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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
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sortSort: Price (Lowest)
  • Sort: Price (Lowest)
  • Sort: Departure (Earliest)
      • ONT07:30
        2h 31m
        Direct
        DEN11:01
        Ontario - Denver|Sat, May 18|Frontier Airlines
        CNY 25CNY 39
        37% OFF
        37% OFF
        CNY 39CNY 25
      • ONT00:49
        2h 21m
        Direct
        DEN04:10
        Ontario - Denver|Wed, May 22|Frontier Airlines
        CNY 25CNY 39
        37% OFF
        37% OFF
        CNY 39CNY 25
      • ONT00:56
        2h 24m
        Direct
        DEN04:20
        Ontario - Denver|Fri, May 10|Frontier Airlines
        CNY 25CNY 39
        37% OFF
        37% OFF
        CNY 39CNY 25
      • ONT00:59
        2h 24m
        Direct
        DEN04:23
        Ontario - Denver|Tue, Apr 30|Frontier Airlines
        CNY 29
        CNY 29
      • ONT00:49
        2h 21m
        Direct
        DEN04:10
        Ontario - Denver|Tue, May 21|Frontier Airlines
        CNY 30
        CNY 30
      • ONT00:55
        2h 24m
        Direct
        DEN04:19
        Ontario - Denver|Sat, Apr 27|Frontier Airlines
        CNY 30
        CNY 30
      • ONT00:59
        2h 24m
        Direct
        DEN04:23
        Ontario - Denver|Wed, May 1|Frontier Airlines
        CNY 30
        CNY 30
      • ONT00:59
        2h 24m
        Direct
        DEN04:23
        Ontario - Denver|Wed, May 15|Frontier Airlines
        CNY 31
        CNY 31
      • ONT00:59
        2h 24m
        Direct
        DEN04:23
        Ontario - Denver|Tue, Apr 23|Frontier Airlines
        CNY 31
        CNY 31
      • ONT00:59
        2h 24m
        Direct
        DEN04:23
        Ontario - Denver|Tue, May 14|Frontier Airlines
        CNY 31
        CNY 31
      • ONT13:00
        3h 5m
        Direct
        DEN14:00
        Los Angeles - Denver|Sat, Apr 27|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 AU$ 25
Southwest Airlines
From AU$ 123
Delta Air Lines
From AU$ 126
Alaska Airlines
From AU$ 137
United Airlines
From AU$ 141
American Airlines
From AU$ 320
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
    AU$ 37
  • Frontier Airlines
    LAX
    08:11
    2h 25m
    Direct
    DEN
    11:36
    Los Angeles International Airport - Denver International Airport
    Wed, May 15Frontier Airlines
    AU$ 37
    Find More Flights

Ontario International Airport to Denver International Airport Flights Info

Flight distance1,316.16km
Cheapest one-way ticket priceAU$ 24
Cheapest return ticket priceAU$ 55

FAQs for Ontario International Airport to Denver International Airport Flights

  • How long is the flights from Ontario International Airport (ONT) to Denver International Airport (DEN)?

    It takes around 2 hours 42 minutes to fly from Ontario International Airport (ONT) to Denver 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 from Ontario International Airport (ONT) to Denver International Airport (DEN) the cheapest?

    Tickets cost around AU$ 186 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 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 AU$ 347 in April, the most expensive month to book this route.

  • What time does the earliest flight from Ontario International Airport to Denver International Airport depart?

    The earliest flight departs from Ontario International Airport (ONT) at 05:15 and arrives in Denver International Airport (DEN) at 08:34.

  • What time does the latest flight from Ontario International Airport to Denver International Airport depart?

    The latest flight departs from Ontario International Airport (ONT) at 18:25 and arrives in Denver International Airport (DEN) at 21:51.

  • 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 2278 flights per month.

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