excess baggage

Excess baggage is any luggage or cargo that surpasses the carrier's stated limits for size, weight, or quantity. For airlines, this typically means bags beyond the standard allowance (commonly one to two checked bags per ticket), or individual bags exceeding the weight limit (usually 23 kg per bag in economy class) or linear dimension sum (commonly 158 cm for length plus width plus height). The passenger or shipper pays a supplementary fee, calculated per excess bag or per kilogram overage, depending on the carrier's policy.

The allowance structure varies significantly across carriers and service classes. Premium cabin passengers often receive higher baggage allowances as part of their ticket. Charter airlines and budget carriers typically offer tighter restrictions, building ancillary revenue from excess charges. Rail services, freight forwarders, and shipping lines each maintain their own thresholds. Some carriers apply dimensional weight pricing, charging based on volumetric density rather than actual mass, which penalises large but light shipments.

Where overage comes from

Excess baggage arises when passengers miscalculate what they can bring, when commercial goods are packed inefficiently, or when the nature of cargo makes weight concentration unavoidable. Construction materials, machinery parts, and dense components frequently trigger excess charges. Weight creep is common in business travel: a 20 kg limit becomes problematic when sample cases, equipment, and personal items are combined.

The term itself is straightforward: baggage that exceeds set boundaries. The fees serve two functions: they deter overpacking, which improves aircraft or vehicle loading efficiency and safety margins, and they generate revenue for carriers. For shippers, the cost is often non-negotiable and must be factored into freight budgets. Understanding the specific limits of your chosen carrier before packing or shipping is essential, as fees can rival or exceed the ticket price itself on budget routes.