I was doing a reward flight search for Birmingham, AL to LIS. I guessed at the Birmingham, AL airport code as BMG and was presented with an error message that says CO does not serve BMG (Bloomington, IN). I then entered "Birmingham, AL" and CO.com asked me to clarify Birmingham, AL or Birmingham, UK...no problem (even though it ignored the Alabama part), I selected BHM (Birmingham, AL). It then returns me to the flight screen but displays "One pass elite members may receive better search results if signed in". Once again no problem I click the highlighted Sign In text and CO.com logs me in. CO.COM then returns me to the search results screen reporting that Bloomington, IN is not served by it or any of its partners. I am back to square one and have to now re-enter all of the BMH information again.

Not a big deal...but aggravating.