Cheap flights from London to Cardiff from £57
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 to Cardiff departing on 23/4. 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 to Cardiff
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
KLM flights from London to Cardiff
Our best KLM deals on London to Cardiff flight tickets
British Airways flights from London to Cardiff
Our best British Airways deals on London to Cardiff flight tickets
See travel insights to Cardiff from
How to get the cheapest flight ticket from London 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 typical price of a round-trip flight between London and Cardiff?
What is the cheapest month to fly to Cardiff?
The month of January is, on average, the cheapest month to fly to Cardiff from London, with most prices found around £197. If you are unable to visit Cardiff during the month of January, then departing from London during the month April is also very affordable. Most momondo users find prices during this month for around £240.
What is the cheapest day to depart on your flight to Cardiff?
The cheapest day to depart from London to Cardiff is on a Tuesday. Travellers who choose to depart for Cardiff on a Tuesday will often find tickets for as low as £268. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from London to Cardiff for around £343.
When to book flights from London to Cardiff
Cheap London to Cardiff (LON to CWL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Cardiff
Is flying the fastest way to get from London to Cardiff?
To save time, the fastest way to travel is by train from London to Cardiff on Great Western Railway. Expect the length of time you’ll spend onboard Great Western Railway to be about 1h 51m compared to taking a flight from London to Cardiff or a bus from London to Cardiff which have been found to be slower alternatives.
Is flying the cheapest way to get from London to Cardiff?
A bus from London to Cardiff from £10 can save you up to 90% on the cost of your trip compared to booking a flight from London to Cardiff or a train from London to Cardiff.
How far is London to Cardiff Wales by plane?
The distance between London and Cardiff Wales is about 131.3 mi. Typically, this will take 3h 40m by plane in normal conditions.
What is the carbon footprint of flying from London to Cardiff Wales?
The carbon footprint of a London to Cardiff Wales flight is around 158lb, which may vary slightly based on airline and stops. There is a CO2 sorter on our flight search results to help you select the lowest possible footprint. The carbon footprint of a train for this route is 81% less. If you can take the time, the carbon footprint of a bus for this journey would be 19lb, some 88% less than flying.
When did momondo last update prices for flights from London to Cardiff Wales Airport?
Prices for flights from London to Cardiff Wales Airport refresh daily.
How many operators does momondo search for flights from London to Cardiff Wales Airport?
There is 1 operator available for flights from London to Cardiff Wales Airport as of April 2025.
How old do you have to be to fly from London to Cardiff Wales Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Cardiff Wales Airport.
What documentation or ID do you need to fly to Cardiff Wales Airport?
The travel and health documents required for your trip to Cardiff Wales Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cardiff Wales Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from London to Cardiff?
momondo data reveals that the most frequently booked airline on the route from London to Cardiff is KLM, representing 100% of all bookings.
Best airlines flying from London to Cardiff
Compare and see reviews for airlines that fly from London to Cardiff with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £197 | Free Cancellation | Rating 7.8 1,321 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?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cardiff from London.
Can I find flights from London to Cardiff with flexible booking policies on momondo?
Flights from London to Cardiff with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from London to Cardiff?
momondo helps you find the best flight between London and Cardiff by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from London to Cardiff right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Cardiff, momondo offers a useful price alert feature which will track prices for flights to Cardiff from London and alert you when they change.