For 2024 Pilgrims: €50,- donation = 1 year with no ads on the forum + 90% off any 2024 Guide. More here. (Discount code sent to you by Private Message after your donation)
It's possible (probable) that the train schedule for May is not yet available.
And according to Rome2Rio.com, the bus will be faster.
https://www.alsa.com/en/web/bus/home
Have used both carriers on different caminos...both worked well. Suggest that shortly before you go you look online to see which has the better deal 'at the moment'.
This site is run by Ivar at in Santiago de Compostela.
This site participates in the Amazon Affiliate program, designed to provide a means for Ivar to earn fees by linking to Amazon