At airports all the Spoons charge higher prices.
Indeed. I have recently used both the airside 'spoons at Glasgow and Edinburgh airports. Prices are the same at both.
The drinks are reasonably priced (not Wetherspoons typical prices, but still cheaper than many pubs on the high street): £3.55 for a pint of Doom Bar (CAMRA vouchers accepted).
Food is pricey. The burgers (typically £4.59 with soft drink or £5.59 with alcoholic drink, outside Central London) were only available as "gourmet upgrades" (typically £6.59 or £7.59) but priced at £10 to £11.50
without the drink and without the onion rings. Add on £3.55 for a pint and you're looking at minimum £5.96 more for less food. Also meals like chilli con carne are around £11.50 (again, slightly different meal contents to the standard high street chilli and rice option). No steak on offer, presumably because steak knives are not permitted airside. No daily "clubs" (steak, curry, chicken, mexican, fish).
I visited both airports on a Wednesday evening two weeks apart. In Glasgow, we were the only customers in the pub and speeded through security in less than 30 seconds. At Edinburgh, the pub was almost completely full and security was painfully slow. Service in Glasgow was much better than in Edinburgh.
The 'spoons at Gatwick south terminal is considerably worse. £4.90 for a pint!
Edinburgh 'spoons is always packed when I pass through, but from what I can tell it's the best place to be in the overcrowded terminal other than the
BA» lounge!
Regarding Wetherspoons at railway stations, a new one is due to open at the top of the ramp outside Edinburgh Waverley (it might already be open).