Space Allocation
Lower deck volume on commercial passenger aircraft provides dedicated cargo room beneath the main cabin floor for loose baggage and palletized freight. Air freight markets rely on belly hold capacity as passenger flight schedules dictate available cargo volume across international routes. Seasonal tourism peaks expand lower deck space automatically, whereas winter schedule reductions contract freight availability independently of shipping demand.
Cargo handlers fit standardized containers into these spaces, balancing weight limits against volumetric space.
Revenue Yield
Passenger airlines price lower deck freight space to maximize total flight revenue, shifting freight rates dynamically as passenger booking density changes. When passenger ticket sales cover primary flight operating costs, cargo rates on belly hold capacity drop to marginal cost levels to fill remaining payload. Conversely, light passenger loads require higher freight rates to maintain route profitability.
High-value freight forwarders monitor passenger schedule changes to secure lower deck space, balancing lower spot rates against the risk of offloading when passenger luggage volume unexpectedly exceeds projections. Payload weight restrictions on long-range flights often force carriers to leave available volume empty, creating artificial scarcity despite physical space.
Operational Constraint
Maximum payload limits restrict available freight weight regardless of physical volume. Heavy cargo reaches maximum takeoff weight boundaries before lower deck holds fill completely.