Right at the bottom of this page is "Forum Jump", which lets you scroll through the various forums and click on the one that seems closest to your issues.
At the top is "Search" which can help you find specific topics wherever they may be.
But I'd seriously suggest searching the web first for info. For routes and general flight info, a simple "flight cityA cityB". Or ITA Matrix (
http://matrix.itasoftware.com). Or any of the specific airline web sites. Or the more general ones like
www.kayak.com and
www.expedia.com. Or ...
For airports search "airport cityname".
People are really willing to help here if it is clear the requestor has already put some effort into the issue.
And when you've done a bit of outside research and then found what you think is the appropriate forum, take a couple minutes and read through any "stickies" at the beginning of the forum. A surprising amount of general information in those.
Romelle