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With the advancement of information technology, the traffic and scale of airborne networks, especially the military airborne networks, are growing rapidly. How to efficiently schedule the airborne network traffic to improve the bandwidth utilization and meet the quality of service (QoS) needs of different services have become an urgent issue to be addressed. Software-defined networking (SDN) is a new network paradigm, which completely separates the network control plane and data plane, and controls the network logically. With these new features, it is possible for SDN to control network flows with higher efficiency and flexibility. However, existing airborne network equipment does not support the SDN technology, and it is difficult to upgrade the equipment in a short period. Therefore, it becomes necessary to study the traffic scheduling method considering a heterogeneous scenario with the coexistence of SDN airborne nodes and traditional IP-based airborne nodes. This paper puts forward a dynamic traffic scheduling algorithm for heterogeneous software-defined airborne network, which can improve the bandwidth utilization and network transmission efficiency of airborne networks.