An Anytime web single ticket fare is £22, only available online and is valid at anytime. An Anytime single ticket fare is £25 if bought offline from a Ticket Vending Machine, a sales agent or a ticket office. We are eliminating time restrictions and there will no longer be any peak or off peak times in Heathrow Express. Anyone holding previously purchased off peak tickets will be able to travel in the peak.£5.50 one-way Express Saver ticket can only be purchased online or through our mobile app at least 90 days before travel. Limited availability. Tickets are non-exchangeable and non-refundable.