Of all the airports that receive regular commercial flights, which airport receives the fewest flights per day or otherwise experiences the lowest rate of commercial traffic? Major hubs can receive hundreds of flights per day - are there airports out there that regularly receive only one regularly-scheduled commercial flight per week? Per month? Per year? Per decade?
To be clear, by "receive regular commercial flights", I am referring to airports that do have some commercial activity, even if the primary focus of the airport is military or general aviation (i.e. private or charter flights). For example, if there's an airport out there that is really intended for general aviation activities, but there is a nominal or ceremonial commercial flight held every year on February 5 to comply with regulatory requirements that the airport "accept and receive commercial flights", that counts as an airport that "regularly" receives commercial flights.
Even airports that make it onto lists of the world's "smallest" airports tend to receive at least a few flights a week - I'm more interested in the airports where getting to the airport on a commercial flight is possible, but extremely difficult to schedule. So, something like "Well, there's this remote fishing village in northern Nunavut [link]. Most people get there by charter flight and/or dogsled, but Air Canada runs a standard commercial flight every five years, the next one is on January 10, 2025. There are no other regular services." would be a great answer.