Lufthansa, one of Skytrax’s 5/5 star-rated World’s Best Airlines, have round trip airfare travelling from Philadelphia (PHL) to Oslo Norway (OSL) for $429 including taxes and fees. This makes one stop.
Departs PHL: daily starting Oct 29 thru Dec 7, 2017
Returns daily through Dec 14, 2017
Book this directly on Lufthansa
Sample attached.