Distance From Grenora Centennial Airport to Ontario International Airport

The distance from Grenora Centennial Airport () to Ontario International Airport (ONT) is 1228 miles or 1976 kilometers or 1066 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Grenora ( United States ) to Ontario ( United States )?

A one-way nonstop (direct) flight between Grenora and Ontario takes around 2 hours 49 minutes.

Estimated flight time from Grenora Centennial Airport, Grenora, United States to Ontario International Airport, Ontario, United States is 2 hours 49 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - ONT

Kilometers		1976 km
Statute Miles		1228 miles
Nautical Miles		1066 nm
Avg. Time of Flight		2 hours 49 minutes

Grenora Centennial Airport to Ontario International Airport Flight Route Map - to ONT Flight Path

Location of Grenora Centennial Airport & Ontario International Airport is given below.
Click the map to view Grenora to Ontario nonstop flight path and travel direction.

Click to see flight route on Google Map between Grenora, United States and Ontario, United States. .

Nonstop flight route between Grenora, United States and Ontario, United States.

Time Difference Between the Airports • - ONT

Time difference between Grenora (United States) and Ontario (United States) is 2 Hours.
Ontario time is 2 Hours behind Grenora.

Location	Local Time
Grenora (United States)	2026-03-20, 19:12:14 CDT
Ontario (United States)	2026-03-20, 17:12:14 PDT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Grenora Centennial Airport ( / 7N6) Grenora, United States

Destination

Ontario International Airport (ONT / KONT) Ontario, United States