Lufthansa operated 11,700 flights in the Lithuanian airspace in January through June, up by 0.5 percent year-on-year. That accounted for 11 percent of all flights.
Latvia's Airbaltic was in second place with 9,800 flights, down by 9 percent, and a 10-percent market share.
Further down the list were Russia's Aeroflot with 6,800 flights, up by 6.3 percent, and Finnair with 6,700, down by 24.3 percent. The two airlines held 7 percent of the market each.
Ireland's budget airline Ryanair held a 5-percent market share with 4,800 flights, down by 7 percent.
France's Flying Cargo Private, the Czech Republic's Transaero Airlines, Belarus' Belavia, Norway's Air Shuttle and Hungary's Wizzair this year increased the number of flights operated in Lithuania's airspace.