The Future of Ultra-Long-Haul Travel
Air travel is about to hit a new milestone. Starting December 4, 2025, China Eastern Airlines will launch one of the world’s longest direct routes, connecting Shanghai, China and Buenos Aires, Argentina. This journey — with a brief refueling stop in Auckland, New Zealand — is set to redefine how travelers think about ultra-long-haul flights.
For those who have long faced complicated layovers in North America or Europe to get between Asia and South America, this new route offers a groundbreaking alternative. Here’s everything you need to know.
Key Route Details
- Route: Shanghai Pudong → Buenos Aires Ezeiza (via Auckland, no deplaning)
- Launch Date: December 4, 2025
- Frequency: Twice weekly (Shanghai departures on Mondays & Thursdays; Buenos Aires returns on Tuesdays & Fridays)
- Aircraft: Boeing 777-300ER
How Long Is the Journey?
- Shanghai → Buenos Aires: ~25.5 hours, helped by tailwinds
- Buenos Aires → Shanghai: ~29 hours, slowed by headwinds
- Total Distance: ~12,000 miles (≈19,300 km), making it one of the longest direct flights in aviation history
Ticket Prices
- Economy class: US$1,538–$2,270 one way
- Business class: Starts around US$5,000
Why It Matters
This isn’t just about breaking records. The route strengthens connectivity between Asia and South America, supporting trade, tourism, and cultural exchange. For travelers, it means fewer layovers, more efficient travel, and a direct bridge between two major regions of the world.
What to Keep in Mind
- The Auckland stop is technical only — passengers stay onboard.
- The return journey is long and demanding; comfort upgrades may be worth it.
- Weather patterns play a huge role in timing, especially on the westbound leg.
Final Thoughts
China Eastern’s new Shanghai–Buenos Aires flight is a bold leap in long-haul aviation. While it won’t be the cheapest or shortest option, it will become a game-changer for travelers seeking a direct link between Asia and South America. For those willing to embrace nearly 30 hours in the air, the journey itself may become part of the adventure.