Premium cabin fares on Norwegian’s winter transatlantic flights from Gatwick have been slashed by up to 30%.
One-way rates now start at £399 to Boston, down from £449, while New York premium fares lead-in at £419 against £499.
Other destinations seeing premium fare cuts include Los Angeles, Oakland, Orlando and Fort Lauderdale, all down from £579 to £499.
A new twice-weekly route to Las Vegas, starting on October 31, will also see a premium fare of £499 as will flights to Puerto Rico which resume on November 2.
Premium passengers can check in two 20kg bags, use fast track security, lounge access and priority boarding.
On board they have seats with 46-inch legroom, meals and unlimited drinks.
The premium cabin has 32 seats on the Boeing 787-8 Dreamliner and 35 seats on the larger 787-9.
Chief commercial officer, Thomas Ramdahl, said: “Norwegian’s premium cabin gives passengers extra travel perks without a premium price tag.
“Not only do we offer high quality comfortable seating on the latest 787 Dreamliners but premium passengers also receive greater value with added extras including lounge access and fast track priority which is unmatched by any other airline.
“With our new affordable fares, we expect long-haul business and leisure passengers to fill the front of our aircraft, benefitting from a more enhanced travel experience with Norwegian.”
Additionally, increased long haul demand helped lift passenger numbers by 11% last month at Europe’s third-largest budget airline.
Carryings were up to more than 2.6 million passengers over the same month last year.
The load factor improved by 3.4 percentage points to 88.3%.
Chief executive, Bjørn Kjos, said: “We are very satisfied that an increasing number of business and leisure passengers are choosing Norwegian.
“On intercontinental routes in particular, we are experiencing increasingly strong demand as we continue to launch new routes and destinations, not least between London Gatwick and the US.”
The airline took delivery of one Boeing 737-800 in May as part of plans to introduce 21 aircraft this year.