Cheap flights from Cardiff to London from £110
This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Cardiff to London departing on 10/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights
KLM flights from Cardiff to London
Our best KLM deals on Cardiff to London flight tickets
Ryanair flights from Cardiff to London
Our best Ryanair deals on Cardiff to London flight tickets
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How to get the cheapest flight ticket from Cardiff to London
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 Cardiff and London?
What is the cheapest month to fly to London?
The cheapest month to fly to London from Cardiff is in April. Flight prices, which tend to average around £125, are often lower during this time because this is during the off-season. The month of August is another great option to travel to London, with average flight prices from Cardiff averaging around £174.
What is the cheapest day to depart on your flight to London?
Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £0. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Cardiff to London for around £1,356.
What is the cheapest time of day to depart on your flight to London?
The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as £0. Flights in the afternoon are often more expensive, with an average ticket price of £1,356.
What is the cheapest Cardiff Wales to London flight route?
Fly from Cardiff Wales to London Heathrow for the best Cardiff Wales - London flight prices
What is the cheapest airline that flies from Cardiff Wales to London?
British Airways is the most popular carrier operating from Cardiff Wales to London
Which airlines fly to London?
KLM, British Airways and easyJet are the top three most popular airlines that fly to London from Cardiff according to our data. KLM is the first choice among our users, with 36% of people opting to fly with this airline when travelling to London. Keep in mind that there are 3 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.
When to book flights from Cardiff to London
Cheap Cardiff to London (CWL to LON) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Cardiff to London
Is flying the fastest way to get from Cardiff to London?
To save time, the fastest way to travel is by train from Cardiff to London on Great Western Railway. Expect the length of time you’ll spend onboard Great Western Railway to be about 2h 09m compared to taking a flight from Cardiff to London or a bus from Cardiff to London which have been found to be slower alternatives.
Is flying the cheapest way to get from Cardiff to London?
A bus from Cardiff to London from £14 can save you up to 86% on the cost of your trip compared to booking a flight from Cardiff to London or a train from Cardiff to London.
How far is Cardiff Wales to London by plane?
Cardiff Wales and London are 131.3 mi apart from one another. By plane, this route typically takes 3h 40m.
When did momondo last update prices for flights from Cardiff Wales Airport to London?
Prices for flights from Cardiff Wales Airport to London refresh daily.
How many operators does momondo search for flights from Cardiff Wales Airport to London?
As of April 2025, there is 1 operator available to choose from for flights from Cardiff Wales Airport to London.
How old do you have to be to fly from Cardiff Wales Airport to London?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Cardiff Wales Airport to London.
What documentation or ID do you need to fly to London?
The necessary travel and health documents for your London 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 Cardiff to London?
Based on momondo bookings for flights between Cardiff and London, the leading airline is KLM, making up 100% of the total bookings.
Best airlines flying from Cardiff to London
Compare and see reviews for airlines that fly from Cardiff to London with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £221 | Free Cancellation | Rating 7.8 1,334 reviews |
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Why should I use momondo to find a flight deal from Cardiff to London?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cardiff to London for you.
Can I find flights from Cardiff to London with flexible booking policies on momondo?
Flights from Cardiff to London 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 Cardiff to London?
momondo helps you find the best flight between Cardiff and London 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 Cardiff to London right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to London from Cardiff. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.