As long as you are going from A to B, which it appears you will, you should have no trouble. There are moving sidewalks that will take you almost the entire distance. It will likely take you no more than about 10 minutes to slowly walk (or ride the moving sidewalks) from the end of A to the end of B, which is the furthest that you would have to go. You probably won't have anytime to shop in the AirMall shops, but other than that you should be fine.