THE Caledonian Airways subsidiary Golden Lion Travel (0293 668206) is running a programme of day trips this spring. A Valentine's Day trip on 14 February to Paris from Glasgow or to Vienna from Gatwick costs pounds 99. A 17 March St Patrick's Day trip to Dublin from Gatwick costs pounds 75. A Mothering Sunday outing on 21 March to Edinburgh from Gatwick costs pounds 85. On 25 April, a day trip to Amsterdam, including a tour of the bulb fields and entrance to the Keukenhof Gardens, costs pounds 79.