Alaska Airlines Carry-on Luggage Rules
Alaska Airlines allows each passenger one free carry-on bag and one personal item. The maximum size for your Alaska Airlines carry-on luggage is 22.0 × 14.0 × 9.0 in (approx 55 × 35 × 22 cm). Alaska Airlines does not specify a carry-on weight limit.
Your personal item must fit under the seat in front of you. Examples of personal items include a purse, briefcase, or laptop bag. Although Alaska Airlines doesn't publish exact personal item dimensions. Check for any changes to Alaska Airlines baggage allowance before your flight.