Work out block time instantly with clear inputs, formula shown and shareable results.
Block time runs from chocks off to chocks on, so it is airborne time plus taxi out, taxi in and any holding allowance. It is the figure used for crew pay, aircraft utilisation, schedule building and direct operating cost, which is why it always exceeds flight time.
Block time
Block = airborne + taxi out + taxi in + holding allowance
Aviation results are planning estimates only. Always verify take-off, landing, fuel, weight and balance figures against the certified Aircraft Flight Manual, current performance charts and applicable aviation regulations before flight.
Crews are on duty and the aircraft is unavailable for the whole block period, so costs and utilisation accrue over block hours, not just airborne hours.
Because 20 minutes of taxi is a large share of a 40 minute flight, pushing block fuel and block cost per mile up sharply.