Interlining

Interlining
Carriage of passengers and/or freight by one airline on behalf of another airline, based on a formal arrangement (an interline agreement) between the airlines which involves the coordination of baggage checks, carriage or air cargo, ...

Interline / Interlining, Interline Connection
Using multiple airlines to reach the final destination.

Interline / Interlining - using multiple airlines to reach the final destination.

Code sharing differs from interlining, a much older industry practice, developed when the government regulated where airlines could fly, ...

If a passenger's flights are operated by two different airlines, they may check baggage or obtain boarding passes for the entire itinerary directly at the departure city's airport, pursuant to interlining agreements or airline alliances.

See also: Route, Ticket, Hub, Destination, Aircraft