Cheap flights from London Heathrow Airport to Cardiff from £90
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Cardiff departing on 19/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London Heathrow Airport to Cardiff
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
KLM flights from London Heathrow Airport to Cardiff
Our best KLM deals on London Heathrow Airport to Cardiff flight tickets
British Airways flights from London Heathrow Airport to Cardiff
Our best British Airways deals on London Heathrow Airport to Cardiff flight tickets
See travel insights to Cardiff from
How to get the cheapest flight ticket from London Heathrow Airport to Cardiff
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Cardiff?
The month of December is, on average, the cheapest month to fly to Cardiff from London Heathrow Airport, with most prices found around £233. If you are unable to visit Cardiff during the month of December, then departing from London Heathrow Airport during the month November is also very affordable. Most momondo users find prices during this month for around £238.
What is the cheapest day to depart on your flight to Cardiff?
The cheapest day to depart from London Heathrow Airport to Cardiff is on a Tuesday. Travellers who choose to depart for Cardiff on a Tuesday will often find tickets for as low as £264. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Cardiff for around £338.
When to book flights from London Heathrow Airport to Cardiff
Cheap London Heathrow Airport to Cardiff (LHR to CWL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Cardiff
How far is London Heathrow to Cardiff Wales by plane?
London Heathrow and Cardiff Wales are 117.1 mi apart from one another. Typically, this will take 4h 00m by plane in normal conditions.
When did momondo last update prices for flights from London Heathrow Airport to Cardiff Wales Airport?
Prices for flights from London Heathrow Airport to Cardiff Wales Airport refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to Cardiff Wales Airport?
There is 1 operator available for flights from London Heathrow Airport to Cardiff Wales Airport as of April 2025.
How old do you have to be to fly from London Heathrow Airport to Cardiff Wales Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Cardiff Wales Airport.
What documentation or ID do you need to fly to Cardiff Wales Airport?
The necessary travel and health documents for your Cardiff Wales Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London Heathrow Airport to Cardiff?
momondo data reveals that the most frequently booked airline on the route from London Heathrow Airport to Cardiff is KLM, representing 100% of all bookings.
Best airlines flying from London Heathrow Airport to Cardiff
Compare and see reviews for airlines that fly from London Heathrow Airport to Cardiff with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £194 | Free Cancellation | Rating 7.8 1,323 reviews |
Travelling to a place near Cardiff?
Book flights to Cardiff if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from London to Cardiff?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Cardiff . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from London to Cardiff with flexible booking policies on momondo?
momondo does allow users to show only those flights to Cardiff from London which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from London to Cardiff?
Once all potential London to Cardiff flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from London to Cardiff right now. Can momondo alert me if prices change?
Yes. momondo can track prices for London to Cardiff flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.