Hello Sheltie,
Slightly delayed in joining this conversation.
Some comments, and forgive me if they’ve been mentioned already.
* can buy tickets up to 3 months in advance. Go direct to the LNER website, plus they have an App too to store tickets electronically.
* unless it’s an Open Ticket, which will cost a bomb, you’ll have to travel on a specified train, and you’ll get a reservation for a seat.
* consider buying a railcard. A Two Together Railcard costs £30, but will get 30% off BOTH your tickets. Can also use it on the Heathrow Express & Heathrow Connect. Electronic versions are available to show on your mobile.
* try and get seats on the right hand side of the train facing forwards. Better views of Durham Cathedral, Tyne bridges, Berwick on Tweed, and the coast north of Newcastle.
Kings Cross is a pleasant station these days, but don’t waste time on the Platform 9 3/4 nonsense when waiting for your train. There is through a nice pub at the very back of the concourse with a bit of a balcony.
St. Pancras, next door to KGX and a 5 min walk, is mightily impressive. Well worth a walk through for a glass of champagne on the upper concourse. It has a fabulous roof and a couple of lovely statues! Or, Coal Drops Yard at the back of KGX is good- nice bars and restaurants and a lovely stroll by the canal and the locks! Google will show any number of pics of these places.
Cheers!
Mr. H. 🍸