Luggage Size Guide: What Size Suitcase Do You Need?

Luggage Sizes Explained

Walk into any luggage store — or scroll through any luggage website — and you'll find bags in every size from 14" to 32". But what do those numbers actually mean, and which size is right for your trip? This guide breaks it all down so you can shop with confidence.

The Three Categories of Luggage

Every piece of luggage falls into one of three categories: personal item, carry-on, or checked bag. Understanding the difference is the foundation of smart packing.

Personal Item (Under 18")

A personal item is the small bag that goes under the seat in front of you. Most airlines allow one personal item in addition to your carry-on — at no extra charge.

Personal Item Size Rules 

Most airlines allow personal items up to approximately 18" x 14" x 8", though this varies by carrier. Common personal items include:

• Purses and handbags
• Small backpacks
• Laptop bags
• Small duffel bags
• Tote bags

Best For:

Day trips, commutes, or as a companion to your carry-on on longer trips. Use it for your laptop, snacks, documents, and anything you need during the flight.

Great personal item options: the Reign Supreme Short Distance Bag and the Traveler's Waterproof Carry-On work perfectly as personal items on most airlines.

Carry-On Luggage (18"–22")

A carry-on is the bag that goes in the overhead bin above your seat. It travels with you in the cabin — no checked bag fee, no waiting at baggage claim, no risk of lost luggage.

Carry-On Size Rules

Most major U.S. airlines (Delta, United, American, Southwest) allow carry-ons up to 22" x 14" x 9" including wheels and handles. International and budget carriers often have stricter limits — always check before you fly.

The sweet spot: a 20" carry-on. It fits in virtually every overhead bin worldwide and meets the size requirements for nearly all airlines.

Best For:

• Weekend trips (1-3 days)
• Week-long trips when you pack light
• Business travel
• Any trip where you want to avoid checked bag fees

Top Carry-On Picks:

• Journey's 20" Hard-Shell Carry-On — best overall, expandable, TSA lock
• Elite Pro Aluminum Carry-On — best premium, no-zip, indestructible
• PROMAX 20" Zipperless with USB — best tech features
• Skyview Business Carry-On — best for business travelers
• BANGE 35L Expandable Backpack — best carry-on backpack

Medium Checked Luggage (23"–25")

The mid-size checked bag is the workhorse of travel luggage. It's large enough for a week-long trip but not so large that it becomes unwieldy.

Best For:

• Week-long trips (5-7 days)
• Family travel where everyone shares one bag
• Trips where you need to pack shoes, bulky items, or gifts
• Destinations with laundry access (pack less, wash mid-trip)

A 24" checked bag is the most popular size for good reason — it hits the sweet spot between capacity and manageability. Look for it in our GETAWAY 3-Piece Set and DESTINATION Softside Set.

Large Checked Luggage (26"–32")

Large checked bags are built for extended travel, family trips, and anyone who refuses to do laundry on vacation.

Best For:

• Extended trips (2+ weeks)
• Family vacations where one bag serves multiple people
• International travel with lots of gear
• Bringing back souvenirs (pack an expandable bag)

Important: Most airlines have a weight limit of 50 lbs for standard checked bags. A 28" bag can easily exceed this when fully packed — use a portable luggage scale to weigh your bag before you leave for the airport.

Top large checked picks: the DESTINATION Full Travel Set and the RISING SUN DESTINATION 6-Piece Set.

Quick Reference: Luggage Size Chart

• 14"–18": Personal item / underseat bag — day trips, personal item slot
• 18"–20": Carry-on — weekend trips, 1-3 days, overhead bin
• 20"–22": Large carry-on — up to 1 week if packing light, overhead bin
• 24": Medium checked — 5-7 days, checked bag
• 28": Large checked — 1-2+ weeks, checked bag
• 30"–32": Extra-large checked — extended travel, family trips

How to Choose the Right Size for Your Trip

Use this simple decision guide:

• 1-3 days: Personal item + carry-on. No checked bag needed.
• 4-7 days: 20" carry-on if you pack light; 24" checked if you need more room.
• 1-2 weeks: 24" checked bag, or a 20" carry-on + 24" checked for flexibility.
• 2+ weeks or family travel: 28" checked bag, or a full luggage set (20"/24"/28").

Pro tip: When in doubt, go smaller. You can always do laundry. You can't always avoid a checked bag fee — or a bag that won't fit in the overhead bin.

Don't Forget the Extras

Whatever size bag you choose, these accessories make every trip smoother:

• Packing cubes — maximize every inch of space in any size bag
• Portable luggage scale — never pay an overweight bag fee again
• Luggage tracker — know where your bag is at all times
• Luggage straps with locks — extra security for checked bags

Shop by Size

Ready to find your perfect bag? Browse our full collection of carry-on luggage — from personal item-sized bags to complete luggage sets in every size. Every bag ships with TSA locks, spinner wheels, and the quality you deserve.

Right size. Right trip. Every time.