How can i return a pair of air pods i found, perfect condition, to theor rightful owner

You don't

Apple will not give you any information on the owner for safety and security reasons

Turn them into the lost and found of wherever you found them or the police

Trmarchegiano Said:

"Thanks: i figured as much. Found at a highway rest stop parking lot, not a soul in sight."

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So, hand it in to the authorities there.