Reports focusing on Ryanair and easyJet, with references also to British Airways, describe how some airlines enforce strict cabin-bag size rules and charge passengers for oversized or non-compliant bags. The coverage says the penalties can be as much as £70, and it characterises the practice as a way airlines generate revenue from baggage fees rather than travel fares. The articles also state that these charges are expected to increase, though they do not provide detailed figures across all routes or ticket types.

The reporting highlights that cabin-bag policies vary by airline and are tied to measured dimensions and enforcement at check-in or boarding. It also notes that passengers may be required to pay additional fees when items exceed the allowed cabin limits.

Overall, the sources focus on the level of fees and the prospect of higher charges, presenting the issue primarily from the perspective of reported passenger penalties and potential airline earnings, while acknowledging the existence of formal baggage rules that passengers must meet.