Yes they are, they don't fly international
Hobby is mostly for domestic flight and bush is international and domestic Bush Hub is United Airlines and hobby airport is Southwest Airlines
Southwest airlines
United/Continental Delta Southwest US Airways
A domestic airline is an airline that operates solely within one country. Such as Southwest Airlines, which only operates in the United States.
Southwest airlines
WN SOUTHWEST AIRLINES (U.S.A.) 526
China Southwest Airlines ended in 2002.
No, Southwest Airlines originated in Texas in 1971.
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Yes they do.
southwest
Effects of increased no of domestic airlines