I travel in Athleta pants almost exclusively. It really just depends on how heavy/light you want the pants.
Brooklyn Ankle Pant: Lightweight and looks decent enough for business travel.
https://athleta.gap.com/browse/product.do?pid=19867100
Cabo Linen: Lightweight for those trips in the heat of summer where you want coverage:
https://athleta.gap.com/browse/product.do?pid=447244042
Cargo pants:
https://athleta.gap.com/browse/product.do?pid=988133002
Wide leg: I travel most in earlier versions of these:
https://athleta.gap.com/browse/product.do?pid=657665002
And I'm not including all the joggers that are options as well.