I'm thoroughly confused here. I'm looking on Orbitz and I see Norwegian Air Shuttle flight 7700 on 4/20 at 12:05am from JFK direct to AMS and it appears as if I can book it. But, there's no such flight Norwegian.com. I also called Norwegian and they know of no such flight. On Orbitz, it's a daily flight, so it's not just an error in one day's schedule. I've also saw this 12:05am flight yesterday, so it's not just a glitch today.
So why's it appear on 3rd party sites, but not on the airline's direct site? If I book it on Orbitz, what's going to happen?