Originally Posted by
florin
I've recently used both EF and KVS. EF can NOT find DL awards, only UGs, so you can't really use it for that. KVS does work tho (although it doesn't have alerts, like EF does - you have to check yourself all the time).
That is correct, ExpertFlyer is the only source for DL upgrades and Flight Alerts. Delta.com is the only source for Delta award information, any service that claims to have DL awards is screen scraping the data from the Delta website, which is free to all.