I have flown with Lola many times ( from costa rica to the nyc and from costa rica to boston )and never had a problem with her. When then plane is taking off i stick my hand in her carrier so she doesn't get scared ( the first time she cried and tried to open her carrier) i guess is because she didn't like the noise of the engine and got scared. must of my flights are at night so i take lola out of her carrier and put her on my lap and cover her with a blanket;she sleeps during the whole flight and no one knows she is not in her carrier