There's not a lot anymore. A lot of carriers have dropped their "tags" from a more major city (LH KL etc etc etc) in favour of codes on their partners and given the more leisure oriented traffic on the route, the remaining carriers flying in there have reduced frequency/capacity.
You may find it more advantageous to get to somewhere like SIN KUL BKK and use any number of the new LCC's that are running around and get confirmed seats into/from DPS. Air Asia, Tiger, Jetstar etc all have the usual "$20" each way type fares.
Am not sure if they still do it, but Air Mike (Continental Micronesia) did GUM-DPS if that's an option.