The low-cost carrier will add frequencies on four transatlantic routes from Gatwick to the US from 29 March 2020. But there will also be service reductions on some long-haul routes from the same date.

Gatwick to San Francisco will become a daily service for summer 2020, up from five per week, and there will also be one extra weekly service to Austin (up to four weekly), Denver (four weekly) and Tampa (three weekly).

Frequencies will be reduced from 29 March 2020 on the following routes: Gatwick-Buenos Aires (down to five weekly), Gatwick-Miami (six weekly), Gatwick-Orlando (five weekly) and Gatwick-Rio De Janeiro (three weekly).

Matthew Wood, Norwegian’s senior vice-president, commercial, said: “In line with our business strategy of moving from growth to profitability we are ensuring that we concentrate on key routes across our network where we see strong demand.

“These frequency adjustments ensure that our customers can have more choice when choosing their flights to the US at fares that remain affordable to all.”