Heathrow Connect was marketed as a cheaper way to reach Paddington from Heathrow and vice versa, with a single fare of £10.30 (less than half the Heathrow Express fare, but almost double the price of a London Underground journey) and a journey time of 25 minutes against the Express time of 15 minutes. Passengers were also permitted to use their Railcards to access discounts. Originally it was not intended to be used as a cheaper (but slower) alternative to the Heathrow Express service from Paddington to Heathrow: every Connect service was overtaken by an Express service en route, and at Paddington trains were originally advertised on departure boards as running to Hayes & Harlington only. Standard-class travel between Heathrow Airport terminals was free, and this included Heathrow Connect services.