Most different flags flown simultaneously
Who
American Express Meetings & Events
What
462 total number
Where
United States (New Orleans)
When

The most different flags flown simultaneously is 462 and was achieved by American Express Meetings & Events (US) at the INTER[action] showcase, in New Orleans, Louisiana, USA, on 12 December 2016.

The record was achieved at the New Orleans Morial Convention Center, and attempted by the 800 global employees at their annual INTER[action] event.