The trio of Jesse Linner, Austin Lewis and Daniel Morin picked up two points apiece while Dean Shepherdson turned aside all 23 shots he faced as Ice Dogs blanked Sioux Lookout.
A close-checking first period saw Dryden break the ice in the late stages of the session as Ryan Lobreau buried his 19th goal of the season at 19:25.
A Diego Breckenridge man advantage effort six minutes into the middle frame extended the lead for the home side heading to the final stanza.
There the Ice Dogs would tack on three goals 4:45 apart to take full control as Lewis, Linner and Bryce Maggrah all found the back of the net.
Jayme Brattengeier faced 36 shots in defeat for the Flyers who dropped to 15-16-1 on the year.
Shepherdson recorded his first SIJHL shutout in the victory helping Dryden raise their overall record to 16-13-4.
