There is no direct train journey from Dublin to Glasgow. There are a wide variety of ways you can make part of the journey by train. You could get a train to Belfast and then a ferry from Larne to Stranraer, and then a train to Glasgow. You can fly from Dublin to Prestwick, and get a train from there to Glasgow. You can get a ferry from Dublin to Liverpool and travel by rail to Glasgow that way. As there are many different options, then there is no single answer to your question.
At present (June 2012) the train fares from Greenock Central to Glasgow are £5.60 single, £6.60 for an off-peak day return and £9.00 for an anytime day return. From Greenock West to Glasgow, the costs are £5.70 per single, £6.80 for an off-peak return and £9.40 for an anytime day return.
If you book in advance you can get fares for around £32 for 1 adult return. However, if booked closer to the date it would be £60+ form 1 adult return. Remember also, that railcards give substantial discounts.
The price can vary enormously depending on when you are travelling but a single ticket could be about £115 and a return not much more.
There is a train service from Glasgow Central to Kilmarnock.
Check the Irish Rail website from the link below.
There is no train from Dublin to Waterville. You could get a train to Tralee or Killarney in county Kerry, the county that Waterville is in.
Walk, run? Train to Glasgow then Oban train Bus via Glasgow
Glasgow central
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Yes. There are regular train services from Dublin to Cork all day long.
Train, bus or car. There are no flights from Glasgow to Sheffield.
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