OK--this is throwing me into a panic! We are flying SW for our June trip from Columbus, OH and neither my DD6 or DS4 have ever flown before. They are not going to be ok if we can't sit together! NO WAY! I had planned all along to check in on-line ahead of time but I didn't realize when I purchased the package that our tickets are not electronic so I think that means we cannot check in on line? Then I thought well, we can pre-board since I DS is 4. But now it appears that this is not a guarantee when flying to MCO d/t the high volumes of families with small children. I plan to arrive at the airport 2 hours ahead but will that be enough? Also, my DD6 has a severe peanut allergy and I would absolutely not be comfortable with her sitting by herself. (I called and notified the airline of the peanut allergy and they said they won't serve peanuts but you never know what can happen) I'm thinking maybe I should have shelled out the extra $400 and flown a carrier that assigns seats. I'm a worrier by nature but this is really consuming me! I'd appreciate any advice and anyone who can calm my nerves!!!