I have an upcoming TATL reservation were I am waiting for a GPU to clear. Out of curiosity I checked the "Upgrade Your Flight" tabs to see what it would cost outright. It is either $480 cash or $550 + 20,000 miles. The cash+miles offer is obviously a fixed number based on my fare class. Curious none-the-less.

The new website was also trying to sell me an "Economy lowest" ticket for $681, whereas "Economy flexible" was $459.




EDIT: Just checked a second TATL reservation. $515 cash or $550 + 20,000 miles to upgrade to C.