The Iron are 16/5 with Sky Bet to defeat Blackpool at Bloomfield Road on Tuesday night.
Blackpool are 17/20 for victory, while a draw is available at odds of 13/5.
United were 3-2 winners the last time they played away there, and can be backed at odds of 50/1 to repeat that feat from December 2017.
Fancy both teams to score in the first half? That can be backed at 7/2.
For more odds, visit www.skybet.com/scunthorpe and remember that every bet placed benefits the club financially.