A Russian Ilyushin Il-20 reconnaissance aircraft crossed into Finnish airspace south of Utö island in the western Gulf of Finland on the afternoon of 20 August 2026, penetrating approximately 4.7 nautical miles (8.7 km) into Finnish territory and remaining there for about three minutes, according to Yle News, Militarnyi, and AeroTime. Finnish Defence Minister Antti Häkkänen said "every suspected territorial violation is taken seriously. An investigation is underway."
The Finnish Border Guard opened a preliminary investigation, and Finland's Ministry for Foreign Affairs summoned Russia's ambassador to demand an explanation, per The Moscow Times and Kyiv Independent.
No aircraft type was confirmed until the Border Guard identified it as an Il-20
Officials did not immediately disclose the aircraft type, flight path, or duration when the incident was first reported, per Kyiv Independent. The Finnish Border Guard's investigation subsequently identified the aircraft as an Il-20, NATO reporting name Coot-A - Russia's electronic intelligence (ELINT) aircraft, built on the Il-18 turboprop airframe, per Yle News and Militarnyi.
The second suspected Finnish airspace violation in recent months
Militarnyi characterized the 20 August incident as the second Russian airspace violation in Finland in recent months. The prior case came on 27 May 2026, when a Russian military aircraft was suspected of entering Finnish airspace over the Gulf of Finland near Porkkala, Kirkkonummi, reportedly after deviating from its route to avoid a thunderstorm, per Yle. Finland had summoned Russia's chargé d'affaires in 2025 over an earlier suspected violation, per Kyiv Independent - placing the August incident inside a documented, recurring pattern rather than an isolated event.
Wind conditions over the western Gulf of Finland
At 11:00 UTC on 20 August, inside the reported window of the crossing, the 3,000 m layer over the western Gulf of Finland south of Utö showed WNW wind at 10.3 km/h. This reconstruction is based on reporting by Yle News, Kyiv Independent, AeroTime, Militarnyi, and The Moscow Times, and on AirVeto's wind-model data for the 11:00-15:00 UTC window on 20 August 2026. No source reported the Il-20's flight path or heading, so this reconstruction cannot establish which direction the aircraft was travelling relative to the wind - only the conditions in the airspace at the time. AirVeto's model and its documented limits are on the methodology page.