On points, Austin–New York has nonstop seats from Delta (SkyTeam) and American Airlines (oneworld), which puts partner programs from both alliances in play for a nonstop. If you're open to a stop, the better-priced connecting awards in the data run through Fort Lauderdale, Dallas/Fort Worth, and Chicago. The first-class floor is a oneworld partner award: Alaska Atmos Rewards prices the American Airlines nonstop. Only four airlines show award space here, but five programs sell their seats, so the program matters more than the carrier.