This is the 5977th most frequent Turkish word.
uçakta
"Uçakta" means "on the plane" in English.
In this sentence, 'uçakta' means 'on the plane', where the suffix '-ta' implies the locational expression of 'on'.
Uçakta rahat bir koltuk seçmek çok önemli.
Choosing a comfortable seat on the plane is very important.
Here, 'uçakta' similarly indicates the location of the action, being 'on the plane'.
Kardeşim uçakta kitap okuyor.
My sibling is reading a book on the plane.
The word 'uçakta' once again specifies the situation or location where the service is happening, 'on the plane'.