Iran Closes Airspace, Impacting Major Global Flight Routes

• •Iran closed its airspace on June 14, 2026, affecting major international flight routes.
• •Rerouting flights adds 2-5 hours of travel time and increases fuel costs by 10-20%.
• •Only flights with prior authorization from Iran's civil aviation authority are permitted.

On June 14, 2026, Iran announced a complete closure of its airspace, affecting the Tehran Flight Information Region. This closure impacts critical aviation routes between Europe and Asia, forcing reroutes that add 2-5 hours of travel time and increase fuel costs by 10-20%. The Iranian Civil Aviation Organization's NOTAM prohibits all flights except for those with prior authorization. This is the most extensive airspace restriction since the conflict escalated in February 2026, coinciding with failed ceasefire talks. The closure disrupts major routes for airlines like Air India and Singapore Airlines, which previously utilized Iranian airspace. The European Aviation Safety Agency's advisory on Middle East conflict zones is rendered moot as flying over Iran is no longer an option. The situation reflects heightened tensions and instability in the region.