The best replacement for flies is gnats.

The best alternatives to flies are rated as following:
★★★★★  gnats
★★★★★  flys
★★★  flies
★★  bees
★★  drain flies
★  flys bug
★  mosquitoes
★  bench press
★  moth flies
★  animal farm
★  fruit flies
★  flys spelling
★  macbeth
★  lost
★  time flys
★  fleas
★  termites
★  nats
★  maggots
★  spiders
★  wet flies
★  coral island
★  gnat
★  spiders game
★  floats
  wasps
  house flies
  time flies
  aphids
  fly's
  fungal gnats
  dry flies
  crossovers
  presses
  moths
  cast away
  horse flies
  sand fleas
  he flies

Your alternative for flies is not listed? Suggest!
Speaking about flies, one probably shouldn't forget about her own wings.

Other search terms related to flies and their ratings are:
★★★★★ her own wings
You have in mind a companion for flies and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of flies in all years. Click on graph for more.
flies
gnats
flys