Pack a Personal Item for 7 Days: 2026 Size Table

Yes, a week fits in a personal item. It works if you do four things. First, check your airline's under-seat limit before you buy or pack anything; on the airlines below it runs from 40 x 30 x 15 cm up to 45 x 36 x 20 cm. Second, wear your bulkiest outfit on the plane. Third, pack 3 or 4 tops and plan one wash. Fourth, keep every liquid in one quart bag. The size table is right below.

Check your airline's personal-item size first

I'd start here and not with the bag, because the limit is what decides everything else. There's no shared standard. A bag that fits Frontier's sizer can be too tall for British Airways, and some airlines don't publish a number at all.

2026 personal-item size table

Checked Oct 16, 2026. Sizes are copied from each airline's own page. WestJet's page gives both 15 cm and 14 cm for depth, so I'd plan for 14 cm. British Airways' route calculator also shows 45 x 36 x 20 cm on some itineraries, so check your booking.

Official pages: Frontier, Ryanair, easyJet, Air Canada, United, American, Delta, Southwest, JetBlue, Alaska, British Airways, Lufthansa, Emirates, Qantas, WestJet, KLM, Wizz Air, Allegiant.

Spirit and Air France are not in the table. Check Spirit and Air France on their own pages before you fly.

Airlines that don't publish a number

Delta, Southwest, Alaska, Qantas and Emirates (Economy) don't publish a size; Delta and Southwest just say the item has to fit under the seat in front of you. That sounds generous, but seat space varies by aircraft. My rule for these airlines is to pack to roughly the 18 x 14 x 8 in that Frontier and American publish. You'll have room to spare, and the same bag will work on your next budget flight.

The rule that makes 7 days fit: pack for 3-4 days, wash once

This is where a week actually gets won. Seven days of clothes won't fit in a bag the size of a carry-on's front pocket. Three or four days of clothes and one wash will. Over on r/HerOneBag, the thread "Tops worn vs. brought for 2 weeks" keeps landing on the same point: people pack more tops than they wear. I'd plan for the wash right from the start and stop treating it as a backup.

What to wear on the plane

Whatever you're wearing doesn't have to fit in the sizer. Put the bulkiest shoes, the heaviest layer and your jeans on your body. It's easily the most effective trick in this guide, and it costs nothing.

Step by step: packing the bag

Each step has one job. Click any image to see it full size, and use the arrow keys to move through the steps.

Packing a personal item, step by step

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Step 1: Lay everything out, then cut a third

Put everything on the bed. If something isn't going to get used on at least three of the seven days, I'd leave it at home. That cut usually takes out about a third of the pile.

Step 2: Shoes and heavy items at the base, against the back

Heavy things go low and close to your back so the bag doesn't sag forward or bulge at the front, which is exactly where sizers tend to catch.

Step 3: Roll or cube clothes into the main zone

Two small cubes beat one big one in a soft bag, because they squeeze into the corners. Rolled socks and underwear fill whatever gaps are left.

Step 4: Liquids bag on top

The TSA 3-1-1 rule means containers of 3.4 oz (100 ml) or less, all in one quart-size bag. Pack it last so it sits on top and comes out first. If leaks worry you, our guide to packing liquids without leaks covers that.

Step 5: Tech and batteries in an outer pocket

The FAA requires spare lithium batteries and power banks to travel in the cabin. A personal item is always in the cabin, so this is easy, but I'd still keep them in an outer pocket you can reach. Our battery safety guide for travelers explains the watt-hour limits.

Step 6: Measure the packed bag

An empty bag's listed size isn't what goes in the sizer. A full front pocket can add a few centimeters. Measure it packed: height, width and depth at the widest points. Then compare those numbers against the table above.

The 7-day personal-item packing list

Tick items off as you go. Your checks are saved in this browser, and the list prints on its own.

7-day personal-item checklist

0 of 20 packed

Wear on the plane

• Bulkiest shoes
• Jacket or heaviest layer
• Pants or jeans

Clothes (wash once)

• 3 to 4 tops
• 2 bottoms
• 4 underwear
• 4 pairs of socks
• Sleepwear
• Packable layer

Liquids bag (quart, 3.4 oz or 100 ml each)

• Toothpaste
• Deodorant
• Sunscreen
• Laundry soap sheets or travel detergent

Tech (cabin only)

• Phone and cable
• Power bank under 100 Wh
• Earbuds
• Plug adapter

Documents

• ID or passport
• Boarding pass
• Cards and some cash

Print checklistReset

How big a bag do you need? Liters vs days

Bag makers list volume in liters, but airlines limit dimensions, not liters. Use liters as a rough guide and the size table as the real limit.

GearOrbit packing guidance, not a measured test.

Choosing the bag: criteria first

Here's what I'd look for, in this order. Soft sides that squeeze into a sizer. A clamshell opening, so you can pack it like a small suitcase. A back panel firm enough that the bag holds its shape. Then a size that matches the strictest airline you fly. Specific bags that meet these criteria are in our personal-item backpacks for budget airlines roundup.

Variations

• Cold weather: wear the coat and the warmest layer, and swap one top for a thin base layer. Packing for cold is mostly a matter of wearing more.
• Business trip: wear the blazer and the dress shoes on the plane, and pack one pair of knit trousers that don't need ironing.
• Women's packing: the HerOneBag lesson works best here: dresses count as a full outfit, and one scarf can change how the same top looks.

For the bigger picture, start at our travel gear hub. If you want more room, our carry-on packing guide uses the same zones in a bigger bag. Pair this with a no-stress airport kit for the things you keep in your jacket pockets.

FAQ

What can you bring in your personal item?

Anything you'd bring in a carry-on, as long as it fits the size limit: clothes, a quart liquids bag under the TSA 3-1-1 rule, and electronics with their spare batteries.

What should I pack in a personal item on a plane?

Use the checklist above. For a week, that's 3 to 4 tops, 2 bottoms, underwear and socks for 4 days, a liquids bag, tech and documents.

Is there a personal item packing list for international trips?

The list above works, with two additions: a passport and a plug adapter. Check the limit for each airline you fly, since European carriers like Ryanair and British Airways are stricter than most US ones.

Can you really go a week with just a budget-airline personal item?

Yes, with one wash. That's also the question in the r/HerOneBag thread "Do you think it's possible to go 2 weeks in just a budget airline personal item?", and the answers keep pointing to laundry.

Can I put a power bank in my personal item?

Yes. The FAA requires spare lithium batteries, including power banks, to travel in the cabin, and limits them to 100 Wh each without airline approval.

What happens if my personal item doesn't fit the sizer?

That depends on the airline. Ryanair's bag policy says an oversized bag can be refused or put in the hold for a fee, and Frontier charges extra. Measure before you leave.

Sources and how we research

We don't test bags in our own hands for this guide. It's built from official rules and airline pages. Checked Oct 16, 2026:

• TSA, liquids, aerosols and gels rule
• FAA PackSafe, lithium batteries
• Frontier, Ryanair, easyJet, Air Canada, United, American, Delta, Southwest, JetBlue, Alaska, British Airways, Lufthansa, Emirates, Qantas, WestJet, KLM, Wizz Air and Allegiant
• Spirit and Air France: see Spirit and Air France for current sizes (not listed in the table above).
• Reader experience comes from Reddit thread titles on r/onebag and r/HerOneBag. We quote the topics, not individual posts.

Airline rules change. If your airline's page says something different from this table, go by your airline.