Niagara District Airport
St Catharines, CanadaYCM / CYSN
Regional airport · 5 direct destinations · 3 runways · longest runway 5,000 ft
55 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
St Catharines → Buffalo
YCM
St CatharinesNiagara District Airport
St CatharinesNiagara District AirportBUF
BuffaloBuffalo Niagara International Airport
BuffaloBuffalo Niagara International Airport- Distance
- 28 mi
- Estimated flight time
- ~35m
Same local time in St Catharines and Buffalo.
No nonstop connection observed
Our route data contains no observed nonstop flight from St Catharines to Buffalo. That does not rule out a one-stop journey; see the direct destinations of St Catharines for the options.
About this route
- International route: St Catharines and Buffalo are in different countries.
- Direct destinations observed from St Catharines: 5.
- Direct destinations observed from Buffalo: 62.
The airports on this route
Buffalo Niagara International Airport
Buffalo, United StatesBUF / KBUF
Regional airport · 62 direct destinations · 2 runways · longest runway 8,829 ft
54 °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.
YCM IAGNiagara Falls International AirportNiagara Falls is about 16 mi from Buffalo.View route →YTZ BUFBilly Bishop Toronto City AirportToronto is about 32 mi from St Catharines.View route →YYZ BUFToronto Pearson International AirportToronto is about 40 mi from St Catharines.View route →YCM YTZBilly Bishop Toronto City AirportToronto is about 58 mi from Buffalo.View route →
About the route from St Catharines to Buffalo
The distance between Niagara District Airport (YCM) and Buffalo Niagara International Airport (BUF) is approximately 28 mi; no direct connection has been observed in our route data.
Frequently asked questions about this route
- How far is St Catharines from Buffalo by air?
- The great-circle distance between Niagara District Airport and Buffalo Niagara International Airport is approximately 28 mi.
- Is there a direct connection from St Catharines to Buffalo?
- No direct connection between YCM and BUF 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 Buffalo?
- Same local time in St Catharines and Buffalo.
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.