The calculated distance (air line) between Yonge-Eglinton and Mississauga is approximately 15 miles respectively 25 kilometers.
By car or train, the actual journey to Mississauga is certainly longer, as only the direct route (as the crow flies) between Yonge-Eglinton and Mississauga has been calculated here.
Air line (approximately)
25 kilometers
13 nautical miles