Last year's overall World Cup champion bettered Richard Freitag of Germany and another Norwegian Rune Velta in front of a crowd of around 10,000.
Bardal stated his intent from the off, jumping 130m to take the lead in the first round before claiming victory with an effort of 128m in the final.
"The wind conditions were difficult today, but I tried to concentrate on making two good jumps and now I'm happy with the result", said Bardal.
But it was Freitag who registered the biggest jump of the day - 131.5m in the first round - before having to settle for second place.
"It was a bid windy today and I had some luck. but I'm also happy with my jumps," the 22-year-old German said.
For third-placed Velta, silver medallist at the last Ski Flying World Championships, it was a first career visit to a World Cup podium.
"I'm very happy about my jumps and also that my shape seems to be stable now," said Velta.
The World Cup moves to Zakopane at the weekend for both team and individual jumps.