LON - CWL

£52 Find Cheap Flights from London to Cardiff

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Cardiff departing on 18/12. 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 Cardiff

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

Cheapest return fare
£76
Ryanair
Wed 17/12Fri 19/12
LTN - CWL • 1 stop
Cheapest one-way flight
£52
Ryanair
Thu 18/12
STN - CWL • 1 stop
When to travel
January
Cheapest • 43% price drop
August
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 Cardiff!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Cardiff (LON-CWL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Cardiff 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 London to Cardiff

Wed, 17 Dec - Fri, 19 Dec
Ryanair Logo
06:50 - 15:30LTN-CWL
8h 40m1 stop
Ryanair Logo
22:25 - 08:55CWL-LTN
10h 30m1 stop
£76Ryanair
Find Deal
Fri, 9 Jan - Fri, 16 Jan
Ryanair Logo
15:15 - 22:00STN-CWL
6h 45m1 stop
Ryanair Logo
16:05 - 07:25CWL-STN
15h 20m1 stop
£85Ryanair
Find Deal
Wed, 24 Dec - Wed, 7 Jan
Ryanair Logo
06:05 - 15:30STN-CWL
9h 25m1 stop
Ryanair Logo
15:55 - 21:20CWL-STN
5h 25m1 stop
£98Ryanair
Find Deal
Fri, 16 Jan - Sat, 24 Jan
Ryanair Logo
13:20 - 22:00LGW-CWL
8h 40m1 stop
Ryanair Logo
20:05 - 08:00CWL-LGW
11h 55m1 stop
£98Ryanair
Find Deal
Fri, 16 Jan - Fri, 16 Jan
Ryanair Logo
05:55 - 15:40STN-CWL
9h 45m1 stop
Ryanair Logo
22:25 - 07:50CWL-STN
9h 25m1 stop
£99Ryanair
Find Deal
Fri, 16 Jan - Sat, 24 Jan
Multiple Airlines Logo
08:35 - 22:00STN-CWL
13h 25m2 stops
Multiple Airlines Logo
20:05 - 07:50CWL-STN
11h 45m1 stop
£110Multiple Airlines
Find Deal
Fri, 9 Jan - Fri, 16 Jan
KLM Logo
08:40 - 16:45LCY-CWL
8h 05m1 stop
KLM Logo
10:20 - 19:35CWL-LCY
9h 15m1 stop
£301KLM
Find Deal
Thu, 8 Jan - Fri, 16 Jan
KLM Logo
08:40 - 16:55LCY-CWL
8h 15m1 stop
KLM Logo
10:20 - 19:35CWL-LCY
9h 15m1 stop
£303KLM
Find Deal
Mon, 15 Dec - Mon, 22 Dec
KLM Logo
08:40 - 16:45LCY-CWL
8h 05m1 stop
KLM Logo
10:20 - 17:20CWL-LCY
7h 00m1 stop
£332KLM
Find Deal
Tue, 9 Dec - Sat, 13 Dec
KLM Logo
20:05 - 09:50LCY-CWL
13h 45m1 stop
KLM Logo
17:25 - 13:15CWL-LCY
19h 50m1 stop
£374KLM
Find Deal
Booking Insights

KAYAK's insights & trends for London to Cardiff flights

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

What’s the cheapest day of the week to fly from London to Cardiff?

The average price of all round-trip flights from London to Cardiff clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from London to Cardiff, look for departures on Wednesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Cardiff, Monday is the cheapest day to fly and Friday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Cardiff, 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 London to Cardiff is January, where tickets cost £170 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is £564 and £395 respectively.

Good to know - Cheap tickets from London to Cardiff

Low seasonSeptember
Cheapest flight£52
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly (33% more expensive on average)
Flight from London Stansted Airport to Cardiff

When to book flights from London to Cardiff

Are your dates flexible? Find out the best times to travel from London to Cardiff 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 London to Cardiff

  • What is the cheapest flight from London to Cardiff?

    In the last 3 days, the lowest price for a flight from London to Cardiff was £52 for a one-way ticket and £76 for a return.

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

    London has 6 major airports: London City, London Gatwick, London Heathrow, London Luton, London Southend, and London Stansted. Cardiff Wales is the only airport in Cardiff. You’ll usually find the cheapest deals if you fly from London Stansted Airport.

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

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

  • Which airline alliances offer flights from London to Cardiff?

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

  • Which is the best airline for flights from London to Cardiff, KLM or Ryanair?

    The two airlines most popular with KAYAK users for flights from London to Cardiff are KLM and Ryanair. With an average price for the route of £335 and an overall rating of 7.7, KLM is the most popular choice. Ryanair is also a great choice for the route, with an average price of £182 and an overall rating of 6.8.

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

    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 London to Cardiff.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cardiff from London 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 London to Cardiff?

    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 Cardiff with an airline and back to London with another airline.

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

    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 Cardiff from London 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 London to Cardiff

 
See real verified KAYAK customer reviews for airlines flying from London to Cardiff. 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 London to Cardiff? 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 1422 reviews
8.4Crew
7.6Comfort
7.8Boarding
7.2Food
7.1Entertainment
Airline reviews

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

8.0 ExcellentKevin, Nov 2025AMS - BOD
Read more KLM reviews

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.

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.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

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.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

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!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

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.

Slow and delayed boarding, including standing outside 15m in -3 temperatures, Late take-off approx 45 mins Very slow bag delivery approx 45 min - no explanation

The flight boarded nice and early and this meant there was no sudden rush at the gate. The only down side was the cabin was very cold 🥶

Flying from Newquay was an absolute dream! Would 100% recommend flights from there!

It would have been better if I was not ill so I didn't go and I didn't come back and I could not transfer my tickets to a later date as Ryanair stop flying from Manchester at the end of October till next year

Flight was delayed by 1 hour 45 minutes. Aircraft was cramped, dirty and uncomfortable. Boarding staff more interested in charging you for oversize baggage than getting you on board. Overall not a pleasant experience.

Passengers next to me insisted I change seats so they could sit together. I had to frequently move so that when the sear belt sign was on I was in my proper seat! I was returning from helping my mum with my dad's things after his sudden death and didn't feel like arguing with the other passengers.

Flying from Hamburg to Stansted was a nightmare if I have to be honest, the flight was due to leave at 15:50 and we ended up not taking off properly till 16:56. They really don’t have enough people doing the sorting of baggage where you get the sticker for your case before the security check, going through security was 10x more faster then the whole baggage situation.

A delay of almost 3 hours. It was evident that the staff wanted us to board urgently, to the point of rudeness, to avoid paying compensation

It's not the staff's fault. The cabin crew do their best but the setup in Stansted Airport by Ryanair is poor. The herding of people like cattle is unacceptable before boarding and is something that's in every airport but only in Stansted have I seen the queueing of passengers outside the plane on the tarmac and the crew only turning up with maybe 5 minutes to depart. This is a resource issue . Yes prices are good but seemingly comes with a price of poor treatment of customers. I'll pay more next time

On time arrival but the aircraft had seen better days and needed a deep clean.

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

Information on your arrival and departure airports

Compare transportation modes for London to Cardiff

Transportation modeAverage priceAverage duration
Flights4h 30m
Trains£1002h 10m
Buses£193h 08m