Originally Posted by
Winkdaddy
I know this isn't much of a help, but multi-city ticketing (for both revenue and especially award tickets) has been horribly broken on Delta.com for a long time. Try searching Kayak.com advanced search multi-tickets....then clicking thru to Delta once you find what you are looking for...I have had better luck doing that then using Delta.com.
I had to do this 2 days ago for a multi city ticket. It wasn't bringing up all of the options on delta.com that I could find on kayak. I eventually found everything I wanted on kayak and then when it sent me over to delta I booked it. It ended up being cheaper then if I booked everything with one way tickets which doesn't make sense to me but I think kayak was finding LUT fares while delta was trying to make me buy and M fare.
The only bad part is that afterward using the kayak method I had to tweet @deltaassist to change my status from "upgrade eligible" to "upgrade requested". Not a big deal but you have to remember to do it.