Flight International Thurgood Marshall Airport departs from Baltimore International Thurgood Marshall Airport at 19:22 and arrives at Houston George Bush Intercontinental Airport at 21:36.
The flighttime is about 3h 14m. The distance travelled ("as the bird flies"): 2071 Km. So the average speed is roughly 641 Km.
There is an 1 hour time difference between Baltimore and Houston