sneak away vs sneak off

sneak away and sneak off both are verbs.

Word	Noun	Adjective	Verb	Adverb
sneak away	No	No	Yes	No
sneak off	No	No	Yes	No

As verbs, sneak away and sneak off are synonyms defined as:

Other synonyms of sneak away include slip away, slip out, sneak out, steal away.

sneak away (verb)	sneak off (verb)
leave furtively and stealthily	leave furtively and stealthily