In June 1926 it took 6+1⁄2 hours each way, leaving Houston at noon and Dallas at 1:25 p.m.; in August 1937 it scheduled fifteen regular and flag stops in the 6+1⁄2-hour run.

In August 1938 the streamlined Hustlers left Houston and Dallas at 8 a.m. and arrived at their destinations at 2 p.m., having made most local stops along the way.

[3] With the advent of T&NO/SP's Diesel locomotive fleet after World War II, ALCO PAs were often assigned to the Sunbeam.

[4] The Hustler was discontinued on August 11, 1954, and the Sunbeam received a new schedule that allowed it to depart Houston's Grand Central Station in the morning and return from Dallas in the afternoon, now using just one set of equipment instead of two.

The new schedule lasted only thirteen months, and the Sunbeam made its final round trip on September 11, 1955.