The introduction of overseas service to General Lyman Field initially met with success. Joining United Airlines and Pan American World Airways in providing nonstop and direct service to Hilo from the west coast and other locations in the U.S. were Braniff International Airways, Continental Airlines, Northwest Airlines and Western Airlines. In 1968, Northwest was operating Boeing 707-320C jet service nonstop to Hilo from Seattle (SEA) twice a week with this flight also providing direct, no change of plane service from New York JFK Airport (JFK), Philadelphia (PHL), Cleveland (CLE) and Chicago O'Hare Airport (ORD). In 1969, United was operating daily nonstop flights from Los Angeles (LAX) and San Francisco (SFO) with Douglas DC-8 jets including stretched Super DC-8-61 jetliners with direct, no change of plane Super DC-8 service being flown daily to Hilo from Chicago O'Hare Airport (ORD) and Boston (BOS) via LAX while Pan American (Pan Am) was flying daily nonstop Boeing 707 service from Los Angeles (LAX) with 707 flights also being operated three days a week nonstop from San Francisco (SFO) and two days a week nonstop from Seattle (SEA) with this latter flight originating at Portland (PDX). Also in 1969, Braniff was operating Boeing 707-320 jet service with weekly nonstop flights from Dallas Love Field (DAL), Houston Hobby Airport (HOU) and St. Louis (STL) with the airline also operating direct one-stop 707 service once a week to Hilo from Atlanta (ATL), Miami (MIA) and New Orleans (MSY). By 1971, Continental was flying Boeing 707-320C jetliners nonstop from Los Angeles (LAX) with direct, no change of plane 707 service being operated from Denver (DEN), Kansas City (MCI), Portland (PDX) and Seattle (SEA) with flights from PDX and SEA making an intermediate stop in Honolulu.