How long does it take to fly from Houston Texas to London?

The flight time from Austin in the US to the nearest airport in Scotland (which is a large country) is approximately 9 hours and 18 minutes.

The approximate distance is 7476.42 km.
Which is approximately 7476.42 miles.

Re-ask the question giving an exact location in Scotland for a slightly more accurate answer.

Please note that the flight time and distance are approximate. Several factors such as weather conditions could affect either.