sneak off vs sneak away

sneak off and sneak away both are verbs.

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

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

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

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