between 20 and 21 hours
how long would it take to drive from san antonio, Texas to Boston, Massachusetts
MapQuest gives the estimated driving time as 20 hours and 15 minutes.
It is 1,565 miles and an estimated driving time of 24 hours according to Google Maps.
I don't understand what "at" is.
2-4 hours
It is 277.70 miles according to MapQuest.
4 hours
About eight hours.
About 2 hours 15 minutes
771 miles
1 and half hours - 2 hours