Make sure you request a ConnectFirst fare the next few times you fly Northwest and you could be reclining in first class — not to mention 20,000 bonus miles richer. The crux of the promotion is in the connecting. When you fly one connecting roundtrip or two nonstop roundtrips on a ConnectFirst fare by June 30, you will earn 5,000 bonus miles. Then, earn an additional 15,000 bonus miles when you fly a second connecting roundtrip or four additional segments on a ConnectFirst fare during the same period. WorldPerks members must register for the promotion prior to June 15 by calling (888) 955-7878 and entering 2030.