What does it mean when a flight number has one airline’s name but the flight is actually operated by another airline? (What is codesharing?) Both airlines have code-sharing agreement and operate and transport passengers each other. If you have a codeshare flight, the baggage regulation and check-in is handled by the operating airline. Was this article helpful? Can't find what you're looking for? Inquiry Form Related articles I cancelled my reservation but I have yet to receive my refund. What do I need when I contact the airline? What do I need to check in for my flight? I am trying rebook my flight but I cannot find any at the price/time I found before. What is the maximum number of travellers that be included in a single reservation?