Click on the links to "Enjoy The ride" to all sorts of interesting places.
American Express Travel has helped me travel the world over the years. This is hands down my favorite travel site.
Southwest Airlines is efficient, reasonably low cost airline with a lot of shorter hobs to smaller cities and airport, but some large cities as well.
American Airlines has a hub in Phoenix, so I frequently end up on American.
Delta Airlines has a hub in Phoenix, so I frequently end up on Delta.
British Airways with its non-stop to London from Phoenix is one of my favorite ways to get to Europe. It is a very civilized way to travel.
FlightArrivals.com is a website that can track just about any airline flight and give you statuses, gates, airplanes, seating, etc. Useful if you are in the air a lot.