Now, that seems well cheap. What days / time of the day are you travelling? Do you have to overnight somewhere in Blackpool?
Feb 3rd
1N51 0641 Durham - Newcastle 07:00 Northern £1.20
9S07 07:18 Newcastle - Edinburgh 09:01 TPE £4.20
9M54 10:52 Edinburgh - Preston 13:15 Avanti
1N64 13:27 Preston - Blackpool North 13:50 Northern £10.00
Feb 4th
1B28 12:19 Blackpool North - Leeds 14:27 Northern £4.30
9E18 19:52 Leeds - Durham 21:07 TPE £5.30
B&B overnight in Blackpool for £20
I have to admit this worries me a bit though...
