Getting on an airplane is a trigger to some since that is where you can do some pretty heavy drinking.  Leaving town is another.  I have a personal experience with a situation where I didn't actually have a plan to attend an AA meeting while I went out of town very early in recovery and it might have saved me if I did.  In future trips, I made sure that I did and do you know what?  It made me feel more secure that I did the "footwork" so to speak before leaving town.  The next time I left town, I even called ahead to make sure the AA hotline worked!  Anyway, lots of people will share that uneasiness of leaving town and I tell them all of my experience.  Find out where the AA meetings are at before leaving town and even calling ahead and do a mapquest.