All those super low fares from Florida to Scandinavia are holding steady! As seen below, we found seats for travel in late May from Ft Lauderdale FLL to Oslo OSL for $441 round-trip, including all taxes, on Norwegian. For booking info, see our Fare Details.
Also from Norwegian, Ft Lauderdale to Copenhagen CPH, Denmark is nearly as low at $525 round-trip, nonstop, for dates in late spring.
For travel later in fall, Delta/KLM is offering fares to Bergen BGO, Norway for $491 round-trip, though connecting via JFK and Amsterdam for most itineraries.
And from Orlando MCO, nonstop fares to Oslo are $525 round-trip, including all taxes, for travel next fall/winter.