According to LRT and 15min, Vilnius International Airport imposed partial airspace restrictions at 01:18 EEST (22:18 UTC on 7 June 2026) after navigation markers characteristic of contraband balloons were detected in aviation danger zones on the airport's approach corridors. Restrictions lifted at 04:00 EEST (01:00 UTC on 8 June 2026), ending a 2-hour 42-minute closure that disrupted five flights — four aircraft diverted, two of them to Kaunas International Airport, one flight cancelled — and approximately 453 passengers. Vilnius Airport's official statement, issued at 04:02 EEST, characterised the detection as "the hybrid attack carried out by Belarus against Lithuania, civil aviation and the public, by recording navigational markings characteristic of balloons in risky aviation areas." AirVeto's wind reconstruction at 700 hPa covers the Vilnius approach corridor during this overnight window. Lithuania balloon page · methodology
Illustrative file photo. This image is not from the incident described — it shows a contraband-type balloon of the kind deployed along the Belarusian frontier.
01:18 to 04:00 EEST — a 2h 42min pre-dawn closure
The 01:18 EEST restriction places this closure in the recurring pre-dawn slot for Belarusian balloon crossings into Lithuania. Contraband balloons are typically launched from the Grodno region — approximately 80–100 km east of Vilnius — in the late-evening hours, drifting into Lithuanian airspace before dawn when ground crews can recover cargo without daylight exposure. At 01:18 EEST, Oro navigacija (Lithuania's air navigation service provider) imposed partial restrictions on the Vilnius Airport approach corridor; the airport published a public update at 04:02 EEST confirming restrictions had been cancelled and operations had resumed two minutes earlier. The airport advised that individual flight delays were expected through the morning of 8 June as crew rotations and aircraft positioning recovered.
Four aircraft diverted, two of them to Kaunas
Of the five affected flights, four aircraft were diverted to alternate airports; two of them landed at Kaunas International Airport, 99 km southwest of Vilnius. Kaunas has served as the primary Lithuanian alternate for Vilnius-bound traffic throughout the balloon-closure series. One scheduled flight was cancelled outright, bringing the total to five disrupted movements and approximately 453 affected passengers. Vilnius Airport advised disrupted passengers to contact their airlines directly regarding rebooking; under EU Regulation 261/2004, balloon-induced airport closures have been classified as extraordinary circumstances beyond airline control, which limits compensation entitlement.
Lithuania's ANSP closed the approach corridor after detecting balloon navigation signals
The restriction was triggered by navigation signals — not a confirmed visual intercept or radar track of a balloon in flight. Oro navigacija's operational threshold for imposing partial restrictions requires only that balloon-type navigational markers appear within defined aviation danger zones; the absence of a confirmed visual contact is consistent with the standard detection pattern across the entire 2026 closure series. Vilnius Airport's official statement used the phrase "hybrid attack carried out by Belarus against Lithuania, civil aviation and the public" — the framing Lithuanian authorities have applied consistently to all balloon-induced airspace incursions since the campaign intensified in late 2024, and one Lithuania has submitted as evidence to the International Civil Aviation Organisation.
Wind layer — 700 hPa over Vilnius on the night of 7–8 June 2026
AirVeto's reconstruction covers the 700 hPa pressure level (approximately 3,000 m) over the Vilnius approach corridor during the 22:18–01:00 UTC event window. For balloon events, the 700 hPa wind field is the release-point inference layer — the prevailing wind direction at altitude determines the ground track a balloon follows from its launch point in Belarus toward the approach corridor. Full methodology is on the AirVeto methodology page.