Wiktionary
flt.
alt. (context aviation English) (abbreviation of flight English) n. (context aviation English) (abbreviation of flight English)
Usage examples of "flt.".
On our arrival in Scarborough we had a talk from our Flight Commander, Flt. Lieut.
I felt my rigid lips creak apart, and my head tilt back to aim at what I took to be Flt. Lieut.