Originally Posted by USFlyerUS
If I book a DL coded itinerary operated by NW and put my NW FF # in the reservation, will I still be eligible for EUA? The NW coded flights are literally double what DL is selling them for.
I have only done this once, but I did get my UG. I believe that when you put your NW number in, the airline automatically recognizes that over the coding. I have had the reverse on DL and gotten an UG if I put in my DL number on a NW coded flight.