As the overhead bins on most flights seem to get filled faster and faster, those of us who carry soft-sided, non-wheeled bags are sometimes given the option of putting those same bags underneath the seat in front of us..
But just how much room is available? That depends on the type of aircraft and airline. On some, the middle seat has the most room with the aisle or window seat the least. On others, a video control box takes up most of the room.
Up until now, it’s been difficult to find this information. However, here’s an article that gives some information:
Dimensions Under Airline Seats.
Another way to possibly get this information is to seek out the airlines’ under seat pet kennel dimensions. If your bag isn’t bigger than the pet kennel, it will fit under your seat.
Here’s a website with some information about this:
Dogjaunt: Airline Under Seat Measurements
If you know of any more, let us know.