The present invention extends to methods, systems, devices, apparatus, and computer program products for transferring data through a bonded communication link. A bonded communication link bonds together capabilities from each of a plurality of other communication links to form a higher bandwidth communication link relative to each of the plurality of other communication links considered separately. Link qualities can be monitored for each of the plurality of other communication links. Different priorities can be assigned to different types of data. Based on monitored link qualities and assigned data priorities, different data types can be routed via different of the other communication links. Routing different data types via different of the other communication links facilitates selective transmission of higher priority data when quality degrades on a communication link.