I looked at BA's list of AA codeshare cities in the US and my interest was piqued ... how does BA determine which cities it will put its code on?
For example, in Texas, BA puts its code on AA flights to Austin, El Paso, Houston, McAllen, and San Antonio (which is understandable), but also on AAEagle flights to Killeen, Tyler, San Angelo, Midland/Odessa, and Wichita Falls. I grew up in a small Texas city, and I know (with all due respect) that these cities don't produce a lot of traffic to the UK. If BA serves these cities, why not Amarillo, Lubbock, Abilene, Waco, Corpus Christi, Laredo, Longview, or Texarkana (most of which are larger markets than the above codeshare cities)?
Just curious ... I find codeshares a very interesting subject, so I'd like to get some input.