Find flights
When to book
FAQs

Cheap flights from Cardiff to Sydney from $1,985

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/4. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — SYD
16 Apr — 23 Apr1
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 17 March 2026.

Thu 30/422:50
CWL
-
SYD
2 stops33h 00m
Multiple Airlines
Thu 7/520:50
SYD
-
CWL
2 stops34h 30m
Multiple Airlines
Deal found 16/3$1,985
Wed 29/409:45
CWL
-
SYD
2 stops36h 00m
Multiple Airlines
Wed 6/514:45
SYD
-
CWL
2 stops35h 00m
Multiple Airlines
Deal found 15/3$2,343
Tue 7/417:15
CWL
-
SYD
2 stops38h 35m
Multiple Airlines
Tue 21/415:40
SYD
-
CWL
2 stops34h 05m
Multiple Airlines
Deal found 15/3$2,684
Mon 27/417:15
CWL
-
SYD
2 stops27h 55m
Multiple Airlines
Mon 4/515:40
SYD
-
CWL
2 stops34h 05m
Multiple Airlines
Deal found 13/3$3,013
Wed 29/417:15
CWL
-
SYD
3 stops28h 55m
KLM
Wed 6/514:45
SYD
-
CWL
2 stops35h 00m
KLM
Deal found 15/3$3,050
Tue 17/310:20
CWL
-
SYD
2 stops45h 50m
Multiple Airlines
Fri 17/415:40
SYD
-
CWL
2 stops34h 25m
Multiple Airlines
Deal found 12/3$3,127
Thu 9/417:15
CWL
-
SYD
2 stops27h 50m
Multiple Airlines
Sat 25/421:10
SYD
-
CWL
2 stops28h 35m
Multiple Airlines
Deal found 16/3$3,341

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 17 March 2026.

Round-trip from

$1,985

Popular in

December

Cheapest in

April

Average price

$2,289
30/4-7/5
  • 30/4-7/5
  • 4 total stops
  • 67h 30m total
  • Cardiff to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($329 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($97 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 17 March 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 7/4

17:15-16:50

2 stops38h 35m

Sydney Kingsford Smith

Tue 21/4

15:40-16:45

2 stops34h 05m

$2,685
Fastest return journey

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 27/4

17:15-06:10

2 stops27h 55m

Sydney Kingsford Smith

Mon 4/5

15:40-16:45

2 stops34h 05m

$3,013

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Wed 29/4

17:15-07:10

3 stops28h 55m

Sydney Kingsford Smith

Wed 6/5

14:45-16:45

2 stops35h 00m

$3,050

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 9/4

17:15-06:45

2 stops28h 30m

Sydney Kingsford Smith

Sat 25/4

16:25-16:45

3 stops57h 20m

$3,367

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Tue 21/4

17:15-19:15

2 stops41h 00m

Sydney Kingsford Smith

Tue 12/5

18:00-09:15

2 stops48h 15m

$5,926

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 9/4

17:15-06:30

3 stops28h 15m

Sydney Kingsford Smith

Sat 25/4

06:15-16:45

3 stops43h 30m

$6,004

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 2/4

17:15-17:45

2 stops38h 30m

Sydney Kingsford Smith

Sun 12/4

18:00-09:15

2 stops48h 15m

$6,664

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 30/3

17:15-17:45

2 stops38h 30m

Sydney Kingsford Smith

Thu 30/4

11:00-09:15

2 stops31h 15m

$6,725

Flights are sorted by cheapest return flights first.

Deals found on 16/3

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, March is the cheapest month in which you can book a flight from Cardiff to Sydney (average of $1,414). Flying from Cardiff to Sydney in January is currently the most expensive (average of $2,315). 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.

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 28h 55m. 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, March is the cheapest month in which you can book a flight from Cardiff to Sydney (average of $1,414). Flying from Cardiff to Sydney in January is currently the most expensive (average of $2,315). 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
Manly
Terrigal
Lithgow
Bondi Beach
Coogee
Cronulla
Leura
Randwick

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

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?

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.