Cascade Airways - February, 1981

What's interesting about this timetable is that Cascade partnered with twelve other airlines. Founded in 1969, it operated for 17 years and shut down in 1986.

Plus, check out the "Volcano Fares." Who knew?

https://en.wikipedia.org/wiki/Cascade_Airways
http://www.cascadeairways.net

Hughes Airwest - January, 1978

There are two good resources for those who wish to learn more about Hughes Airwest.  As usual, Airliners.net has a good thread here, and here's an excellent tribute website.  Interestingly, Hughes is now a part of Delta Air Lines, via Northwest and Republic.