Mileage Run Discussion - Finding % of air traffic per airline at an airport

Okay, so I'm not sure if this is in the right forum, but here goes. Farecast used to have an area on their website where you could find out how much of the traffic was used by a particular airline. For example, XYZ airport might have 24% UA, 43% NW, 15% AA, etc.

Farecast is now apparently bing, and I'd like to find this information out.

I think I'm moving to OMA, am currently Gold with AA, and would like to know if it's worth it to do an MR to keep it or jump ship to another program.

The Bureau of Transportation Statistics has this data, the link to the OMA data is here:

http://www.transtats.bts.gov/airports.asp?pn=1&Airport=OMA&Airport_Name=Omaha, NE: Eppley Airfield&carrier=FACTS

WN is 27%, UA is 17%, AA is 9%

Thanks!