Originally Posted by AS Flyer
Actually, since they haven't firmed up the summer schedules just yet, they are showing it as a 737-400. I've seen this year after year. They will change the a/c type to either the 737-800 or 737-900 soon I would imagine.
Armed with this info I went ahead and booked 2 of us on SEA-MIA for later this spring in spite of the website showing a 737-400 both ways. U space wasn't available for 2 then. Today we're now officially on a 737-800 both ways and, perhaps due to a larger F cabin, U space opened up.