I am aware that I should save my points in preferably one of the programs, however my question is if I can credit them to any one of the One World programs, or am I limited to FF program of the ticketed/marketed/operated carrier?
Also, on wheretocredit.com, which carrier should I select before selecting the fare code? The operating carrier, or the carrier of the FF program?
Any OW ffp. That's what alliances are about.
WtoC does not handle codeshare, but look at marketing carrier (flight number)
But WtoC is a general guide only. Better to look at your airline ffp web site