I'm not hijacking this thread but piggybacking it. We are also traveling with an 18 month and 4 year old on Southwest. The 18 month old will be a lap child. I would like to know this also.
I have never flown with a child under 2 as a lap child. But, my understanding is that you may be asked for a birth certificate to prove eligibility to be a lap child. For a child over 2 you will not need any form of ID.
I'm not hijacking this thread but piggybacking it. We are also traveling with an 18 month and 4 year old on Southwest. The 18 month old will be a lap child. I would like to know this also.
No ID is required for a child flying in their own seat.
ID (birth certificate) is required to prove that a child is under 2 if they are flying as a lap child, per FAA regulations. Any child 2 and over must have their own seat.