How can airports have flights to any destination you select on any day you need to fly?
In: Other
They don’t.
There is a flight to any given destination from some airport, somewhere in the world, on any given day. If you want to go to a place and there isn’t a flight to it from where you are, you fly to another airport that does have a flight to it, and then fly there. This is called a “connecting fligjt,” and sometimes there’s a lot of time between the two flights, called a “layover,” where you have to wait after flying in before you can fly out.
Part of this is because only certain airports are “hubs.” All the airports a given airline services fly in to this airport, and then out from this airport to wherever else this airline goes. That’s why so many flights go through Atlanta, Detroit, JFK, or O’Hare. Sometimes you have to fly to another airline’s hub and then take their flight out to your destination.
When I flew from Rochester, NY to South Korea, I had to fly from Rochester to JFK, JFK to Seattle, Seattle to Narita, Japan, and then on to Incheon, South Korea. There are no flights from Rochester to Incheon.
TLDR There are only flights to a given destination from some airport. You have to fly to somewhere that flies to your destination. Usually, in one or two steps, you can get to an airport where there’s a flight to where you want to go.
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