flair / flare are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
flair: (noun) a natural talent.
flare: (noun) a shape that spreads outward. (noun) a sudden burst of flame. (noun) a burst of light used to communicate or illuminate. (noun) reddening of the skin spreading outward from a focus of infection or irritation. (noun) a sudden recurrence or worsening of symptoms. (noun) am unwanted reflection in an optical system (or the fogging of an image that is caused by such a reflection). (noun) a sudden outburst of emotion. (noun) a device that produces a bright light for warning or illumination or identification. (noun) (baseball) a fly ball hit a short distance into the outfield. (verb) burn brightly. (verb) shine with a sudden light.
flair: f·l·EH·r
flare: f·l·EH·r
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)