Me and my wife are scheduled to leave for HEL on vacation from October 16th, but a business trip has come up which necessitates my presence in PVG from October 12-19. Before calling Delta or doing anything stupid I wanted to ask you guys about my options since I do not have access to the fare rules or other detailed information. The tickets cost me just $2K each.

1. The best case scenario is if I could get my entire trip moved by a week. Is this possible to do so for a reasonable price with a Z class business fare?

2. Other options include my wife flying to HEL as scheduled and me joining her there after finishing my business trip. Is it possible for me to convert my current ticket into a one way (basically just leaving my return leg intact) without paying a arm and a leg?