I'm taking on a new role with my company in the next few months. I'd like to have things together regarding airline travel. I'm currently a regional traveler. Most everything is done by car (company-provided) and I stay at Hilton properties. This new role will involve flights throughout the central and midwest US (Michigan to Texas). I will have direct flights to many locations from Louisville - Houston, Chicago, Dallas. However, that won't always be the case. Are there FF partner programs that allow me to roll into one package? With different airlines serving different cities in my territory, I'm not really certain the best approach here. Things that might matter - company provided AmEx for all charges plus airline and car rentals book through agency (I can use my own FF number).
If there is already a detailed post within the 141 pages of this thread, I'd appreciate a link to it. Thanks!