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Cheap flights from Cardiff to Sydney from £447

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cardiff to Sydney departing on 20/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Cardiff to Sydney

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
17:15 - 06:10
CWL
-
SYD
27h 55m
2 stops
Multiple Airlines Logo
15:40 - 15:40
SYD
-
CWL
33h 00m
2 stops
£1,200Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
09:45 - 16:50
CWL
-
SYD
46h 05m
2 stops
Multiple Airlines Logo
20:50 - 09:15
SYD
-
CWL
45h 25m
2 stops
£1,204Multiple Airlines
Sat, 5 Sep - Sat, 12 Sep
KLM Logo
17:15 - 06:25
CWL
-
SYD
52h 10m
2 stops
KLM Logo
09:50 - 16:45
SYD
-
CWL
63h 55m
2 stops
£1,209KLM
Mon, 7 Sep - Mon, 14 Sep
KLM Logo
10:20 - 10:20
CWL
-
SYD
37h 00m
2 stops
KLM Logo
10:25 - 09:45
SYD
-
CWL
34h 20m
2 stops
£1,275KLM
Mon, 28 Dec - Fri, 29 Jan
KLM Logo
09:45 - 09:40
CWL
-
SYD
38h 55m
3 stops
KLM Logo
09:50 - 09:15
SYD
-
CWL
56h 25m
2 stops
£1,284KLM
Mon, 7 Sep - Mon, 14 Sep
KLM Logo
10:20 - 07:55
CWL
-
SYD
34h 35m
2 stops
KLM Logo
11:10 - 17:00
SYD
-
CWL
40h 50m
3 stops
£1,311KLM
Mon, 28 Dec - Fri, 29 Jan
KLM Logo
09:45 - 06:45
CWL
-
SYD
36h 00m
2 stops
KLM Logo
09:50 - 09:15
SYD
-
CWL
56h 25m
2 stops
£1,314KLM
Sat, 5 Sep - Sat, 12 Sep
Multiple Airlines Logo
10:20 - 07:20
CWL
-
SYD
58h 00m
3 stops
Multiple Airlines Logo
09:20 - 17:00
SYD
-
CWL
42h 40m
3 stops
£1,369Multiple Airlines
Mon, 28 Dec - Fri, 29 Jan
Multiple Airlines Logo
17:15 - 10:00
CWL
-
SYD
31h 45m
2 stops
Multiple Airlines Logo
21:00 - 16:45
SYD
-
CWL
52h 45m
3 stops
£1,409Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
KLM Logo
17:15 - 07:25
CWL
-
SYD
52h 10m
2 stops
KLM Logo
10:25 - 09:50
SYD
-
CWL
34h 25m
2 stops
£1,466KLM
Thu, 15 Oct - Thu, 29 Oct

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KLM flights from Cardiff to Sydney

Our best KLM deals on Cardiff to Sydney flight tickets
KLM
7 Sept
CWL17:15Cardiff Wales
52h 10m
2 stops
SYD06:25Sydney Kingsford Smith
14 Sept
SYD09:50Sydney Kingsford Smith
63h 55m
2 stops
CWL16:45Cardiff Wales
£1,209
KLM
28 Dec
CWL10:20Cardiff Wales
37h 00m
2 stops
SYD10:20Sydney Kingsford Smith
29 Jan
SYD10:25Sydney Kingsford Smith
34h 20m
2 stops
CWL09:45Cardiff Wales
£1,275
KLM
7 Sept
CWL09:45Cardiff Wales
38h 55m
3 stops
SYD09:40Sydney Kingsford Smith
14 Sept
SYD09:50Sydney Kingsford Smith
56h 25m
2 stops
CWL09:15Cardiff Wales
£1,284

momondo 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, momondo users made 279,928 searches. Data last updated 26 July 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
Fastest return journey

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Wed 9/9

17:15-06:10

2 stops27h 55m

Sydney Kingsford Smith

Wed 16/9

15:40-15:40

2 stops33h 00m

£1,200

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Sat 5/9

09:45-16:50

2 stops46h 05m

Sydney Kingsford Smith

Sat 12/9

20:50-09:15

2 stops45h 25m

£1,204

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 7/9

17:15-06:25

2 stops52h 10m

Sydney Kingsford Smith

Mon 14/9

09:50-16:45

2 stops63h 55m

£1,209

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 28/12

10:20-10:20

2 stops37h 00m

Sydney Kingsford Smith

Fri 29/1

10:25-09:45

2 stops34h 20m

£1,275

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 7/9

09:45-09:40

3 stops38h 55m

Sydney Kingsford Smith

Mon 14/9

09:50-09:15

2 stops56h 25m

£1,284

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 28/12

10:20-07:55

2 stops34h 35m

Sydney Kingsford Smith

Fri 29/1

11:10-17:00

3 stops40h 50m

£1,311

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Sat 5/9

09:45-06:45

2 stops36h 00m

Sydney Kingsford Smith

Sat 12/9

09:50-09:15

2 stops56h 25m

£1,314

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Mon 28/12

10:20-07:20

3 stops58h 00m

Sydney Kingsford Smith

Fri 29/1

09:20-17:00

3 stops42h 40m

£1,369

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Wed 9/9

17:15-10:00

2 stops31h 45m

Sydney Kingsford Smith

Wed 16/9

21:00-16:45

3 stops52h 45m

£1,409

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 15/10

17:15-07:25

2 stops52h 10m

Sydney Kingsford Smith

Thu 29/10

10:25-09:50

2 stops34h 25m

£1,466

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Cardiff to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

In general, June is the cheapest month to fly from Cardiff to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £0. If you don’t want to visit Sydney in June, then you should wait until May to fly from Cardiff, when ticket prices are also cheap, with an average price of £942.

When to book flights from Cardiff to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Cardiff to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Cardiff to Sydney (CWL to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cardiff to Sydney

Fastest flight time

34h 35m

Direct flights

None
The fastest flight from Cardiff to Sydney takes 34h 35m
There are no direct flights from Cardiff to Sydney. There are no popular flight routes from Cardiff to Sydney.
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Frequently asked questions about flying from Cardiff to Sydney

  • How far is Cardiff Wales to Sydney Kingsford Smith by plane?

    Cardiff Wales and Sydney Kingsford Smith are 10665.5 mi apart from one another. By plane, this route typically takes 34h 35m.

  • When did momondo last update prices for flights from Cardiff Wales Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Cardiff Wales Airport to Sydney Kingsford Smith Airport refresh daily.

  • How many operators does momondo search for flights from Cardiff Wales Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Cardiff Wales Airport to Sydney Kingsford Smith Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cardiff Wales Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Cardiff to Sydney?

Best airlines flying from Cardiff to Sydney

Compare and see reviews for airlines that fly from Cardiff to Sydney with momondo
Airline
Rating
Free Cancellation
Price
Etihad AirwaysPriceFrom £747Free CancellationRating
7.3
1,486 reviews
Search Etihad Airways flights
KLMPriceFrom £1,192Free CancellationRating
7.8
1,545 reviews
Search KLM flights

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Randwick
Cronulla
Coogee
Leura
Manly
Katoomba
Wollongong
Penrith
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Cardiff to Sydney?

Finding the right flight to Sydney from Cardiff is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Sydney quick and easy, saving you time and money.

Can I find flights from Cardiff to Sydney with flexible booking policies on momondo?

momondo does allow users to show only those flights to Sydney from Cardiff which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Cardiff to Sydney?

Once you have performed a search for Cardiff to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Cardiff to Sydney right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from Cardiff and alert you when they change.

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