Tunisair Express (French: Société des Lignes Intérieures et Internationales, Arabic: الخطوط التونسية السريعة) is an airline based in Tunis, Tunisia that was founded on 1 August 1991.

From its founding in 1990 until 2000, Tunisair Express was known in French as Tuninter, and bore the Arabic name "Domestic Airline" (الخطوط الداخلية).

SevenAir was owned by a relative of the wife of the then-President of Tunisia, Zine El-Abidine Ben Ali, and was renamed TunisAir Express following Ben Ali's departure from Tunisia on 14 January 2011.

[2] In August 2024, the CEO of Tunisair, Khaled Chelli, along with the head of its internal union, Najmeddine Mzoughi were arrested as part of an investigation that began on corruption charges.

[3] Montacer Bnouni was appointed as Director General of Tunisair Express on Juin 2024.