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Service details may change. Always confirm with providers before travel.
🚇 Public Transport near Ottawa Macdonald-Cartier International Airport
Public transport connections available at Ottawa Macdonald-Cartier International Airport.
OC Transpo
OC Transpo is Ottawa’s municipal public transit operator and provides multimodal service across the National Capital Region, including O‑Train light-rail lines and an extensive bus network. For Ottawa Macdonald‑Cartier International Airport (YOW) OC Transpo provides a direct O‑Train link (Line 4) to the terminal, overnight/night-bus coverage, and bus replacement services when trains are not running.
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🚍 Routes
O-Train Line 4 (Airport Link)
O-Train Line 4 (the Airport Link) is a short diesel light-rail line that provides a direct, frequent connection between Ottawa Macdonald‑Cartier International Airport (Island Terminal/Departures level) and South Keys Station (connecting with Line 2). It serves Uplands (EY Centre area) between South Keys and the Airport and is designed for accessible, fast transfers to the broader O‑Train network.
R4 (Line 4 replacement bus service)
R4 is the designated replacement bus service that operates along the Line 4 corridor when O‑Train Line 4 is disrupted or out of service. R4 serves all Line 4 stations and provides a direct surface connection between South Keys, Uplands and the Airport to maintain continuity of service during rail outages or planned maintenance.
Route N98 (Night Route — Airport)
Night Route N98 provides overnight bus service to the Airport when O‑Train service is not running; it operates between the Airport and Hurdman (and is extended to Rideau when both Lines 1 and 4 are closed). N98 is part of OC Transpo's Night network and ensures 24-hour connectivity to/from YOW when rail service is closed for the night.
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