Here are some things that you should know about airlines:

Airlines do not want to tell you that within the hours after the first fare quoted, there will offer special flight, which are less expensive deal than the first fare.

Illegal connections are cheaper. Illegal connections are connecting flights that are usually less than 45 mins apart-too close for airlines to feel safe in making them connect. This will show in their computer that these flights are being routed.

If you want the best seat in the plane, pick up the seat over the wings, these are the most comfortable and smooth ride seats. If you want some silence,  try to avoid seats near the galley and rest rooms. For leg room, you can take the first row or seats that are near the emergency exits.