Most airlines require that your bag be 62 linear inches or less. Therefore, your bag's length, width and height cannot exceed 62 inches. This measurement includes the wheels and the handle of your luggage. To measure your bag, you'll want to grab a tape measure.

The 62-inch rule refers to the maximum linear dimensions (length + width + height) allowed for checked luggage on most major airlines without incurring an "oversized" fee. In 2026, airlines have become increasingly strict about this rule because oversized bags do not fit properly on automated conveyor belts or within standard luggage containers (ULDs). If your bag looks obviously bulky, agents will use a measuring tape during the check-in process. While a bag that is 63 or 64 inches might occasionally slip through if the flight is half-empty and the agent is having a good day, the reality is that most airlines now treat this as a hard limit. Oversized fees are significant, often ranging from $100 to $200 per flight segment. For this reason, it is risky to use massive "trunk" style suitcases or large duffel bags stuffed to capacity. If you frequently travel with gear that exceeds these dimensions, it is often more cost-effective to ship the items via a dedicated service or pay for a second "standard" sized bag rather than gambling on the 62-inch limit at the ticket counter.