Hello passportvisaguru - I am glad to know of your expertise in this matter. A group of us will be leaving for Puerto Vallarta from 6/17/14- 6/24/14 from SFO. 2 passports are expiring on 9/30/2014 (ages 17 & 20). 2 other passports are expiring on Nov 8, 2014 (both 70+ years old). Will it be ok to fly on these dates to Mexico without having passport issues because these 4 passports within 3-6 months after travel dates. All else in Group are fine. Thanks for your expert input.