Hi, You can see regular fares, routes and schedules on Hyperdia. http://www.hyperdia.com The cheapest fast way is the adult unreserved ticket. Regular fares for your routes are:
Narita to Yamagata Stn: ¥13,430 Yamagata Stn to Nagano Stn: ¥15,310 Nagano Stn to Narita: ¥10,660
Total: ¥39400
However, the JR East Nagano Niigata Area Pass is good for 5 travel days within 14 - and the length of your trip exceeds 14 days. If you are unwilling to shorten your trip down to 14 days, then you can use the pass up to Nagano, then when you return, pay the regular fare the rest of the way (3 hrs, ¥10660). Please note that seat reservations are required for the Narita Express train.
Comments
You can see regular fares, routes and schedules on Hyperdia.
http://www.hyperdia.com
The cheapest fast way is the adult unreserved ticket. Regular fares for your routes are:
Narita to Yamagata Stn: ¥13,430
Yamagata Stn to Nagano Stn: ¥15,310
Nagano Stn to Narita: ¥10,660
Total: ¥39400
However, the JR East Nagano Niigata Area Pass is good for 5 travel days within 14 - and the length of your trip exceeds 14 days.
If you are unwilling to shorten your trip down to 14 days, then you can use the pass up to Nagano, then when you return, pay the regular fare the rest of the way (3 hrs, ¥10660).
Please note that seat reservations are required for the Narita Express train.