Flights from Ontario Airport (ONT) to Denver Airport Airport (DEN)

We've found the cheapest flights to Denver

Returns from £43.55

One-way from £23.83

Air Transport International, Volaris, Frontier, United Airlines, Air Canada and Southwest Airlines fly direct from Ontario International to Denver International United States. The flight time from Ontario International to Denver International is around 2 Hours 22 Minutes and you will cover 1,316 Km (818 Miles). The airport code for Ontario International is ONT and for Denver International it is DEN.

The price of the flight is dependent on the time of the day you fly (if there is a choice) and the day of the week with weekends being normally a higher price. If you are looking to get the cheapest flights possible then we recommend you travel mid week or in the late evening. On occasions, airliners may have special offers so look out for these. Flights to Denver International United States normally increase in price the nearer the journey date, so it is worth trying to book your tickets in advance if you can.

The time zone at Denver International is 7.0 GMT compared to 8.0 GMT at Ontario International so bare this in mind is you need to make travel arrangements when you arrive at Denver International.

Please see below the airlines that fly from Ontario International (ONT) to Denver International (DEN) and the amount of daily flights in operation.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
Southwest Airlines333442305:2516:30VIEW FLIGHTS
United Airlines222222205:1013:45VIEW FLIGHTS
Air Canada222222205:1013:45VIEW FLIGHTS
Volaris211221106:4520:11VIEW FLIGHTS
Frontier211221106:4520:11VIEW FLIGHTS
Air Transport International000011006:1506:15VIEW FLIGHTS

Southwest Airlines offer the most direct flights from Ontario International to Denver International with an average of 22 flights a week. The earliest flights are operated at 05:25 and the latest flights operated at 16:30 and the most common flight numbers are WN1885, WN2129, WN431 and WN479

Contact Southwest Airlines at www.southwest.com/?ref=southwestairlines.com to booking a flight or find up to date information on the flight times.

Below you can see the times of all flights. These flight times do vary so we recommend you look on the appropriate airline website for accurate information for the dates you are departing.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
05:10
AirlineFlightNo
United AirlinesUA2317
Air CanadaAC5423
05:45
AirlineFlightNo
Southwest AirlinesWN431
10:40
AirlineFlightNo
VolarisY42335
FrontierF91262
10:55
AirlineFlightNo
Southwest AirlinesWN665
13:40
AirlineFlightNo
Southwest AirlinesWN1885
13:45
AirlineFlightNo
United AirlinesUA2278
Air CanadaAC3961
18:34
AirlineFlightNo
VolarisY42223
FrontierF91500
VIEW FLIGHTS
Tuesday
05:10
AirlineFlightNo
United AirlinesUA2317
Air CanadaAC5423
05:45
AirlineFlightNo
Southwest AirlinesWN431
07:45
AirlineFlightNo
VolarisY42335
FrontierF91262
10:55
AirlineFlightNo
Southwest AirlinesWN665
13:40
AirlineFlightNo
Southwest AirlinesWN1885
13:43
AirlineFlightNo
United AirlinesUA2278
Air CanadaAC3961
VIEW FLIGHTS
Wednesday
05:10
AirlineFlightNo
United AirlinesUA2317
Air CanadaAC5423
05:45
AirlineFlightNo
Southwest AirlinesWN431
07:45
AirlineFlightNo
VolarisY42335
FrontierF91262
10:55
AirlineFlightNo
Southwest AirlinesWN665
13:40
AirlineFlightNo
Southwest AirlinesWN1885
13:45
AirlineFlightNo
United AirlinesUA2278
Air CanadaAC3961
VIEW FLIGHTS
Thursday
05:10
AirlineFlightNo
United AirlinesUA2317
Air CanadaAC5423
05:25
AirlineFlightNo
Southwest AirlinesWN479
06:45
AirlineFlightNo
VolarisY42335
FrontierF91262
08:30
AirlineFlightNo
Southwest AirlinesWN665
13:35
AirlineFlightNo
Southwest AirlinesWN1885
13:45
AirlineFlightNo
United AirlinesUA2278
Air CanadaAC3961
16:30
AirlineFlightNo
Southwest AirlinesWN2129
20:11
AirlineFlightNo
VolarisY42223
FrontierF91500
VIEW FLIGHTS
Friday
05:10
AirlineFlightNo
United AirlinesUA2317
Air CanadaAC5423
05:25
AirlineFlightNo
Southwest AirlinesWN479
06:15
AirlineFlightNo
Air Transport International8C3424
08:30
AirlineFlightNo
Southwest AirlinesWN665
10:40
AirlineFlightNo
VolarisY42335
FrontierF91262
13:35
AirlineFlightNo
Southwest AirlinesWN1885
13:45
AirlineFlightNo
United AirlinesUA2278
Air CanadaAC3961
16:30
AirlineFlightNo
Southwest AirlinesWN2129
18:34
AirlineFlightNo
VolarisY42223
FrontierF91500
VIEW FLIGHTS
Saturday
05:10
AirlineFlightNo
United AirlinesUA2317
Air CanadaAC5423
06:15
AirlineFlightNo
Air Transport International8C3424
06:20
AirlineFlightNo
Southwest AirlinesWN479
06:45
AirlineFlightNo
VolarisY42335
FrontierF91262
11:35
AirlineFlightNo
Southwest AirlinesWN4166
13:45
AirlineFlightNo
United AirlinesUA2278
Air CanadaAC3961
VIEW FLIGHTS
Sunday
05:10
AirlineFlightNo
United AirlinesUA2317
Air CanadaAC5423
05:45
AirlineFlightNo
Southwest AirlinesWN431
10:55
AirlineFlightNo
Southwest AirlinesWN665
13:40
AirlineFlightNo
Southwest AirlinesWN1885
13:45
AirlineFlightNo
United AirlinesUA2278
Air CanadaAC3961
20:11
AirlineFlightNo
VolarisY42223
FrontierF91500
VIEW FLIGHTS

