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Ontario International Airport to Denver International Airport flight
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Cheap Flight Deals from Ontario International Airport to Denver International Airport

Search for flights from Los Angeles to Denver and check out affordable one-way and round-trip options.

  • One way
  • Round-trip
sortSort: Price (Lowest)
  • Sort: Price (Lowest)
  • Sort: Departure (Earliest)
      • ONT00:49
        2h 21m
        Direct
        DEN04:10
        Ontario - Denver|Tue, May 21|Frontier Airlines
        CAD 26CAD 36
        27% OFF
        27% OFF
        CAD 36CAD 26
      • ONT00:59
        2h 24m
        Direct
        DEN04:23
        Ontario - Denver|Tue, Apr 30|Frontier Airlines
        CAD 26CAD 36
        26% OFF
        26% OFF
        CAD 36CAD 26
      • ONT00:59
        2h 24m
        Direct
        DEN04:23
        Ontario - Denver|Wed, May 1|Frontier Airlines
        CAD 27CAD 36
        25% OFF
        25% OFF
        CAD 36CAD 27
      • ONT00:59
        2h 24m
        Direct
        DEN04:23
        Ontario - Denver|Wed, May 15|Frontier Airlines
        CAD 27
        CAD 27
      • ONT14:35
        2h 26m
        Direct
        DEN18:01
        Ontario - Denver|Wed, May 22|Frontier Airlines
        CAD 27
        CAD 27
      • ONT00:59
        2h 24m
        Direct
        DEN04:23
        Ontario - Denver|Tue, May 14|Frontier Airlines
        CAD 27
        CAD 27
      • ONT00:49
        2h 21m
        Direct
        DEN04:10
        Ontario - Denver|Fri, May 17|Frontier Airlines
        CAD 27
        CAD 27
      • ONT00:59
        2h 21m
        Direct
        DEN04:20
        Ontario - Denver|Tue, May 28|Frontier Airlines
        CAD 27
        CAD 27
      • ONT00:59
        2h 24m
        Direct
        DEN04:23
        Ontario - Denver|Mon, May 13|Frontier Airlines
        CAD 27
        CAD 27
      • ONT07:30
        2h 31m
        Direct
        DEN11:01
        Ontario - Denver|Sat, May 18|Frontier Airlines
        CAD 28
        CAD 28
      • ONT13:00
        3h 5m
        Direct
        DEN14:00
        Los Angeles - Denver|Mon, May 6|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from Ontario International Airport to Denver International Airport

See which airlines fly from Los Angeles to Denver. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

Frontier Airlines
From CAD 26
Southwest Airlines
From CAD 108
Delta Air Lines
From CAD 110
Alaska Airlines
From CAD 122
United Airlines
From CAD 123
American Airlines
From CAD 148
ANA airlines
Find more flights and airlines

Find Cheaper Flights from Los Angeles to Denver. Enjoy direct flights with 1 airline

Explore other flights from Los Angeles to Denver to find the best alternative options.

  • Cheapest
    Frontier Airlines
    LAX
    08:11
    2h 25m
    Direct
    DEN
    11:36
    Los Angeles International Airport - Denver International Airport
    Wed, May 15Frontier Airlines
    CAD 37
  • Frontier Airlines
    LAX
    08:11
    2h 25m
    Direct
    DEN
    11:36
    Los Angeles International Airport - Denver International Airport
    Wed, May 15Frontier Airlines
    CAD 37
    Find More Flights

Ontario International Airport to Denver International Airport Flights Info

Flight distance1,316.16km
Cheapest one-way ticket priceCAD 26
Cheapest return ticket priceCAD 48

FAQs for Ontario International Airport to Denver International Airport Flights

  • How long does it take to fly from Ontario International Airport (ONT) to Denver International Airport (DEN)?

    It takes around 2 hours 38 minutes to fly from Ontario International Airport (ONT) to Ontario International Airport(DEN).

  • How many daily flights are there from Ontario International Airport (ONT) to Denver International Airport (DEN)?

    There are around 5 daily flights from Ontario International Airport (ONT) to Denver International Airport (DEN).

  • When are flight tickets from Ontario International Airport (ONT) to Denver International Airport (DEN) the cheapest?

    Tickets cost around CAD 160 in June, making it the cheapest month to book. Ontario International Airport (ONT) to Denver International Airport (DEN) is a popular route, so don't forget to book your tickets in advance.

  • When are flight tickets from Ontario International Airport (ONT) to Denver International Airport (DEN) most expensive?

    The route from Ontario International Airport (ONT) to Denver International Airport (DEN) is quite popular. Without considering departure times or holidays, tickets cost around CAD 213 in May, the most expensive month to book this route.

  • Which airline operates the most direct flights from Ontario International Airport (ONT) to Denver International Airport (DEN)?

    Frontier Airlines is a very popular airline operating an average of 2522 flights per month.

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