Flight distance is approximately 399 miles 642 km and flight time from Laredo TX to Dallas TX is 48 minutes. American Airlines flies from Laredo to Dallas 4 times a day. Laredo Climate Average Weather Temperature Precipitation Best Time The driving distance is 428 miles. How far is laredo tx from dallas tx . This is the fastest route from Laredo TX to Dallas TX. Flight distance is approximately 399 miles 642 km and flight time from Dallas TX to Laredo TX is 48 minutes. 430 miles or 692 km Driving time. Alternatively Greyhound USA operates a bus from Laredo to Dallas twice daily. American Airlines and United Airlines fly from Dallas to Laredo Airport LRD every 4 hours. With the route we propose it will take approximately 10h 5m plus the time it takes to you to make. The total straight line flight distance from Laredo TX to Dallas TX is 398miles. Driving distance from Laredo TX to Dallas TX is 441 miles 710 km. Tickets cost 45 - 65 and the journey takes 7h 55m. ...