American College Of Surgeons - Inspiring Quality: Highest Standards, Better Outcomes

Air Travel

Book Your Flight Early!

The American College of Surgeons (ACS) has arranged special meeting discounts on United Airlines. These special discounts are available by booking with United directly (independently or through a travel agent). Be sure to reference the ACS Z Code and Agreement Number below to obtain the special fares.

United Airlines

Monday–Friday: 7:00 am–9:00 pm (CST)
Saturday–Sunday: 8:00 am–6:00 pm (CST) 

Z Code: ZXE5
Authorization Number: 447067

Purchase your ticket online at and receive a discount off the lowest applicable fares. When booking online, please enter ZXE5447067 to receive your discount.