Originally Posted by
DC-USCP-UAPE
Last year I was only able to upgrade 20% of the time. I'm a 1K based in Washington, DC. I've chalked it up to bad luck and am hoping 2008 is my year!

20% for 1K? too bad
Mostly UA can use either A319/320 or B757 for transcon flights. If the load favors the former, A319 is more likely since it outnumbers A320 in Ua fleet, as the majority of UA's A320s are now operated as TED.