Sitting on the couch... probably not!
Not sure if your a big guy, but im 6' and felt pretty cramped. The flights were just over an hour and that was plenty long enough for me. I dont know if I could stand a 4 hr flight. Also ran into some rough air, might not be an issue with longer flights sice they probably fly at a higher flight level = smoother air.
Also be prepared to completely empty your pockets, and take your shoes off when going thru the security, if your chosen, you may also get a personal pat down.
Any layovers?
If there is, I would suggest trying to find out the gate numbers in advance, then look at a gate map, that way you can get an idea of which way to go especially if your layover is short. For example I had a 35 minute layover in Denver, we arrived at gate B-57 and departed at gate B-53 or something like that... you would think they were close, but come to find out the gates were a half mile walk apart! we deplaned, then hustled over to the other gate, and made it with three minutes to spare!!
Try to pack everything in a carry-on, seems most airlines charge at least $25 for a checked bag, and thats EACH way. Your allowed one carry on and one personal item.
