Carry On Packing List

Updated August 2026 · Vacation Checklists

Going carry-on only comes down to two hard limits, and everything else is detail. The bag has to fit the airline's sizer (22 x 14 x 9 inches on most US full-service carriers as of August 2026), and every liquid has to fit in one quart-sized bag in containers of 3.4 oz or less. Work backward from those two constraints and a week of clothes fits easily: about 5 tops, 2 bottoms, 1 layer, 7 sets of underwear, and one spare pair of shoes. The bag isn't the problem. The list is.

Build your list around your trip length with our free packing list generator, then use the tables below to trim it down to bag size.

Updated August 2026. Airline cabin dimensions and battery rules change. Confirm liquid rules at tsa.gov and confirm bag size on your own airline's page before you fly. The sizer at the gate is the version that counts.

A note on numbers. This page gives you bag dimensions, weight limits, garment counts and the outfit math, not dollar figures. Baggage fees, fares and laundry are set by your airline and your destination, and none of it is ours to set. Pack to the limits here, then check your own carrier's fee table before you book.

The Two Constraints That Decide Your Whole Bag

Most carry-on advice starts with a list of items. That's backward. Start with the box you have to fit into.

Constraint one: volume and shape. A 22 x 14 x 9 inch bag is roughly 40 liters of usable space, and that's the ceiling. It isn't negotiable at the gate, where a gate agent with a sizer has the final word regardless of what fit fine on the way out. Bags that expand, over-stuffed front pockets, and a jacket bungeed to the outside are the three things that turn a legal bag into a gate-checked one.

Cabin sizes are not standard across airlines, either. Here's the shape of it as of August 2026:

Two things people get wrong here. First, wheels and handles count, so a bag advertised as 22 inches is sometimes 23 with the wheels. Second, many non-US airlines enforce a weight limit that US carriers usually don't. An 8 kg (17.6 lb) cabin allowance is common in Europe and Asia, and it's a much tighter limit than the size. Check your bag against the airline's published numbers with our carry-on size checker before departure day, not at the gate.

Constraint two: the quart bag. Every liquid, gel, aerosol, cream, and paste in the bag has to be in a container of 3.4 oz (100 ml) or less, and all of them together have to fit inside one quart-sized clear resealable bag. One bag per passenger. The printed container size is what's judged, not how much is left inside it, which is why a half-empty 8 oz bottle still gets pulled. The TSA liquid rules page covers the exemptions, and there are more of them than people expect, including medication and baby formula.

Fit those two constraints and there's no third problem. Fail either one and you're paying the counter's checked-bag fee each way, which is always higher than the same bag booked online in advance.

The Complete Carry On Packing List

This is the whole thing for a trip of 3 to 7 days in mild weather, split by where it lives. Everything below fits a 40 L bag plus a personal item with room left over.

That's it. Notice what isn't there: a second layer, a third pair of shoes, a hair dryer, full-size anything, "just in case" outfits, or a book you won't finish. Each of those is a real decision people make and then regret at the gate.

Anything not on that list should have to argue for its space. The test that works: could you buy this at the destination in under 15 minutes, cheaply, from any pharmacy or corner store? If yes, and there's a chance you won't need it, leave it home.

Capsule Wardrobe Math: Why 5 Tops and 2 Bottoms Covers a Week

Here's the arithmetic that makes carry-on only work.

Five tops and two bottoms give you 10 distinct outfits. Seven days needs seven. You have three spare combinations for a spill, a rain day, or a change of plans. Add one layer that goes over everything and you cover a temperature swing of about 20 degrees without adding another item.

The mechanism is re-wearing bottoms. Tops touch your skin all day and pick up sweat; pants, skirts, and jeans mostly don't. A pair of jeans handles three or four wears easily. A shirt handles one. So the ratio that makes sense is roughly two or three tops per bottom, not one for one.

Two rules make the math actually hold:

One color family, one neutral base. Pick a base of navy, black, gray, or khaki for the bottoms, then choose tops that all work with both. If every top goes with every bottom, 5 x 2 really is 10. If two of your tops only work with one specific pair of pants, you've quietly lost four combinations and the whole system leaks.

One fabric rule: nothing that only works once. Merino wool and technical synthetics resist odor and can be worn two days. Cotton is comfortable but holds smell and dries slowly, which matters if you're sink-washing. A merino t-shirt costs more than a cotton one and does the work of two.

The honest caveat. Five tops for seven days assumes you'll wash something once, either in a sink or at a laundromat. If you genuinely won't do laundry, 7 nights needs 7 tops and the bag gets tighter, though it still fits. Sink washing works like this: wash in the evening with a detergent sheet, wring the item inside a dry towel by rolling and standing on it, then hang it. Merino is dry by morning. Cotton often isn't, especially in humidity, which is the real reason experienced one-baggers avoid cotton shirts.

Rolling vs Folding, and Whether Packing Cubes Actually Help

These two questions dominate every carry-on discussion, so here's the plain version.

