Cheap Bus and Train tickets to Amsterdam, US

What are the most popular routes to Amsterdam?

New York City - AmsterdamAverage priceCLP 80,053Average duration3h 37mDaily departures3
Washington - AmsterdamAverage priceCLP 82,360Average duration14h 30mDaily departures6
Buffalo - AmsterdamAverage priceCLP 51,136Average duration9h 1mDaily departures5
Albany - AmsterdamAverage priceCLP 19,297Average duration42mDaily departures3
Syracuse - AmsterdamAverage priceCLP 35,350Average duration1h 59mDaily departures4