Originally Posted by TheBOSman

As long as it didn't expire due to a fare booking restriction (i.e. 7 day advance purchase fare, hold started on the 7th day before the flight until the 6th day before and you didn't try to buy until the 6th), yes. I've learned when good deals pop up to put multiple dates on hold and then try to work out other details before committing to any of them.

Originally Posted by newyorkgeorge

If for example the fare would expire today (June 11) then no the hold will not honor the fare if it increases. However, some FTs have said they have called web services and got the fare reinstated.