Originally Posted by
GRALISTAIR
All I know is that I have 115 lifetime TATLs. I had 4 OpUps in 16years on CO/UA - Then 7 in 3.5 years on DL. I have had far greater success as an overall % and over time with DL on OpUps.
What Fare Class had you bought when you got DL OpUPs? I have 1 OpUp in ~25 RT TATL and happy to get that on a year-end "fare sale" flight.