DataFlight
Airline fees and baggage rules change, and every figure here carries the date it was checked against the airline's own published page. Always confirm with the airline before you fly. Flight search is provided by Kiwi.com and this site is paid a commission on bookings made through it, at no cost to you and with no effect on what is published here.

Cabin bags, checked bags, and the rules behind the numbers

Nineteen million searches a month are people trying to find out whether their bag will fit. What the dimensions mean, how they are enforced, why two airlines measuring the same bag disagree, and what happens at the gate when it does not fit.

Compare fares first

Search across airlines, then check what each one charges on top — the pages below are where the second number lives.

Search results are provided by Kiwi.com. If you book through them this site is paid a commission, at no cost to you and with no effect on the prices you are shown or on anything published here.