Origin	Destination	# Passengers
Laredo	San Antonio	15000
Laredo	Austin	20000
Laredo	Dallas	5000
Laredo	Houston	4000
San Antonio	Laredo	12000
San Antonio	Austin	10000
San Antonio	Dallas	8000
San Antonio	Houston	7000
Austin	Laredo	19000
Austin	San Antonio	9000
Austin	Dallas	14000
Austin	Houston	9000
Dallas	Laredo	3000
Dallas	San Antonio	7000
Dallas	Austin	15000
Dallas	Houston	16000
Houston	Laredo	2000
Houston	San Antonio	6000
Houston	Austin	10000
Houston	Dallas	16000