Originally Posted by
channa
As for day of week, I have missed the EWR-SJC upgrade on Sundays at times. Obviously it's better than EWR-SFO, but it's not exactly a sure thing.
Now if anyone remembers EWR-OAK or EWR-SMF, now THAT was a sure thing.
I used to fly EWR OAK and received upgrades about 50% of the time...