FBOs at Imam Khomaini International OIIE IKA

Airport security

Tehran and the surrounding region are subject to the highest-tier travel advisories issued by the United States (Level 4: Do Not Travel), the United Kingdom (Advise Against All Travel), and Australia (Do Not Travel), with UK and Swiss diplomatic staff temporarily withdrawn from Iran due to the prevailing security situation.

The city faces an active and severe threat environment encompassing terrorism, widespread civil unrest, arbitrary detention of foreign and dual nationals, and kidnapping risk, with ongoing restrictions on internet, mobile, and transportation networks reported as recently as mid-2026.

Iran's airspace has been subject to closure following large-scale military strikes and retaliatory actions in 2026, and civil aviation access to and from Tehran remains significantly disrupted.

OIID (Doshan Tappeh) is a closed military installation operated by the Islamic Republic of Iran Air Force (IRIAF), with no civilian terminal, no published passenger screening framework, and no commercial flight operations; its runways are maintained solely for contingency and emergency use.

As a non-public military facility, access is governed entirely by IRIAF security protocols under Iranian state authority, and no international body — including ICAO, FAA, EASA, or the Iranian Civil Aviation Authority — has published an applicable civilian security classification or screening standard for this installation.

No independent assessment of Iran's civil aviation authority compliance with international safety oversight standards has been completed by the FAA.

Customs, immigration and regulatory

Hours: Not applicable — no civil customs function at this facility. Doshan Tappeh is an active IRIAF military base with no civil customs capability; all civil international arrivals in Tehran are processed at Imam Khomeini International Airport (OIIE).

Ground corridor

AVOID ADVISORY: FCDO advises against all travel to Iran (current as of 28 July 2026); US State Department maintains Level 4 Do Not Travel; Australian DFAT also advises Do Not Travel — any movement to, from, or within Iran is strongly contraindicated.

Eastern Tehran, where Doshan Tappeh is located on Piroozi Street, experiences severely congested traffic conditions driven in part by the military base footprint itself, and the area should be avoided entirely by non-IRIAF personnel.

Independent street-hailed transport in Tehran carries elevated risk, as security personnel have been known to operate covert checkpoints using unmarked vehicles, and pre-arranged vetted transport coordinated through a vetted ground support team is the only advisable option if movement cannot be avoided.

Active military strikes and reprisal attacks across the region, ongoing airspace closure risks, and documented arbitrary detention of foreign nationals make all ground movement in Iran extremely high-risk at this time.

City threat summary

Tehran and the surrounding region are subject to the highest-tier travel advisories issued by the United States (Level 4: Do Not Travel), the United Kingdom (Advise Against All Travel), and Australia (Do Not Travel), with UK and Swiss diplomatic staff temporarily withdrawn from Iran due to the prevailing security situation.

The city faces an active and severe threat environment encompassing terrorism, widespread civil unrest, arbitrary detention of foreign and dual nationals, and kidnapping risk, with ongoing restrictions on internet, mobile, and transportation networks reported as recently as mid-2026.

Iran's airspace has been subject to closure following large-scale military strikes and retaliatory actions in 2026, and civil aviation access to and from Tehran remains significantly disrupted.

Country overview

Iran's security environment is assessed as extremely volatile following the assassination of Supreme Leader Ali Khamenei in February 2026 and the subsequent leadership transition to his son Mojtaba Khamenei, events that have compounded an already severe geopolitical and domestic crisis.

Military strikes and reprisal activity have occurred across the broader region in recent days, with the U.S. Virtual Embassy noting as of September 1, 2026 that the potential for unforeseen escalation remains active.

All major Western governments — including the U.S. State Department, UK FCDO, Australia DFAT, and Ireland's Department of Foreign Affairs — maintain their highest-tier travel warnings advising against all travel to Iran across all 31 provinces.

Higher-risk locations nearby

• Tehran OIID CRITICAL