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All scheduled flights from Denver to Ontario (DEN-ONT)

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All scheduled flights from DEN to ONT. You can fly from Denver to Ontario non-stop on every weekday and the flight takes about 2 and a half hours. Flights with stops take between 4 to 7 hours depending on your flight and connection airport.
DEN-ONT
- Flight has a long layover time at the stop-airport and will affect your flight time.
- Change of terminals at the layover airport. This can go quickly or take time depending on the airport.
- Flight is partially or completely overnight (Red-eye flight).
- Airline or one of the airlines in the flight path is a low-cost carrier. Some travelers wants to avoid low-cost airlines.
- This is codeshare flight. A codeshare flight is an agreement between airlines to sell seats on each others flights. Click on the flight to see the actual flight operator.

Flying non-stop between DEN and ONT with Southwest Airlines or United Airlines is the fastest flight option. The flight takes about 2 hours and 15 minutes.

ONT is the IATA airport code for Ontario International Airport, Ontario, California.

Yes. ONT has 2 terminals and 16222 arriving passenger seats each day.

The transfer from ONT is 8 minutes by car to Downtown Ontario.

Airlines that offer direct flights from Denver (DEN) to Ontario (ONT) is Southwest Airlines and United Airlines.

The Boeing 737MAX 8 Passenger with Southwest Airlines has 174 seats and the Boeing 737-700 (winglets) Passenger/BBJ1 with Southwest Airlines has 143 seats.

It all depends on what dates you plan on flying. But the approximate round-trip price for one passenger with Frontier Airlines is $136 and with United $439.

If you fly with United Airlines you will be arriving at Terminal 2 but if you choose to travel with Southwest Airlines you will be arriving at Terminal 4.