For those going from Cardiff to Heathrow Airport, the taxi journey lasts about 2 to 2.5 hours and spans around 120 miles. Expect fares between £180 to £220, depending on the vehicle type and traffic conditions. Both routes offer a stress-free, private, and convenient alternative to public transportation, ideal for business or leisure travelers. https://albionairportcars.co.uk/transfer/taxi-from-luton-airport-to-london-airport