 15 June 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

Tue 3/11

17:30-07:25

3 stops26h 55m

Sydney Kingsford Smith

Thu 10/12

06:35-17:00

3 stops45h 25m

$2,796

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Tue 3/11

17:30-07:55

2 stops27h 25m

Sydney Kingsford Smith

Thu 10/12

06:35-17:00

3 stops45h 25m

$2,824

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 10/8

17:15-06:10

2 stops27h 55m

Sydney Kingsford Smith

Sun 16/8

20:45-16:45

2 stops29h 00m

$3,438
Fastest return journey

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Sun 26/7

17:15-05:10

3 stops26h 55m

Sydney Kingsford Smith

Sun 2/8

13:05-09:15

2 stops29h 10m

$3,566

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 9/7

17:15-11:45

3 stops33h 30m

Sydney Kingsford Smith

Thu 30/7

08:35-15:10

3 stops39h 35m

$3,660

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Wed 1/7

09:45-06:25

2 stops35h 40m

Sydney Kingsford Smith

Fri 17/7

10:10-17:05

3 stops39h 55m

$3,688

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 10/8

17:15-09:40

3 stops31h 25m

Sydney Kingsford Smith

Sun 16/8

11:40-09:15

3 stops30h 35m

$4,515

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 20/7

11:35-06:35

2 stops34h 00m

Sydney Kingsford Smith

Wed 29/7

20:30-10:15

2 stops70h 45m

$9,335

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 20/7

11:35-06:35

2 stops34h 00m

Sydney Kingsford Smith

Mon 27/7

20:30-10:15

2 stops70h 45m

$9,554
Cheapest one-way
Fastest single journey

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Sat 15/8

11:35-06:35

2 stops34h 00m

$4,615

Flights are sorted by cheapest return flights first.

Deals found on 11/6

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 $1,758). Flying from Cardiff to Sydney in July is currently the most expensive (average of $3,221). 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?

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?

    Departing from Cardiff to Sydney will take you 27h 25m. The distance between Cardiff and Sydney is about 17183 km.

  • 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 $1,758). Flying from Cardiff to Sydney in July is currently the most expensive (average of $3,221). 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
Parramatta
Wollongong
Penrith
Katoomba
Cronulla
Manly
Terrigal
Lithgow
Randwick
Bondi Beach
Leura
Coogee

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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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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?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sydney from Cardiff.

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

Yes! Cheapflights helps users easily find flights from Cardiff to Sydney with no change fees.

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

Yes! Start tracking prices for Cardiff to Sydney flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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