CWL - SYD

£1,018 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 15/4. 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
£1,018
Overall average: £1,124
Multiple Airlines
Wed 15/4Wed 22/4
CWL - SYD • 2 stops
Top airlines
Air France
Cheapest • from £1,194 (return)
KLM
Best reviews • 7.8 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
April
Cheapest • 15% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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

Wed, 15 Apr - Wed, 22 Apr
Multiple Airlines Logo
23:50 - 17:10
CWL
-
SYD
32h 20m
2 stops
Multiple Airlines Logo
20:45 - 22:25
SYD
-
CWL
34h 40m
2 stops
£1,018Multiple Airlines
Wed, 10 Jun - Thu, 3 Sep
Air France Logo
17:15 - 06:45
CWL
-
SYD
28h 30m
2 stops
Air France Logo
14:45 - 16:45
SYD
-
CWL
35h 00m
2 stops
£1,194Air France
Sun, 19 Apr - Sun, 26 Apr
Multiple Airlines Logo
17:15 - 06:10
CWL
-
SYD
27h 55m
2 stops
Multiple Airlines Logo
21:05 - 21:45
SYD
-
CWL
33h 40m
3 stops
£1,410Multiple Airlines
Sun, 19 Apr - Sun, 26 Apr
Multiple Airlines Logo
09:35 - 17:10
CWL
-
SYD
46h 35m
2 stops
Multiple Airlines Logo
20:45 - 14:20
SYD
-
CWL
50h 35m
2 stops
£1,427Multiple Airlines
Wed, 10 Jun - Thu, 3 Sep
KLM Logo
17:15 - 06:30
CWL
-
SYD
28h 15m
3 stops
KLM Logo
13:05 - 16:45
SYD
-
CWL
36h 40m
2 stops
£1,467KLM
Wed, 1 Apr - Wed, 8 Apr
Multiple Airlines Logo
17:15 - 06:35
CWL
-
SYD
27h 20m
2 stops
Multiple Airlines Logo
15:40 - 16:45
SYD
-
CWL
34h 05m
2 stops
£1,495Multiple Airlines
Sun, 5 Apr - Sun, 12 Apr
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
£1,511Multiple Airlines
Sun, 5 Apr - Sun, 12 Apr
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
£1,514Multiple Airlines
Wed, 15 Apr - Wed, 22 Apr
Multiple Airlines Logo
09:45 - 06:25
CWL
-
SYD
35h 40m
2 stops
Multiple Airlines Logo
06:15 - 16:45
SYD
-
CWL
43h 30m
3 stops
£1,519Multiple Airlines
Wed, 10 Jun - Thu, 3 Sep
KLM Logo
17:15 - 06:30
CWL
-
SYD
28h 15m
3 stops
KLM Logo
10:10 - 16:45
SYD
-
CWL
39h 35m
3 stops
£1,575KLM
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.

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 April, where tickets cost £1,124 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £1,712 and £1,527 respectively.

Good to know - Cheap tickets from Cardiff to Sydney

Low seasonApril
Cheapest flight£1,018
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly and prices are also 10% lower 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 £1,018 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 £1,527 and an overall rating of 7.8, KLM is the most popular choice. Etihad Airways is also a great choice for the route, with an average price of £1,206 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.
7.8
KLMOverall score based on 1468 reviews
7.8Boarding
7.6Comfort
7.1Entertainment
7.3Food
8.4Crew
Airline reviews

It was really nice journey i personally recommend klm flight

10.0 Excellentsmit, Mar 2026
AMD - BLR
Read more KLM reviews

It was really nice journey i personally recommend klm flight

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

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.

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

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.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

It was excellent service in the snow storm gives us hotel and transportation. It will be more better if u can add one more meal because it’s a long flight boring journey. If you give extra meal time passes faster and can enjoy the trip better

Food quality and varites were very minimum. Surprised to have no desserts. Business class tickets should have lounge access and seats selection. They should be allowed to board while people with wheel chair, secial assistance and family with childrem.

Business class ticket should include lounge access and seat selection. The food quality and varieties should be more. It was surpirise that no dessert was offered.

No entertainment except on app. No outlets working to charge. Good service

Good flight. There were a few issues with the flat bed. It was some technical issues. Otherwise everything was good

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

I booked and paid for a Business Class seat for myself and my wife. 4 hours before the flight i get a call saying the plane they sent doesn't have the correct layout to accommodate all the business class seats they sold me 3 months earlier at a premium of $1500 a ticket. So they have to bump me from Business to Economy and will give me a $400 credit (total of $800 for both seats) that I could turn in at Abu Dahbi for $400 in US cash. They then promised a row that we could have to ourselves and the arm rests would go up so we could spread out for each of us. My wife was taken care of but I was put in the exit row with the flight attendents set as part of the three...and the arm rest did not go up. When we got to Abu Dahbi, they would not exchange our credit for cash as promised. Very disappointed they took my money 3 months ago and refused to reimburse for the change in seats or follow the promises made.

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.

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

Seat space was tight and uncomfortable. There was hardly any cushioning giving me a terrible tail bone ache. Getting and out was extremely cramped. We paid for seat choices and felt totally ripped off. Food was mediocre. By the time the servers served 2 or 3 rows they ran out of this or that option as we saw on the inbound trip also. This is infuriating. Entertainment choices were extremely limited for such a long haul. The screen froze on occasion and did not switch off when the on off button was pressed. When it did it came back on its own in 5 seconds. The airlines has gone downhill since last year.

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

Information on your arrival and departure airports