In brief. The time for the trip to the airport is counted as the sum of three parts: the trip to the airport + a buffer for the unexpected + the procedures inside the terminal. If you are flying with a change, the time for the connection between flights is added too. The main mistake is counting “to the minute”: any delay then turns into a missed flight. So a margin is added to each part.
Being late for a departure almost always has one cause — underestimated time. A simple calculation method removes this risk.
The three parts of the calculation
- The trip to the airport — taking possible jams or transport delays into account.
- A buffer for the unexpected — queues, finding the terminal, minor delays.
- The procedures at the airport — check-in, security, the walk to the boarding gate.
The sum of these three parts is the minimum to work from, not “I’ll make it like always”.
If you are flying with a change
For connecting flights, a separate block is added to the calculation — the time for the transfer between flights:
- take into account how long the walk between gates or terminals takes;
- do not plan the minimum interval — leave a margin;
- remember that a delay to the first flight affects the whole chain.
How to build in buffers
- to the trip, add a margin for traffic and transport delays;
- to the procedures — a margin for the queue, especially at security;
- to the connection — a margin in case the previous flight is delayed.
A simple self-check
Having counted the time, ask yourself: “What happens if something is delayed by 30 minutes?” If the answer is “I’ll miss the flight”, then the buffer is too small and needs increasing.
An example of the thinking
Say the airport is a two-hour trip away. Add a buffer for a possible jam, time for check-in and security, and, for a connecting flight, a margin for the transfer too. That way “two hours” quickly turns into a more realistic plan that does not fall apart at the first delay.
What to keep in mind
- better to arrive early and wait than to hurry;
- a trip with no transfers removes the riskiest block of the calculation;
- check flight times and transport timetables against official sources.
Frequently asked questions
How do I calculate the time to the airport?
Add up the trip to the airport, a buffer for the unexpected and the time for the procedures inside; for connections, add the time for the transfer.
How much should I allow for a connection between flights?
More than the minimum possible interval, so a delay to the first flight does not wreck the connection.
How do I know the margin is enough?
Imagine a 30-minute delay. If it means a missed flight, increase the buffer.