Is flying Space-A worth it?

Space A is best for vets or active duty traveling alone. It is really meant for when you have more time than money. And remember it isn't only the aerial ports/AF that have flights. Check with the Navy as well. It depends on where you want to go and how time critical your arrival is.

Space-A is the ONLY way to travel! IF you have the available time.....

I used it several times when I was stationed overseas. It saved me tons of money for a family of four traveling home for visits. It does take a little planning and flexibility to make the right connections. Check the "cargo ports" along with the normal PAX ports. I found flights easier from the heavy lift bases (ie: Dover AFB, Travis AFB, etc) than I did the normal "Rotator Flight" locations (ie: St Louis, BWI, San Fransisco, etc). Make sure you have alternate travel plans as a contingency. Sometimes the cargo flights get cancelled completely or they change to no passengers allowed.

Sometimes good, sometimes bad.