M.M.
H M.!
Consider investing in a "Sit 'n Stroll"... It's a car seat that converts to a stroller that converts to an FAA approved airplane seat. It's a litle pricey but it was worth it's weight in gold when we travelled both domestically and to the Phillippies. It also comes woth a detachable subshade. And You would only need to take one piece of gear instear of dealing w/ both a stroller and car seat in the airport (along w/ everything else)
Have fun and good luck
M.