Differences Between FAA Part 91, 121, and 135 in Aviation
Pilot Institute
FEBRUARY 26, 2025
Think of regional and major airlines such as Delta, Southwest, American, SkyWest, and large cargo aircraft operated by FedEx or UPS. One of the most notable distinctions between parts 121 and 135 is the requirement for two pilots on a part 121 operation vs. the allowance for one pilot on a part 135 operation.
73 
Let's personalize your content