Abstract: A method and system may provide offline communications on an aircraft by establishing a mesh network for client devices of airline personnel to communicate peer-to-peer. A first client device executing an airline application on an aircraft determines that the first client device is unable to access an online airline database. The first client device provides, via a short-range communication protocol over a dedicated secure communication channel, a request to open a communication session with a second client device. The request includes identification information for the first client device and an indication of the airline application executing on the first client device. In response to the second client device determining that the first client device has permission to communicate airline data peer-to-peer with the second client device in a mesh network, the first client device receives airline data via the mesh network, and stores a local copy of the airline data.