- Very High Potential
- Pittsburgh-Cleveland
- Cincinnati-Columbus-Cleveland
- Indianapolis-Columbus-Pittsburgh
- Dallas-Houston
- High Potential
- Philadelphia-Scranton
- Philadelphia-Atlantic City
- New York-Allentown
- St. Louis-Indianapolis
- Cincinnati-Dayton-Toledo-Detroit
- Cincinnati-Nashville-Mobile-New Orleans
- Kansas City-Wichita-Oklahoma City-Ft. Worth-Dallas
- Moderate Potential
- Boston-Portland
- Boston-Montreal
- Boston-Quebec
- Scranton-Binghamton-Syracuse
- Buffalo-St. Thomas-Detroit
- Norfolk-Roanoke
- Norfolk-Raleigh-Greensboro
- Chicago-Detroit-Toronto
- Chicago-Grand Rapids
- Detroit-Grand Rapids
- Indianapolis-Louisville
- Jacksonville-Pensacola-Mobile
- Greensboro-Charlotte-Savannah
- Memphis-Nashville
- Nashville-Atlanta-Macon-Savannah
- Atlanta-Montgomery
- Memphis-Little Rock-Dallas
- Ft. Worth-Dallas-Shreveport-New Orleans
- St. Louis-Tulsa-Oklahoma City
- St. Louis-Memphis
- Minneapolis/St. Paul-Grand Forks-Winnipeg
- Kansas City-Omaha
- Tulsa-Kansas City
- Kansas City-Denver
- Ft. Worth-Dallas-Midland-El Paso
- San Antonio-Monterrey-Mexico City
- Denver-Albuquerque
- Vancouver-Seattle
- Sacramento-Fresno-Los Angeles
- Low Potential
- Portland-McAdam-St. John
- Roanoke-Cincinnati
- Norfolk-Savannah
- Phoenix-Flagstaff-Albuquerque
- El Paso-Albuquerque
- Dallas-Ft. Worth-Amarillo-Denver
- Minneapolis/St. Paul-Fargo-Billings-Seattle
- Denver-Billings-Great Falls-Calgary
- Salt Lake City-Butte-Great Falls-Calgary
from: Planned Growth for Profitability - Tactics
See also Figure 6, Market Potential of Existing Network.