[7] In November 1949, it served Alpine, Beaumont/Port Arthur, Beeville, Brownsville, Brownwood, Carrizo Springs/Crystal City, Coleman, Dallas (Love Field), Del Rio, Eagle Pass, El Paso, Fort Stockton, Fort Worth, Galveston, Harlingen, Houston (Hobby Airport), Laredo, Lufkin, Marfa, McAllen, Palestine, San Angelo, San Antonio, Uvalde, Van Horn, and Victoria.

These cities included Albuquerque, Carlsbad, Clovis, Hobbs, Roswell, and Santa Fe in New Mexico as well as Abilene, Amarillo, Big Spring, College Station, Lubbock, Temple, and Waco in Texas.

Small Beechcraft C99 commuter turboprops were later added to serve the smaller cities of Longview, Lufkin, Galveston, Tyler and Victoria (the last DC-3 flight was in 1968).

When it changed its name to Texas International Airlines in April 1969,[15] the company ran newspaper ads showing a Tinker Toy airplane flying along treetops.

In 1970, Texas International served: Abilene, Amarillo, Austin, Beaumont/Port Arthur, Big Spring, Brownwood, Bryan/College Station, Corpus Christi, Dallas/Ft.

[16] Outside of Texas in 1970, Texas International flew to Arkansas (El Dorado, Hot Springs, Jonesboro, Little Rock, Pine Bluff and Texarkana); California (Los Angeles); Colorado, (Denver); Louisiana (Alexandria, Baton Rouge, Fort Polk, Lafayette, Lake Charles, Monroe, New Orleans and Shreveport); Mississippi (Jackson); New Mexico (Albuquerque, Carlsbad, Clovis, Hobbs, Roswell and Santa Fe); Tennessee (Memphis); and Utah (Salt Lake City).

Worth, Houston, and Beaumont/Port Arthur, before arriving in Lafayette at 8:34 p.m.[17] After suffering annual losses of up to $3 million, Texas International was acquired in 1972 by Jet Capital Corporation headed by 32-year-old Frank Lorenzo.

The airline quickly realized a $6 million profit, largely due to wage cuts spearheaded by Lorenzo and sharp marketing efforts.

In the mid-1970s, in response to competition from Southwest Airlines, Texas International successfully petitioned the Civil Aeronautics Board to allow discounted fares.