Ottawa Macdonald-Cartier Airport (YOW) — The Complete Master Guide 2026
Ottawa Macdonald-Cartier International Airport sits roughly 11 km south of downtown Ottawa in the Uplands area, and is the federal capital’s primary gateway. The big 2026 fact is the rail link: O-Train Line 4 (Airport Link) opened on 6 January 2025, connecting YOW to downtown Ottawa via Line 2 (Trillium) and Line 1 (Confederation) in 35-45 minutes for CAD 4.10. US Customs and Border Protection runs full preclearance on the…