Carry-On Only Packing Guide: How to Pack for a Week in One Bag

To pack for a week or more in a carry-on, choose a bag that fits the common US airline limit of 22 x 14 x 9 inches, build a small wardrobe around two or three colors so everything matches, pack about five tops, two bottoms and one pair of extra shoes, and wear your bulkiest items on the plane. Use packing cubes, roll soft clothes, put liquids in a single quart-size bag under the TSA’s 3.4-ounce rule, and plan to do laundry once. Check your fare first; some basic economy and budget fares don’t include a full-size carry-on.

Traveling with only a carry-on is one of the simplest ways to make trips cheaper and less stressful. On most US airlines, the first checked bag costs about $35 to $45 each way, and fees have kept rising. With a carry-on only, you skip the bag drop line, walk straight out of the airport when you land, never wait at a baggage carousel and never have to worry about your suitcase ending up in a different city. You can switch flights more easily when plans change, take public transit from the airport without wrestling a giant suitcase and move between hotels without a struggle.

The hard part is fitting a week of life into a small bag. It is easier than most people think. The secret is not a magic folding technique but packing fewer, better-chosen items and accepting that you will wear things more than once. Nobody you meet on vacation will notice.

• 22 x 14 x 9 inTypical US carry-on size limit, including wheels
• 3.4 ozMaximum container size for liquids (100 ml)
• 1 quart bagFor all liquids, per passenger
• $70–$90Typical round-trip checked bag fee you save

Step 1: Check your fare and airline rules

Before you pack, check what your ticket allows. Most major US airlines, including American, Delta, Southwest and Alaska, allow one carry-on bag and one personal item on standard fares. But some fares are more restrictive:

• Basic economy on some airlines, including United on most domestic routes, allows only a personal item that fits under the seat. Bringing a full-size carry-on to the gate can mean paying a fee plus a gate handling charge.
• Ultra-low-cost carriers like Spirit, Frontier and Allegiant charge for carry-on bags on their cheapest fares. The fee is usually lower if you pay online in advance rather than at the airport or gate.
• Personal item sizes vary by airline, typically around 17 x 13 x 9 inches or smaller. Ultra-low-cost carriers are often stricter.
• Regional jets have small overhead bins, and standard carry-ons are often gate-checked and returned at the aircraft door.

Measure your bag including wheels and handles. Most US airlines don’t weigh carry-ons, but some international airlines enforce weight limits of around 7 to 10 kilograms (15 to 22 pounds). Our cheap flights guide explains how to compare fares including bag fees.

Step 2: Choose the right bag

There are two main options. A wheeled carry-on suitcase is easy on your back in airports and on smooth sidewalks, and it protects clothes from wrinkling. A travel backpack of about 35 to 45 liters works better on cobblestones, stairs, subways and trips with lots of moving around, and it often fits more because it has no wheels or handle system.

Look for a bag with a clamshell opening that unzips fully like a suitcase, compression straps, a padded laptop sleeve if you work while traveling and lightweight material. A lighter bag leaves more room for clothes within weight limits. For your personal item, a small backpack or tote that holds your laptop, documents, medicines, snacks and a change of clothes is ideal.

Step 3: Build a capsule wardrobe

The biggest space saver is a wardrobe where every piece goes with every other piece. Choose two or three neutral base colors, like navy, black, gray or tan, and add one or two accent colors. Every top should match every bottom, and one pair of extra shoes should work with everything.

Choose fabrics that pack small, resist wrinkles and dry quickly. Merino wool is a traveler’s favorite because it resists odors and can be worn several times between washes. Synthetic blends and technical fabrics dry overnight after a sink wash. Heavy denim and thick cotton sweaters take up the most space; wear them on the plane if you need them.

A 7-day carry-on packing list

For longer trips, don’t pack more. Pack the same amount and plan to do laundry. Many hotels and vacation rentals have washers or laundry service, and laundromats are easy to find. A small packet of laundry detergent sheets weighs almost nothing.

Step 4: Pack smart

• Use packing cubes to group items by type. Compression cubes squeeze out air and save space.
• Roll soft items like T-shirts and underwear; fold structured items like button-down shirts and blazers.
• Stuff shoes with socks, chargers or small items, and put shoes in a bag to keep clothes clean.
• Pack heavy items at the wheel end of a suitcase or close to your back in a backpack.
• Wear your bulkiest items, such as boots, a jacket and your heaviest pants, on the plane.
• Use jacket pockets for things you’ll need on the plane, like headphones and a phone charger.
• Leave a little room for souvenirs, or bring a foldable tote for the trip home.

