Based on flight volume data, Tunis Carthage is the most popular airport that Tunisair uses. Paris Orly and Marseille are the next two most visited by Tunisair.
The least expensive round-trip Tunisair international flight we could find is flying from Tunis Carthage to Nice Côte d'Azur. This trip has 0 stops) and costs just 1,995,774 ₫ per ticket. Tunisair has international one-way flights available, but the cheapest is a flight from Tunis Carthage to Nice Côte d'Azur for just 821,789 ₫. This flight has 0 stops.
Tunisair does not have flights from Ho Chi Minh City - you will need to fly out of Dubai Intl instead. However, you could fly from Ho Chi Minh City with Emirates or another airline.