Direct flights from Denver (DEN) to Ontario (ONT)

3 airline(s) operate this route with a flight duration of 2h 35min, covering a distance of 1323 km.
DEN
Denver International Airport
ONT
Ontario International Airport
Depart
Return
1, Economy
1, Economy
Search flights
route-map
United States
DEN Denver
route-path
United States
ONT Ontario

Distance 823 miles (1323 km)

Flight time 2h 35min

Low-Cost Airlines with Non-Stop Flights from Denver to Ontario

Denver International Airport offers a plethora of options for travelers seeking affordable airfare. If you're planning a trip from Denver to Ontario, you're in luck! Several low-cost airlines operate non-stop flights between these two destinations, providing convenience and budget-friendly options for your journey.

Southwest Airlines

One of the most popular airlines for budget-conscious travelers in the United States is Southwest Airlines. Known for its low fares and friendly service, Southwest Airlines offers non-stop flights from Denver International Airport to Ontario International Airport.

Frontier Airlines

Another budget-friendly option for travelers is Frontier Airlines. With its focus on low-cost travel, Frontier Airlines provides non-stop flights from Denver International Airport to Ontario International Airport. Be sure to check their website for special deals and discounts.

Spirit Airlines

Spirit Airlines is also a great choice for travelers seeking affordable fares. Offering non-stop flights from Denver International Airport to Ontario International Airport, Spirit Airlines provides a no-frills flying experience, allowing you to save on airfare.

Allegiant Air

If you're looking for additional options, Allegiant Air also operates non-stop flights from Denver International Airport to Ontario International Airport. With a focus on leisure travel, Allegiant Air offers competitive fares and packages for travelers heading to Ontario.

Scheduling and Booking

Before booking your flight, it's essential to check the schedules and availability of non-stop flights from Denver to Ontario. Visit the official websites of the airlines mentioned above to find the most up-to-date information on flight times and availability.

Consider signing up for email alerts from these airlines to stay informed about any special promotions or discounts they may offer. Additionally, booking your flights well in advance or being flexible with your travel dates can often lead to even more significant savings.

Plan Your Trip to Ontario

Ontario, California, is a vibrant city with plenty to offer visitors. Located in San Bernardino County, Ontario boasts attractions such as the Ontario Museum of History and Art, Cucamonga-Guasti Regional Park, and the Graber Olive House.

With low-cost airlines providing non-stop flights from Denver to Ontario, it's never been easier or more affordable to explore this beautiful city.


Please note that flight availability and prices are subject to change. It is advisable to visit the official airline websites for the most accurate and up-to-date information before making any travel arrangements.

Frontier Airlines

Frontier Airlines low cost airline

Su
Mo
Tu
We
Th
Fr
Sa

low cost airline

2 daily flights

United Airlines

United Airlines

Su
Mo
Tu
We
Th
Fr
Sa

2 daily flights

Southwest Airlines

Southwest Airlines low cost airline

Su
Mo
Tu
We
Th
Fr
Sa

low cost airline

2-4 daily flights

Non-stop flights schedule from Denver to Ontario

By browsing through the calendar, you can view all direct flight departures from Denver International Airport to Ontario International Airport across various airlines. Simply select a timetable to access a list of flights, or make a search to find the most competitive prices.

