It is 600.08 miles accordiing to MapQuest.
It is 644.35 miles via Fort Worth, Wichita Falls and Amarillo according to MapQuest.
Amarillo is a city in Texas.
600 miles taking this route:Follow U.S. 287 SOUTH from Amarillo to I-45 SOUTH to CORSICANA in Ennis, which is about 35 miles south of Dallas.Take I-45 SOUTH to Houston.
60.3 miles
490 miles
334 miles
The great circle distance from Amarillo to Honolulu is about 3500 miles.
375 miles.
It is 705 miles.
725 miles
It is 240 miles according to Google Maps.
It is 650 miles according to Google Maps.