Domestic airlines are local airlines and generally they only fly in local airspace (as opposed to international and intercontinental)
is some who live in the uk and go for holiday some whre in the uk but different from where they live.
A domestic airline is an airline that operates solely within one country. Such as Southwest Airlines, which only operates in the United States.
Skybus was until it closed last year... I use AirTran, it is always cheaper than anything else.
the biggest domestic airline would probably be American airlines and the biggest domestic airliner would be the 737-800ER
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