Currently, as of February 15th 2012, they do not.
300Km
about 27 minutes
4 hours
Depends where
4-5 hours.
British Airways fly direct from Houston to London(Heathrow) Air France fly direct from Houston to Paris(Charles De Gaulle) KLM fly direct from Houston Amsterdam(Schipol) Lufthansa fly direct from Houston Frankfurt(Int) Continental flys nonstop to Frankfurt Amsterdam Paris London
About 19 hours.
as long as it takes for......
Im a flight attendand and a flight from dallas to Houston shouldn't take more than 45 minutes. According to Expedia, the flight time is between 1hr and 1hr 10mins
The distance from Dallas to Houston is 356 Kilometers.
It would take three hours to fly from Dallas to Belize city.