There is no nonstop path connecting Palm Beach International to Bosnia's capital, which is precisely why routing strategy matters more than usual when booking business class from West Palm Beach to Sarajevo. This journey requires a transatlantic connection, and the two smartest options funnel through Istanbul via Turkish Airlines or through Frankfurt/Munich via Lufthansa, with Delta serving as a strong domestic-to-international handoff partner on the US side. Since no single carrier operates the full itinerary, the real craft lies in stitching together the right partners and connection windows, and having flown this corridor several times, I can say the Istanbul routing via Turkish tends to offer the most reliable widebody hard product on the long-haul segment.
Delta typically handles the PBI-to-JFK or PBI-to-Atlanta domestic leg in its Delta One suites, sliding travelers into a proper lie-flat experience well before the transatlantic crossing even begins — a small luxury that makes the eventual overnight flight far less taxing. From there, Turkish Airlines' business class, with its signature wide seats and renowned onboard chef service, carries you into Istanbul, where the connection to Sarajevo is a manageable regional hop, often on a narrowbody with recliner-style business seating rather than lie-flat, so timing your layover to rest in Turkish's Istanbul lounge is worthwhile rather than rushing straight to the gate. Lufthansa's Frankfurt or Munich routing is the alternative worth watching, particularly when Allegris-equipped aircraft appear on the transatlantic leg, though availability on this specific configuration remains inconsistent, so it pays to check aircraft type at booking.
One insider tip: Sarajevo's inbound flights from Istanbul frequently see lighter loads on Tuesday and Wednesday departures, improving upgrade and award availability compared to weekend travel. Given the complexity of connections and the fluctuation in fares, especially during the favorable January-through-March and October-November windows when European carriers discount transatlantic business inventory, setting up automated fare alerts is the smartest way to catch premium pricing before it disappears.
