Originally Posted by
pseudoswede
If it's under legal dimensions, then it should fit under the seat in front of you.
False.
The space under the seats in Delta 757-300 model plane is 20 inches wide, 17 inches deep and about 11 inches tall. Delta mandates that baggage brought into a plane's cabin cannot be more than 22 x 14 x 9 or 45 linear inches.
The American 737-800 plane has dimensions of 20 x 17 x 11.75. American does not require baggage to be a certain size to fit under a seat, however it does mandate that baggage that goes under a seat must be 45 linear inches or less. (ed. - actually it does - 22 x 14 x 9 in)
The United 757-200 plane features an under-the-seat depth of 17 inches, a height of 10.5 inches and a width of 20 inches. United allows carry-on baggage to be no larger than 22 x 14 x 9.
22 doesn't fit in 20. And sticking out 5 inches into the foot area also doesn't fly.
Southwest Airlines limits carryon bag dimensions to 10 x 16 x 24 inches.
The under-seat dimensions are as follows:
Window Seat: 19"L x 14"W x 8.25" H
Middle Seat: 19"L x 19"W x 8.25"H
Aisle Seat: 19"L x 14"W x 8.25" H
See
http://www.dogjaunt.com/guides/airpl...-measurements/ for lots of detailed data