A little over 9 years after Oyster PAYG began being accepted on most National Rail services in London, the last rail service has finally joined the family. Yes, you can now use Oyster and contactless on Heathrow Express.
Just like the Gatwick Express, the fares charged are determined by which platform you use at Paddington to touch in or out. If it is platforms 6 or 7 then the higher Heathrow Express fares will be charged. The single fare is exactly the same as the cash fare on the day, while if you return it will cost more than cash. There are also very reasonably priced advance tickets available from the Heathrow Express website. Thus just like Gatwick, Oyster is very much provided for convenience and not value for money.
Adult fares are charged for standard blue cards, Student, Jobcentre, Apprentice and zip 16-18 Oyster cards. Holders of both 5-10 and 11-15 zip cards are not charged, in line with the Heathrow Express policy of not charging kids. These fares do not count towards any caps and travelcards are not taken into account.