It offered a sandwich or a cold snack, soft drinks, juice, tea, and coffee on all short-haul flights as well as on charter routes to Greece, Tunisia, and Turkey.

In October 2014, Niki announced the cancellation of their flights from Vienna to Copenhagen, Moscow, and Frankfurt due to decreasing demand.

[9] On 5 December 2016, parent company Air Berlin announced plans to sell its entire 49 percent stake in Niki to its own minority owner Etihad Airways.

[10] It had also been announced that Niki would take over several routes to southern European, north African, and Turkish leisure destinations from Air Berlin as part of the new joint-venture.

Also in December 2016, Niki announced the termination of its only medium-haul route, from Vienna to Abu Dhabi, Etihad's home base, by March 2017.

[13][14] In January 2017, it was also announced that Niki will cease all operations to and from Linz Airport at short notice due to the restructuring measures.

On 9 October 2017, Air Berlin told its staff that it would cease all remaining operations under its own brand name, but that Niki flights would continue after this date.

On 12 October 2017, it was announced that German Lufthansa would purchase some of the assets from Air Berlin which included Niki and operations would continue and jobs were to be saved.

[23] On 29 December 2017, it was announced that International Airlines Group (IAG), parent company of British Airways, Iberia, Aer Lingus and Vueling, would acquire for 36.5 million euros major parts of Niki including 15 Airbus A321 aircraft and traffic rights in Düsseldorf, Munich, Vienna, Zurich and Palma de Mallorca.

Niki operated scheduled services to leisure destinations mainly in Spain, Portugal, and North Africa from its home base in Vienna as well as several more airports throughout Austria, Germany, and Switzerland.