I recently booked a non stop trip from NYC to Europe through my travel agent at a very low price and it was ticket by Delta. About a week later I got a letter from him saying that Delta changed the flight on the outward leg to a connection flight thru another US hub. The other flight was not changed. The new departure is about 4 hours earlier but the arrival time is about the same.

I did a check and saw that the original nonstop flights were still available but now were appreciably higher priced. I am sure that my change was done because the airline would like to sell my seat at a higher price. Can they do this? Isn't a ticketed reservation something that is a final deal when the flight is not cancelled?

If anyone has had a similar experience, I would appreciate hearing how they handled this.