**A new bridge between hemispheres** SAS and Aerolíneas Argentinas, both SkyTeam members, have announced a codeshare agreement set to launch in the third quarter of 2026. The partnership will open new travel options between Argentina and Scandinavia via Madrid and Rome, offering single tickets, streamlined check-in, and cross-frequent-flyer benefits. The most striking aspect is the symbolic connection of the world's southernmost commercial airport — Ushuaia-Malvinas Argentinas in Tierra del Fuego — with its northernmost counterpart, Longyearbyen in Svalbard, all on one itinerary. **Network structure and strategic rationale** Under the agreement, Aerolíneas Argentinas will place its AR code on SAS-operated flights between Madrid and Rome and the Scandinavian capitals Copenhagen, Stockholm, and Oslo. In return, SAS will place its SK code on Aerolíneas Argentinas transatlantic flights from Buenos Aires to Madrid and Rome, creating seamless one-stop connections between Scandinavia and Argentina. This is part of SAS's broader strategy since joining SkyTeam in 2024 to strengthen its long-haul network through alliance partnerships, following recent deals with Air Europa, TAROM, and Garuda Indonesia. For Aerolíneas Argentinas, a SkyTeam member since 2012, the codeshare complements existing cooperation in South America and Europe, consolidating its presence in Northern Europe. **Operational and passenger benefits** Passengers will enjoy a single ticket, single check-in, and baggage through-check to the final destination. Frequent flyers of both programs — EuroBonus (SAS) and Aerolíneas Plus (Aerolíneas Argentinas) — can earn and redeem miles across the combined network. Eligible customers also gain access to SkyPriority services: priority check-in, security, boarding, and baggage handling. For SAS, this partnership comes amid a repositioning of its long-haul network and improved punctuality, recently ranking among the world's most on-time airlines. Aerolíneas Argentinas continues expanding its commercial agreements to strengthen Buenos Aires as a regional hub. **What this means for ATPL and ATC students** This agreement is a textbook example of how codeshares and alliances extend an airline's reach without adding aircraft. For ATPL students studying airline management or network planning, it demonstrates the strategic value of interline and codeshare partnerships in building global connectivity. ATC students can note how such agreements increase traffic flows at hubs like Madrid and Rome, potentially affecting sector demand and coordination between adjacent ACCs. The symbolic link between Ushuaia and Longyearbyen also highlights the importance of polar and remote airport operations, including special procedures for cold weather, limited nav aids, and unusual runway configurations — topics relevant to both pilots and controllers. **Implementation timeline** The codeshare is scheduled to go live in Q3 2026, pending regulatory approvals. The exact sale date and the full list of Argentine domestic destinations available under SK code from Buenos Aires have not yet been released.