- Definition and Basics
- Interlining enables passengers to change flights between multiple airlines without re-baggage
- Airlines can offer free rebooking if connections are lost
- Interline agreements differ from codeshare, which only allows airline-specific numbers
- Implementation and Structure
- Airlines can have unilateral (one-way) or bilateral interline agreements
- IATA mandated electronic ticketing for smaller carriers after 2007
- Most low-cost airlines don't support interlining
- Business Model
- Issuing airline collects fare and pays commission to agency
- Operating airline collects passenger taxes and sends invoices
- International tickets typically issued by first international carrier
- Virtual Interlining
- Companies like Dohop offer virtual interlining with additional services
- Passengers must re-claim baggage and check-in
- Virtual interlining works better in visa-free areas like US and Canada