Originally Posted by
SQ421
Tinkered around a bit more and now have got this working in Firefox (on Windows). The cabin/routing doesn't necessarily populate through to Hipmunk and some of the other sites for multi city routings.
OTOH, who knew DL can ticket itineraries not touching DL metal/code at all.
All airlines can (although some won't) ticket on any airline as if they were a travel agent (notable exception being Southwest who doesn't allow any 3rd party ticketing). That said what they cannot do without specific agreement is sell discount fares.