At the moment, December/2019 and January/2020 are the lowest-price months to fly to Zurich. The most expensive time of year is February/2020.
SWISS, Delta and United fly non-stop between the United States of America and Zurich.
The cheapest airline that flies from the United States of America to Zurich is TAP AIR PORTUGAL.
Emirates is the best airline to fly between the United States of America and Zurich. SWISS is the best for direct flights. Eurowings is the best low-cost airline.