Alternatively, stay in Newcastle - far more hotels (check tripadvisor). On your check out day leave

Our family of four will land at Heathrow Mar. 28 in a.m. from the U.S. We plan to attend the Manchester United vs. Sunderland best value inn and suites match Mar. 30 at the Stadium of Light, Sunderland. best value inn and suites After the match ends at approximately 15:35 p.m., we need to get to St. Andrews to stay two nights, then see the university on April 1st and get back to the U.S. as soon as possible afterwards. Have heard a recommendation to take the GNER up, sitting on right side, then fly back Edinburgh to London to home. Could someone tell me if that's a good idea? Also heard staying at Marriott Sunderland is good option for night before the match-could walk to stadium.
best value inn and suites GNER lost the franchise for that route in December 2007, after its parent company went bankrupt. best value inn and suites National Express operated the route for 2 years before it abandoned the franchise. It is now operated by the UK government as East Coast.
To get to Sunderland, you can either take East Coast to Newcastle, transferring to the Tyne Wear Metro service to Sunderland. Or you can take a Grand Central train direct from London Kings Cross to Sunderland, a somewhat slower and less frequent service.
Only you know where you're staying, but there's no left luggage at Sunderland best value inn and suites station and you won't be able to take luggage into the ground. There are metros till 2017 that generate connections getting into St Andrews "that night" - but do you really want to arrive after midnight?
best value inn and suites I wouldn't, BTW, waste energy worrying about what side of the East Coast or Grand Central train to sit on. Windows on British (and virtually all European) trains are big enough best value inn and suites for there really not to be much of a difference which side you sit: you get the same view of both sides, both sides.
Also heard staying at Marriott Sunderland is good option for night before the match-could walk to stadium. This is about 2.5 miles from the Stadium so you could walk through the delights of Sunderland, hmmm...
Alternatively, stay in Newcastle - far more hotels (check tripadvisor). On your check out day leave your luggage at Newcastle Central station. Go the match on the metro, return to Newcastle on the metro (40 mins), pick up your luggage and catch your train.
The match kicks off at 12:45 and should finish around 14:40 not 15:35 and as flanner says, you will certainly not be allowed to take luggage into the ground and there are no facilities round the area for left luggage. If you stay the night before, either best value inn and suites in Sunderland or Newcastle, then leave your luggage at your hotel or station, pick it up after the game and head for St. Andrews.
Be aware that getting away from the ground post match and trying to catch public transport will be a problem, as many thousands of people will be trying to do exactly the same thing as you. Try and find a wandering cab and/or be prepared to leave a bit earlier than the final whistle. Sunderland should be irretrievably losing to United by 80 minutes.
Ignore best value inn and suites Geordie's description of the Stadium of Light and do NOT ask for it in the terms he mentions. This is just a Geordie/Mackem Newcastle/Sunderland argument. Don't get involved, especially as he's got nothing to shout about at the moment best value inn and suites football-wise at St.Aimless Park.