Originally Posted by
littlepink
I am planning on booking a ticket from YYZ to ICN via CDG, operated by Air France. Then, I am planning on buying a separate ticket flying from ICN to XMN, operated by Xiamen Air, at the same day. I don't know why I can't find the whole trip from USA/Canada to XMN (China) in the system, but I know it is normal. That's the reason why I am planning to book two separate trips and combine them together.
Do not do this.
Pick up the phone and talk to Air France, or better yet talk to a travel agent locally. Air France is not a real travel agent, and they will predominantly only want to sell tickets on their own services, and a very very small subset of all possible partner flights. A travel agent will be able to issue these flights on the same ticket even if AF can't or doesn't want to.
There is no such thing as "combining" tickets once you have purchased them separately.