Passengers who sat near the Duke and Duchess of Sussex as they flew business class from Los Angeles to Melbourne were clueless about their famous seatmates until the pair were whisked off the plane.Prince Harry and Meghan arrived in the Victorian capital on a commercial Qantas flight at 6am and departed the airport under the cover of privacy.The former royals were so lowkey, in fact, that a few of their fellow passengers were surprised to see them disembark.EXCLUSIVE: Brutal reality