St. John's International Airport — St. John's, Canada

St. John's International Airport, known by the code YYT, occupies high ground within the city of St. John's, Newfoundland and Labrador, making it the easternmost major airport on the North American mainland's edge. Frequent fog and strong Atlantic winds shape daily operations more than at most Canadian fields, a legacy of the peninsula's exposed position. Today the airport serves as a base for PAL Airlines and Provincial Airlines, with Air Canada, WestJet, and seasonal transatlantic service from Air Transat rounding out the schedule. Helicopters bound for offshore oil platforms such as Hibernia and Terra Nova also operate from the field, linking crews to installations far out in the North Atlantic. A modern terminal completed in 2011 replaced the aging original building, improving capacity for a city whose air links matter enormously given its remote, storm-exposed geography.