I just recently discovered that Google has a handy flight tool for checking airfare from multiple airports (5 max) for both departing and arriving. I used to spend a lot of time jumping around to various airline and travel websites trying to find the best deal. Once you find a deal Google will then link you directly to the airlines website. The only airline that doesn't appear to show up in the search that I've noticed is Southwest.
vaboywnder,
Great advice and information. Had no idea you could do this. Would have come in handy with my recent problems with United. Had not flown them in years and now I know why. Sadly, I have to take the same commuter flight on Thursday of this week.