Yes. During COVID multiple airlines either almost went bankrupt or suffered huge losses because most of the cost of flying is depreciation of the airplanes them

Yes. During COVID multiple airlines either almost went bankrupt or suffered huge losses because most of the cost of flying is depreciation of the airplanes themselves. That's why even though the US govt paid for airline employees' wages and fuel costs were 0 because no one was flying during COVID, airlines still suffered big losses.