MOST IMPORTANTLY, you should have everyone's contact information with you. Phone numbers, email addresses, of all parties involved which include sending and receiving groups and their appointed rescue assistants who might be the parties picking up or dropping off the animals.
You should always confirm the night before that the pilot you are connecting with is still planning on meeting you. That being said, things can happen but normally everything runs smoothly.
In multi-leg transports, it is highly recommended that the sending and receiving groups make arranges by using our volunteer map, if necessary, for someone to be available to come to the airport and foster the animals until they can be moved to their destination. We have also had pilots overnight animals themselves and set a different time to fly. There are many options, being as prepared as possible if the best overall plan. We do have on the upper right of each page a volunteer map. You can zoom in to the area you might need and look for volunteers who have offered to help out as well in emergency situations.
Hopefully, all will go as planned but back-up plans are a good idea!