51.  Do they need to check in for a domestic flight an hour in advance, two hours, three?

52.  Dulles itself is a major airport for international and long-haul domestic flights.

53.  Flights to the Caribbean and London still are scheduled and domestic flights are unaffected.

54.  For example, the airlines successfully fought for years against matching bags with passengers on domestic flights as a way of deterring bombers.

55.  From there, a train or domestic flight can get you to Oslo.

56.  Haneda airport, which is closer to Tokyo and handles mostly domestic flights, is also expanding.

57.  In America, the biggest source of income is booking domestic flights.

58.  Included in the cost are all domestic flights, all meals and sightseeing.

59.  In-flight meals were pared, and the airline stopped giving passengers free newspapers on domestic flights.

60.  International flights have traditionally lower yields than domestic flights.