Altoona–Pittsburgh
Binghamton–Buffalo
Buffalo–Toronto
Chicago–Indianapolis
Chicago–St. Louis
Cincinnati–Chicago
Cincinnati–Louisville
Cleveland–Buffalo
Cleveland–Columbus
Cleveland–Pittsburgh
Cleveland–Toledo
Columbus–Cincinnati
Harrisburg–Altoona
Harrisburg–Williamsport
Indianapolis–St. Louis
Louisville–St. Louis
New York–Chicago
New York–Philadelphia
New York–Washington, D.C.
Philadelphia–Atlantic City
Philadelphia–Baltimore
Philadelphia–Erie
Philadelphia–Harrisburg
Philadelphia–Pittsburgh
Philadelphia–Reading
Philadelphia–Wilkes-Barre
Pittsburgh–Buffalo
Pittsburgh–Cleveland
Pittsburgh–Detroit
Pittsburgh–Erie
Pittsburgh–St. Louis
Reading–Harrisburg
Scranton–Binghamton
St. Louis–New York
Toledo–Chicago
Washington, D.C.–New York
Wilkes-Barre–Scranton
Williamsport–Erie