What is the flight distance between DEN and ONT?

Distance between Denver International Airport (DEN) and Ontario International Airport (ONT) is 1316 kilometers or 818 miles.

Distance From Denver International Airport to Ontario International Airport (DEN - ONT Distance)

Q: How long is the flight from DEN to ONT?

Flight time from Denver International Airport, Denver, United States to Ontario International Airport, Ontario, United States is 1 hours 38 minutes under avarage conditions.

Q: What is the time difference between Denver, United States and Ontario, United States?

Time difference between Denver (United States) and Ontario (United States) is 1 Hours. Ontario time is 1 Hours behind Denver. It is currently 00:39 in Denver International Airport (DEN) and 23:39 in Ontario International Airport (ONT).

The flight distance from Denver International Airport (DEN) to Ontario International Airport (ONT) is 818 miles. This is equivalent to 1316 kilometers or 710 nautical miles. The distance shown below is the straight line distance (may be called as flying or air distance) or direct flight distance between airports.

1316 kilometers is the distance from Denver International Airport, United States to Ontario International Airport, United States.

Flight Duration between Denver, United States and Ontario, United States

Estimated flight time from Denver International Airport, Denver, United States to Ontario International Airport, Ontario, United States is 1 hours 38 minutes under avarage conditions. The flight time calculator assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/hr or 434 knots. Your actual flying time may vary depending on wind speeds or weather conditions.

Time Difference Between the Airports • DEN - ONT

Time difference between Denver (United States) and Ontario (United States) is 1 Hours.
Current local time in Denver is 2025-12-20, 00:39:31 MST and time in Ontario is 2025-12-19, 23:39:31 PST.
Ontario time is 1 Hours behind Denver.

Denver International Airport to Ontario International Airport Flight Route Map - DEN to ONT Flight Path

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

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

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

Denver International Airport
City:	Denver
Country:	United States
IATA Code:	DEN
ICAO Code:	KDEN
GPS Coordinates:	Latitude: N 39° 51' 42'' Longitude: W 104° 40' 23.4''
Current time:	2025-12-20, 00:39:31 MST
Current weather:	Denver International Airport 15 day weather forecast

Ontario International Airport
City:	Ontario
Country:	United States
IATA Code:	ONT
ICAO Code:	KONT
GPS Coordinates:	Latitude: N 34° 3' 21.6'' Longitude: W 117° 36' 4.3''
Current time:	2025-12-19, 23:39:31 PST
Current weather:	Ontario International Airport 15 day weather forecast
Flights: