Reno's small, ski-town airport isn't built for transatlantic ambitions, which is precisely why the routing strategy matters more than the marketing copy on any given fare sale. There's no nonstop option here, so business class from Reno to Salzburg necessarily means a connection—typically through Salt Lake City or San Francisco on Delta, or Chicago/Denver on United, before crossing the Atlantic via a major European gateway. Austrian Airlines, the natural endpoint carrier given Salzburg's proximity to Vienna, operates its Boeing 767 and 777 business class with fully lie-flat seats on the transatlantic legs into VIE, from which Salzburg is a short hop or a genuinely pleasant three-hour train ride through the Austrian countryside. Delta's transatlantic joint venture partners (Air France, KLM, Virgin Atlantic) sometimes offer better positioning depending on which hub you clear customs through, while United typically routes through Frankfurt or Munich on Lufthansa metal, putting you into Salzburg via a quick regional connection instead.
Having threaded this itinerary more times than I can count, my advice is to build in at least a 90-minute buffer in Vienna or Munich, since Salzburg-bound connections often depart from remote gates requiring a bus transfer—rushing this after an eight-hour red-eye is nobody's idea of relaxation. One insider trick: flying into Munich rather than Vienna, then taking the direct Deutsche Bahn or ÖBB train to Salzburg, often proves faster door-to-door than a tight regional flight connection, and it lets you stretch your legs after the long haul while watching the Bavarian Alps roll by.
Winter and shoulder-season months—January through March, then October and November—consistently offer the softest fares on this corridor, largely because leisure demand collapses outside ski season and Salzburg's festival crowds. Given the multiple viable routings and carriers involved, setting up fare alerts across Delta, United, and Austrian is the smartest way to catch the inevitable pricing dips before they vanish.