US Domestic Standard: 22 x 14 x 9 Inches (56 x 36 x 23 cm)
United, Delta, American, JetBlue, Alaska, and Hawaiian standardize overhead carry-on bags at 22 x 14 x 9 inches (including wheels and handles) with no strict weight limit on most US mainline aircraft, alongside an under-seat personal item around 18 x 14 x 8 inches.
European & Asian Carry-On Weight Limits (7 kg to 12 kg)
While British Airways allows up to 23 kg per cabin bag, Lufthansa and SWISS enforce an 8 kg (17.6 lb) carry-on limit, Air France and KLM allow 12 kg combined across carry-on + personal item, ANA and Japan Airlines allow 10 kg, and Emirates, Qatar Airways, Singapore Airlines, and EVA Air enforce a 7 kg (15.4 lb) Economy cabin bag limit.
Choosing a Universal International Carry-On Suitcase
A 21.5 x 13.8 x 9 inch (55 x 35 x 23 cm) lightweight polycarbonate or softside spinner under 6 lbs empty complies with virtually every US, European, and Asian mainline carrier.
Frequently Asked Questions
Do carry-on dimensions include the wheels and handle?
Yes. Airline sizer boxes at the boarding gate measure total exterior dimensions including spinner wheels, side handles, and front pockets.
What items do not count toward my carry-on allowance?
A jacket or coat, umbrella, duty-free shopping bag purchased airside, assistive medical devices (such as a CPAP machine), and collapsible strollers/diaper bags when traveling with an infant.