Norwegian Airlines via ShermansTravel offers Norwegian Airlines Roundtrip Flights to London from select cities in the U.S. for as low as $329.80. (On the ShermansTravel landing page, click on "Norwegian.com" in the main paragraph to see this offer.) That's the best price we could find for a roundtrip flight to London in November by $69. This price is based on departure on November 19 from Boston, MA, (BOS) with arrival in London, England (LGW) and return on November 29. This sale includes departures from cities including Los Angeles, CA (LAX): Denver, CO (DEN); Orlando, FL (MCO); and more. Book this travel deal by July 15 for flights from October 1 through June 14, 2018.
All prices, dates, and booking details were valid at the time of publication.