The flight distance from Imam Khomeini International Airport (IKA) in Tehran, Iran to Singapore Changi International Airport (SIN) in Singapore, Singapore is 6,629 kilometers (4,119 miles / 3,579 nautical miles). The estimated flight time for this route is approximately 9h, flying east southeast at a heading of 113°.

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 Iran with Singapore. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 18:56 in Tehran, it's 23:26 in Singapore. The 4.5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 3,283 feet between the two airports. Singapore Changi International Airport sits lower than Imam Khomeini International Airport.

The return flight from Singapore (SIN) to Tehran (IKA) 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 Imam Khomeini International Airport (IKA) and Singapore Changi International Airport (SIN) detail pages, or use our flight duration calculator to compare other routes.