Icelandair Adds St. Louis with Four Weekly Flights (simpleflying.com)

Icelandair will begin seasonal service between Keflavik and St. Louis Lambert International Airport on May 14, 2027, operating four weekly flights through October 24 on a Boeing 737 MAX 8. St. Louis becomes the airline's 15th US gateway, joining existing routes that include British Airways to London and Lufthansa to Germany. The carrier is also cutting Detroit and Halifax, and adjusting frequencies on Chicago, Orlando, Seattle, Denver, Washington Dulles, and Portland.