What Is a Codeshare Flight
The gist
A codeshare flight is a flight operated by one airline but sold by multiple airlines under their own flight numbers.
Explain like I'm 5
It's like two friends sharing one bike but each telling their other friends they have their own bike ride to the same place.
Big picture
Codeshare flights help airlines expand their networks without flying more planes themselves, making travel more convenient and seamless for passengers.