Sabena airliners which were augmented and later replaced by Douglas DC-6Bs. The DC-4s also restarted the airline's traditional route to the Belgian Congo. Sabena was the first airline to introduce transatlantic schedules from the north of England, when one of its DC-6Bs inaugurated the Brussels-Manchester-New York route on 28 October 1953. The Convair 240 was introduced in 1949 to partially replace the DC-3s that until then had flown most European services. As of 1956, improved Convair 440 "Metropolitan" twins began replacing the Convair 240 twins and were used successfully well into the 1960s between European regional destinations. In 1957, the long-range
Sun Country Airlines St. Louis, Belize and St. Kitts. The 2018 wave of expansions is part of a three-year expansion plan for the airline. The airline provides charter service for the United States Armed Forces. Sun Country maintains interline agreements with Icelandair, Condor, China Airlines as well as Emirates. The Sun Country Airlines fleet consists of Boeing 737 Next-Generation airplanes. Seasonally, additional aircraft are leased between Transavia and Sun Country. During its slow summer season, Sun Country occasionally leases planes to Transavia and during Transavia's slow winter season, the airline leases planes to Sun Country. On the weekend of April 14-15, 2018, an