For Austin to Tenerife business class, the routing determines the airline experience. Connecting through London Heathrow puts you on British Airways' Club Suite, a 1-2-1 configuration with a closing door, White Company bedding, and decent width, though BA's food and beverage service trails the competition. Routing through Frankfurt brings you Lufthansa's newer Allegris Business product on the A350 — genuine suites with doors, sharper personal space, and the kind of German operational reliability that makes tight connections less stressful. Amsterdam connections put you on KLM's World Business Class, a solid 1-2-1 lie-flat seat without a door but with strong service and the convenience of Schiphol's efficient transfer process, plus the charming Delft Blue house gift on longer sectors. If you'd rather route west before east, Delta One Suites through Atlanta or Minneapolis give you a domestic-style comfort level with a privacy door and Tumi amenity kits before you even cross the Atlantic — a good option for travelers who want to start the trip on familiar ground.