Around 40,000 fans are expected to be travelling down from the North East to Wembley.
British Transport Police (BTP) chiefs have now issued a warning to those making their way south on trains that services will have a no alcohol policy.
All East Coast services from Newcastle to Kings Cross on Saturday and trains departing on Sunday between 7.30am and 8.55am will be ‘dry trains’, meaning no alcohol can be bought, carried or drank on board.
Alcohol will also be banned on the firm’s trains leaving from London between 5.12pm and 9.45pm.
All Grand Central trains heading north after the game will be ‘dry’.
Supporters are also being reminded that there is a strict no alcohol policy on the London Underground at all times.
Chief Inspector Derek O’Mara: “Trains to and from London from the North East are expected to be exceptionally busy on Saturday and Sunday. The majority of services are now fully booked with all seats reserved.
“I’m sure supporters will enjoy the occasion on Sunday, and continue to represent the club in a positive manner. We’ve built a really good relationship with the Sunderland fans over the past few seasons, having travelled with them on some memorable away days.”