I'll be traveling for the first time in 20 years, and I'll be bringing my MacBook Pro and an iPad Air, as well as my usual folderol. I have a decent sized backpack, roughly 19-20" tall, 13-14" wide, and about 11" deep.
I'm wondering if I should just get a new backpack for this trip. Is there a standard pack size that would pass muster for all domestic USA travel?
If I arrive at the gate and they try to get me to check in my systems I'll be walking out and hoping I can get a later flight. I don't take chances with my systems.
As my employer is handling all travel reservations, I may not know my airline until the week before departure.