America, there are some very obscure airports that only very few people operate to, such as
-LaGuardia (takes some knowledge of geography and a rather early start)
-Burbank (its also LA, ya know?)
-Chicago Midway
-Charlotte (sometimes)
-Tampa
-Clearwater
-Spokane
-San Juan, Oakland, and San Diego (sometimes)
-Sacramento
-San Antonio
-Indianapolis
-Greensboro/Durham
-Nashville
-Memphis
-Richmond
-Louisville/Cincinnati/Columbus/Cleveland (all in a nice straight line)
-Des Moines
-Kansas City
-St. Louis
Just pull out google maps and do a quick scan.