I have a flight pass and it is going to expire in the next few months. I'd like to use the remaining 2 credits right near the end of the pass for positioning on my mini-RTW. I'm not at all worried about the outbound. It happens a couple of weeks before the pass expires. The return is where my questions comes. For the purposes of this, assume that the pass expires on August 22nd. I'd like to book my flight for August 26th. Is the pass expiry date the last date you can fly or the last date you can book? It was so much easier when I was going through a pass every 5 weeks.