Granada draws travelers for the Alhambra, the Albaicín's narrow whitewashed streets, and a slower pace than Madrid or Barcelona — plus easy access to skiing in the Sierra Nevada and beaches on the Costa Tropical within an hour's drive. It rewards travelers who arrive rested, which matters more on this routing than most, since you're stacking a domestic-length repositioning flight onto a transatlantic overnight leg. Four airlines offer strong Austin to Granada business class options, each with a different connection strategy. British Airways routes through Heathrow in its Club Suite, a 1-2-1 configuration with a closing door, White Company bedding, and reliable evening departures that let you sleep through the Atlantic crossing before a short hop to Spain. Lufthansa connects via Frankfurt in its newer Allegris Business suites on the A350 — genuinely one of the best hard products flying today, with German-precision service and consistent on-time performance through FRA. KLM funnels through Amsterdam with lie-flat 1-2-1 seating and the charming Delft Blue houses served with drinks, plus one of Europe's most efficient connecting hubs for onward flights into Spain. Delta offers the most convenient US-side option, connecting through Atlanta or Minneapolis in the Delta One Suite with a closing door and Tumi amenity kits, which appeals to travelers who prefer to clear the long haul on a US carrier before a shorter European connection.