Question: are backpacks personal items delta?
Answer: According to Delta, “If the backpack can get under the seat in front of you, then it will be considered a personal item.” Carry-on bags can be up to 22 x 14 x 9 inches, so if your backpack is bigger than that, it's probably not going in the overhead bin, either. ... In that case, you can still bring a carry-on.