The 38-year-old actor, who will next be seen in Hitman: Agent 47, was seen earlier in the day grabbing lunch with a friend.
Zachary and Miles, 25, both took to their Instagram accounts during the flight to post some cute photos of each other in their luxury seats.
“My co-captain @zacharyquinto is more than capable to fly,” Miles captioned his picture while Zachary wrote, “my captain is ready for take-off.”
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