Hmmm . . . if the tweet that was last posted in the "Live Sightings" thread is to be believed, and teams are on their way to Nunavut, then this is their route:
Fri. May. 27 Quebec, QC to Iqaluit, NU
Quebec (YQB) to Montreal (YUL)
Air Canada 8701operated by /AIR CANADA EXPRESS - JAZZ
Economy / Coach Class ( S), Dehavilland Dash 8-300
Depart 6:00am Arrive 6:52am
Duration: 0h 52m
Layover: Montreal (YUL) 0h 53m
Montreal (YUL) to Ottawa (YOW)
Air Canada 7727operated by /AIR CANADA EXPRESS - JAZZ
Economy / Coach Class ( S), Dehavilland Dash 8-100
Depart 7:45am Arrive 8:26am
Duration: 0h 41m
Layover: Ottawa (Macdonald-Cartier Intl.) 0h 49m
Ottawa (YOW) to Iqaluit (YFB)
First Air 860
Economy / Coach Class ( A), Boeing 737-200
Depart 9:15am Arrive 12:25pm
Duration: 3h 10m
Total trip time: 6h 25m | 2,488 km
Looking at the Wikipedia page of Iqaluit, Nunavut's airport, it looks like Ottawa is the ONLY place (besides Winnipeg seasonally), that has flights to and from Iqaluit in southern Canada. All other flights are from Northern Communities.
I know we've established that Air Canada is the carrier of this race, but would they make an exception for places that can only be visited by flying a tiny airline?
EDIT: Looks like Montreal has a flight to/from Iqaluit as well according to the Wikipedia page, but it isn't showing up in searches for flights.