Agree and disagree with last poster. I've upgraded three out of four in the last 12 months and have upgraded MCI last time I did it.

However, prime time ORD flights are tough. I upgraded ORD three weeks ago as a Plat - a noon flight. I missed upgrading ORD-DCA on the return on a prime time dinner flight - was #1 on the list.

I do ten to upgrade MIA - in the early morning and late evening flights. This is an elite heavy route as its hub-hub and you get a lot of cruisers who pay for F. Prime time upgrades for plats are tough.

DFW is hit and miss. Ive had success and I;ve been way back on the list.