when we flew out to WA w/ our then 3 month old we used our snuggli, it was a pain to get him in while on the plane and we didnt' have him in while flying(sitting in our seats) but while walking threw the airport it was great! Any carrier would be a big help. I say use the carrier your most comfortable with. It was so nice to have baby securely attached to one of us while fighting threw the crowded airports.
have a good trip!
have a good trip!