Addis Ababa (ADD) to Buenos Aires (BUE): 6,986 miles (11,243 km) great-circle, about 14h 30m nonstop by our estimate. Cheapest fare observed: $2255 round-trip on Ethiopian, nonstop, departing May 28, 2026.
$2255 round-trip, Ethiopian ET506, departing 2026-05-28 at 09:40, returning 2026-06-03. The recorded itinerary left on a Thursday, returning on a Wednesday 6 nights later; the fare was observed 33 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $2255, it ranked 29th of the 30 round-trip fares we recorded from ADD (median $825). That is 32.3 cents per great-circle mile (round-trip price over one-way distance), above the ADD median of 26.5 cents across 30 round-trip routes.
Routes from ADD of similar length: Asuncion (6,874 mi) at $1791 and Sao Paulo (6,168 mi) at $1386.
Ethiopian had the cheapest fare on 10 of 30 ADD routes. It is the 4th longest of the 30 routes we track from ADD.
Of 14 departure airports with a fare to Buenos Aires, Addis Ababa (ADD) ranked 14th at $2255. Lowest: $251 from Rio de Janeiro (GIG); highest: $2255 from Addis Ababa (ADD); 5 nonstop. Cheapest-fare airlines (routes): Arajet (3), LATAM (2), Aeromexico (1), Air Canada (1), Avianca (1) and Cathay Pacific (1), plus 5 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Africa/Addis_Ababa, America/Argentina/Buenos_Aires; flight time is our estimate.