“What kind of pizza do pilots like?”/“Plain.”

Plain pizza has its own classic joke:
 
“What kind of pizza do pilots like?”
“Plain.”
 
The joke has been cited in print since at least 2008.
 
     
napoleonherself
darnn on January 13th, 2008 01:49 am (UTC)
(...)
How do pilots like their pizzas?
Plain.
   
Jokesareawesome.com
January 27, 2009
[joke #392]
What kind of pizza do pilots like? Plain.
   
Twitter
Hourly Facts
‏@factstorm
What kind of pizza do pilots like? Pla…-  What kind of pizza do pilots like? Plain. http://bit.ly/BbMoy
12:15 PM - 9 Jul 2009
 
Facebook
Nicollettis Pizza
December 6, 2013 ·
Q. What kind of pizza do pilots like?
A. Plain.
 
Twitter
Monicals_Pizza
‏@Monicals_Pizza
#TellAnOldJokeDay What kind of pizza do pilots like? Plain #monicals
12:35 PM - 24 Jul 2014