I can't seem to find a schedule that shows this run, found about everything else, hoping someone here can send a link or something ...

Thanks,

DS 

http://www.sawadee.co.th/thailand/transfer/train-south.html

 

Here's a link, unfortunately it's in Thai, but it seems you can get a train from NST to HY then another/change  to PB, I think, sorry couldn't be more help.

No direct train, AFAIK.

 

http://procurement.railway.co.th/checktime/checktime.asp?lenguage=Eng

 

The trains from Nakhon to Hat Yai Junction run just a couple times per day, you then need to change to a shuttle train (which also runs twice a day, I think) or a minibus to Pedang Besar. If I am not mistaken, a direct train to PB runs from Surat and leaves in the middle of the night.

 

Personally, I never bothered with trains, took a minibus to Hat Yai from Nakhon (3h) and then another one to the border.

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