According to the most recent data from OAG, a data driven organization for airlines, nine of the world’s Top 10 busiest domestic routes remain in Asia. Internationally the Orlando to San Juan, Puerto Rico route tops the list, although many argue it’s only a technicality for this to be considered an intentional route.
The top domestic US routes have seen a strong rebound lately.
For international travel, the story is still mixed.
You can seethe the city pairs seem very natural except JFK to Santiago Chile.
While April is showing improvement in traffic, the reality is global airline levels are still down severely from pre-pandemic levels.