MeWantMoreMiles, If you ever have questions give me an email since I am also based out of OMA. I don't do alot of flights on NWA but do some but I try to keep track of the specials. It is possible to find multistop connections but it is a little harder from OMA. I have been looking at asia trips on UA but keep seeing cheap NWA flights to asia and also to europe. You would probably have to miss either some fridays or mondays but you could pretty quickly rack up some miles.
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Robert