The word overflights is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 23
Highest Scoring Words With Friends™ Plays In The Letters overflights
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Seven Letter Word Alert: (53 words)
elogist, estriol, fighter, filters, flights, florets, florist, foister, forgets, forgive, forties, freight, frights, froglet, glister, glories, glovers, goiters, goitres, golfers, goriest, gristle, grovels, grovets, hogties, holiest, holster, hostile, hostler, lifters, lighter, loftier, loiters, ogreish, overlit, oversit, reflogs, relight, reshift, resight, revolts, shifter, shrivel, sighter, sleight, slither, stifler, thrives, toilers, trefoil, trifles, vertigo, violets