How accurate is the flight time estimate?

The estimate uses great-circle distance — the shortest possible path over the Earth — divided by a typical commercial cruising speed of 575 mph plus a 30-minute buffer for taxi, takeoff, and landing. Real flight times vary by winds aloft (jet stream), routing constraints, aircraft type, and airline schedule padding, so actual times may differ by 15–60 minutes.

What is great-circle distance?

A great circle is the shortest path between two points on a sphere (the Earth). Airlines roughly follow this path, which is why long-haul flights arc over the poles on a flat map. The Haversine formula is used to compute this distance accurately from latitude/longitude coordinates.

Why is a 30-minute buffer added?

Commercial flights spend time taxiing, taking off, climbing to cruise altitude, descending, and landing. This ground time averages about 20–35 minutes total and is not included in the airborne cruising calculation, so a 30-minute buffer provides a more realistic block time estimate.

Does this account for the jet stream?

No — the tool gives a neutral baseline estimate. Eastbound transatlantic and transpacific flights are often 30–90 minutes faster than the same route westbound due to prevailing jet stream winds.

Can I use city names instead of airport codes?

Yes. The dropdown lists both the IATA airport code and the city name. Use the browser's built-in search or scroll to find your airport.

Flight Time Estimator

Name: Flight Time Estimator
Availability: InStock
Author: Nham Vu

Enter two airports or cities to instantly estimate your flight duration based on great-circle distance and typical cruising speed.

Route Details

Departure Airport

Arrival Airport

Cruising Speed (mph)

Default 575 mph (~925 km/h) is typical for a narrow-body jet. Use 550 for wide-body or 490 for turboprop.

Popular Routes

Select departure and arrival airports, then click Estimate.

Total Flight Time

Miles (GC)

Kilometers (GC)

Time Breakdown

Phase	Duration

Summary

Enter two airports or cities to instantly estimate your flight duration based on great-circle distance and typical cruising speed.

How it works

Select or search for your departure airport from the list.
Select or search for your arrival airport.
Click "Estimate Flight Time" to calculate.
The tool computes the great-circle distance between the two coordinates.
Flight duration is derived from distance divided by cruising speed (575 mph), plus a 30-minute ground buffer.
Pick from popular preset routes for instant one-click estimates.

Use cases

Quickly plan how many hours to block for a trip before checking airline schedules.
Compare flight durations across multiple destination pairs.
Estimate layover feasibility when building a multi-stop itinerary.
Check whether a direct flight is faster than a connecting route.
Understand approximate flight times for lesser-served city pairs.
Help kids understand geography by exploring distances between world cities.

Frequently Asked Questions

Last updated: 2026-06-10 · Reviewed by Nham Vu