the cost
The reason people use planes typically is its cheaper or roughly the same price when compared to driving - especially if you do t have the efficiency of being able to travel with multiple people.
the chance of getting sick because of the recycled air
Do you have anything to back this up? My understanding, during covid, air plane travel was relatively safe in comparison to other enclosed spaces due to the air filtering equipment.
How far of a distance was it? I'm trying to plan a trip right now and if I drive by myself the plane is easily cheaper. If I go with a group of people then driving is obviously cheaper.