Hi,

I will be making a lot of DTW-SEA round trips (no saturday night stay), and noticed that for some reason the pricing on a four-legged DTW-SEA-DTW-SEA-DTW ticket is a lot better than buying two separate round trips.

If NWA lets me buy one ticket like this, I'd assume it's legit and that I will get all the FF miles, but I wanted to be sure: is this kosher?