Originally Posted by
armagebedar
It can if you purchased a ticket under a certain fare and then JL publishes a discounted fare with more liberal conditions. Unusual but not unheard of.
Or the YQ drops. But in this case they will only refund you the difference if the first international sector is changed.
Another possibilities are weekday vs weekend, seasonality surcharge if your ticket now falls into the low season instead of peak season, etc