There is no nonstop path connecting Central Florida to the Aegean, which makes the routing decision the single most important choice you'll make when booking business class from Orlando to Mykonos. In practice, that means connecting through a European hub before catching one of the small-jet hops that Aegean Airlines runs down into JMK's compact airport, since Mykonos itself only accepts narrow-body regional aircraft. My preferred build is Lufthansa out of Orlando via Frankfurt or Munich, where the airline's Allegris business class — on routes now equipped with it — brings a proper suite-style seat with a closing door on select aircraft, a meaningful upgrade over the older long-haul product. British Airways offers a similar structure via London Heathrow, with its Club Suite delivering direct aisle access and consistent privacy across the fleet, a real advantage if Lufthansa's newer cabins aren't assigned to your specific tail number that day.
Once you're in Europe, Aegean Airlines takes over for the final leg into Mykonos, typically operating A320-family aircraft with a recliner-style business cabin — comfortable for a short intra-European hop but not the main event of your journey, so don't expect flatbeds on that segment. The insider move here is to build in a two-to-three hour buffer in Athens or your European hub before the Mykonos connection, since island-bound flights fill with seasonal leisure traffic and delays cascade quickly in high summer. Arriving into JMK, skip the terminal crowds by pre-arranging a driver through your hotel; the airport is small, but taxi queues in peak season can rival anything in a major city.
Deal-wise, April, May, September, and October consistently offer the best value and calmer connections, avoiding both winter's thin Aegean schedule and August's saturated leisure crush. Because premium award and discount fares on this multi-carrier itinerary shift often and without warning, setting up automated fare alerts is the smartest way to catch a strong Orlando to Mykonos business class fare before it disappears.