Rolling wins on volume, folding wins on wrinkles. Most people should roll almost everything and fold the two items that matter, which is usually a dress shirt and one nice top. The hybrid gets you the space without arriving looking slept in.

Packing cubes don't create space by themselves. A standard cube is a container, not a compressor, and it adds a few ounces of fabric. What cubes actually do is stop the bag from turning into a pile when you open it, and they enforce a limit: when the top cube is full, that's your top count. That's genuinely useful for staying honest.

Compression cubes are different. They have a second zipper that squeezes air out, and they do save real volume on bulky items, roughly 20 to 30% on fleece and knits. They do nothing for dense items like jeans, because there's no air in a pair of jeans to remove.

A good default: one medium cube for tops, one small cube for underwear and socks, bottoms rolled loose in the bottom of the bag, shoes in a drawstring bag against the wheels where the space is dead anyway.

Wear the Bulkiest Things on the Plane

Anything you wear costs zero bag space, and this is the single largest lever in carry-on packing.

Wear on travel day: your heaviest shoes, your jacket, and your bulkiest layer. A pair of boots eats roughly a quarter of a 40 L bag. Worn, they cost nothing. A puffy jacket is the same story.

Planes are cold, so a layer you wear is a layer you'll want anyway. Fold it into the overhead bin or use it as a pillow. If you're worried about looking bulky on a hot departure day, carry the jacket rather than wearing it, since carried items aren't counted either.

One caution, which matters at ultra-low-cost carriers: a jacket strapped or bungeed to the outside of your bag makes the bag bigger, and that's exactly what gets flagged at the sizer. Wear it or carry it in your hand. Don't attach it.

Your Personal Item Is the Real Second Bag

The personal item is the most underused allowance in air travel. It fits under the seat in front of you, it's free on every major carrier, it never gets gate-checked, and it stays with you no matter what happens to the overhead bins. Typical sizes run from about 17 x 10 x 9 in to 18 x 14 x 8 in, so it's a genuine 15 to 20 liters, not a token.

Treat it as the bag that holds anything you can't lose and anything you'll want during the flight:

• Passport or ID, boarding passes, and a printout of your bookings
• Payment cards from two different banks, plus a small amount of cash
• All medication, in original labeled containers, full trip supply
• Phone, charging cable, wall block, headphones
• Power banks, kept accessible at your seat (see the rules below)
• Glasses, contacts, and a copy of the prescription
• Your quart bag of liquids, packed where you can pull it in three seconds
• One clean shirt and one set of underwear
• Snacks and an empty water bottle to fill after security
• A folded day bag for the destination

Power banks, updated 27 March 2026 under new ICAO guidance: a maximum of two spare power banks or lithium batteries per passenger, carry-on only and never in a checked bag, kept accessible at your seat rather than in the overhead bin, and no charging in flight, meaning you can't charge the bank and you can't charge devices from it. Some airlines apply stricter versions of this, so check yours. This is the newest rule on the list and the one travelers are getting caught by most often.

Keep it deliberately light. A stuffed personal item defeats the purpose. It stops sliding under the seat, and you can't find anything in it. If it's a backpack, use one with a laptop sleeve and one small organizer pocket, and resist filling the rest.

Toiletries: A Week in One Quart Bag

The quart bag is about 7 x 8 inches and holds 6 to 9 travel-size containers comfortably. That's plenty for a week if you use two tricks.

Solids don't count as liquids. A solid stick deodorant, shampoo bar, conditioner bar, soap bar, solid sunscreen stick, and toothpaste tablets are not liquids, gels, or aerosols, so they live outside the quart bag with no size limit. Swapping four liquids for four solids frees up half your bag.

Decant instead of buying travel sizes. Refillable silicone bottles in the 2 to 3 oz range are inexpensive and let you carry the products you actually use. Watch out for 4 oz bottles on the travel-size shelf, which look nearly identical to 3.4 oz and are over the limit.

Inside the quart bag, this works for a week: toothpaste, face wash, moisturizer, sunscreen, contact solution decant, and one hair product. Outside it: toothbrush, deodorant stick, razor, comb, hair ties, floss, nail clippers, and any solids.

Worked Example: 7 Nights in Lisbon, Carry-On Only

Two travelers, seven nights in September, highs around 78°F, one nice dinner, one day hike, laundromat available on day four.

The bag: 22 x 14 x 9 in cabin bag, about 40 L. Personal item: 18 L backpack.

Packed, traveler one: 5 tops (3 merino t-shirts, 1 button-down, 1 nicer top), 2 bottoms (1 pair chinos, 1 pair shorts), 1 light jacket, 8 sets of underwear and socks, 1 set of sleepwear, 1 swimsuit, 1 pair of packable flats. Rolled into a medium and a small cube, plus the shoes in a drawstring bag at the wheel end.

Worn on the plane: walking shoes, jeans, one t-shirt, and the light jacket. That's roughly 9 liters of bag space that cost nothing.

