Allan Saint-Maximin’s stunning extra-time winner helped Steve Bruce’s side edge past Oxford United in dramatic fashion and set up a trip to West Bromwich Albion.
But do the bookmakers think United can win the tournament? Click and scroll through the pages to see how their chances are rated:
9. Newcastle United
Odds to win the FA Cup: 33/1 | Getty Images Photo: Ian MacNicol
10. Sheffield United
Odds to win the FA Cup: 28/1 | Getty Images Photo: PAUL ELLIS
11. Arsenal
Odds to win the FA Cup: 12/1 | Getty Images Photo: DANIEL LEAL-OLIVAS
12. Manchester United
Odds to win the FA Cup: 11/1 | Getty Images Photo: Michael Regan