The flight from Frankfurt am Main (FRA) to Houston (IAH) takes about 10h 19m nonstop on a widebody airliner, covering 5,221 miles (8,402 km).
Houston is 7 hours behind Frankfurt am Main. You cross 7 time zones heading west. Westbound trips like this one are usually a little easier to adjust to, so plan for a day or two of jet lag.
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