Alternatively, there are other routes that depart Ontario International and arrive at Denver International or other nearby airports. The table below gives you a summary of these.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Bakersfield to Denver 01,357 km (843 miles)2 Hours 24 Minutes
Burbank to Denver 01,366 km (849 miles)2 Hours 25 Minutes
Las Vegas to Denver 01,009 km (627 miles)2 Hours
Los Angeles to Denver 01,385 km (861 miles)2 Hours 26 Minutes
Long Beach to Denver 01,373 km (853 miles)2 Hours 26 Minutes
Palm Springs Municipal to Denver 01,247 km (775 miles)2 Hours 17 Minutes
San Diego to Denver 01,371 km (852 miles)2 Hours 25 Minutes
Santa Barbara Municipal to Denver 01,471 km (914 miles)2 Hours 33 Minutes
Santa Ana John Wayne to Denver 01,360 km (845 miles)2 Hours 25 Minutes

Before departing Ontario International please check that you are holding a valid passport.

Don't forget to book a rental car!

Find cheap rental cars in Denver, United States

Flight Price FAQ - Ontario (ONT) to Denver (DEN)

DIRECT Frontier Airlines
What is the cheapest direct flight one way from Ontario ONT to Denver DEN?
The cheapest direct flight one way from Ontario ONT to Denver DEN is £23.83 ($29 €28.11)
£23.83
$29 | €28.11
Check Latest Price
DIRECT Frontier Airlines
What is the cheapest direct return flight from Ontario ONT to Denver DEN?
The cheapest direct return flight from Ontario ONT to Denver DEN is £43.55 ($53 €51.38)
£43.55
$53 | €51.38
Check Latest Price
Important Note: Prices shown are taken from searches performed for flights operating during the current month. Please use the "Latest Price" buttons to get the most up to date airfares.

Compare Flight Prices from ONT to DEN

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Flight Info FAQ - Ontario (ONT) to Denver (DEN)

Who flies from Ontario to Denver?
The following airlines fly from Ontario (ONT) to Denver (DEN): Air Canada, Air Transport International, Frontier, Southwest Airlines, United Airlines, Volaris.
How far is the flight from Ontario to Denver?
The flight from Ontario to Denver is 1,316KM or 818 miles.
How long does the flight from Ontario to Denver to take?
The flight from Ontario to Denver takes 2 Hours 22 Minutes.

Other Airports Connecting To Denver Airport in united states

Don't forget to book a hire car!

Find cheap rental vehicles at Denver Airport

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