WordNet (r) 3.0 (2006):

air-freight
    v 1: transport (cargo) by air [syn: air-ship, airfreight,
         air-freight]

Moby Thesaurus II by Grady Ward, 1.0:

57 Moby Thesaurus words for "airfreight":
   air express, air transport, air travel, air-express, airlift,
   airmail, asportation, bearing, carriage, carry, carrying, cartage,
   consign, conveyance, dispatch, drayage, drop a letter, embark,
   expedite, export, express, expressage, ferriage, forward, freight,
   freightage, haulage, hauling, lighterage, lugging, mail, packing,
   portage, porterage, post, railway express, range, remit, send,
   send away, send forth, send off, ship, shipment, shipping, shuttle,
   shuttle service, telpherage, toting, transmit, transport,
   transportation, transshipment, truckage, waft, waftage, wagonage