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.

Yes, in 2026, airlines are checking luggage size more strictly than ever before, often using automated laser scanners or the traditional "metal sizers" at the boarding gate. As the "carry-on crunch" has intensified, major carriers like American, Delta, and United have increased their enforcement of the standard 22 x 14 x 9 inch limit (which includes wheels and handles). Budget carriers like Frontier, Spirit, and Ryanair are particularly aggressive; if a bag does not fit perfectly into their sizer, they will charge a mandatory "gate-check fee" that can range from $60 to $100. Some 2026 airports are also testing "smart sizers" at the start of the security line to flag oversized bags before they even reach the gate. To avoid these surprise fees, travelers are now advised to measure their bags at home—including the "bulge" when fully packed—and to avoid the "expanded" configuration on expandable bags, as even an extra inch can trigger a manual inspection and a significant last-minute penalty during the boarding process.