Niagara District Airport
St Catharines, CanadaYCM / CYSN
Regional airport · 5 direct destinations · 3 runways · longest runway 5,000 ft
55 °F · RainSource: METAR observation via the NOAA Aviation Weather Center
Route
St Catharines → Ottawa
YCM
St CatharinesNiagara District Airport
St CatharinesNiagara District AirportYOWOttawaOttawa Macdonald-Cartier International Airport
OttawaOttawa Macdonald-Cartier International Airport- Distance
- 227 mi
- Estimated flight time
- ~55m
Same local time in St Catharines and Ottawa.
No nonstop connection observed
Our route data contains no observed nonstop flight from St Catharines to Ottawa. That does not rule out a one-stop journey; see the direct destinations of St Catharines for the options.
About this route
- Domestic route: both airports are in the same country.
- Direct destinations observed from St Catharines: 5.
- Direct destinations observed from Ottawa: 56.
The airports on this route
Ottawa Macdonald-Cartier International Airport
Ottawa, CanadaYOW / CYOW
Major airport · 56 direct destinations · 3 runways · longest runway 10,000 ft
46 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
BUF YOWBuffalo Niagara International AirportBuffalo is about 28 mi from St Catharines.View route →YTZ YOWBilly Bishop Toronto City AirportToronto is about 32 mi from St Catharines.View route →YHM YOWJohn C. Munro Hamilton International AirportHamilton is about 38 mi from St Catharines.View route →YYZ YOWToronto Pearson International AirportToronto is about 40 mi from St Catharines.View route →
About the route from St Catharines to Ottawa
The distance between Niagara District Airport (YCM) and Ottawa Macdonald-Cartier International Airport (YOW) is approximately 227 mi; no direct connection has been observed in our route data.
Frequently asked questions about this route
- How far is St Catharines from Ottawa by air?
- The great-circle distance between Niagara District Airport and Ottawa Macdonald-Cartier International Airport is approximately 227 mi.
- Is there a direct connection from St Catharines to Ottawa?
- No direct connection between YCM and YOW has been observed in our route data. That does not rule out a one-stop journey.
- What is the current time difference between St Catharines and Ottawa?
- Same local time in St Catharines and Ottawa.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The flight archive of the last twelve months has nothing for this route, so we say nothing about frequency.
Route data updated on October 11, 2026.