At 21:46 local EET (19:46 UTC) on Sunday, 15 March 2026, Vilnius International Airport (EYVI) suspended operations after radar detected navigational marker signatures consistent with weather balloons carrying contraband cigarettes entering approach airspace from the Belarusian direction. Restrictions remained in effect until 23:35 local EET (21:35 UTC), a window of approximately 110 minutes. Operations resumed without incident. No injuries were reported.
This was the third balloon-related closure of Vilnius Airport in 2026, following the 28 January 2026 cluster and the 17 February 2026 closure during which Finnair cancelled its evening services. The March 15 event came at a point when Lithuanian authorities had publicly described the balloon launches as a hybrid threat coordinated by the Belarusian government.
Illustrative file photo. This image is not from the incident described. It shows a contraband-type balloon of the kind that has forced airspace closures at Vilnius Airport.
How the radar detection worked
Lithuanian air traffic control detected signatures in the approach airspace that were consistent with meteoprobe-type balloons used to carry contraband cigarettes. These objects appear on radar as navigational markers: they reflect primary radar returns at altitudes between approximately 1,500 m and 4,000 m, with drift velocities consistent with free-floating balloon payloads rather than powered aircraft. On detection, Vilnius Airport issued a suspension order under its standing protocol for airspace restriction during balloon-threat events. The restriction covered the full operational airspace for Vilnius International rather than a partial sector, as the track and number of objects could not be immediately verified.
What AirVeto's wind layer shows for the event window
The wind layer on the map displays the 700 hPa (approximately 3,000 m) wind field over the Lithuanian-Belarusian border during the 19:46β21:35 UTC window on 15 March 2026. At this pressure level, flow from the east, within AirVeto's 85-degree border-normal threshold, creates the inflow condition under which objects released on the Belarusian side physically drift toward Vilnius. The airport sits roughly 30 km west of the border. The Open-Meteo historical model behind the wind layer is described on the methodology page.
Part of the March 2026 escalation
The March 15 closure was the third event in a series that concentrated in the first quarter of 2026. It was followed seven days later by a 22β23 March overnight closure that preceded the VarΔna district drone crash on 23 March 2026 by just hours. The coincidence of balloon activity and a stray Ukrainian drone crash in the same 24-hour period illustrated how simultaneously the Danube and Baltic frontiers were under airspace pressure in late March 2026.
By 28 April, Lithuanian authorities confirmed that Vilnius Airport had been closed or restricted by balloon activity five times in 2026. The most operationally disruptive of those closures came on 9β10 April 2026, when the airport suspended operations for close to seven hours. The full closure record and wind reconstructions for every documented event are on the Vilnius Airport location hub.
Methodology: see /about/methodology. AirVeto is not for aviation, navigation, or safety-critical decisions. Page published 2026-06-04 by AirVeto.