Codes Used to Upgrade (like NC NF)
In the past when I purchased economy tickets on United and wanted to immediately upgrade to business class, I could find the code NC and if it had a number next to it, I wouldn't have to be waitlisted. Today I found codes on the new website but it appears the codes have changed. Can someone tell me what codes to look for to immediately upgrade to business class? I called customer service but was disconnected three times. Thanks.