Only 69% Full: Finnair’s 10 Emptiest US Routes Revealed [Full List & Map]

Finnair is one of around 40 scheduled airlines flying between Europe and the US. Between March 2025 and February 2026, the country’s Department of Transportation (DOT) shows that Finnair carried 479,500 round-trip passengers. Traffic grew by 15% compared to the prior 12 months, which was driven by increased frequencies on various existingroutes.