A poster in another thread made me aware of the following discount on United.
http://www.usacycling.org/benefits/
It appears the annual fee is $60 and you can save up to 13% off fares with United on "certain domestic or international routes". Does anyone have any experience with this? Is the discount valid on most flights? Or only a small selection? Is it close to 13%, or does it differ dramatically?
How does it work - are you provided a promo code after joining?
Thanks!