I am referring to real travel agents when I say yes in answer to your question, not to the desk drones that you road warriors think are travel agents, thus leading to the corporate community bashing "travel agents" needlessly. Commissions on air tickets were pulled in 2000, IIRC, and are slowly making a very limited, very quiet and date-restricted comeback, and generally only on high-bucket front cabin fares booked with non-USA-based carriers. Again, this answer does not account for provisions of any corporate contract out there.