Hull City won promotion to the Premier League with a 1-0 victory over Sheffield Wednesday in the Championship playoff final at Wembley overnight (NZT) to unlock millions of pounds from a game billed as the richest in world soccer.

Mohamed Diame grabbed the winner in the 72nd minute with a swerving long-range strike for Steve Bruce's side to settle the clash between the two Yorkshire clubs with Hull set to earn up to STG170 million ($A345.35 million) from their triumph.