Step 5: Toiletries and the TSA liquids rule

The TSA’s 3-1-1 rule applies to liquids, gels, aerosols, creams and pastes in carry-on bags: each container must be 3.4 ounces (100 milliliters) or less, and all containers must fit in one clear, quart-size, resealable bag, with one bag per passenger. The size limit refers to the container, not the amount inside, so a half-empty 6-ounce bottle isn’t allowed.

To save space and stay within the rule:

• Switch to solid toiletries: bar shampoo and conditioner, solid deodorant, toothpaste tablets and solid sunscreen sticks. Solids don’t count toward the liquids limit.
• Use small reusable travel bottles for liquids you can’t replace.
• Skip items your hotel provides, like shampoo, soap and a hair dryer.
• Buy sunscreen and other bulky liquids at your destination.
• Pack the liquids bag on top so you can remove it quickly at security if required.

Medications, baby formula, breast milk and medically necessary liquids are exempt from the 3.4-ounce limit in reasonable quantities, but you should declare them to the TSA officer. Our TSA carry-on rules guide lists other items that are allowed or banned, and TSA PreCheck can speed screening, with liquids and laptops allowed to stay in your bag in PreCheck lanes.

Electronics and batteries

Keep all electronics in your carry-on or personal item. Spare lithium batteries and power banks must travel in the cabin, not in checked bags, because of fire risk. If your carry-on is gate-checked, remove power banks and spare batteries first. A single universal charger with multiple USB ports and a short cable or two saves a lot of space compared with separate chargers for each device.

Documents and essentials

In your personal item, pack your ID or passport, a REAL ID-compliant license if flying domestically (see our REAL ID guide), boarding passes, medications, a credit card and some cash, glasses or contacts, a phone and charger, headphones, a refillable water bottle (empty at security) and snacks. Add one change of underwear and a T-shirt in case your carry-on is gate-checked and delayed.

What to leave at home

• “Just in case” outfits you probably won’t wear.
• More than two extra pairs of shoes.
• Full-size toiletries and hair tools your hotel provides.
• Heavy books; use an e-reader or phone.
• Bulky towels, unless you are going to the beach or camping.
• Anything you would be heartbroken to lose.

Packing for special trips

Cold weather: Wear your heaviest coat and boots on the plane. Pack thin, warm layers like merino base layers, a fleece and a packable down jacket, which compresses to the size of a water bottle. Gloves, a hat and a scarf fit in coat pockets. See our winter vacations guide for ideas.

Beach trips: Swimsuits and sandals take little space. Buy sunscreen when you arrive. Our beach vacation packing list has the details.

Business trips: Choose one blazer or jacket that matches all bottoms and wear it on the plane. Pack wrinkle-resistant shirts and dress shoes that can double for dinners.

Trips with kids: Carry-on only is harder with young children, but possible with laundry plans. Buy diapers and wipes at your destination, and use each child’s own carry-on allowance.

Doing laundry on the road

Laundry is what makes carry-on travel work for trips of any length. You have three easy options. The first is a sink wash: fill the sink with warm water and a little detergent, swish clothes for a few minutes, rinse, then roll each item tightly in a towel and stand on it to squeeze out water. Hang it overnight, and quick-dry fabrics will be ready by morning. A thin travel clothesline or a few clips helps. The second is a laundromat, which usually costs a few dollars per load and takes about 90 minutes, a good time to plan the next few days of your trip. The third is hotel or vacation rental laundry; many rentals have washers, and some hotels have guest laundry rooms, which are much cheaper than per-item laundry service.

Plan your laundry stop around the midpoint of your trip, and choose a day with a slow afternoon. If you are on a road trip, our road trip packing list shows how to adapt this system to a car.

Common mistakes

Packing for every possible scenario. If you need something unexpected, you can almost always buy it at your destination.

Bringing too many shoes. Shoes are the heaviest and bulkiest items in most bags. Two pairs, including the ones you wear, is enough for most trips.

Forgetting your fare’s rules. A basic economy ticket that allows only a personal item can turn a carry-on into an expensive gate fee.

Overstuffing the bag. A bulging suitcase may not fit the airline’s sizer or the overhead bin. Leave some flex.

Packing liquids at the bottom. Keep the quart bag on top so security goes quickly.

Packing new shoes. Break in footwear before you travel, especially if you plan to walk a lot.

At the airport

Board as early as your fare allows, since overhead bins fill up quickly and late boarders may have to gate-check their bags. Put your carry-on in the bin wheels first or sideways as instructed, and keep your personal item under the seat in front of you. If you’re asked to gate-check, take out medications, valuables, electronics and batteries first.

Frequently asked questions

Before your next trip

1. Check your airline’s carry-on and personal item rules for your fare.
2. Measure your bag, including wheels and handles.
3. Choose a two- or three-color capsule wardrobe.
4. Switch to solid toiletries and pack liquids in one quart bag.
5. Plan one laundry stop for trips longer than a week.