Norwegian Air Shuttle low airfares from to London (LGW) to Boston (BOS), Los Angeles (LAX), New York (JFK) and Oakland (OAK) are starting from $276 round-trip. Flights are available from January through March 2017 with limited availability, so you need to book before these prices disappear. Norwegian is a low-cost carrier and will charge you for extras like seat selection and large carry-ons. The budget airline flies its 787 Dreamliner equipped with Rolls-Royce Trent 1000-TEN engines on all of its long-haul flights. The aircraft has 32 premium seats and 259 seats in standard economy.