Distance From Merck/Upper Gwynedd Heliport to Ontario International Airport

The distance from Merck/Upper Gwynedd Heliport () to Ontario International Airport (ONT) is 2347 miles or 3777 kilometers or 2039 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 Wales ( United States ) to Ontario ( United States )?

A one-way nonstop (direct) flight between North Wales and Ontario takes around 5 hours 23 minutes.

Estimated flight time from Merck/Upper Gwynedd Heliport, North Wales, United States to Ontario International Airport, Ontario, United States is 5 hours 23 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		3777 km
Statute Miles		2347 miles
Nautical Miles		2039 nm
Avg. Time of Flight		5 hours 23 minutes

Merck/Upper Gwynedd Heliport to Ontario International Airport Flight Route Map - to ONT Flight Path

Location of Merck/Upper Gwynedd Heliport & Ontario International Airport is given below.
Click the map to view North Wales to Ontario nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • - ONT

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

Location	Local Time
North Wales (United States)	2026-06-24, 17:18:54 EDT
Ontario (United States)	2026-06-24, 14:18:54 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

Merck/Upper Gwynedd Heliport ( / PN44) North Wales, United States

Destination

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