excursion vs outing

excursion and outing both are nouns.

Word	Noun	Adjective	Verb	Adverb
excursion	Yes	No	No	No
outing	Yes	No	No	No

As nouns, excursion and outing are synonyms defined as:

Other synonyms of excursion include expedition, jaunt, junket, pleasure trip, sashay.

excursion (noun)	outing (noun)
a journey taken for pleasure	a journey taken for pleasure
wandering from the main path of a journey	a day devoted to an outdoor social gathering