1. Choose an airline
See allowed dimensions, fare notes and official airline baggage rules.
Carry-on luggage sizes for 60 airlines in 2026
Allowed cabin bag sizes vary by airline, fare, route and booking time. This checker helps you compare your bag against editorially maintained airline limits and opens matching Amazon searches by size class.
The page is strongest for long-tail searches such as “does my backpack fit Ryanair”, “40x30x20 cabin bag”, “55x40x23 carry-on suitcase” or “easyJet cabin bag weight”. Very short keywords like “carry-on” are much more competitive.
All information is provided without warranty. Always open the official baggage rules before your flight.