Nina
You should tell him at your going to the aioprrt to pick up a friend or family relative and secretly pack his case of clothes he might wear depeding on where you are going. But anyway once you get there tell me that you have to meet your relative/friend outside the bording gate and then your flight gets called just pull him into the ticket area and jump on the plane and once you get off tell him where he is and say happy early birthday I done it with my boyfriend worked wondersYou can try doing that kind off thing.
Nina You should tell him at your going to the aioprrt to pick up a friend or family relative and secretly pack his case of clothes he might wear depeding on where you are going. But anyway once you get there tell me that you have to meet your relative/friend outside the bording gate and then your flight gets called just pull him into the ticket area and jump on the plane and once you get off tell him where he is and say happy early birthday I done it with my boyfriend worked wondersYou can try doing that kind off thing.