I recently booked an itinerary on Expedia as I could not book it on aircanada.com. It involves a codeshare segment marketed by BD on AC metal. When I pull my confirmation number up on Air Canada's website, I am able to see the itinerary below.



The YHZ-LHR segment BD4860 is operated by AC. My question is about the fare types listed here. Are these Air Canada fare types or fare types of the airline marketing the flight?

I know in the case of codeshares, mileage accumulation is based on the Aeroplan rules for the operating carrier. How can I tell if the L fare for that BD4860 flight equals an L fare for AC (100% mileage) or if it maps to something ineligible for miles?

(I do realize that the flights to and from CMN both marketed and operated by BD and LH are ineligible for mileage accumulation)

Thanks in advance for the help. Feel to say "You could have found the answer to this if you would bother to search the forum," but after doing so, I am still unclear on how fare types for one carrier map to another.