What is the best carry-on luggage size?
Most major US airlines set carry-on limits around 22" x 14" x 9" (56 x 36 x 23 cm), including wheels and handles, but exact figures vary by carrier and sometimes by fare class. Choosing a bag around 21-21.85" in the longest dimension, like most picks above, leaves a safety margin under the common 22" ceiling. Always confirm your specific airline's current limit before flying — see /guides/carry-on-dimensions for an exact by-airline table.
Is hardshell or softside better for carry-on luggage?
Hardshell resists crushing better when a bag gets gate-checked or stacked in an overhead bin, and sheds rain and dirt more easily. Softside bags are usually lighter empty and flex to fit into a tighter overhead bin, which matters on a fuller flight. Most travelers do well with hardshell; frequent flyers who value every ounce of weight allowance often prefer softside.
How much should an empty carry-on suitcase weigh?
Look for 6-8 lbs empty. Every pound the empty bag weighs is a pound you can't pack, and airlines that weigh carry-ons (common outside the US, especially on budget carriers) can turn a heavy empty bag into an overweight bag before you've packed anything.
Do all airlines allow the same carry-on size?
No — carry-on size limits vary meaningfully by airline, and budget carriers in particular often set stricter limits than the roughly 22" x 14" x 9" standard common among major US airlines. Always check your specific airline's current published limit before your trip; it can also differ by fare class on the same airline.
Should I get a spinner or two-wheel carry-on?
A four-wheel spinner (eight wheels total, two per corner) is the better choice for nearly everyone — it rolls smoothly in any direction through a crowded terminal without tilting or dragging. Two-wheel inline bags are more durable on rough terrain but are a real hassle in an airport.
What's the difference between carry-on luggage and a carry-on backpack?
Carry-on luggage is a rolling suitcase, best when you're mostly moving between a car, a hotel, and a check-in counter and don't want to carry weight on your back. A carry-on backpack is better if you're navigating uneven ground, stairs, or long walks between transit connections where wheels become a liability. See /gear/carry-on-backpack for the backpack picks.
How long should a carry-on suitcase last?
A well-built carry-on should last five to ten years of regular flying, with wheels, zippers, and handle mechanisms as the most common failure points before the shell itself. Brands offering a lifetime or multi-year warranty against these specific failures, like several picks above, are a good signal of expected real-world durability.
What counts as a carry-on bag — does it have to be a suitcase?
No. "Carry-on bag" just means any bag that meets your airline's size and weight limit for the cabin — a rolling suitcase, a backpack, or a duffel can all qualify, as long as it fits the dimensions. Airlines don't check the bag's style, only its size when measured (including wheels and handles) and, on some carriers, its weight.
How many carry-on bags is each passenger allowed?
Most airlines allow one carry-on bag plus one smaller personal item (a purse, laptop bag, or small backpack that fits under the seat) per passenger. Budget carriers sometimes reduce this to personal-item-only on their cheapest fares, charging extra for a full carry-on — always check your specific fare's allowance before flying.
Do carry-on bags get weighed, searched, or need to be clear?
In the US, carry-ons are typically not weighed at the gate, but many international and budget airlines do weigh them and will charge a fee or require a gate-check if the bag is over the limit. Every carry-on goes through X-ray screening at security, and TSA can open and hand-search any bag; a TSA-accepted lock lets them do this without cutting your lock off. Clear or see-through carry-ons are not a standard requirement in the US — that's a stadium/venue rule, not an airline one.
Should I lock my carry-on bag?
Yes, if it has a working zipper lock — use a TSA-accepted combination lock so security can open it without damaging the bag if a hand search is needed. A locked carry-on that never leaves your side in the cabin is mostly a deterrent against opportunistic theft in an overhead bin, not a security requirement.
My carry-on's telescoping handle won't go down or is stuck — what do I do?
First check for a small release button or lever near the top grip, which some handles require you to hold while pushing down. If the handle is jammed rather than just resistant, debris in the tracks (sand, lint) is the most common cause — try working each side down evenly rather than forcing one side. If it's still stuck, most brands with a multi-year or lifetime warranty (see picks above) will repair or replace a handle mechanism failure.
Are there carry-on rules for kids, pets, or bus travel?
Kids typically get their own full carry-on allowance once they have their own ticketed seat, though a lap infant usually only gets a personal item. Pet carriers that fit under the seat generally count as your personal item, not an extra bag. Bus lines like Greyhound have their own separate, usually more generous, carry-on and checked-bag allowances that don't follow airline rules at all.
Is there a carry-on without a zipper?
Yes — zipperless, latch-based carry-ons are a real and growing category, most often built around an aluminum or aluminum-magnesium frame that closes with buckle latches instead of a fabric zipper track, which resists being popped or picked open. Rimowa's aluminum line is the best-known example of this design. None of the five picks above are zipperless — all five close with a standard zipper — so if a latch-based, zip-free shell is a hard requirement, look at Rimowa's aluminum line rather than the picks above.
How does this list compare to Wirecutter or Consumer Reports?
Outlets like Wirecutter, Consumer Reports, GQ, Good Housekeeping, and similar review sites run their own independent lab and long-term wear testing, and their picks are worth reading alongside this page, not instead of it. This list is built differently: every pick above is checked against real published airline size and weight limits rather than just marketing copy, and warranty length is used as a durability signal — a lifetime or multi-year warranty against cracked shells and broken wheels means a brand expects its bags to survive real airline handling. That's the "real picks, not spec-sheet fiction" standard this page is built to, and it's worth cross-referencing against outlets that run physical drop tests and multi-year durability trials, which this page doesn't claim to replace.
What's the best carry-on luggage for kids?
Kids traveling with their own ticketed seat get the same full carry-on allowance as an adult, not a smaller kids-specific allowance — the size and weight limits above apply either way. What matters more for a young or smaller traveler is a bag they can actually lift into an overhead bin and maneuver through a terminal alone: the lighter picks above, like the Travelpro Maxlite 5 (5.5 lbs empty) or the Monos Carry-On Pro (6.4 lbs empty), are easier for a kid to handle than a heavier hardshell. See /packing-list/family for a full family packing list.
Which carry-on holds the most or fits a laptop for business travel?
None of the picks above list a dedicated laptop compartment or a capacity figure in liters, so don't expect a padded laptop sleeve built into any of these bags — pair whichever pick you choose with a separate laptop bag or sleeve if you're carrying a computer. For maximizing usable space, the Away The Carry-On's built-in compression system is the most explicitly capacity-focused feature among the five picks, fitting more without overstuffing the shell; the Travelpro Maxlite 5 and July Carry On Lite are both expandable or built with compression straps for extra room when needed. For business travel specifically, weight and structure matter more than raw volume: Away's clean, professional look and optional interior battery for charging devices, and July's slim profile with compression straps to keep contents secure when not full, are the two best suited to a business trip among the picks above.