Tehran and northern Iran near the Caspian see frequent GPS interference, with a large share of aircraft reporting degraded navigation.
Check the live reading above and open the map. FLYAWAY reads GPS accuracy from the aircraft over Tehran and refreshes every few minutes.
When the reading is high, treat GPS near Tehran as unreliable: keep the drone in sight, be ready to fly manually, and do not rely on return-to-home. When it is severe, do not fly.
Tehran and northern Iran near the Caspian see frequent GPS interference, with a large share of aircraft reporting degraded navigation.
Tehran lies inland just south of the Caspian, on the plateau below the Alborz mountains that separate the city from the sea. Though not a coastal port, its airspace connects across the Caspian basin, the region in which aircraft increasingly report degraded or spoofed satellite positioning.
Aircraft crossing the Caspian have increasingly reported lost or spoofed GPS since 2023 amid regional military activity, a pattern followed through open flight-monitoring data. Flights linking Tehran with routes over that basin operate within the affected region, so crews are advised to anticipate satellite interference on Caspian-facing legs rather than treat it as exceptional.
Iran's capital and dominant economic centre, Tehran is an aviation and industrial hub served by the Imam Khomeini and Mehrabad airports, where GNSS underpins air traffic. The volume of flights passing through and the freight they carry make dependable positioning important, so interference across the nearby Caspian basin is a concern for the city's air operations.
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