The Lynx Buy One Get One FREE Promotion is going away! Until December 31, 2024, 511 Contra Costa is sponsoring a buy one, get one free promotion on 31-Day Lynx Passes ($140 value) even on a Clipper card. 31-Day Lynx Passes can be used on the Lynx Express Bus to San Francisco and ALL other WestCAT local route buses. To apply for your free pass, complete the 511 Contra Costa application available on our website by clicking the link below. Don't wait...HURRY! https://westcat.org/home/PromoBogoLynx