Flying Blind - [s6e10]

If you were referring to a different series or medium, "Flying Blind" is also a common title for aviation-related documentaries and investigative reports:

With absolutely no flight experience , Carl and Urkel must overcome their panic and work together to attempt a dangerous emergency landing. Alternative "Flying Blind" Media [S6E10] Flying Blind

Carl and Urkel are traveling to Detroit on a chartered airplane. If you were referring to a different series

Carl realizes the pilot is a vindictive ex-convict whom he personally arrested and helped send to prison years earlier. [S6E10] Flying Blind

Seeking revenge, the pilot decides to bail out of the plane mid-flight, leaving the two passengers stranded in the air.