Norwegian Air Sweden

[2] On 20 November 2018, the airline, legally incorporated as Norwegian Air Sweden AB (IATA code LE, ICAO code NSW, callsign NORDIC),[3][4] took delivery of its first aircraft, a Boeing 737 MAX 8, having received its air operator's certificate.

[5] The airline had since received additional aircraft both by direct delivery from Boeing and transferral from parent Norwegian Air Shuttle and its other integrated subsidiaries.

[6] Starting in August 2019, the airline began operating some short-haul flights based at Oslo Gardermoen and Stockholm Arlanda on behalf of its parent company.

[7] The airline, then with Boeing 787-9 aircraft registered in its fleet, was to later take over the operation of various long-haul flights based at Rome Fiumicino during the following 2020 summer season,[8][9] however, the long-haul operations between its parent and associated sister companies were initially suspended in March 2020 as a result of the COVID-19 pandemic and its impact on aviation.

[11] By April 2021, the base and flight operations of Irish Norwegian Air International were transferred to Norwegian Air Sweden, after which the Swedish airline would inherit the operation of bases situated outside of Norway, but within the rest of the European Union (EU) on behalf of its parent company.