Ottawa to St. Catharines flights
St. Catharines lies 376 km (234 mi) south-west of Ottawa, in the same time zone. What the numbers say about getting there, and where to book.
A nonstop flight would take about 1 h 14 min gate to gate, based on the distance and typical cruise speed with taxi and climb allowed for; connecting itineraries add the layover on top.
Open St. Catharines in Google Maps
| Ottawa | St. Catharines | |
|---|---|---|
| Country | Canada | Canada |
| Population | 1 million | 136,803 |
| Elevation | 71 m (233 ft) | 102 m (335 ft) |
| Time now | UTC-4 (America/Toronto) | UTC-4 (America/Toronto) |
| Nearest large airport | YOW, 10 km out | BUF, 49 km out |
Airports at each end
Leaving Ottawa
Ottawa is served by 5 airports with scheduled flights within 100 km. The closest large one is Ottawa Macdonald-Cartier International Airport (YOW), 10 km (6 mi) from the centre, whose 10,000-ft runway is long enough for long-haul wide-body aircraft. The alternatives are Ottawa / Rockcliffe Airport (YRO, 7 km), Ottawa / Gatineau Airport (YND, 16 km), Ogdensburg International Airport (OGS, 83 km), Massena International Airport Richards Field (MSS, 85 km).
Arriving in St. Catharines
St. Catharines is served by 6 airports with scheduled flights within 100 km. The closest large one is Buffalo Niagara International Airport (BUF), 49 km (30 mi) from the centre, with a longest runway of 8,829 ft, which limits it to short and medium-haul aircraft. The alternatives are John C. Munro Hamilton International Airport (YHM, 56 km), Toronto Pearson International Airport (YYZ, 64 km), Niagara District Airport (YCM, 6 km), Niagara Falls International Airport (IAG, 25 km), Billy Bishop Toronto City Airport (YTZ, 52 km).
| Airport | Code | From centre | Longest runway | Elevation |
|---|---|---|---|---|
| Buffalo Niagara International Airport | BUF | 49 km (30 mi) | 8,829 ft | 728 ft |
| John C. Munro Hamilton International Airport | YHM | 56 km (35 mi) | 10,006 ft | 780 ft |
| Toronto Pearson International Airport | YYZ | 64 km (40 mi) | 11,120 ft | 569 ft |
| Niagara District Airport (regional) | YCM | 6 km (4 mi) | 5,000 ft | 321 ft |
| Niagara Falls International Airport (regional) | IAG | 25 km (16 mi) | 9,826 ft | 589 ft |
| Billy Bishop Toronto City Airport (regional) | YTZ | 52 km (32 mi) | 3,988 ft | 252 ft |
Book a flight to St. Catharines
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Staying in St. Catharines
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Common questions
How far is St. Catharines from Ottawa?
376 km (234 mi) in a straight line, south-west of Ottawa.
How long does it take to get from Ottawa to St. Catharines by air?
About 1 h 14 min, estimated from distance and typical speeds for a nonstop flight. Timetables and traffic decide the real figure.
Is there a time difference between Ottawa and St. Catharines?
No, both are on America/Toronto at the moment.
Which airports are used for Ottawa to St. Catharines flights?
Typically Ottawa Macdonald-Cartier International Airport (YOW) to Buffalo Niagara International Airport (BUF); St. Catharines also has YHM, YYZ, YCM, IAG, YTZ.
Where these facts come from
- GeoNames (CC BY 4.0): population, elevation, time zone, postal codes
- Wikidata (CC0): area, sister cities, visitor numbers, heritage listings, stations and ports
- OurAirports (public domain): airports, runways
- Natural Earth (public domain): map outlines
Data compiled 14 September 2026. Hotel and hostel figures are from our booking partner’s catalogue on that date. Journey times on this page are estimates from distance, not timetables; check the operator before you rely on one.