Estimate the time needed to travel to the airport and clear the terminal.
Each stage is largely independent of the others, so the total is a simple sum. Security screening is the most variable stage and the one worth the largest contingency. Missing a flight costs the fare plus the rebooking, which makes a generous contingency far cheaper than the alternative.
Airport Transfer Time
Total = travel + parking + check-in + security + walk + contingency
Total = travel + parking + check-in + security + walk + contingency Each stage is largely independent of the others, so the total is a simple sum. Security screening is the most variable stage and the one worth the largest contingency.
Missing a flight costs the fare plus the rebooking, which makes a generous contingency far cheaper than the alternative.
This calculator takes 6 inputs: Travel time to the airport, Parking and shuttle time, Check-in and bag drop, Security screening, Walk to the gate, Contingency. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.