A businessman friend is able to price out on co.com IAH/VIE and MAD/IAH. He would like to get a flight from VIE to MAD on Air Europa (a CO partner but not a code share flight)) which is pricing now at $92.70 and spend a few days in MAD before going back to IAH.
If one attempts to get VIE/MAD via co.com using multiple destinations, it wants to route one to MAD via EWR!
In viewing an older thread it was suggested that by calling the co.com technical support desk, they can add the VIE/MAD AE flight to the itinerary and therefor the complete trip would be issued as one e-ticket.
Can anyone confirm that this is still the correct/cheapest/most efficient procedure?