How to Pack a Carry-On for a Week: Step-by-Step

Packing a week into a carry-on is not about folding tighter. It is about packing fewer, more useful things and planning one laundry session. For most trips, a five-day capsule wardrobe plus a midweek wash covers seven days without paying for checked luggage or wrestling a heavy bag through the airport.

The short version:

• Measure your bag against your airline's limit, including wheels and handle.
• Build a capsule in two colors: about five tops, two bottoms, two layers, and two pairs of shoes.
• Wear your bulkiest shoes and outer layer on travel day.
• Keep liquids in one clear quart bag, with containers of 3.4 ounces or less.
• Put documents, medication, chargers, and one change of clothes in the personal item.

Ten minutes of checking saves a repack at the gate. Before you pull clothes out of the closet:

• Look up the carry-on size and weight limit for every airline on your itinerary. Low-cost carriers often enforce limits more strictly than legacy airlines.
• Read the forecast for each stop, not just the first city. A light layer handles a cool morning better than a separate outfit.
• Note any day that needs a specific outfit: a hike, a business meeting, a nice dinner, a pool, or a religious site.
• Find out whether your lodging has laundry. A sink and a travel clothesline can replace a machine for quick-dry items.
• Put a luggage scale near the bag. A carry-on can be the right size and still be over the weight limit.
• Write a list by category rather than by outfit: tops, bottoms, layers, shoes, sleepwear, underwear, toiletries, electronics, documents.

The exact numbers depend on your climate and laundry access, but this formula works for a mild-weather city trip. Adjust the fabrics, not the structure. Two colors plus one accent is easier to manage than a bag full of statement pieces. If you need a dressier outfit, pack one item that can dress up both bottoms, such as a clean button-down or a simple dress, rather than a second wardrobe.

Packing cubes are not magic, but they turn a suitcase into drawers. Group by category, not by day: one cube for tops, one for bottoms and underwear, one for electronics and chargers. Put the cube you need least at the bottom and the one you will open first at the top or in the lid.

Security rules are not packing preferences. In the US, TSA limits liquids, gels, and aerosols to 3.4 ounces (100 ml) per container, all inside one clear quart-sized bag, one bag per passenger. Medically necessary liquids are handled separately; tell the screening officer before your bag goes through. Prescription medication belongs in your carry-on, ideally in its labeled container. Spare lithium batteries and power banks are not allowed in checked bags; keep them in the cabin with the terminals protected. Sharp items, tools, and some sporting equipment are restricted, so check the current rules before you pack. On international trips, the rules at a connection can be stricter than at your departure airport.

Most carry-on failures are predictable. Fix these before you leave:

• Packing for seven full days. Pack for five and plan one wash. A midweek load is faster than hauling a heavy bag.
• Trusting the bag's label. Measure it yourself, including wheels and handle. Airline sizers are unforgiving.
• Rolling everything. Knits roll well; structured shirts and dresses crease. Fold those or use the bundle method.
• Burying the liquids. Security will ask you to dig them out. Keep the quart bag at the top.
• Packing shoes loose. Dirty soles touch clean clothes. Bag them or put them heel-to-toe at the bottom.
• Skipping the personal item. A gate-checked carry-on leaves you with nothing if all your essentials are inside it.
• Over-compressing. If the zipper is strained, the bag is too full. Remove one layer, not one essential.
• Forgetting weight. A bag can fit the sizer and still be over the airline's weight limit. Weigh it at home.

Day three or four is the natural reset point. Wash quick-dry tops, underwear, and socks in the sink with a little detergent, roll them in a towel to remove water, and hang them overnight. Use a travel clothesline in the bathroom or drape items over a chair near a window. If your lodging has a machine, do one small load and dry only what needs it. Repack the clean clothes into the same cubes and put dirty items in a separate bag. The second half of the trip then feels like a fresh bag, not a shrinking pile of worn clothes.