Frontier re-enters Oakland (OAK) and adds Las Vegas nonstops to Boise (BOI) in late-summer 2026, taking routes vacated by Spirit
Frontier Airlines will launch two late-summer 2026 nonstop routes from Las Vegas (LAS): a return to Oakland San Francisco Bay Airport (OAK) and new service to Boise (BOI). The OAK relaunch also reflects Frontier picking up routes formerly operated by Spirit.