I have 16,000-20,000 miles in each of Delta's Skymiles, NWA's WorldPerks, and United's Mileage Plus programs. Is there anyway to get them combined into one program? Hopefully Northwest WorldPerks?
The simple answer for your particular situation is NO. You're not going to be able to combine all three of those sets of miles and magically get ~50-60 thousand miles total.
(By the way, is your handle Spanish?

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