Norwegian carried 3.1 million passengers in September, a 14% increase on the same month last year.
The airline said the growth was strongest on its intercontinental routes and load factor overall was up 0.3 percentage points to 90%.
The total traffic growth (RPK) increased by 29% while capacity growth (ASK) increased by 28%.
"We’re very pleased to see that more passengers are choosing Norwegian when they travel, not least business travellers," said CEO Bjorn Kjos.
"The demand is good and stable in Scandinavia, and the growth is highest on our intercontinental routes. Global expansion is important to position ourselves in a market with such strong competition, but also for creating economic value in the markets we operate."
