I noticed that Ryanair flies to Glasgow Prestwick. How far is this from the centre of glasgow, and do they provide a bus to get you there? Wondering if its worth it for the saving.
If you show your flight confirmation, and photo ID, you get rail travel at half price. The full fares are �5.85 single and �10.35, so that means that you can buy a return ticket for around a fiver: http://www.gpia.co.uk/AirportInfo/HowTo/train. asp
You get a discount on the train (can't remember how much) if you have a plane ticket. Just as easy, and no more expensive, than if you fly into Glasgow International.