Quart bag: toothpaste 3 oz, face wash 2 oz, moisturizer 1.7 oz, sunscreen 3 oz, contact solution 3 oz, one hair product 2 oz. Six containers, seals flat. Outside it: shampoo bar, soap bar, stick deodorant, toothbrush, razor, comb.

Personal item: passports, two cards each from different banks, a small amount of local cash, prescription medication in labeled bottles, phone, 10,000 mAh power bank (about 37 Wh, well under limits, kept at the seat), cable and wall block, EU plug adapter, headphones, empty water bottle, two snack bars, one clean shirt, quart bag, folded day bag.

Weight of the packed cabin bag: 16.4 lb, which clears the 8 kg limit some European carriers apply on the return leg with a pound to spare.

The laundry step: on day four, one 30-minute wash and dry at a laundromat resets all five tops for pocket change. Without that stop, the same trip needs 7 tops and the bag goes to about 19 lb, still legal but tighter.

What this saved: four checked-bag fees, two on the way out and two on the way back, plus roughly 25 minutes at bag drop on departure and 20 to 30 minutes at the belt on each arrival. Over a week that's a whole evening, and the fees are the smaller half of what you got back.

What Not to Pack in a Carry-On

Some of these are rules, some are hard-won advice.

Not allowed in a carry-on at all: any liquid over 3.4 oz that isn't exempt, full-size aerosols, knives of any blade length, multi-tools with a blade, corkscrews with a foil cutter, and any sharp implement beyond a small pair of scissors under 4 inches from the pivot. Run anything questionable through our TSA item checker first.

Never in a checked bag: spare lithium batteries and power banks are prohibited in checked luggage entirely, so if you're forced to gate-check at the jet bridge, pull the power bank out first. Same for medication, chargers, and anything valuable.

Allowed but not worth the space: a hair dryer (nearly every hotel has one), full-size books, more than two pairs of shoes, a travel iron, more than one "in case we go somewhere nice" outfit, and beach towels. Almost everything on this list is either provided or buyable in 15 minutes.

If you're packing for a specific trip type, our travel essentials checklist organizes the same items by which bag they belong in, which is a useful cross-check once you have your pile on the bed.

Frequently Asked Questions

What size bag counts as a carry-on?

On most US full-service airlines it's 22 x 14 x 9 inches, including wheels and handles. Southwest and Frontier allow a slightly larger 24 x 16 x 10. Most European carriers use 55 x 40 x 20 cm and often add a weight limit of 8 to 10 kg, which US carriers usually don't enforce. Always check your specific airline, since the gate sizer is what settles it.

How many outfits do I need for a week in a carry on packing list?

Five tops, two bottoms, and one layer covers seven days, because that gives you 10 distinct outfits and bottoms can be re-worn three or four times. You'll need one laundry stop or one round of sink washing partway through. Without any laundry, plan on seven tops instead of five and you'll still fit.

Is it better to roll or fold clothes in a carry-on?

Roll almost everything and fold the two items that would show a crease. Rolling gets you roughly 10 to 20% more into the same bag because rolls fill gaps that flat stacks leave behind. Folding, or bundle wrapping, keeps dress shirts and blazers looking presentable.

Do packing cubes save space?

Standard cubes don't save space on their own, since they're containers and they add a few ounces. What they do is keep the bag organized and cap how much you bring. Compression cubes, the kind with a second zipper, genuinely save 20 to 30% on bulky knits and fleece, though not on dense items like jeans.

Can I bring a power bank in my carry-on?

Yes, and it has to be in your carry-on since spare batteries are banned from checked bags. Rules tightened on 27 March 2026: a maximum of two spare power banks per passenger, kept accessible at your seat rather than in the overhead bin, with no charging in flight. Most consumer banks of 10,000 to 20,000 mAh are around 37 to 74 Wh, comfortably within limits.

What counts as a personal item, and what should go in it?

A bag that fits under the seat in front of you, usually somewhere between 17 x 10 x 9 in and 18 x 14 x 8 in depending on the airline. Put anything irreplaceable in it: documents, all medication, payment cards, phone and charger, power banks, glasses, your quart bag, and one change of clothes. It's the only bag guaranteed to stay with you.

How do I fit a week of toiletries in one quart bag?

Switch what you can to solids, since a shampoo bar, conditioner bar, soap, stick deodorant, and toothpaste tablets aren't liquids and don't go in the bag at all. Decant the rest into 2 to 3 oz refillable bottles. That usually leaves you with six containers in the quart bag, which seals flat with room to spare.

What if my carry-on doesn't fit at the gate?

The gate agent will tag it and check it at the jet bridge, which is normally free but occasionally isn't on basic economy fares. Before you hand it over, pull out your medication, documents, chargers, and any power bank, since spare lithium batteries can't legally travel in the hold. Gate-checked bags on regional jets are usually returned at the jet bridge on arrival rather than the baggage belt.

One bag is a system, not a sacrifice. Start with the packing list generator to get the item list for your trip length, confirm the bag itself with the carry-on size checker, and settle anything questionable with the TSA item checker before you're standing at the belt.