Tour Operators Lindblad offers free air to Antarctic cruise By Felicity Long / January 09, 2013 Share 1 -- Lindblad Expeditions is offering free roundtrip Miami-Buenos Aires airfare on its Nov. 7 Antarctica cruise that also includes calls at South Georgia and the Falkland Islands. To be valid, the booking must be completed by March 31. Guests on the 23-night program will cruise aboard the National Geographic Explorer, an expedition ship designed to navigate polar passages that also features a fitness center and spa. Rates start at $20,740 per person, double. For more details, visit www.expeditions.com.