Our cheapest offers for flights from Cardiff to London

Here you can compare cheap flights from Cardiff (CWL) to London (LON) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to London. Prices and availability may change at any time.

	Outbound	Return	Airlines	Baggage	Price
Best option Cardiff London	Outbound 09/10/25 1 Stopover (DUB) FR0635, FR0202 14h 35min	Return 14/10/25 1 Stopover (DUB) FR0291, FR0634 04h 40min	Ryanair	?	£123
Cardiff London Pay attention to transfer at connecting flight	Outbound 11/09/25 1 Stopover (DUB) FR0635, FR0290 23h 55min	Return 15/09/25 1 Stopover (DUB) FR0203, FR0634 06h 20min	Ryanair		£130
Cardiff London	Outbound 20/10/25 1 Stopover (BHD) EI3621, EI8353 24h 05min	Return 11/11/25 1 Stopover (BHD) EI8356, EI3620 23h 15min	Aer Lingus Irish Airlines		£339
Cardiff London	Outbound 22/06/25 1 Stopover (DUB) FR0635, FR0202 22h 30min	Return 05/07/25 1 Stopover (DUB) FR0287, FR0634 21h 05min	Ryanair	?	£136
Cardiff London	Outbound 25/06/25 1 Stopover (AGP) VY1261, FR8165 12h 35min	Return 05/07/25 1 Stopover (DUB) FR0210, FR0634 17h 05min	Vueling Airlines, Ryanair	?	£147
Cardiff London	Outbound 13/10/25 1 Stopover (BHD, BFS) EI3621, U20043 08h 25min	Return 15/10/25 1 Stopover (BFS, BHD) U20038, EI3620 23h 30min	Aer Lingus Irish Airlines, easyJet		£186
Cardiff London	Outbound 17/06/25 1 Stopover (REU, GRO) BY6208, FR6076 25h 15min	Return 01/07/25 1 Stopover (AGP) FR5127, FR4950 14h 45min	TUI Airways, Ryanair	?	£208
Cardiff London	Outbound 11/11/25 1 Stopover (EDI) LM0338, RK1274 20h 35min	Return 04/12/25 1 Stopover (DUB) FR0210, FR0634 24h 30min	Loganair, Ryanair UK	?	£256
Cardiff London	Outbound 30/06/25 1 Stopover (BHD, BFS) EI3621, RK0130 11h 15min	Return 18/07/25 1 Stopover (AGP) FR5127, VY1260 18h 00min	Aer Lingus Irish Airlines, Ryanair UK	?	£272
Cardiff London	Outbound 09/10/25 1 Stopover (EDI) LM0338, U20307 11h 30min	Return 14/10/25 1 Stopover (EDI) U20308, LM0337 10h 50min	Loganair, easyJet		£296

Tips and tricks to help you find cheap flights from Cardiff to London

Useful information about the flight from Cardiff to London

London - historic and vibrant

London's lively, multicultural vibe entices visitors from around the world to explore and party.

London is great all year round

London is warmest in July and August, but in spring, parks (including of course Hyde Park with its famous Serpentine lake) are a riot of floral colour. In winter, bars and pubs are snug and welcoming. Plenty of holidays and festivals are celebrated in London all year round. Every August Bank Holiday, for example, Notting Hill Carnival comes to North West London. February sees wonderful Chinese New Year celebrations, and in April the London Marathon and the Oxford and Cambridge boat race on the Thames both take place.

What to know before you travel

London is a relatively safe city. However, watch out for pickpockets on busy trains. There is a 'congestion' charge (around £11) for motor vehicles in central London 7am-6pm from Monday to Friday. Visitors should be aware that London tends to be more expensive than other cities in the UK.

Local info: travel and connections

From Heathrow Airport take the Piccadilly tube line from terminals 1, 2 and 3 (the journey to central London takes about half an hour and costs around £6). Or, take the Heathrow Express from Terminal 1, 2 and 3 to Paddington station in 15 mins for around £26. A taxi to the centre is just over £30, with a journey time of around 40 mins. From Gatwick, take the Gatwick express from South Terminal to Victoria Station in around half an hour (cost: around £18). A taxi (from £20) takes about an hour. From Stansted, take the Stansted Express trains to Liverpool Street station in around 45 minutes (from £12). A taxi can cost approximately £100 and takes an hour. From Luton airport there is a shuttle to Luton Airport Parkway then the train to St. Pancras (around £15 in, 40 minutes). Cheap hostels start at around £20/night, hotels are upwards of £40/night. Single public transport tickets cost around £5.70. A day Travelcard works for all transport modes and costs £12-£15. Get an 'Oyster' card for a slight discount on the normal ticket price (refundable deposit of £5).

Important flight information

Flight information: Cardiff - London

Outbound and return from	122,89 £
Distance	221 km
Departure airport	Airport Cardiff (CWL)
Arrival airport	Airport London (LCY, LGW, LHR, LTN, STN, SEN) (LON)
Destination country	Flights to United Kingdom

Alternative routes to United Kingdom

Flight Cardiff - Edinburgh from 126 £
Flight Cardiff - Newcastle from 119 £
Flight Cardiff - Glasgow from 117 £
Flight Cardiff - London Stansted from 123 £
Flight Cardiff - London City from 279 £

Alternative flights to London

Popular destinations for onward travel

Flight London - Berlin from 77 £
Flight London - Barcelona from 57 £
Flight London - Cairo from 270 £
Flight London - Majorca from 47 £
Flight London - New York from 334 £
Flight London - Gran Canaria Las Palmas from 97 £
Flight London - Malaga from 43 £
Flight London - Singapore from 453 £
Flight London - Accra from 533 £
Flight London - Bangkok from 454 £

Flight destinations with a similar price

Flight Cardiff - Edinburgh from 126 £
Flight Cardiff - Majorca from 119 £
Flight Cardiff - Newcastle from 119 £
Flight Cardiff - Glasgow from 117 £
Flight Cardiff - London Stansted from 123 £
Flight Cardiff - Barcelona from 129 £