Trans-Texas Airways (TTa) and successor Texas International Airlines flew to the following cities in 1949 through 1982. This information is taken from Trans-Texas Airways and Texas International Airlines timetables referenced below.

Alabama

Arizona

Arkansas

California

Colorado

Connecticut

Florida

Louisiana

Maryland

Minnesota

Mississippi

Missouri

Nebraska

Nevada

New Mexico

Ohio

Oklahoma

Tennessee

Texas

Utah

Virginia

Wisconsin

Mexico

References

The above is taken from the following Trans-Texas Airways and Texas International schedules and route maps: