The Flight Regiment 19 (Swedish: Flygflottilj 19, Finnish: Lentorykmentti 19 or LentoR 19), also known as the Swedish Voluntary Air Force or F 19 was a Finnish Air Force unit, manned by Swedish volunteers, which operated from Kemi in northern Finland for the last 62 days of the Winter War.

Its designation number was taken from the Swedish Air Force which had 18 flying regiments at the time.

The unit made a significant contribution to the defense of Finnish Lapland, from January 7, 1940, with 12 Gloster Gladiator II fighters,[1] five Hawker Hart bombers, and eight other planes.

The captives were returned to Sweden five months after the end of the war.

[2][3] The F 19 unit destroyed 12 enemy aircraft, and lost three Hawker Harts and three Gloster Gladiators due to various incidents, however, only one of these, a Gladiator, was lost in an air battle.