I am landing into Heathrow but will stopping at Coventry. I looked into the National Express Booking for a direct bus to Coventry. I assume I will be landing from JFK into Terminals 1-3. My question is if I purchase a ticket and miss my bus can I use it for the next one? How much more is it to purchase a bus ticket at the airport versus online? I am suppose to be landing at 7:30 but I may land early or even later.
Thanks in advance!