The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
The 19 December 2025 ceremony itself is confirmed, but it was a technical opening rather than the completion of Phase 1: Wikipedia[2] records it as a ceremonial 'technical opening' with full commercial operations scheduled for December 2026, and the government's own report counted only three of 15 construction packages finished, with 12 still under way.
Wikipedia confirms a 'technical opening ceremony already occurred on December 19, 2025, featuring initial test flights,' matching the pin's stored date, while noting full commercial operations were not scheduled until December 2026.
Vietnam's Government Portal headline states the airport was 'ready for first flight on December 19' 2025, exactly matching the pin's stored date.[1]
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.