are you ever getting off the plane to sightsee, or are you just running a one day been there done that? You spending nights anywhere?
ABS is about 500-550 air miles from CAI. cannot understand why 4:15 flight time. Stop over in AWS on the way down?
When we did this, we left CAI at 2 or3am, transfered at AWS, and left the luggage in AWS(they are set up to do this), then continued to ABS for an 8am or so arrival. did the tour, got back on a plane, and flew ABS-AWS to our hotel. The travel agency facilitator met us at the gate, and All went smoothly, but very long day for old timers. There is very limited lodging choice in ABS, the airport is very small, and a lot of flights are leaving at the same time(12-1-2pm). The scanning machines are at the front door of the airport, and large disorginazed crowds are on the front steps, pushing and shoving to get in. took at least an hour.
To answer your C&Y question, the planes we were on had only one size seating, just like inter-European C&Y.