I don't have the time to read 12 pages of delta.com bugs to see how long this has been an issue. I have had this issue before, but this is my first time reporting it.

I was booking a specific flight schedule for a client on Delta metal, SFO-CVG-PVD on August 6, 2009.

I searched delta.com for the lowest coach and F fares for the particular schedule. The coach option came up, but the F option did not. So I went to nwa.com and I was able to find and book the F option there.

In my search today and in the past, it appears that delta.com sells more NWA metal F options, so if you want Delta metal F options, they're best booked at nwa.com.

So why don't the same options show up on both delta.com and nwa.com? Is this a glitch or is this intentional?

I also must commend nwa.com's booking engine before it goes away. It is much easier to book there, the fare basis codes are much clearer, and the Outlook calendar files are much more accurate and detailed than the Delta Outlook calendar files.