Flight duration calculator
Ticket times are local to each city, so the tool converts both to UTC and subtracts to give the true time in the air.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter departure date, local departure time, departure utc offset, arrival date, local arrival time and arrival utc offset.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Duration = (arrival time − arrival offset) − (departure time − departure offset), offsets in hours from UTC.
Example
Inputs: Departure date = 2026-10-01, Local departure time = 10:00, Departure UTC offset = 3 h, Arrival date = 2026-10-01, Local arrival time = 14:30. Result: Flight duration: 6:30 h:mm; In minutes: 390 min.
Limits and caveats
- Enter each city's offset in effect on the travel date, allowing for daylight saving time.
- Scheduled times usually include taxi time on the ground.
Questions about this tool
Why not just subtract the two times?
Each time is in its own zone. Riyadh 10:00 to London 14:30 is 6:30, not 4:30.
How do I enter India or Iran time?
Use decimals: India 5.5, Iran 3.5, Nepal 5.75.
What if I land the next day?
Set the arrival date to the next day, as shown on your ticket.