This is an outstanding deal, although I would probably choose to route LAS-AMS-BRU and return to stretch out the long-haul leg rather than have a domestic connection and short flight from the east coast. You'd get on KLM's 787 product, as well, which is probably nicer than DL's older 767 from JFK. It prices at $1,712 on ITA Matrix and clicking through with PowerTools will get you that price although it jumps if you try to use Google Flights.
If you have an American Express Platinum Card, this is eligible for IAP pricing and the price drops all the way to $1,437 (with the connection in ATL), which is an exceptional price for round trip business to Europe from LAS, in my opinion.
