If you are flexible with your travel dates, always consider that you can buy extremely cheap train tickets if you avoid travelling in the weekends and if you choose to travel during the low season.
Since the journey between Yokohama and Shinjuku is relatively short, you can consider carpooling or bus as alternative ways of transport with cheapest prices and similar duration.
Which stations do the trains to Shinjuku leave from?
Trains leave Yokohama from YOKOHAMA and arrive at SHINJUKU-NISHIGUCHI, SHINJUKU(JR), SHINJUKU-SANCHOME or SHINJUKU-GYOEMMAE.
How long to you need to get to Shinjuku by train?
The average duration of the journey is 45 minutes, but the fastest connections take you to Shinjuku in 35 minutes. The first train leaves from Yokohama at 12:04, while the last one leaves at 15:04.