How to Pack Carry-On Only: The Complete 2026 Guide

The bag-fee savings on a single roundtrip, by airline (2026 rates from our bag-fee guide):

On 3 roundtrips per year at $80 per checked bag, carry-on only saves $240 per year. On 6 trips: $480. Over 5 years of travel: $1,200 to $2,400. A $250 carry-on bag pays for itself in 2 to 3 trips and lasts a decade.

The size your bag must fit. The US standard is 22 x 14 x 9 inches (45 linear inches). Budget carriers are stricter. Always check your most restrictive airline.

The safe buy: a bag that fits 22 x 14 x 9 inches (or 55 x 35 x 23 cm). That clears every major US airline and most international full-service carriers. If you fly European budget carriers (Ryanair, EasyJet, Wizz), size down to 40 x 20 x 25 cm for the free underseat bag, or pay for priority boarding to use the overhead.

Five tops, three bottoms, two pairs of shoes, one jacket. Every top works with every bottom. Every piece is a neutral colour (black, navy, grey, white, khaki). This formula covers 3 days to 2 weeks with one mid-trip laundry stop.

Two rules that make this work. First: wear your bulkiest items on the plane (jeans, walking shoes, jacket). They do not take up bag space. Second: plan one laundry stop at the midpoint of any trip over 7 days. A hotel sink wash takes 15 minutes and dries overnight. A laundromat takes an hour and costs $5. Either one means you pack for 7 days, not 14.

The TSA 3-1-1 rule has not changed since 2006: liquids must be in 3.4 oz (100 ml) containers, all fitting in one quart-size clear bag, one bag per person. The easiest way to deal with this rule is to make it irrelevant.

• Switch to solid toiletries. Shampoo bar, conditioner bar, solid deodorant, bar soap. None of these count as liquids. No quart bag needed. No size limit. Brands like Ethique, HiBAR, and Lush make travel-sized solid versions of everything.
• Solid toothpaste tablets (Bite, Hello, DentTabs) replace toothpaste tubes.
• Solid sunscreen sticks replace sunscreen bottles.
• If you must pack liquids: decant into reusable silicone tubes (GoToob, Humangear), fill only what you need for the trip, and put them in the quart bag.
• Buy anything you forget at the destination. Toothpaste, sunscreen, and basic toiletries are available everywhere and cheaper than overpacking.

• Packing cubes. The single best packing investment. Tops in one cube, bottoms in another, underwear and socks in a small cube. Compress each cube before closing. A 3-cube set turns a messy bag into an organised wardrobe.
• Rolling vs folding. Roll t-shirts and soft fabrics (saves 15 to 30% space over folding). Fold structured items (button-downs, dress pants) to prevent creases. Bundle wrapping (wrapping items around a core object) saves the most space but is harder to unpack mid-trip.
• Shoes on the bottom. Place your packed shoes sole-down at the bottom of the bag (heel towards the wheels on a roller). Stuff socks and underwear inside the shoes to fill dead space.
• Electronics flat against the back panel. Laptop, tablet, and chargers go in the laptop compartment or flat against the back of the bag. This keeps weight centred and the bag stable in the overhead bin.
• Quart bag accessible. TSA requires you to remove the liquids bag at security (unless you have TSA PreCheck or are at an airport with CT scanners). Keep it in an outer pocket, not buried under clothes.

The winter list is the hardest to fit carry-on only. The trick: wear the coat, the boots, the gloves, the beanie, and the heaviest layer on the plane. None of those go in the bag. What goes in the bag is the same 5-3-2-1 capsule as a warm-weather trip, just in heavier fabrics.