The flight distance from London Stansted Airport (STN) in London, United Kingdom to Mehrabad International Airport (THR) in Tehran, Iran is 4,368 kilometers (2,714 miles / 2,359 nautical miles). The estimated flight time for this route is approximately 6h, flying east at a heading of 94°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

This is an international route connecting United Kingdom with Iran. It is an intercontinental flight between Europe and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 22:35 in London, it's 02:05 in Tehran. The 3.5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 3,614 feet between the two airports. Mehrabad International Airport sits higher than London Stansted Airport.

The return flight from Tehran (THR) to London (STN) follows a heading of 311° (northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the London Stansted Airport (STN) and Mehrabad International Airport (THR) detail pages, or use our flight duration calculator to compare other routes.