airline e-tickets for travel from Oxford to either Heathrow or Gatwick may be used on any earlier or later equivalent service due to depart up to 2 hours before or after the service specified on the e-ticket.

airline e-tickets for travel from Heathrow or Gatwick to Oxford can be used on any departure (either earlier or later) as long as that service departs within 24 hours of the coach that you were booked on. In this instance no seat is guaranteed and the person named on the e-ticket will have to provide photographic ID.

In this instance no seat is guaranteed and the person named on the e-ticket will have to provide photographic ID.