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Alaska Airlines Carry On Size Guide for 2026

Alaska Airlines carry on backpack for flexible travel packing

The Alaska Airlines carry on size limit is 22 by 14 by 9 inches, including the wheels and fixed handles. Each passenger may bring one carry on bag for the overhead bin and one smaller personal item for the space under the seat. Alaska does not publish a numeric personal item size. Its current travel guidance says anything additional or larger must be checked.

What Is the Alaska Airlines Carry On Size and Allowance

Alaska uses a separate rule for each item you take into the cabin. The suitcase belongs overhead. Your second item must be small enough to stay completely under the seat in front of you.

Item

Current allowance

Size rule

Where it goes

Carry on bag

One

22 by 14 by 9 inches

Overhead bin

Personal item

One

No numeric limit published

Under the seat

Carry on weight

No numeric limit published

You should be able to lift it safely

Overhead bin

What Alaska counts in carry on luggage dimensions

When measuring, the telescoping handle should be fully retracted. Wheels, fixed top and side handles all count. Measure to the highest fixed point rather than the top of the suitcase shell. Alaska has told travelers to include expandable pockets in the total measurement, so check the bag after packing. 

How an Alaska Airlines personal item should fit

Alaska gives no official measurements for a personal item. A purse or small laptop backpack may qualify when it fits fully under the seat. Aircraft and seat hardware can change the usable space, so leave enough room to compress the bag to confirm that it can sit under your seat.

The Rules Apply to Alaska Partner and Connecting Flights

The operating airline controls the cabin bag on each segment. An Alaska flight number can include a segment operated by another carrier, and that carrier may use a smaller size or a weight cap.

Open the trip details and find the words operated by for every flight. Compare the same packed bag with each operator's current policy. It is better to use the strictest limit for the whole trip.

International and regional aircraft may have less overhead space. A bag that meets the size requirements can still be gate-checked when the aircraft or available bin space requires it. 

How Do You Measure Luggage for the Alaska Carry On Size Limit

Stand the packed suitcase upright on a hard floor.  Measure the luggage from the floor to the highest fixed point. Then measure across the widest side. Turn the tape to the thickest front-to-back point, including any filled exterior pocket.

Write the figures as height by width by depth and compare each one with 22 by 14 by 9 inches. Repeat any reading that sits exactly on a limit. 

Compact Alaska Airlines personal item backpack for underseat travel

What Can You Pack in Carry On Luggage on Alaska Airlines

Airline size rules decide whether the luggage fits in the cabin. TSA and FAA rules decide what can stay inside. Both checks matter.

Packed item

Current rule

Practical action

Liquids and gels

Each container may hold up to 3.4 ounces or 100 milliliters

Place containers in one clear quart-size zip bag

Medically necessary liquids

More than 3.4 ounces may be allowed after screening

Tell the officer and separate them for screening

Power banks and spare lithium batteries

Carry on only

Protect terminals and keep them accessible

Standard lithium-ion batteries

Up to 100 watt-hours for personal use

Keep devices protected from damage

Larger lithium-ion batteries

101 to 160 watt-hours need airline approval, with no more than two spares

Contact Alaska before travel

Put the liquids bag where you can reach it without opening the main clothing compartment. Sharp objects and unusual equipment need an item-specific check. TSA's decision can also depend on what an officer sees during screening. 

Pack for an unexpected gate check

Overhead space can run out even when your suitcase meets the Alaska Airlines carry on size. A compliant bag may then be checked at the gate. 

Keep identification and medication in the personal item so they remain with you. Remove power banks and spare lithium batteries before checking. The FAA says these items must stay in the cabin when a carry-on is checked at the gate or planeside. Battery terminals need protection from short circuits.

Which LEVEL8 Luggage Is Best for Alaska Airlines

Alaska’s 22 by 14 by 9 inch limit makes overall dimensions the first filter when choosing carry on luggage. The right option depends on whether you need a cabin bag or a personal item and whether a checked case should be part of the purchase. 

Navigator Backpack for Soft Carry On Packing

Travelers carrying camera equipment may prefer a backpack below the roller bag limit. The Navigator Backpack measures 19.7 by 12.2 by 8.3 inches, which stays within Alaska's 22 by 14 by 9 inch maximum. Its expandable compartment holds up to 32 liters, and the empty bag weighs 3.92 pounds. The padded rear compartment fits a 16-inch laptop.

Expansion can change the packed profile even when the listed dimensions fit. Fill the bag, tighten its compression straps, and measure the deepest point before leaving home. 

Matte Two Piece Luggage Set for Short and Long Trips

Travelers who use a carry-on for short flights but need checked capacity on longer trips may otherwise buy two unrelated cases. 

The Matte Two Piece Luggage Set pairs the 20-inch cabin case with a larger checked case. The included carry-on is shown at 22 by 14 by 9 inches. Its polycarbonate shell and divided interior support the same packing method across both cases.

Alaska Airlines carry on luggage set for longer trips

Urban Backpack for an Alaska Personal Item

Alaska does not publish a numeric personal item limit, which makes a compact shape more useful than an unsupported airline-approved claim. 

The Urban Backpack measures 11.8 by 5.9 by 18.1 inches and has a 19-liter capacity. Its 5.9-inch depth limits bulk, while the padded laptop sleeve keeps electronics in one protected area. The 180-degree opening also lets you reach packed items without emptying the main compartment.

FAQs

Does Alaska Airlines weigh carry on luggage?

No numeric weight limit is published. You still need to lift and stow the bag safely. A partner airline may apply its own weight rule.

Is any 22-inch suitcase accepted by Alaska?

No. The complete bag must be no larger than 22 by 14 by 9 inches. Wheels and fixed handles count. Packed pockets count too.

Is a carry-on free with an Alaska Saver fare?

Yes. Current policy includes one carry-on and one personal item with Saver. Both items must follow the normal cabin size and storage rules.

Can I expand my suitcase on an Alaska flight?

Only when the packed case stays within 22 by 14 by 9 inches. Measure its deepest point after closing and filling the expansion section.

What happens if my Alaska carry-on is too large?

It must be checked. Any applicable charge depends on your itinerary and traveler benefits. If an exterior pocket or expansion panel causes the problem, remove items and measure the packed bag again.

What Should You Check Before an Alaska Airlines Flight

Use 22 by 14 by 9 inches as a three-side limit, with every fixed exterior part included. Pack one smaller item that can stay under the seat. Then check TSA liquids and FAA battery rules before closing the case.

Review the operating carrier for each segment and measure the packed bag again at home. This short check gives you a reliable answer based on current published rules and reduces the chance of an avoidable gate check.

Recheck the rules whenever your itinerary or packed bag changes.

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