A baggage allowance sets out what baggage a passenger may take under the applicable airline rules and offer. IATA explains that allowances are airline-specific and can vary with factors such as cabin, aircraft and route. There is no single allowance to apply to every flight. Source: IATA: passenger baggage rules

Build a useful comparison

Record cabin baggage and checked baggage separately. For each, check the permitted pieces, dimensions and weight against the actual itinerary. Add any relevant charge to your comparison so the traveller can judge the offer they intend to buy.

If a customer mentions a pushchair, musical instrument or sports equipment, check that item specifically. Do not infer permission from an ordinary suitcase allowance.

A practical handover

Include the airline’s current baggage information with the booking details and explain which offer was selected. Keep a dated record of the allowance shown when advising the customer, because an unlabelled screenshot is difficult for another adviser to interpret.

For an itinerary involving more than one carrier, verify the applicable rules for the journey. Ask the airline or supplier to resolve uncertainty instead of applying a remembered rule to every connection.

Written and updated by Travelgenix. Sources checked on 16 October 2026. Worked examples and checklists are editorial illustrations and recommendations, not customer results.