Originally Posted by Seat 2A

Here are the final two questions. I'll provide answers tomorrow morning unless they're answered sooner...

21. I’ve found three U.S. airlines that still operate scheduled flights with the Lockheed Electra in the spring of 1986. Although each airline operates in different parts of the country, a common thread connects each of these airlines’ flights. Can you identify the three airlines and the similarity in their flights?
WHBM has identified Reeve Aleutian. We're still looking for two more scheduled operators plus the common thread between all three operations
HINT: The common thread was more about where they flew than what they flew... With the exception of Reeve, none of the routes were very long...