Originally Posted by
53flyer
I have cleared the waitlist multiple times on a Y/B/M fare using SWU's. It's a crapshoot, but it does work on occasion. Seeing as you already bought your M fare ticket just sit tight and wait. The recent change to allow same-day upgrades will also improve your odds.
I agree. To Europe from MSP, I have had some clear, others not. Although, I think my odds in a crapshoot are better
As for the same day upgrade - that's a fiasco. Tried to do that AMS->MSP last week -> seats were available - but check-in/gate staff were KLM -> so from a computer perspective - it was impossible (KLM's systems didn't allow them to do it.) Another example of Delta promising a benefit..and due to systems issues with them and their ST partners - it can't be fulfilled. In the OP's case however, it might be OK as the UG is sought from a domestic station.