Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

LHR - CWL

Find cheap flights from London Heathrow Airport to Cardiff from £97

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Cardiff departing on 12/6. 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
0 bags
Tue 4/6
Tue 11/6

Search 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
In the last 7 days, travellers have searched 43,369,418 times on KAYAK, and here's why:

Save 28% or moreCompare multiple travel sites with one search.

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

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

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

Cheap flight deals from Heathrow to Cardiff (LHR-CWL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Heathrow 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 and deals for you by selecting your travel dates.
Choose your dates
20:55 - 09:15LHR-CWL
12h 20m1 stop
17:15 - 20:55CWL-LHR
3h 40m1 stop
£213KLM
Find Deal
Fri, 23 Aug - Tue, 27 Aug
20:55 - 09:15LHR-CWL
12h 20m1 stop
09:45 - 20:55CWL-LHR
11h 10m1 stop
£214KLM
Find Deal
Mon, 12 Aug - Sat, 17 Aug
20:55 - 09:15LHR-CWL
12h 20m1 stop
17:15 - 20:55CWL-LHR
3h 40m1 stop
£215KLM
Find Deal
Mon, 16 Sep - Fri, 20 Sep
20:55 - 09:15LHR-CWL
12h 20m1 stop
17:15 - 20:55CWL-LHR
3h 40m1 stop
£216KLM
Find Deal
Mon, 1 Jul - Fri, 5 Jul
20:55 - 09:15LHR-CWL
12h 20m1 stop
17:15 - 20:55CWL-LHR
3h 40m1 stop
£226KLM
Find Deal
Thu, 30 May - Thu, 6 Jun
20:55 - 09:15LHR-CWL
12h 20m1 stop
17:15 - 20:55CWL-LHR
3h 40m1 stop
£226KLM
Find Deal
Fri, 7 Jun - Sun, 9 Jun
20:55 - 09:15LHR-CWL
12h 20m1 stop
17:15 - 20:55CWL-LHR
3h 40m1 stop
£238KLM
Find Deal
Mon, 3 Jun - Mon, 10 Jun
20:55 - 09:15LHR-CWL
12h 20m1 stop
17:15 - 20:55CWL-LHR
3h 40m1 stop
£240KLM
Find Deal
Thu, 20 Jun - Wed, 26 Jun
07:35 - 12:40LHR-CWL
5h 05m1 stop
12:00 - 19:35CWL-LHR
7h 35m1 stop
Sat, 5 Oct - Tue, 8 Oct
17:20 - 11:30LHR-CWL
18h 10m1 stop
12:00 - 19:45CWL-LHR
7h 45m1 stop
£472Aer Lingus
Find Deal
Mon, 3 Jun - Thu, 6 Jun

Flights from Heathrow to Cardiff - Travel Insights & Trends

Get data-powered insights and trends into flights from Heathrow 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 Heathrow Airport to Cardiff?

The average price of all flights from London Heathrow Airport to Cardiff clicked on KAYAK for each day over the last 12 months.
When flying from London Heathrow Airport to Cardiff, you should consider leaving on a Tuesday and avoid Saturdays if you are looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Saturdays and the most expensive ones on Thursdays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from London Heathrow Airport 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 Heathrow Airport to Cardiff is May, where tickets cost £218 on average. On the other hand, the most expensive months are November and December, where the average cost of tickets is £437 and £312 respectively.

How far in advance should I book a flight from London Heathrow Airport to Cardiff?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from London Heathrow Airport to Cardiff, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from London Heathrow Airport to Cardiff, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 22 days before departure.

What’s the earliest departure time from London Heathrow Airport to Cardiff?

Early birds can take the earliest flight from London Heathrow Airport at 12:00 and will be landing in Cardiff at 14:30.

What’s the latest departure time from London Heathrow Airport to Cardiff?

If you prefer to fly at night, the latest flight from London Heathrow Airport to Cardiff jets off at 19:30 and lands at 22:00.

Good to know - Cheap tickets from London Heathrow Airport to Cardiff

Low season

October

High season

February

Cheapest flight

£97
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from London Heathrow Airport to Cardiff

When to book flights from Heathrow to Cardiff

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

  • What is the cheapest flight from London Heathrow Airport to Cardiff?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Cardiff was £122 for a one-way ticket and £267 for a return.

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

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

  • On which days can I fly direct from London Heathrow Airport to Cardiff?

