see as the crow flies; drop like flies; no flies on someone; time flies. Also see under fly.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
How to use flies in a sentence
In our digital world falsehood flies first class via hyperlinks, Tweets, texts, and The View.
And a third is that we all paused a second to look at the red glow over Baltimore, 35 miles away as the crow flies.The Stacks: H.L. Mencken on the 1904 Baltimore Fire | H.L. Mencken | October 4, 2014 | THE DAILY BEAST
As tradition dictates, the Royal Standard flies there only when the sovereign is in residence.
Buzzards are all flying around pecking at them, and there are insects and flies, and you can see blood on the ground.Aporkalypse Now: Pig-Killing Virus Could Mean the End of Bacon | Carrie Arnold | August 20, 2014 | THE DAILY BEAST
The aircraft stops once to clear South African customs, then flies on to Botswana.
A germ flies from a stagnant pool, and the laughing child, its mother's darling, dies dreadfully of diphtheria.God and my Neighbour | Robert Blatchford
They must be kept away from flies—a fly can work havoc with a film in a few minutes.A Manual of Clinical Diagnosis | James Campbell Todd
I went into the dugout indescribably slack; hardly energy to struggle against the heat and the myriads of flies.
The destroyers and picket boats were round her as smart as flies settle on a lump of sugar, and there was no loss of life.
No escape from the steadily rising flood of letters and files,—none from the swarms of filthy flies.