Originally Posted by
mattjp
JL actually has a codeshare on the NRT-CMB flight. Could I ticket with JL using that flight, or does the RTW have to get ticketed with the carrier whose metal is actually on the first leg?
I don't think the tool will show you codeshares. (But codeshares are allowed!)
The itinerary can be ticketed by any oneworld carrier, assuming they are willing. The tool sends your itinerary to the first carrier you have, but as I say, the tool is nice but it isn't perfect.
All the major oneworld carriers should be willing to ticket your itinerary. AA likes you to have at least one sector with them, which is fair enough. The smaller carriers might not have the technical expertise to do it.