Some years ago, I found topographical strip maps for popular airline routes in a bookshop in Boulder CO.
Unfortunately, none of those in stock covered the routes that would have been of interest to me so my attention moved to something else.
I've done a couple of searches to see if they are still available but without success.
However, I did find a scholarly work which might be of interest:
A Linear View of the World: Strip Maps as a Unique Form of Cartographic Representation (PDF)
If any US Dwellars know the map series I mentioned, please would you let me know details of the publisher, etc?