outflight

noun3

1. •
   The act or process of flying out.

   • He did not report whether any bats remained in the roost after the outflight. — 1979
2. •
   Outward movement or exiting.

   • Inflation increases capital outflight which diminishes the availability of funds for domestic investment. — 1990
3. •
   The act or process of fleeing.