flair vs elan

flair and elan both are nouns.

Word	Noun	Adjective	Verb	Adverb
flair	Yes	No	No	No
elan	Yes	No	No	No

As nouns, flair and elan are synonyms defined as:

Other synonyms of flair include dash, panache, style.

flair (noun)	elan (noun)
distinctive and stylish elegance	enthusiastic and assured vigor and liveliness
a natural talent	distinctive and stylish elegance
a shape that spreads outward	a feeling of strong eagerness (usually in favor of a person or cause)