For international air-shipments, many times Fedex is just booking space on commercial carriers that they don't own, just like any other freight forwarder. So at

For international air-shipments, many times Fedex is just booking space on commercial carriers that they don't own, just like any other freight forwarder. So at that point, it mainly boils down to whichever freight forwarder has relationships + negotiated pricing + know how to get your product from point a to b with the best mix of cost/quality/service. Fedex isn't always the best, that's why UPS/DHL/any-other-forwarder exists. Air shipments are a major part of the supply chain. Any major forwarder is going to offer some air service. So that must fall in their normal use case.