LON - CWL

£55 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 15/10. 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

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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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

Mon, 15 Sep - Mon, 22 Sep
Ryanair Logo
08:15 - 12:45STN-CWL
4h 30m1 stop
Ryanair Logo
13:10 - 18:00CWL-STN
4h 50m1 stop
£103Ryanair
Find Deal
Mon, 15 Sep - Mon, 22 Sep
Ryanair Logo
09:00 - 12:45LTN-CWL
3h 45m1 stop
Ryanair Logo
13:10 - 19:25CWL-LTN
6h 15m1 stop
£106Ryanair
Find Deal
Wed, 24 Sep - Tue, 30 Sep
 Logo
17:35 - 07:25LGW-CWL
13h 50m1 stop
 Logo
20:20 - 12:45CWL-LGW
16h 25m1 stop
Thu, 18 Sep - Sun, 21 Sep
Ryanair Logo
22:55 - 12:00STN-CWL
13h 05m1 stop
Ryanair Logo
11:00 - 00:20CWL-STN
13h 20m1 stop
£115Ryanair
Find Deal
Wed, 24 Sep - Tue, 30 Sep
Ryanair Logo
19:50 - 07:25STN-CWL
11h 35m1 stop
Ryanair Logo
16:20 - 21:00CWL-STN
4h 40m1 stop
£117Ryanair
Find Deal
Wed, 1 Oct - Wed, 8 Oct
 Logo
20:50 - 07:25LGW-CWL
10h 35m1 stop
 Logo
20:30 - 09:00CWL-LGW
12h 30m1 stop
Thu, 25 Sep - Thu, 2 Oct
KLM Logo
20:55 - 09:15LHR-CWL
12h 20m1 stop
KLM Logo
17:15 - 20:55CWL-LHR
3h 40m1 stop
£228KLM
Find Deal
Fri, 10 Oct - Sun, 12 Oct
KLM Logo
08:40 - 16:45LHR-CWL
8h 05m1 stop
KLM Logo
17:15 - 20:55CWL-LHR
3h 40m1 stop
£229KLM
Find Deal
Mon, 15 Sep - Mon, 22 Sep
British Airways Logo
18:55 - 11:30LCY-CWL
16h 35m1 stop
British Airways Logo
12:00 - 21:20CWL-LCY
9h 20m2 stops
£633British Airways
Find Deal
Thu, 25 Sep - Sun, 28 Sep
British Airways Logo
11:25 - 08:20LCY-CWL
20h 55m2 stops
British Airways Logo
12:00 - 08:00CWL-LCY
20h 00m2 stops
£833British Airways
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.

How much is a return flight from London to Cardiff?

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 Saturday 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 £188 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is £547 and £333 respectively.

Good to know - Cheap tickets from London to Cardiff

Low seasonMarch
Cheapest flight£55
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (16% 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 £75 for a one-way ticket and £140 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 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 £301 and an overall rating of 7.8, KLM is the most popular choice. Ryanair is also a great choice for the route, with an average price of £176 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.
7.8
KLMOverall score based on 1385 reviews
7.7Comfort
7.1Entertainment
7.3Food
8.4Crew
7.8Boarding
Airline reviews

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.

2.0 MediocreAnonymous, Aug 2025CTA - AMS
Read more KLM reviews

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.

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

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

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.

It was appalling, full of young people who were drunk and disobeying instructions to sit down. Crew did nothing to enforce. There was a Ryanair pilot sitting in the aisle opposite me who talked through out the safety briefing so loudly I couldn’t hear. Whole thing felt unsafe

Delayed for 2 hours lack of communication no refreshments as promised and the drinks on board were not as ordered and refused to refund

Straight forward checking as long as you have completed every single detail online, prior to checking day. Efficient boarding, seating is ok for a two hour flight. Fulfilledour travel requirements from Manchester to Marseille.

Good but both flights were delayed by nearly one hour making boarding tedious. We had to wait with no information

I couldn’t understand the aircraft tannoy announcements I was in seat 20C - nobody in our row could either. Speakers a bit too quiet plus messages read out too fast. Otherwise excellent flight. (Flight delayed by 50 mins)

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
Flights3h 45m
Trains£902h 10m
Buses£143h 04m

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.