This is a list of major airlines based in the Allied States which have an Air Operator Certificate issued by the Federal Aviation Administration of the Department of Transportation. In no particular order:
- Southwest Airlines - Dallas, Texas
- American Airlines - Fort Worth, Texas
- Oceanic Airlines - New Bay City, Texas
- AS Airways - Tempe, Apache
- Continental Airlines - Houston, Texas
- SkyWest Airlines - St. George, Apache
- American Eagle Airlines - Fort Worth, Texas
- Virgin America - Berlingame, San Andreas
- Allegiant Air - Enterprise, San Andreas
- Trans States Airlines - Bridgeton, Kansas
- Mesa Airlines - Phoenix, Apache
- Lynx Aviation - Denver, Rocky State
- Great Lakes Airlines - Cheyenne, Rocky State
- GoJet Airlines LLC - Brigeton, Kansas
- ExpressJet Airlines - Houston, Texas
- Pacific Wings Airlines - Dallas, Texas