For Newark to Cappadocia business class, Turkish Airlines is the obvious pick for many travelers since it keeps you on one carrier group into Istanbul, with lie-flat 1-2-1 seating and DO&CO catering that's consistently rated among the better airline meal services in the sky, plus access to Turkish's sprawling Istanbul lounge before the connecting flight. United's Polaris product is a strong alternative if you want to route through Newark's home hub with familiar mileage-earning and Saks Fifth Avenue bedding on the pod seats. Lufthansa's newer Allegris suites, rolling out on select A350s, add a semi-private door and represent the most modern hard product in this lineup, though availability on any given date varies by aircraft assignment. SAS, TAP, Austrian, and LOT all route through their respective European capitals — Copenhagen, Lisbon, Vienna, Warsaw — and each makes sense depending on whether you want a stopover. Austrian is the outlier with 2-2-2 seating rather than 1-2-1, which matters if you're traveling solo and prefer aisle access without climbing over a neighbor.