A NATO jet scramble to the Latvia-Belarus border and an overnight closure at Vilnius Airport disrupted air travel across the Baltics on the night of September 21 into September 22, 2026, even though nothing was ever confirmed intercepted or crossed. Vilnius Airport ran under a three-hour airspace restriction that affected 17 flights and roughly 3,182 passengers, after radar picked up navigation signatures typical of contraband balloons. The same night, Italy's Baltic Air Policing detachment scrambled Eurofighter Typhoon jets from Šiauliai Air Base after Latvia reported a possible airspace violation on its border with Belarus. Lithuania's Armed Forces Strategic Communications Department confirmed the scramble and said the patrol closed with no confirmed incursion.
Associative image. NATO fighter jet.
Vilnius Airport absorbed the real cost of the night
From 23:45 local time (20:45 UTC) on September 21 per LRT (Vakarų ekspresas gives 23:25), Vilnius Airport imposed a temporary airspace restriction after radar detected the kind of navigation signatures Lithuanian authorities associate with contraband balloons. The restriction lifted after almost three hours, at 02:40 local time (23:40 UTC) on September 22 - both outlets agree on the lift time. Lithuanian Airports attributed the disruption to a Belarus-run hybrid operation targeting Lithuania, civil aviation, and the public. Twelve of the 17 affected flights were diverted, four to Riga, one to Warsaw, and seven to Kaunas, three more were delayed, and two were cancelled. Lithuania has separately raised the recurring influx of meteorological balloons from Belarus with the International Civil Aviation Organization. No aircraft was struck and no object was recovered - the disruption itself, not an intercepted threat, is what the night produced.
Latvia declared and then lifted an air alert, with nothing confirmed
Late on the evening of September 21, Latvia declared an air alert covering its border area with Belarus. Lithuania's military said NATO air-defense jets from Šiauliai flew a patrol in response to possible airspace violations along that border, and that the patrol closed without any confirmed incursion. Latvia lifted its air alert a few minutes after midnight local time. Neither Lithuania's Armed Forces nor the reporting so far names the specific crossing point, aircraft type, or radar track that triggered the scramble - the jets found nothing to intercept.
The third Šiauliai scramble in eight days
Italy's Baltic Thunder III detachment, which took over the Šiauliai rotation from French and Romanian forces on July 31, 2026, has now scrambled three times against possible Belarus- or Russia-linked airspace activity within eight days:
- September 15 - NATO fighters destroyed a drone that crossed from Belarus near Pratkūnai, Kaišiadorys District.
- September 17 - Italian Eurofighters scrambled over an alleged, unconfirmed Russian jet crossing near the Kaliningrad border.
- September 22 - this incident. Jets scrambled to the Latvia-Belarus border; the patrol closed with no confirmed incursion.
Of the three, September 22 is the only one Lithuania's military describes as closing with no confirmed incursion at all - and the only one where the measurable damage was to the flight schedule, not to any intercepted object.
Wind over the Latvia-Belarus border
At 21:00 UTC on September 21, near the event window, the 3,000 m layer over the Silene border point showed wind from the NNW at 8.1 km/h. At 2,000 m the flow was NW at 10.6 km/h. This reconstruction is based on reporting by LRT, TV3, and Vakarų ekspresas, and on AirVeto's wind-model data for the approximate event window. The marker on this page sits at Silene, a border-crossing point on Latvia's frontier with Belarus, as a placeholder location only - no source discloses the specific sector where the patrol flew, and this wind reading describes conditions at that placeholder point, not necessarily the real patrol area. AirVeto will update both if a source discloses the actual sector. The live map shows current conditions over the Baltic region.
Per LSM English, four German Air Force Eurofighters are due at Latvia's Lielvārde air base at the end of September, under NATO's enhanced Air Policing North mission, to add cover for Latvian airspace through the 15th Saeima election. That deployment was announced before the September 22 scramble and stands separately from it. Both point to the same pattern Lithuania and Latvia have tracked through 2026: a rise in Belarus-linked airspace pressure met by a steadily busier Baltic Air Policing mission.
This incident sits in AirVeto's Lithuania airspace coverage. AirVeto's model and its documented limits are on the methodology page.