As I dig for my CO timetable.....
I'd think direct 1-stop flights would qualify for the mileage bonus: CO 36 SFO-EWR-DUS should earn double miles SFO-DUS if you book it all under the same flight number.
And you fly across the pond on a 737.
That's the only CO operated direct flight SFO-Europe I can find through random searching on Travelocity.
I also found CO 64 LAX-EWR-LIS, FYI.
Good luck!! I'm trying to figure out something similar, too.
[This message has been edited by Viajero Joven (edited 11-27-2000).]