    There are direct flights from London Heathrow Airport to Cardiff on a daily basis.

  • How does KAYAK find such low prices on flights from London Heathrow Airport 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 Heathrow Airport to Cardiff.

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

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

  • What is the Hacker Fare option on flights from London Heathrow Airport 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 Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport 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 Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly direct from London Heathrow Airport to Cardiff?

Find which airlines fly direct from Heathrow to Cardiff Wales, which days they fly and book direct flights.

Direct departures

London Heathrow to Cardiff Wales

Monday

Vipper

Vipper

Tuesday

Vipper

Vipper

Wednesday

Vipper

Vipper

Thursday

Vipper

Vipper

Friday

Vipper

Vipper

Saturday

Vipper

Vipper

Sunday

Vipper

Vipper

See more direct flights

Direct returns

Cardiff Wales to London Heathrow

Monday

Vipper

Vipper

Tuesday

Vipper

Vipper

Wednesday

Vipper

Vipper

Thursday

Vipper

Vipper

Friday

Vipper

Vipper

Saturday

Vipper

Vipper

Sunday

Vipper

Vipper

See more direct flights
See more direct flights

Top airline flying from Heathrow 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 Heathrow 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 1603 reviews
8.4Crew
7.6Comfort
7.8Boarding
7.2Entertainment
7.3Food
Airline reviews

One of the vstewardeses wanted to bump me of the plane for absolutely nothing. There is CCTV in the plane ans everything can be verified. Very disappointing , you all will see, o other 5 years and the passangers who does not smile to flight attendent will be bumped off...

2.0 MediocrePiotr, Dec 2023POS - AMS
Read more about KLM reviews

One of the vstewardeses wanted to bump me of the plane for absolutely nothing. There is CCTV in the plane ans everything can be verified. Very disappointing , you all will see, o other 5 years and the passangers who does not smile to flight attendent will be bumped off...

The worst airline. Cancelled flight 30 min before boarding and rebooked on flight after 3 days.

Mostly fine. Minor delays departing and arriving. Quite a cramped plane, not so much as regards legroom but very narrow seats. Quiet nice food. Non-working USB charger. Flight attendants were helpful but not particularly proactive — one had to work to get their attention (but all was fine once they notice you), very Dutch style:)

I travel frequently. The flight was late again... KLM should really try and be on time

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

I requested wheel chair assistance , it was confirmed via email that inwoood get it but I didn’t get it . The last leg of my trip to Nigeria was the worst.

One of their staff was so rude with discriminative. Such a reputed airline shouldn't hire such kind of arrogant attendants.

The boarding was one of the worst I’ve ever experienced. The fault lays on Ohare Airport and not so much the airline. The waiting area by the gate was the size to accommodate a regional flight for 20-30 people and right next to a busy walkway. When you cramped nearly 300 passengers into that space is was unbearable.

The seats are too cramped in that plane. If you’re above 1,80m consider alternatives or first class I guess… There were no emergency exits to seat somewhere with more legroom

one of my bags was drenched with fish smelling water and all my new clothes bought at dublin and the 23kg checked in bag were all gone waste with very pungent fish smell and also having stains

Book cheap flights from London to Cardiff

Cheapest flights to Cardiff from London found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to Cardiff found on KAYAK in the last 72 hours.
12/6Wed
1 stop
3h 45mLHR-CWL
£97
12/6Wed
2 stops
13h 55mLHR-CWL
£112
5/6Wed
1 stop
3h 45mLHR-CWL
£157
20/5Mon
1 stop
16h 05mLHR-CWL
£220
5/6Wed
2 stops
23h 30mLHR-CWL
£441
20/5Mon
2 stopsLoganair
31h 45mLHR-CWL
£587

Search by stops

Search by airline

Search by price

Last minute flights from Heathrow to Cardiff

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from London to Cardiff that are departing in the next 10 days.
8/5Wed
multi-stopKLM
12h 20mLHR-CWL
15/5Wed
multi-stopKLM
3h 40mCWL-LHR
£394

Search by stops

Search by airline

Search by price

London Heathrow Airport - Cardiff Flights

Departure:

London Heathrow Airport (LHR)United Kingdom

Destination:

Cardiff (CWL)United Kingdom

Return flight deals:

Cardiff - London Heathrow Airport

Cabin classes:

Browse destinations: