Choosing the right carry on luggage size can make your travel experience easier and more convenient. The wrong suitcase size may cause problems at the airport, including extra fees, checked baggage requirements, or difficulty fitting your luggage into the overhead compartment.

Whether you are traveling internationally, going on a business trip, or planning a weekend getaway, understanding carry on luggage dimensions is essential.

In this complete carry on luggage size guide, we'll explain standard carry-on sizes, airline requirements, how to choose the right suitcase, and packing tips to maximize your travel space.

What Is Carry On Luggage?

Carry on luggage, also known as cabin luggage or hand luggage, is a suitcase or bag that passengers can bring onto an airplane and store in the overhead compartment.

Unlike checked luggage, carry on luggage stays with you throughout your journey, helping you:

Avoid baggage claim waiting times
Reduce the risk of lost luggage
Save money on checked baggage fees
Travel faster through airports

A well-designed carry on suitcase should be lightweight, durable, and sized correctly for airline requirements.

Standard Carry On Luggage Size

Standard Carry On Dimensions

22 x 14 x 9 inches
(56 x 36 x 23 cm)

This size is widely accepted by many airlines in North America.

However, carry-on size limits vary depending on the airline, especially for international flights.

Common carry on luggage sizes include:

Size	Dimensions	Best For
18 Inch	Small cabin luggage	Short trips
20 Inch	Standard carry on	Most travelers
21 Inch	International carry on	Frequent flyers
22 Inch	US airline carry on	Domestic flights

Before flying, always check your airline's official baggage policy.

Carry On Luggage Size Requirements by Airline

Different airlines have different carry-on size rules. Here are some common examples:

Airline	Maximum Carry On Size
American Airlines	22 x 14 x 9 inches
Delta Airlines	22 x 14 x 9 inches
United Airlines	22 x 14 x 9 inches
Southwest Airlines	24 x 16 x 10 inches
British Airways	Around 22 x 18 x 9 inches
Lufthansa	Around 21.7 x 15.7 x 9 inches

Requirements can change, so always confirm before departure.

What Size Carry On Luggage Do I Need?

For Weekend Trips

Recommended:

18–20 inch carry on luggage

Perfect for:

2–4 day trips
City breaks
Short business travel

Benefits:

✓ Lightweight
✓ Easy to carry
✓ Fits most overhead compartments

For International Travel

Recommended:

20–21 inch carry on luggage

Ideal for:

International flights
Europe travel
Long weekends
Frequent travelers

A compact but spacious suitcase allows you to pack clothing, electronics, and travel essentials while avoiding checked baggage.

For Business Trips

Recommended:

20 inch carry on suitcase + laptop backpack

This combination provides:

Professional appearance
Easy access to electronics
Better organization

A travel backpack with a laptop compartment works perfectly alongside a carry on suitcase.

How to Measure Carry On Luggage Correctly

1. Wheels

Wheels add extra height and must be included.

2. Handles

Extended handles are usually not counted, but fixed handles are included.

3. External Pockets

Front pockets and accessories may affect the total dimensions.

The correct measurement method:

Height × Width × Depth

Example:

20" × 14" × 9"

Carry On Luggage Weight Limits

Size is not the only factor. Some airlines also have weight restrictions.

Typical carry-on weight limits:

7 kg (15 lbs)
10 kg (22 lbs)
12 kg (26 lbs)

A lightweight suitcase helps you maximize your packing capacity.

When choosing luggage, look for:

Lightweight construction
Durable materials
Strong wheels
Efficient interior storage

Hard Shell vs Soft Shell Carry On Luggage

Hard Shell Carry On Luggage

Advantages:

✓ Better protection for belongings
✓ Water-resistant exterior
✓ Modern appearance
✓ Great for electronics and fragile items

Best for:

International travel
Frequent flyers
Long-distance trips

Soft Shell Carry On Luggage

Advantages:

✓ More flexible packing space
✓ Easier to squeeze into tight spaces
✓ Lightweight designs available

Best for:

Casual travelers
Short trips

How Much Can You Pack in Carry On Luggage?

Use Packing Cubes

Packing cubes help separate clothing categories and maximize space.

Roll Clothes Instead of Folding

Rolling reduces wrinkles and saves room.

Wear Bulky Items

Wear jackets and heavier shoes during travel.

Choose Multi-Purpose Clothing

Pack items that can be worn in different situations.

Why Choose OIWAS Carry On Luggage?

OIWAS carry on luggage is designed for modern travelers who need lightweight, durable, and practical travel solutions.

Features include:

✓ Lightweight hard shell design
✓ Smooth 360° spinner wheels
✓ Spacious organized interior
✓ Travel-friendly dimensions
✓ Stylish designs for every journey

Whether you are traveling for business, vacation, or international exploration, OIWAS helps you travel easier and smarter.

Frequently Asked Questions About Carry On Luggage Size

Is a 20 inch suitcase considered carry on luggage?

Yes. A 20 inch suitcase is commonly accepted as carry on luggage by many airlines, but always check your airline's specific requirements.

Is 24 inch luggage a carry on?

Usually no. A 24 inch suitcase is generally considered checked luggage because it exceeds most airline carry-on size limits.

What is the best carry on luggage size for international travel?

A 20–21 inch suitcase is often a good choice for international travel because it balances packing space and airline compatibility.

Can I bring a carry on suitcase and backpack?

Many airlines allow passengers to bring one carry on suitcase plus one personal item, such as a backpack or laptop bag. Check your airline's policy before traveling.