There's no nonstop path linking Logan to the Cyclades, which is precisely why routing strategy matters more on this itinerary than almost any other transatlantic booking I track. Business class from Boston to Mykonos always involves a connection, since Mykonos's small airport (JMK) only accepts narrow-body regional aircraft, and the real decision travelers face is which European gateway to route through: Athens via Aegean Airlines, London via British Airways, or Frankfurt/Munich via Lufthansa. My preferred combination pairs a Lufthansa long-haul business class from Boston into Frankfurt—where Allegris-configured aircraft are gradually appearing on select routes—with a same-day Aegean hop down to Mykonos. Aegean's short-haul business cabin is modest, essentially economy seats with a blocked middle, but the ground experience redeems it, particularly Athens's efficient business transfer process.
British Airways offers another compelling routing, especially if you can secure Club Suite on the 777 or A350 out of Heathrow, giving you direct aisle access and a proper door for the long transatlantic leg before connecting onward to Athens or directly to Mykonos during peak summer months when BA sometimes adds seasonal service. My insider tip, learned after several June trips gone wrong: avoid connecting through Athens on weekend mornings in high season, when the domestic terminal gets overwhelmed with charter traffic to the islands—an early weekday connection saves considerable stress and gives your business class fare the smooth finish it deserves.
Seasonality here is unusually pronounced. April, May, September, and October consistently deliver better award availability and fare value, since Mykonos's July-August surge pushes premium cabins toward leisure travelers booking months ahead, while shoulder-season business travelers benefit from airlines eager to fill Frankfurt, Heathrow, and Athens connections. Given how fragmented and volatile pricing on this three-airline, multi-hub route can be, I'd strongly recommend setting up fare alerts rather than manually checking—automated tracking is the only reliable way to catch the periodic dips before they disappear.
