C.W.
Hi M.,
I recently responded to someone asking about holding her infant on her lap during a flight. I realize this is done all the time, and the usual logic is "if we crashed, a carseat wouldn't make a difference." That's really not the issue to think about. It's what happens to your sweet girls if you hit some turbulence, which happens with some regularity. They are SO much safer in their carseats. You'd have to call the airline on which you intend to fly to ask about whether they count as carry on luggage, but I would doubt it. On Southwest, passengers traveling with young children are allowed to board first so they can install their carseats, etc. I have flown and driven with young children, and a lot depends upon how far you have to travel each day. Two or three days of being in the car is hard for kiddos, but if you can spread your travel time over a week and do some sightseeing on the way, that can be fun. All other things being equal, I'd probably fly! Just keep your babies safe in any case!
C.