The third period proved the difference as the Flames fell 5-3 to the visiting Utah Hockey Club Thursday night at the Scotiabank Saddledome.
Calgary held a 3-2 lead heading into the final frame, but the visitors scored a pair of quick tallies before adding an empty-netter late in the victory.
Blake Coleman, Connor Zary and Brayden Pachal scored for the Flames, while Dan Vladar made 21 saves.
Pachal’s tally was his second of the season and came in his 100th NHL game.