| Flachsfliege | Nominativ, Singular | nominative case, singular | |
| Flachsfliege | Genitiv, Singular | genitive case, singular | |
| Flachsfliege | Dativ, Singular | dative case, singular | |
| Flachsfliege | Akkusativ, Singular | accusative case, singular | |
| Flachsfliegen | Nominativ, Plural | nominative case, plural | |
| Flachsfliegen | Genitiv, Plural | genitive case, plural | |
| Flachsfliegen | Dativ, Plural | dative case, plural | |
| Flachsfliegen | Akkusativ, Plural | accusative case, plural |