Buenos Aires (EZE) to Ushuaia (USH): 1,460 miles (2,350 km) great-circle, about 3h 25m nonstop by our estimate. Cheapest fare observed: $291 round-trip on Aerolineas Argentinas, nonstop, departing May 25, 2026.
$291 round-trip, Aerolineas Argentinas AR1876, departing 2026-05-25 at 08:00, returning 2026-05-28. The recorded itinerary left on a Monday, returning on a Thursday 3 nights later; the fare was observed 30 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $291, it ranked 9th of the 30 round-trip fares we recorded from EZE (median $530). That is 19.9 cents per great-circle mile (round-trip price over one-way distance), close to the EZE median of 21.8 cents across 30 round-trip routes.
Routes from EZE of similar length: El Calafate (1,266 mi) at $485 and Rio de Janeiro (1,240 mi) at $318.
Aerolineas Argentinas had the cheapest fare on 6 of 30 EZE routes. It is the 17th longest of the 30 routes we track from EZE.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Argentina/Buenos_Aires, America/Argentina/Ushuaia; flight time is our estimate.