Flights Schedule

Airline Flight Mon Tue Wed Thu Fri Sat Sun
Frontier Airlines
Frontier Airlines
F9 977
Su
22:06
Mo
10:25
Tu
10:25
We
22:06
Th
22:06
Fr
22:06
Sa
22:06
Frontier Airlines
Frontier Airlines
F9 975
Su
15:09
Mo
Tu
We
15:09
Th
15:10
Fr
15:09
Sa
15:06
Frontier Airlines
Frontier Airlines
F9 979
Su
Mo
22:30
Tu
23:10
We
Th
Fr
Sa
United Airlines
United Airlines
UA 430
Su
11:15
Mo
11:15
Tu
11:15
We
11:15
Th
11:15
Fr
11:15
Sa
11:15
United Airlines
United Airlines
UA 336
Su
Mo
19:17
Tu
19:17
We
Th
Fr
Sa
United Airlines
United Airlines
UA 451
Su
19:20
Mo
Tu
We
19:20
Th
19:20
Fr
19:20
Sa
19:20
Southwest Airlines
Southwest Airlines
WN 1909
Su
Mo
Tu
06:10
We
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 3018
Su
Mo
08:05
Tu
We
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 397
Su
Mo
Tu
We
08:30
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 1277
Su
08:30
Mo
Tu
We
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 1256
Su
Mo
Tu
We
Th
08:55
Fr
08:55
Sa
11:15
Southwest Airlines
Southwest Airlines
WN 3591
Su
Mo
12:45
Tu
We
13:45
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 1181
Su
Mo
Tu
13:35
We
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 586
Su
15:40
Mo
Tu
We
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 2158
Su
Mo
Tu
We
16:45
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 3022
Su
Mo
Tu
We
Th
17:10
Fr
17:10
Sa
Southwest Airlines
Southwest Airlines
WN 1044
Su
Mo
Tu
18:40
We
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 1433
Su
Mo
Tu
We
Th
Fr
Sa
19:15
Southwest Airlines
Southwest Airlines
WN 2896
Su
Mo
19:45
Tu
We
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 961
Su
Mo
23:00
Tu
We
21:35
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 1507
Su
Mo
Tu
21:50
We
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 1795
Su
22:15
Mo
Tu
We
Th
21:50
Fr
21:50
Sa

Denver to Ontario direct flight price statistics

For those looking for the most affordable option, a direct flight from Denver International Airport to Ontario International Airport can be found for as little as 125€, with the cheapest time to fly being in July.
The average prices for direct flights between Denver International Airport (DEN) and Ontario International Airport (DEN) are determined based on user searches and calculated from the lowest prices found per month for a round-trip ticket with a single adult. Please note that the prices may vary depending on the amount of data available for this particular route.

€210 Approximately

€184 Jan
€149 Feb
€156 Mar
€169 Apr
€222 May
€148 Jun
€127 Jul
€127 Aug
€127 Sep
€269 Oct
€410 Nov
€435 Dec
The estimated cost for a flight from Denver International Airport (DEN) and Ontario International Airport (DEN)
Denver International Airport

Departing from Denver International Airport (DEN)

Denver International (DEN) is the third largest airport in United States.

Show all flights from DEN →
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Ontario International Airport

Arriving to Ontario International Airport (ONT)
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Ontario International Airport (ONT) is a bigger airport in United States.

Show all flights from ONT →

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Excursions & Activities in Denver

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Type of aircrafts on this to route

Below, you'll find a comprehensive list of the different aircraft types that operate on this particular route, along with details on their seat capacity and available classes.
  • airplane

    A320neo

    Frontier Airlines
    186 seats (all economy)
  • airplane

    Airbus A319

    United Airlines
    126 seats (all economy)
  • airplane

    Airbus A320

    United Airlines
    150 seats (all economy)
  • airplane

    Boeing 737-900 Passenger

    United Airlines
    179 seats (all economy)
  • airplane

    Boeing 737-700 (winglets) Passenger/BBJ1

    Southwest Airlines
    143 seats (all economy)
  • airplane

    Boeing 737-800 (winglets) Passenger/BBJ2

    Southwest Airlines
    175 seats (all economy)
  • airplane

    Boeing 737-800 Passenger

    Southwest Airlines
    155 seats (all economy)

Denver to Ontario: Flight information

Here are some key points to keep in mind before your trip:
  • ticket

    Cheapest flight found

    127€
  • clock

    Average flight time

    2:35 h
  • checkmark-calendar

    Cheapest month for a flight

    July
  • send

    Most popular airline

    Frontier Airlines
  • regular-calendar

    Flights per week

    21

Frequently asked questions (FAQ)

What is the duration of the flight from Denver to Ontario?

Usually, it takes 2h 35min to fly from Denver International Airport (DEN) to Ontario International Airport (ONT)

How many airlines offer nonstop flights between Denver and Ontario?

3 airline(s): Frontier Airlines, United Airlines, Southwest Airline provide nonstop flights to Ontario International Airport (ONT).

How much does it usually cost to fly from Denver to Ontario?

You can fly directly from Denver International Airport and Ontario International Airport for only 125€ if you book in July. A non-stop flight will cost you 428€ in December, when flight prices are higher.

What is the most popular airline on this route?

The most well-known airline operating direct flights between Denver to Ontario is Frontier Airlines.

How far is it to fly between Denver to Ontario?

The shortest distance is 1323 kilometers.

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