Distance From Copenhagen Kastrup Airport to Ontario International Airport, CPH - ONT Distance

The distance from Copenhagen Kastrup Airport (CPH) to Ontario International Airport (ONT) is 5583 miles or 8985 kilometers or 4849 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 Copenhagen ( Denmark ) to Ontario ( United States )?

A one-way nonstop (direct) flight between Copenhagen and Ontario takes around 12 hours 50 minutes.

Estimated flight time from Copenhagen Kastrup Airport, Copenhagen, Denmark to Ontario International Airport, Ontario, United States is 12 hours 50 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 • CPH - ONT

Kilometers		8985 km
Statute Miles		5583 miles
Nautical Miles		4849 nm
Avg. Time of Flight		12 hours 50 minutes

Copenhagen Kastrup Airport to Ontario International Airport Flight Route Map - CPH to ONT Flight Path

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

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

Nonstop flight route between Copenhagen, Denmark and Ontario, United States.

Time Difference Between the Airports • CPH - ONT

Time difference between Copenhagen (Denmark) and Ontario (United States) is 9 Hours.
Ontario time is 9 Hours behind Copenhagen.

Location	Local Time
Copenhagen (Denmark)	2025-12-16, 19:18:49 CET
Ontario (United States)	2025-12-16, 10:18:49 PST

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

Copenhagen Kastrup Airport (CPH / EKCH) Copenhagen, Denmark

Destination

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