The trouble that greets the Griswold family in National Lampoon’s Vacation? Not so bad.

The adventures of Del Griffith and Neal Page in Planes, Trains and Automobiles? A breeze.

The Calgary Flames’ three-game sojourn to Southern California? Now that was a road-trip from hell.

Monday’s 3-1 loss to the Los Angeles Kings was — mercifully — the final item on the Flames’ itinerary in SoCal, where they surrendered 13 goals and scored just three of their own.

“It was a big step in the wrong direction,” said Flames captain Jarome Iginla. “We get to go home, and we’ve gotta win games, but this trip definitely put us a ways back.

“We have to play better. We have to find ways to out-compete the other teams. We have to to find ways to win. This was a close game … but they found a way to win it. That’s what we haven’t been doing enough lately.”

The Flames arrived in the Golden State on a two-game winning streak, filled with optimism after the return of star goalie Miikka Kiprusoff from a knee injury.

They’re heading home as the worst team in the NHL’s Western Conference, stuck at the bottom of the standings and six points out of a playoff spot with a 9-11-4 mark at the midway point of their season.