An airline flew at a low altitude and turned off its transponder in order to rescue a plane that was stuck in Ukraine, according to data.

Wizz Air returned one of the four planes that have been stranded in the country.

The data shows that the A320 flew from western Ukraine to Poland. After appearing to switch off its tracking system, the jet reappeared on radar as it entered Polish airspace.

—Flightradar24 (@flightradar24) September 15, 2022

Ukraine's airspace has largely been closed to passenger jets since Russia's invasion, leaving four Wizz Air jets stranded for almost seven months.

The jet may have been helped by flying at a low altitude.

Wizz Air confirmed to Insider that it had one aircraft based in Lviv that left from Danylo Halytskyi International Airport and landed in Katowice.

The rescue mission is the first step in the plan to rescue the jets. The airline didn't comment on the plans to free the planes.

Several airlines and leasing companies have their jets stuck in Russia andUkraine.

The airline would like to resume flights to both Ukrainian and Russian cities. 100,000 free tickets were given to Ukrainians in other countries.

The airline told Gulf News last month that it would return to Russia with an Abu Dhabi to Moscow route.