Distance From Witherspoons Airport to Ontario International Airport

The distance from Witherspoons Airport () to Ontario International Airport (ONT) is 2663 miles or 4285 kilometers or 2313 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 North Haven ( United States ) to Ontario ( United States )?

A one-way nonstop (direct) flight between North Haven and Ontario takes around 6 hours 7 minutes.

Estimated flight time from Witherspoons Airport, North Haven, United States to Ontario International Airport, Ontario, United States is 6 hours 7 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		4285 km
Statute Miles		2663 miles
Nautical Miles		2313 nm
Avg. Time of Flight		6 hours 7 minutes

Witherspoons Airport to Ontario International Airport Flight Route Map - to ONT Flight Path

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

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

Nonstop flight route between North Haven, United States and Ontario, United States.

Time Difference Between the Airports • - ONT

Time difference between North Haven (United States) and Ontario (United States) is 3 Hours.
Ontario time is 3 Hours behind North Haven.

Location	Local Time
North Haven (United States)	2026-05-04, 18:59:24 EDT
Ontario (United States)	2026-05-04, 15:59:24 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

Witherspoons Airport ( / ME41) North Haven, United States

Destination

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