There's no nonstop way to get from Savannah to Corfu, which means the real question isn't whether to connect, but where — and after years of routing clients through this corner of the Mediterranean, I've come to believe the answer depends entirely on which European carrier's business class you prefer to spend the bulk of your journey in. Booking business class from Savannah to Corfu essentially means piecing together a domestic or transatlantic segment out of SAV with a European partner that actually flies into CFU's compact, seasonal airport — and that means Lufthansa via Frankfurt or Munich, British Airways via London Heathrow, or Aegean Airlines via Athens. Total travel time typically runs close to 11.5 hours in the air alone, not counting layovers, so choosing the right connection matters as much as the seat itself.
My preference, and the one I recommend most often, is routing through Athens on Aegean after a transatlantic hop with a Star Alliance or oneworld partner, since Aegean's short Athens–Corfu business class hop is quick, civilized, and lands you close to the old town without the congestion of larger European gateways. If you're flying Lufthansa, Frankfurt's connections to CFU are seasonal, so double-check summer schedules before committing to that routing. British Airways passengers should aim to fly the Club Suite-equipped 777 or A350 out of Heathrow when possible — it's a meaningfully better product than the older Club World cabins still flying some transatlantic routes, with direct aisle access and a proper door. One insider tip: Corfu's airport gets serious weekend charter congestion in July and August, so arriving on a weekday, even with a longer layover, saves real aggravation on arrival.
April, May, September, and October remain the sweet spot for this itinerary, both for weather and for business class availability, since airlines loosen premium inventory once peak summer charter traffic subsides. Given how fragmented this routing is, fare and award space fluctuate constantly across three carriers and multiple hubs — which is exactly why I'd set up fare alerts rather than checking manually, so you catch the right premium seat the moment it opens up.