Nonstop deal from across the US to London (from $406)

Here’s a widespread, nonstop deal from across the US to London!
Example tickets:
Austin (AUS) – $440 *
Boston (BOS) – $390 *
Chicago (ORD) – $409 *
Denver (DEN) – $441 *
Ft. Lauderdale (FLL) – $436 *
Las Vegas (LAS) – $470 *
Los Angeles (LAX) – $404 *
New York City (JFK) – $380 *
Seattle (SEA) – $394 ?
* – nonstop??
NORMAL PRICE: $850+
AIRLINE: Norwegian
Found at: https://indieflights.com/