The flight distance from Bandaranaike International Apt Colombo Airport (CMB) in Colombo, Sri Lanka to Semnan Airport (SNX) in Semnan, Iran is 4,147 kilometers (2,577 miles / 2,239 nautical miles). The estimated flight time for this route is approximately 6h, flying northwest at a heading of 323°.

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

Time zone information: When it's 18:55 in Colombo, it's 16:55 in Semnan.

There is a significant elevation difference of 3,635 feet between the two airports. Semnan Airport sits higher than Bandaranaike International Apt Colombo Airport.

The return flight from Semnan (SNX) to Colombo (CMB) follows a heading of 133° (southeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Bandaranaike International Apt Colombo Airport (CMB) and Semnan Airport (SNX) detail pages, or use our flight duration calculator to compare other routes.