Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Cardiff to Sydney from £803

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 4/5. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Cardiff to Sydney

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
23:30 - 16:50
CWL
-
SYD
32h 20m
2 stops
Multiple Airlines Logo
20:45 - 22:25
SYD
-
CWL
34h 40m
2 stops
£1,123Multiple Airlines
Wed, 20 May - Wed, 27 May
Multiple Airlines Logo
21:45 - 16:50
CWL
-
SYD
34h 05m
2 stops
Multiple Airlines Logo
15:40 - 16:45
SYD
-
CWL
34h 05m
2 stops
£1,196Multiple Airlines
Sun, 31 May - Sun, 7 Jun
KLM Logo
09:45 - 10:45
CWL
-
SYD
64h 00m
2 stops
KLM Logo
13:05 - 09:15
SYD
-
CWL
29h 10m
2 stops
£1,344KLM
Tue, 1 Sep - Tue, 15 Sep
Multiple Airlines Logo
22:50 - 16:50
CWL
-
SYD
33h 00m
2 stops
Multiple Airlines Logo
06:00 - 22:25
SYD
-
CWL
25h 25m
2 stops
£1,364Multiple Airlines
Thu, 28 May - Thu, 4 Jun
KLM Logo
17:15 - 07:10
CWL
-
SYD
28h 55m
3 stops
KLM Logo
13:05 - 09:15
SYD
-
CWL
29h 10m
2 stops
£1,561KLM
Tue, 1 Sep - Tue, 15 Sep
Multiple Airlines Logo
17:15 - 06:05
CWL
-
SYD
27h 50m
2 stops
Multiple Airlines Logo
06:00 - 17:05
SYD
-
CWL
44h 05m
2 stops
£1,666Multiple Airlines
Fri, 29 May - Fri, 5 Jun
KLM Logo
17:15 - 07:10
CWL
-
SYD
28h 55m
3 stops
KLM Logo
10:20 - 16:45
SYD
-
CWL
39h 25m
2 stops
£1,697KLM
Wed, 20 May - Wed, 27 May
KLM Logo
17:15 - 06:45
CWL
-
SYD
28h 30m
2 stops
KLM Logo
10:10 - 16:45
SYD
-
CWL
39h 35m
3 stops
£1,734KLM
Thu, 28 May - Thu, 4 Jun
KLM Logo
17:15 - 06:25
CWL
-
SYD
28h 10m
2 stops
KLM Logo
10:10 - 17:05
SYD
-
CWL
39h 55m
3 stops
£1,810KLM
Fri, 29 May - Fri, 5 Jun
Multiple Airlines Logo
17:15 - 06:25
CWL
-
SYD
28h 10m
2 stops
Multiple Airlines Logo
16:25 - 16:45
SYD
-
CWL
57h 20m
3 stops
£1,819Multiple Airlines
Sun, 31 May - Sun, 7 Jun

KLM flights from Cardiff to Sydney

Our best KLM deals on Cardiff to Sydney flight tickets
KLM
1 Sept
CWL09:45Cardiff Wales
64h 00m
2 stops
SYD10:45Sydney Kingsford Smith
15 Sept
SYD13:05Sydney Kingsford Smith
29h 10m
2 stops
CWL09:15Cardiff Wales
£1,344
KLM
1 Sept
CWL17:15Cardiff Wales
28h 55m
3 stops
SYD07:10Sydney Kingsford Smith
15 Sept
SYD13:05Sydney Kingsford Smith
29h 10m
2 stops
CWL09:15Cardiff Wales
£1,561
KLM
20 May
CWL17:15Cardiff Wales
28h 55m
3 stops
SYD07:10Sydney Kingsford Smith
27 May
SYD10:20Sydney Kingsford Smith
39h 25m
2 stops
CWL16:45Cardiff Wales
£1,697

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 16 April 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 20/5

23:30-16:50

2 stops32h 20m

Sydney Kingsford Smith

Wed 27/5

20:45-22:25

2 stops34h 40m

£1,123

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Sun 31/5

21:45-16:50

2 stops34h 05m

Sydney Kingsford Smith

Sun 7/6

15:40-16:45

2 stops34h 05m

£1,196

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Tue 1/9

09:45-10:45

2 stops64h 00m

Sydney Kingsford Smith

Tue 15/9

13:05-09:15

2 stops29h 10m

£1,344

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 28/5

22:50-16:50

2 stops33h 00m

Sydney Kingsford Smith

Thu 4/6

06:00-22:25

2 stops25h 25m

£1,364
Fastest return journey

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Tue 1/9

17:15-07:10

3 stops28h 55m

Sydney Kingsford Smith

Tue 15/9

13:05-09:15

2 stops29h 10m

£1,561

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Fri 29/5

17:15-06:05

2 stops27h 50m

Sydney Kingsford Smith

Fri 5/6

06:00-17:05

2 stops44h 05m

£1,666

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Wed 20/5

17:15-07:10

3 stops28h 55m

Sydney Kingsford Smith

Wed 27/5

10:20-16:45

2 stops39h 25m

£1,697

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Thu 28/5

17:15-06:45

2 stops28h 30m

Sydney Kingsford Smith

Thu 4/6

10:10-16:45

3 stops39h 35m

£1,734

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Fri 29/5

17:15-06:25

2 stops28h 10m

Sydney Kingsford Smith

Fri 5/6

10:10-17:05

3 stops39h 55m

£1,810

CardiffSydney

CWL - SYD

CWLSYD

Cardiff Wales

Sun 31/5

17:15-06:25

2 stops28h 10m

Sydney Kingsford Smith

Sun 7/6

16:25-16:45

3 stops57h 20m

£1,819

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

See travel insights to Sydney from

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 typical price of a round-trip flight between Cardiff and Sydney?

What is the cheapest month to fly to Sydney?

In general, May 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 £1,152. If you don’t want to visit Sydney in May, then you should wait until April to fly from Cardiff, when ticket prices are also cheap, with an average price of £1,212.

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

31h 05m

Direct flights

None
The fastest flight from Cardiff to Sydney takes 31h 05m
There are no direct flights from Cardiff to Sydney. There are no popular flight routes from Cardiff to Sydney.
Search flight deals

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 31h 05m.

  • 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 £735Free CancellationRating
7.3
1,430 reviews
Search Etihad Airways flights
KLMPriceFrom £1,152Free CancellationRating
7.8
1,499 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
Wollongong
Randwick
Coogee
Leura
Penrith
Manly
Katoomba
Cronulla
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.

An easier way to manage your Sydney trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 16/5
Sat 23/5
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia