However the North Atlantic airline ran into financial difficulties, and a turbulent six-month negotiation to find a buyer for the airline. First trying Icelandair, the national carrier, then American company Indigo Partners who run the airline Wizz.
"I will never forgive myself for not acting sooner," Mogensen wrote to employees on Thursday. "WOW was clearly an incredible airline and we were on the path to do amazing things again."
The airline website was updated last night with a travel alert informing passengers that "WOW AIR has ceased operation. All WOW AIR flights have been cancelled."
Passenger Barrai Omuireagain was waiting for a transatlantic flight on Wow from Dublin.
The seven PM service he had been waiting on was delayed by an hour, then another hour and so on until at 11pm he asked Wow's groundstaff what would happen if the company finally went bankrupt.
"She said it wouldn't happen and gave us a pizza, saying we're expecting a flight plan in the next 15 minutes," he told the BBC.
"Next thing the PA said the flight was cancelled."
Ahead of the busy Summer season, and an increasingly popular route the disappearance of the carrier is sure to be felt.
At the moment it is believed that around 10000 passengers have been directly affected.
With the overnight collapse of Wow, Twitter lit up with stories of cancelled honeymoons and tired passengers camping out in airports only to finally be told that there would be no further flights with Wow.