The goals came minutes after Callum Harriott missed an open goal for the Addicks.
After Harriott’s miss, the game sprang to life on 65 minutes when Jose Baxter’s cross was stabbed in by Flynn.
And they sealed victory when Brayford’s shot deflected in. Coady had another effort ruled out for offside but it did not matter as the home side clinched their place at Wembley.
8’ – CHANCE: Baxter’s corner is headed over by Collins.
17’ – HALF CHANCE: Collins gets a touch to Jackson’s corner but cannot steer it towards goal.
19’ – HALF CHANCE: Harriott beats his marker and fires in a shot which is deflected but its straight at the keeper.
30’ – GOOD SAVE: Tudgay fires in a shot from the edge of the box which Howard parries.
39’ – DISALLOWED GOAL: Coady puts the ball in the net but is flagged off-side. Replays show he was in an off-side position when the ball fell to him five yards out.
45’+2 – CHANCE: Harris blazes over from distance after Murphy's cut back.
51’ – CHANCE: Maguire has his back to goal, turns well and hits his shot into the side netting.
59’ – OPEN GOAL : Harriott misses an open goal from five yards out. His sliding shot goes wide after the keeper had tried to block Tudgay's cross following a quick free-kick.
63’ – CHANCE: Tudgay fires a shot wide from 25 yards after finding space.
65’ – GOAL! Baxter’s whipped ball in from the left finds Flynn who stabs the ball in.
66’ – ANOTHER GOAL! The Blades score again with a deflected strike from Brayford from the edge of the box which hits Wood and nestles in the corner.
76’ - WOODWORK: The Blades hit the post through Baxter and Coady puts in the rebound but is flagged for off-side again.
90'+3 - GREAT SAVE: Howard produces a great save to parry Ghoochannejhad's effort.
Sheffield United have won nine games in a row for the first time in their history.
The Blades reach the semi-finals of the FA Cup for the first time since 2003.
The Addicks have scored just six times in their last eight games.
TALKING POINT: Should Johnnie Jackson have been sent off? His challenge on Jose Baxter was late, high and dangerous but he got just a booking. Because it was near the halfway line it might have saved him but it was the sort of challenge that referees have dismissed players for.
MAN OF THE MATCH
Jose Baxter (Sheffield United): The former Everton man brought the game to life with a fizzing cross that was turned in by Flynn. He was effective as a playmaker and one of the few standout players going forward.
Sheffield United: Howard 6, Harris 6, Brayford 8, Maguire 7, Flynn 8, Doyle 6, Baxter 9, Collins 7, Coady 7, Scougall 6, Murphy 7. Subs: Porter 5 , McGinn 4, Davies 4.
Charlton Athletic: Hamer 5, Wilson 5, Wiggins 5, Morrison 5, Wood 5, Cousins 6, Poyet 6, Jackson 6, Harriott 6, Tudgay 7, Church 6. Subs: Green 5, Ghoochannejhad 5, Ajdarevic 4.
THE MATCH IN A TWEET
#SUFC 2-0 #CAFC - The not-a-Sheffield-derby-or-a-glamourous-tie QF ends with a first third-tier side in the FA Cup last four since 2001
- Sports & Recreation
- Sheffield United
- Charlton Athletic
- Jose Baxter
- John Brayford
- Callum Harriott
- Johnnie Jackson
- Conor Coady