AS · United States · Full-service

Alaska Airlines Personal Item Size

Exact personal item rules for Alaska Airlines, verified against the airline's own published policy on 2026-04-14.

Quick answer

Alaska Airlines does not publish a strict personal item size limit. Your bag must fit fully under the seat in front of you, which is typically about 18 x 14 x 8 inches (45 x 35 x 20 cm) on mainline aircraft. Must fit under the seat in front of you. No strict published dimensions. Gate-check risk is low on Alaska Airlines.

One personal item is included free on every Alaska Airlines fare, in addition to your carry-on bag.

Personal Item

Max dimensions (in)
Not published
Max dimensions (cm)
Not published
Included
Yes, free on every fare
Basic economy
Carry-on allowed

Must fit under the seat in front of you. No strict published dimensions.

Carry-On (for context)

Max dimensions (in)
22 x 14 x 9"
Max dimensions (cm)
56 x 36 x 23 cm
Fee
Free
Full baggage policy

Does your bag count?

Common bag types compared against the Alaska Airlines personal item limit. Sizes are typical retail dimensions and vary by brand.

Bag type Typical size On Alaska Airlines
Standard backpack
Everyday daypack, laptop backpack
 18 x 13 x 8" Under-seat only
Tote bag
Canvas or leather tote
 15 x 14 x 5" Under-seat only
Laptop bag
Messenger or slim briefcase
 16 x 12 x 4" Under-seat only
Small duffel
Gym or weekender
 18 x 11 x 11" Under-seat only
Purse
Handbag or crossbody
 12 x 10 x 5" Under-seat only
Under-seat roller
Mini wheeled bag
 16 x 14 x 8" Under-seat only

Frequently asked questions

What is the Alaska Airlines personal item size limit?

Alaska Airlines does not publish strict personal item dimensions. Your bag must fit fully under the seat in front of you, generally around 18 x 14 x 8 inches. Must fit under the seat in front of you. No strict published dimensions.

Does a backpack count as a personal item on Alaska Airlines?

Yes. Alaska Airlines does not publish strict dimensions, so a standard backpack that slides fully under the seat in front of you counts as a personal item. Overstuffed or bulky travel backpacks may be asked to go in the overhead bin.

Does Alaska Airlines weigh personal items?

Personal item weight is not published by Alaska Airlines and is rarely enforced at the gate for US domestic flights. On international routes, especially with codeshare partners, agents may weigh bags, so keep your personal item reasonable in weight.

What if my personal item is too big for Alaska Airlines?

If your bag does not fit fully under the seat, the flight attendant may ask you to move it to the overhead bin or gate-check it. That can trigger a carry-on or checked bag fee on Basic Economy fares where only a personal item is included.

Need the full Alaska Airlines baggage policy?

Checked bag fees, overweight and oversize charges, special items, and basic economy rules for Alaska Airlines, all in one place.

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Last verified 2026-04-14 against the official Alaska Airlines policy at https://www.alaskaair.com/content/travel-info/baggage/carry-on-luggage . Airlines change their rules without notice, so always confirm with your carrier before flying.