CWL - SYD

£692 Find Cheap Flights from Cardiff to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cardiff to Sydney departing on 17/1. 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
£1,411
Typical prices: £1,315-£1,547
KLM
Fri 6/2Fri 27/2
CWL - SYD • 2 stops
Cheapest one-way flight
£692
Multiple Airlines
Sat 17/1
CWL - SYD • 3 stops
When to travel
April
Cheapest • 22% 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

Fri, 6 Feb - Fri, 27 Feb
KLM Logo
17:15 - 08:25
CWL
-
SYD
28h 10m2 stops
KLM Logo
15:55 - 09:50
SYD
-
CWL
28h 55m2 stops
£1,411KLM
Fri, 6 Feb - Fri, 27 Feb
Multiple Airlines Logo
17:15 - 19:20
CWL
-
SYD
39h 05m3 stops
Multiple Airlines Logo
21:15 - 16:55
SYD
-
CWL
30h 40m3 stops
£1,470Multiple Airlines
Mon, 19 Jan - Mon, 26 Jan
Multiple Airlines Logo
17:15 - 19:20
CWL
-
SYD
63h 05m3 stops
Multiple Airlines Logo
21:15 - 16:55
SYD
-
CWL
30h 40m3 stops
£1,474Multiple Airlines
Mon, 19 Jan - Mon, 26 Jan
Multiple Airlines Logo
23:30 - 22:30
CWL
-
SYD
36h 00m2 stops
Multiple Airlines Logo
16:35 - 16:55
SYD
-
CWL
35h 20m3 stops
£1,497Multiple Airlines
Mon, 19 Jan - Mon, 26 Jan
Multiple Airlines Logo
17:15 - 20:50
CWL
-
SYD
40h 35m2 stops
Multiple Airlines Logo
15:15 - 16:55
SYD
-
CWL
36h 40m2 stops
£1,542Multiple Airlines
Mon, 26 Jan - Tue, 3 Feb
KLM Logo
10:20 - 07:35
CWL
-
SYD
34h 15m2 stops
KLM Logo
15:55 - 16:55
SYD
-
CWL
36h 00m2 stops
£1,600KLM
Wed, 18 Mar - Tue, 14 Apr
Singapore Airlines Logo
17:25 - 17:55
CWL
-
SYD
37h 30m2 stops
Singapore Airlines Logo
15:00 - 16:45
SYD
-
CWL
34h 45m2 stops
£1,629Singapore Airlines
Sat, 20 Dec - Sat, 14 Feb
Multiple Airlines Logo
10:20 - 09:25
CWL
-
SYD
36h 05m2 stops
Multiple Airlines Logo
15:15 - 08:30
SYD
-
CWL
52h 15m3 stops
£1,776Multiple Airlines
Mon, 5 Jan - Wed, 14 Jan
KLM Logo
10:20 - 07:35
CWL
-
SYD
34h 15m2 stops
KLM Logo
15:55 - 09:50
SYD
-
CWL
28h 55m2 stops
£1,826KLM
Sat, 20 Dec - Sat, 14 Feb
Air France Logo
10:20 - 06:35
CWL
-
SYD
33h 15m2 stops
Air France Logo
12:00 - 20:10
SYD
-
CWL
43h 10m2 stops
£1,947Air France
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 February.

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 £1,043 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is £1,853 and £1,722 respectively.

Good to know - Cheap tickets from Cardiff to Sydney

Low seasonApril
Cheapest flight£692
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly and prices are also 13% 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 £692 for a one-way ticket and £1,411 for a return.

  • 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 £1,536 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 £1,157 and an overall rating of 7.4.

  • 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 1430 reviews
7.6Comfort
7.2Food
7.1Entertainment
8.3Crew
7.8Boarding
Airline reviews

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

2.0 MediocreAnonymous, Dec 2025
AMS - BUD
Read more KLM reviews

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.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

1 hour flight. No complaints. Some drinks would have been nice.

The flight from Abu Dabhi to Bangalore was terrible. The plane was an order model with no onboard entertainment. The beverage selection were very limited.

More leg space than other flights, but *maybe* narrower seats

More leg space than other flights, but felt like *maybe* narrower seats?

Very delayed and uncomfortable seats. Nothing written in Urdu for Pakistanis. Tons of Pakistanis use the airline they should ensure the airline is accommodating them properly.

My baggage was not boarded and is still missing. I was only carring one piece of luggage and that is misplaced now I am stuck at mumbai without luggage. I had an onward journey from here

Etihad charged me for 2 check in bags. On Kayak search results price was showing 2 check in bags were included. Kayak need to reimburse me for these additional charges and metal agony and distress. Thanks.

I am a larger than average person and in my opinion i don't think it's fair to allocate a window seat to anyone who is my size or larger, i was seated between 2 large passengers on a full aircraft. The guy in the window seat also occupied a portion of the middle seat (my seat) which made my experience of flying with etihad very cramped and uncomfortable, i was flying from Abu Dhabi to Bangkok. Had this been a airbus 380 it would have been better as the seats are larger but unfortunately it wasn't so i had to endure the 6+hrs unable to get any rest

Old plane, old entertainment system. It wasn't working throughout the entire flight. I was offered to connect to their system via Wifi to watch on my phone. Crew wasn't very helpful except one lady who turned the experience around.

Stewardess was attentive and was actively roamin to check the passengers on the biz class

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

Information on your arrival and departure airports