9 ways to repel deer flies and horse flies

BANGOR DAILY NEWS • July 2, 2026

Deer flies and horse flies can ruin an outdoor experience. They swarm and buzz around your ears. Their bites are nearly as painful as bee stings, and they’re relentless. But there are a few things you can do:
• Chemical repellents such as DEET “can provide several hours of protection.”
• The flies are attracted to movement. Remain still.
• You can’t run faster than these pests can fly, but you may be able to outdistance them.
• The flies are attracted to dark colors, specifically blue; they don’t appear to be as attracted to light colors or white.
• You may find more of these flies near water.
• Cover up with plenty of clothing; the first thing to cover is your head.
• A hat with an adhesive surface is one of the best ways to put the flies out of commission.
• The strong, soapy scent of dryer sheets might ward them off.
• Walk beside someone who is taller than you; the flies may be more attracted to your companion.