Ending today, Norwegian Air via DealBase offers 1-Way Flights to London, with prices starting from $145. That's the lowest price we could find for select routes by at least $179. Book this travel deal today for flights from September 1 through October 31. Shop Now Tips On the DealBase landing page, click "Norwegian" in the top line to see this sale. We found this price on flights departing from New York, NY (JFK) with arrival in London, England (LGW) on September 16. All prices, dates, and booking details were valid at the time of publication.