Distance From Diepholz Air Base to Ontario International Airport

The distance from Diepholz Air Base () to Ontario International Airport (ONT) is 5625 miles or 9053 kilometers or 4885 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 Diepholz ( Germany ) to Ontario ( United States )?

A one-way nonstop (direct) flight between Diepholz and Ontario takes around 12 hours 55 minutes.

Estimated flight time from Diepholz Air Base, Diepholz, Germany to Ontario International Airport, Ontario, United States is 12 hours 55 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		9053 km
Statute Miles		5625 miles
Nautical Miles		4885 nm
Avg. Time of Flight		12 hours 55 minutes

Diepholz Air Base to Ontario International Airport Flight Route Map - to ONT Flight Path

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

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

Nonstop flight route between Diepholz, Germany and Ontario, United States.

Time Difference Between the Airports • - ONT

Time difference between Diepholz (Germany) and Ontario (United States) is 9 Hours.
Ontario time is 9 Hours behind Diepholz.

Location	Local Time
Diepholz (Germany)	2026-05-17, 11:31:29 CEST
Ontario (United States)	2026-05-17, 02:31:29 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

Diepholz Air Base ( / ETND) Diepholz, Germany

Destination

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