Vilnius International Airport (IATA: VNO, ICAO: EYVI) suspended operations from 22:30 on 9 April 2026 to 05:15 on 10 April 2026 local time, a stretch of close to seven hours, after objects consistent with smuggling balloons entered civil aviation flight zones on the Lithuanian-Belarusian border. The overnight restriction was extended into the early morning before flights resumed, with night flights delayed, diverted, or cancelled for security reasons. AirVeto's reconstruction of the ICON 700 hPa wind field at 22:00 UTC on 9 April 2026 shows easterly flow at 30β45 km/h across the Lithuanian-Belarusian border β the direction and speed consistent with drift from Belarusian territory toward the Vilnius approach corridor during the closure window.
The airport sits roughly 30 km west of the Belarusian border. For context, this was the fifth Vilnius closure of 2026 attributed to balloons carrying contraband cigarettes launched from Belarusian territory β the first four occurred in January, February, and March, and Lithuanian authorities had intercepted at least 45 balloons in the first quarter of 2026 alone.
Illustrative file photo. This image is not from the incident described β it shows a contraband-type balloon of the kind that has forced airspace closures at Vilnius Airport.
What AirVeto showed during the closure window
At 3 km across the Lithuanian-Belarusian border, AirVeto’s view at the relevant window was reading easterly flow (grid centre 87Β°, range 73Β°β101Β°) at 30β45 km/h — the direction that drifts anything aloft on the Belarusian side onto the Vilnius approach. At 500 m, the altitude most relevant for low-floating balloons, the direction held but the speed dropped to 8–12 kt: a 2–3 hour drift time across the 30 km border-to-airport distance, consistent with objects entering the approach airspace through the overnight window.
Multiple border segments on the Lithuanian-Belarusian frontier sat orange across the window. Orange is the inflow-alert state: wind crossing into the EU within 85Β° of the border-normal — the geometric condition under which an object released on the upwind side is physically able to cross. When Vilnius shut, AirVeto’s view said exactly why.
This was one of several balloon disruptions on the Vilnius Airport approach in 2026 — see the 28 January incursion upstream of the same frontier and the 13 May Kaunas Ε anΔiai recovery further inland. The model behind the wind layer is documented on the methodology page; the full archive is at /incidents. The Lithuanian smuggling-balloon category page is Kontrabandos balionai.