The under-18s progressed into the third round of the FA Youth Cup with a 2-1 win at Glanford Park on Tuesday night.
Nathan Shaw got the first goal for the visitors before Harry Jessop levelled, forcing the match into extra-time.
Sean Graham grabbed the winner after 110 minutes of play with a composed finish into the back of the net.
Blackpool started the game the better of the two sides, with the first chance coming for the visitors a few minutes in. Nathan Shaw put a corner into the area, but the ball was headed just over the bar.
Moments later, Sean Graham got the ball and drove in-field. From doing so he was able to get a shot away, but that sailed over the bar.
Scunthorpe then hit the woodwork. A free-kick which was whipped in found the Scunthorpe striker at the back post who headed onto the bar.
Blackpool were really looking dangerous on the attack. Will McGladdery this time getting forward. He ran down the left to then cross to the back stick, the ball was then headed back across goal towards Jaaskelainen who headed wide from close range.
After a few good chances, Blackpool got the opener. Ryley Smith switched the play to Sean Graham on the right, he came in-field again and played the ball in towards Bange, who couldn’t quite get hold of the ball. It then fell to Nathan Shaw 20-yards out, he struck his shot with venom, and despite the goalkeeper getting a hand to it, the ball hit the back of the net.
The hosts nearly replied straight away. They closed down Harvey Simson well and when he tried to clear it the ball bounced off the Scunthorpe man, but the attack came to nothing.
Graham, who was having joy down the right, got in again. He crossed left footed towards Bange, who somehow managed to head wide.
The hosts then had a few chances. The first was a ball across the face of goal which Blackpool cleared for a corner. Then a succession of corners led to a real chance. Scunthorpe took one short, a cross then found a man in the area but he rocketed over the bar.
Scunthorpe then grabbed one back. A cross from the right was put into the area, Blackpool scrambled to clear the ball, but it found its way to Jessop who was there to tap in.
On the stroke of half-time, Sean Graham again got the better of his man and crossed towards Bange, but he headed wide.
Half-Time: Scunthorpe 1 Blackpool 1
Scunthorpe had the first real chance of the second-half. A loose pass from Blackpool set the hosts free in midfield, when no one closed the ball down it allowed them to get a shot away, but that went over the bar.
The hosts came out the stronger of the two sides after the interval. This time they had a free-kick, but Simson held well when the ball was crossed in.
Blackpool were looking to grow into the half and they nearly had a second. Bange flicked a ball around the corner of the defender for Hayden Ravenscroft to run onto, he raced through towards goal, but dragged his shot wide.
The visitors then had penalty claims waved away by the referee. Shaw played a through ball for Graham to run onto and as he got into the penalty area he appeared to be brought down, but the referee said no penalty and play continued.
Nathan Shaw then played a pass to Ryley Smith, who found Ewan Bange on the edge of the area, he cut in on his right foot to shoot, but that just skimmed the roof of the net.
Scunthorpe then went forward themselves. They took a shot from the edge of the box which went just wide of Simson’s post.
In added time Bange nearly got the winner. He found space in the area to turn and shoot, but the keeper was there to meet him and saved, resulting in the game going to extra-time.
Full-Time: Scunthorpe 1 Blackpool 1
Blackpool’s best chance in the first-half of extra-time fell to Sean Graham, who latched onto a ball over the top from Nathan Shaw before seeing the ‘keeper parry his strike away.
The Seasiders looked the stronger side in the final 15 minutes, though Andy Kanga was unable to beat the Scunthorpe stopper with an attempt.
Nathan Shaw was next to try a shot. He found space on the edge of the box to get his shot away, but again the keeper stood firm.
Then the breakthrough came. Will McGladdery came out of midfield with the ball and found Shaw in the middle of the pitch. He ran at the Scunthorpe defence and played in Graham, who slotted the ball under the keeper to give Blackpool the lead with 10 minutes to go.
Blackpool then saw the game out with Bange and Kanga holding it up at top end of the pitch.
Full-Time AET: Scunthorpe 1 Blackpool 2
Blackpool: Simson, Williams, Winstanley, Maddox, Avon (C), Smith (Kanga), Graham, Shaw, Jaaskelainen (Ravenscroft), Bange (Liptrott), McGladdery (Turner).