A selection of fares but not brilliant, no cheap Megabus on offer with relevant times anymore, so other transport options may be best here, we're do our best but you will have to get up early in the morning to take advantage and book on two websites to get the best offers!
Chris Hawkridge on http://footballgroundguide.com suggests; 'supporters travelling via Leeds should catch the Leeds - Bradford Forster Square service (two trains per hour during the day) rather than those to Bradford Interchange. Forster Square is only 10 minutes walk from the ground'.
For the services and fares, go here:
www.eastcoast.co.uk but this site will not let you book a cheap fare back, so go on to www.londonmidland.com for the return trip!
From Southend all services on www.eastcoast.co.uk but 2 x £30.90 now = £61.80, not recommended!
Examples (as of 29/01/12 - all change at Leeds)
Friday, August 27th(book on www.eastcoast.co.uk only)
London King's Cross 06.30 - Bradford Forster Square 09.31 - £10.90
London King's Cross 10.35 - Bradford Forster Square 18.31 - £27.75
Saturday, August 28th (book on www.londonmidland.co.uk only)
Bradford Forster Square 18.34 - London King's Cross 21.29 - £12.00
Bradford Forster Square 19.34 - London King's Cross 22.51 - £12.00
If going by train into Bradford Interchange, tha main station, it is quite a walk to the ground (20 minutes). Either take a taxi (£3.50) or alternatively the bus station is located next to the train station (Bus No's 622, 623, 626 or 662).
Maps
Station: top of bottom left, the blue blob; Stadium; middle of top left, Valley Parade.
(Thanks to http://footballgroundguide.com for stadium directions.)