In Reply to: Re: Is there any connection betwen Castlebar and Belfast ? posted by Daniel on February 18, 2005 at 18:22:04:

By train Belfast to Dublin something like 30 to 40 euro and Dublin to Castlebar approx 37 euro. It does depend on the day of the week that you travel. It's more expensive at the weekend. If at all possible travel Tuesday to Thursday - you will get a better deal.

Buses can be quite a bit cheaper.