| Family | Ctenostylidae Bigot, 1882
| 1 2 | Genus Species |
| Family | Lonchaeidae Loew, 1861 Lance Flies, Lanceflies, Lonchaeid Flies | 34 854 | Genera Species |
| Family | Neottiophilidae Hendel, 1916 ⇒ Thyreophoridae Nest flies | 0 0 | Genera Species |
| Family | Otitidae Macquart, 1835 ⇒ Ulidiidae Picture-winged flies, Picture-winged fly | 115 985 | Genera Species |
| Family | Pallopteridae Loew, 1862 Flutter flies, Flutter-wing, Flutter-Wing Flies | 21 149 | Genera Species |
| Family | Piophilidae Macquart, 1835 Cheese flies, Cheese skipper, Cheese skippers, Skippers | 36 251 | Genera Species |
| Family | Platystomatidae Schiner, 1862 Picture-winged flies, Signal flies, Signal fly | 232 1874 | Genera Species |
| Family | Pyrgotidae Schiner, 1868 Light Flies, Picture-winged flies, Pyrgotid Flies | 100 588 | Genera Species |
| Family | Richardidae Snow, 1896 Richardid flies, Thyreophorid flies | 13 214 | Genera Species |
| Family | Tachiniscidae Kertesz, 1903 ⇒ Tachiniscinae
| 2 2 | Genera Species |
| Family | Tephritidae Newman, 1834 Fruit flies, Fruit Fly, Gall flies, Greater Fruit Flies | 999 11075 | Genera Species |
| Family | Thyreophoridae Doskocil, 1977 ⇒ Neottiophilidae Thyreophorid flies | 1 2 | Genus Species |
| Family | Ulidiidae Macquart, 1835 Picture-winged Flies | 78 319 | Genera Species |