If you zoom in to the smallest extent, it will become visible. However, the airport name text is dynamically positioned, so selecting the flights out of Ontario will cause the text "Los Angeles" to move, enabling you to select SNA. It might be easier to just put SNA into the search window.

I do like how you can change the setting for the colors of the different objects (like differentiating between direct and connecting flights). However, what is "Branch Policy" in the general settings category?

Some improvements (since I make web mapping applications):

• the scroll wheel on the mouse should allow zooming in and out in the map and scrolling through the results listing. The zooming should also be where the mouse is positioned, not just the center of the map.
• if you click on a flight route line, it should be highlighted in the results listing
• is there a way to remember the settings between sessions?