UPDATE: This is now dead.
I am going to make this quick and I suggest you book quick as this fare can be pulled at anytime. You can currently fly from Norway to the United States (MANY CITIES) for around $500 roundtrip in BUSINESS CLASS. This is an unbelievable fare with flights operated on American, British Airways, Finnair, and Iberia – the route and operating airline depends on your route. I did a quick search for Norway to JFK and saw a flight for $533. I know there are fares out there as low as $450 based on the FlyerTalk thread discussing this deal (which I suggest checking out if you are interesting in this fare). When searching the fares make sure to change your search result to a business class seat.
Also, depending on how you value business class seats, this could be an opportunity to use miles for a flight to Norway and this deal for the return. Even though it is a roundtrip ticket you can always just not use the return portion back to Norway. The fares seem to be available between September 2015 and June 2016.
How to book: You can book this through American Airlines directly, or a third party reservation system like Orbitz and Priceline. If you book with American you cannot cancel with no fee, where as the other two you have 24 hours + to cancel (Priceline is up until 11:29pm ET the day after you purchase, and Orbitz is 11pm ET the day after you purchase). While American lets you put a flight on hold for 24 hours, I’d not assume they will allow you to ticket it tomorrow if this is some sort of error that they will end up honoring.