CWL - SYD

£871 Find Cheap Flights from Cardiff to Sydney

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cardiff to Sydney departing on 19/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Sydney, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£871
Typical prices: £1,351-£928
Multiple Airlines
Tue 19/5Tue 26/5
CWL - SYD • 2 stops
Top airlines
Cheapest • from £1,273 (return)
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Cardiff and Sydney. You’ll need at least 2 connections.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Cardiff to Sydney (CWL-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Cardiff to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Cardiff to Sydney

Tue, 19 May - Tue, 26 May
Multiple Airlines Logo
23:15 - 16:50
CWL
-
SYD
32h 35m
2 stops
Multiple Airlines Logo
20:50 - 23:05
SYD
-
CWL
35h 15m
2 stops
£871Multiple Airlines
Sun, 17 May - Sun, 24 May
Multiple Airlines Logo
17:15 - 06:10
CWL
-
SYD
27h 55m
2 stops
Multiple Airlines Logo
15:40 - 16:45
SYD
-
CWL
34h 05m
2 stops
£1,177Multiple Airlines
Mon, 21 Sep - Mon, 5 Oct
KLM Logo
17:15 - 06:45
CWL
-
SYD
28h 30m
2 stops
KLM Logo
14:05 - 09:15
SYD
-
CWL
29h 10m
2 stops
£1,273KLM
Tue, 19 May - Tue, 26 May
Multiple Airlines Logo
17:15 - 06:30
CWL
-
SYD
28h 15m
3 stops
Multiple Airlines Logo
09:50 - 09:15
SYD
-
CWL
56h 25m
2 stops
£1,411Multiple Airlines
Mon, 21 Sep - Mon, 5 Oct
KLM Logo
17:15 - 09:40
CWL
-
SYD
31h 25m
3 stops
KLM Logo
14:05 - 09:15
SYD
-
CWL
29h 10m
2 stops
£1,417KLM
Sun, 17 May - Sun, 24 May
Multiple Airlines Logo
09:50 - 06:25
CWL
-
SYD
35h 35m
2 stops
Multiple Airlines Logo
16:25 - 16:45
SYD
-
CWL
57h 20m
3 stops
£1,464Multiple Airlines
Sun, 20 Sep - Sun, 11 Oct
Singapore Airlines Logo
17:15 - 16:45
CWL
-
SYD
38h 30m
2 stops
Singapore Airlines Logo
12:00 - 09:15
SYD
-
CWL
31h 15m
2 stops
£1,857Singapore Airlines
Mon, 21 Sep - Mon, 5 Oct
Multiple Airlines Logo
17:15 - 09:40
CWL
-
SYD
31h 25m
3 stops
Multiple Airlines Logo
15:05 - 16:45
SYD
-
CWL
35h 40m
3 stops
£2,024Multiple Airlines
Sun, 17 May - Sun, 24 May
KLM Logo
17:15 - 07:10
CWL
-
SYD
28h 55m
3 stops
KLM Logo
11:40 - 16:45
SYD
-
CWL
38h 05m
3 stops
£2,092KLM
Mon, 20 Jul - Fri, 14 Aug
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
£2,187Multiple Airlines
Booking Insights

KAYAK’s insights & trends for Cardiff to Sydney flights

Get data-powered insights and trends into flights from Cardiff to Sydney to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Cardiff to Sydney?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Cardiff to Sydney departing in May.

What is the cheapest month to fly from Cardiff to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Cardiff to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Cardiff to Sydney is May, where tickets cost £1,182 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £1,739 and £1,551 respectively.

Good to know - Cheap tickets from Cardiff to Sydney

Low seasonApril
Cheapest flight£871
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (27% more expensive on average)
Flight from Cardiff to Sydney

When to book flights from Cardiff to Sydney

Are your dates flexible? Find out the best times to travel from Cardiff to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Cardiff to Sydney

  • What is the cheapest flight from Cardiff to Sydney?

    In the last 3 days, the lowest price for a flight from Cardiff to Sydney was £871 for a return ticket.

  • Which airports will I be using when flying from Cardiff to Sydney?

    Cardiff and Sydney are both served by 1 main airport. You will leave Cardiff from Cardiff Wales and will be arriving at Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from Cardiff to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Cardiff to Sydney?

    SkyTeam is the only airline alliance operating flights between Cardiff and Sydney.

  • Which is the best airline for flights from Cardiff to Sydney, KLM or Etihad Airways?

    The two airlines most popular with KAYAK users for flights from Cardiff to Sydney are KLM and Etihad Airways. With an average price for the route of £1,552 and an overall rating of 7.7, KLM is the most popular choice. Etihad Airways is also a great choice for the route, with an average price of £1,281 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Cardiff to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cardiff to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cardiff to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Cardiff is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cardiff to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sydney with an airline and back to Cardiff with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cardiff to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Cardiff up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Cardiff to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Cardiff to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Cardiff to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
KLMOverall score based on 1487 reviews
8.4Crew
7.6Comfort
7.3Food
7.8Boarding
7.1Entertainment
Airline reviews

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

6.0 GoodGlenn, Feb 2026
AMS - JFK
Read more KLM reviews

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Empty seats next to me - wish it had been for a longer flight!!

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

I liked the crew, the food and the foot space. I did not like the comfort of the seats.

Good one but just notice that you have to ask several time to get water or coffee .

Early arrival. Good boarding. Deplaning this flight is very slow both coming and going. Baggage arrived quickly for Pearson

The crew could have been more friendly and could have offered to make the beds. Also, Ethiad should have more vegetarian food options.

From the start of my vacation at Logan Airport, Boston it was chaotic. I'm praying my flight home is better .I'm grateful that we landed safe

The flight was over 1 hour late taking off ,when I arrived in Abu Dhabi ,I missed my connecting flight to Bangkok so I had to wait almost 6 hours for my flight arriving in Bangkok at 6:30 am ,So I missed a whole day of my vacation and my hotel room sat empty so I paid for hotel days that I was not there. In Abu Dhabi there was a woman that worked the desk at transfers that was so professional, courteous , helpful,and may I say absolutely beautiful .she got me food vouchers for my layover and was a very calming presence. Besides that I will never use Etihad again I will pay the Xtra money . I'm sure they won't read or see this but it's my "2 cents" I'll use an airline that respects me and my hard earned dollars

We have paid premium price for a business class Cabinet and we have received the old 777 with the following apart business class that is not to standard. It was very disappointing and it’s a very bad reputation for a premium airline company. This aeroplane should be the commission from being as a business class. We will pass this knowledge to our colleagues because the quality of business class in Etihad is not consistent and it is a lucky dip that sometimes you’re getting a good aeroplane and sometimes you’re getting their 30 years old aeroplane. The crew of the aeroplane have apologise and said that they hate this aeroplane and they have complained about it multiple times as well. Obviously Etihad is putting the economy in front of the Customer Experience. For the future we will not take this risk anymore and will fly with established company like emirates.

It was fantastic. The flight from Chicago to Abu Dahbi was fantastic. The crew, food and service were amazing. Everything was handled by the crew member assigned to us , Nicholas, was usually done before we asked for it. Highly recommend Etihad!

Was so disappointing. Business class with no TV, uncomfortable seats. Had much higher expectations.

Etihad Check In counter/Station manager in Heathrow was bothering and not helpful at all. They are rude and not customer oriented

Everything you need to know for your flight from Cardiff to Sydney

Information on your arrival and departure airports