SANTIAGO, Chile — Expedition cruise operator Australis is offering free air roundtrip between Santiago, Chile, and the ports of Punta Arenas, Chile and Ushuaia, Argentina.

The airline savings of approximately $900 applies to four-, five-, and seven-night cruises booked for February and March.

For the four-night itinerary fly from Santiago to the departure point for the cruise in Punta Arenas, Chile. The cruise ends in Ushuaia, Argentina, where travellers will fly to Santiago via Buenos Aires. Rates for the cruise start at $2,410 per person sharing, depending on the cabin. Choose from the following departures: Feb. 22 and 26 and March 1, 6, 8, 13 and 29.

The five-night itinerary is a new Tierra del Fuego by Land and Sea launch. Begin and end in Punta Arenas. Rates for the cruise start at $2,815 per person sharing, depending on the cabin. Choose from the following departures: Feb. 5, March 8, March 23, March 24 and April 7.

The seven-night itinerary is a roundtrip cruise. The trip will begin and end in Punta Arenas. Ushuaia is the halfway point. Rates for the cruise start at $3,958 per person sharing, depending on the cabin. Choose from the following departures: Feb. 3, March 6, March 8 and March 29.

The cruise is an all-inclusive experience and includes accommodation, all meals, an open bar, shore excursions and on board entertainment. The deal is good as long as supplies last. For more information, visit australis.com/landing-enero/ticket-aereo-incluido_en.html.