Distance Calculator
Bangkok, Thailand → Tehran, Iran
Distance Result
3,389 miles
5,454 km | 2,945 nautical miles
Straight-line (great circle) distance
The distance from Bangkok to Tehran is about 5,454 km (3,389 miles) as the crow flies, or 2,945 nautical miles.
This is the great-circle distance — the shortest path over the surface of the Earth, computed with the haversine formula from the coordinates of both cities. Road or rail distance is always longer, and the gap widens with every mountain range or coastline in between.
Putting the number to use
- At a cruising speed near 800 km/h the airborne time is about 6.8 hours; add 30-45 minutes for taxi, climb and descent.
- Time zone difference changes the arrival time on your ticket far more than the flying time does.
- For shipping, use road or sea distance instead — great-circle figures understate real routes.
Driving
≈ 2d 12h
Estimated at 90 km/h average. Actual road distance is typically 15-30% longer than the straight line.
Flying
≈ 7h 10min
Estimated at 850 km/h cruising speed plus takeoff and landing time.
Route Map
Distances from Bangkok to Nearby Cities
Frequently Asked Questions
The straight-line (great circle) distance between Bangkok and Tehran is 3,389 miles (5,454 kilometers).
A direct flight from Bangkok to Tehran takes approximately 7h 10min, based on an average cruising speed of 850 km/h plus takeoff and landing time.
Driving from Bangkok to Tehran takes approximately 2d 12h, assuming an average speed of 90 km/h. Actual time depends on the route and traffic.