After listening to advice from many gals on this board, I took our Scenera for our first airplane adventure. I was flying with Claire alone (Claire is 18 months, 24 pounds and I don't know for sure how tall she is), and the Scenera was perfect. We flew Southwest the whole time, and the seat fit very well in the seats (FFing). It wasn't too heavy to lug around (I put it in a carry-bag and carried it like a backpack), and was easy to maneuver down those skinny aisles. I managed Claire, a stroller, the Scenera, and the diaper bag, and we survived
What did strike me is that I didn't see ONE SINGLE OTHER KID in a car seat on any of my four flights. Not one. I saw a ton of car seats come thru the baggage claim, but none on the actual airplane. Some of the flight attendants acted like I was crazy for bringing it, but when they saw Claire sleeping peacefully I'm sure they appreciated that she wasn't a screaming lap child.
We did have some turbulence today, and I was so glad that Claire was buckled safely in her seat. Thank you ladies for the great advice!!