Cheap flights from Cardiff to London
Cheap return flights from Cardiff to London
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
London flight facts
What you need to know
What are the cheapest airlines?
- Ryanair
- easyJet
- British Airways
These airlines usually offer the cheapest flights from Cardiff to London.
What airlines fly indirectly?
- KLM
- Air France
- Lufthansa
These airlines fly from Cardiff to London, but you’ll have at least one layover.
How long is the flight?
1 hour
This is the shortest flight time from Cardiff to London.
Alternative flights from the UK to London
Check out prices for other routes
Alternative flights from Cardiff
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Cardiff/London route. There are around 35 flights on any given week from the UK to London and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from Cardiff to London
Tips and advice from our flight experts
You've searched for flights from Cardiff to London. We've found 15 flights and compared them to give you the best offer. Ryanair is, on average, the cheapest for this route. Look out for their deals! The cheapest offer we've found is a one-way ticket for Cardiff to London on 28/02/2026 at 12:30 for £90.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 5 airlines that operate the 150 km flight from Cardiff to London.
To find the best offers, book in advance and consider traveling during off-peak seasons. Ryanair is a popular, budget-friendly option for this route, and the average flight duration is about 1 hour. After selecting an offer, fill out your information and proceed with payment. Consider booking a hotel with us or using our flight + hotel service to save time and money.
Other popular destinations near London
Where other people are flying to
