Cheap flights from ONT to DEN (Los Angeles - Ontario Intl. to Denver Intl.)

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Cheap Flights from ONT to DEN starting at $64 One Way, $116 Round Trip

Prices starting at $116 for return flights and $64 for one-way flights to Denver Intl. were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 10 - Sat, Sep 13
ONT
Ontario
DEN
Denver
$116 Roundtrip, found 5 days ago
$116
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Wed, Sep 10 from Ontario to Denver, returning Sat, Sep 13, priced at $116 found 5 days ago
Thu, Sep 4 - Sat, Sep 13
ONT
Ontario
DEN
Denver
$118 Roundtrip, found 5 days ago
$118
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Thu, Sep 4 from Ontario to Denver, returning Sat, Sep 13, priced at $118 found 5 days ago
Tue, Aug 12 - Sat, Aug 16
ONT
Ontario
DEN
Denver
$118 Roundtrip, found 4 days ago
$118
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Tue, Aug 12 from Ontario to Denver, returning Sat, Aug 16, priced at $118 found 4 days ago
Sun, Sep 28 - Tue, Sep 30
ONT
Ontario
DEN
Denver
$119 Roundtrip, found 3 hours ago
$119
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sun, Sep 28 from Ontario to Denver, returning Tue, Sep 30, priced at $119 found 3 hours ago
Wed, Sep 3 - Sat, Sep 6
ONT
Ontario
DEN
Denver
$135 Roundtrip, found 5 days ago
$135
Roundtrip
found 5 days ago
Select United flight, departing Wed, Sep 3 from Ontario to Denver, returning Sat, Sep 6, priced at $135 found 5 days ago

ONT to DEN Route Info

Origin Airport
Los Angeles
Destination Airport
Denver
Number Of Airlines Serving
4
Distance
816 mi
Shortest Flight Departure Time
8:10AM PDT
Shortest Flight Departure Date
Jul 22
ONT Address & GPS
Address:
2900 E. Airport Drive
Ontario CA, 91761
United States
IATA Code:
ONT
Longitude:
-117.601193
Latitude:
34.056001
Time Zone:
America/Los_Angeles
DEN Address & GPS
Address:
8500 Pena Boulevard
Denver CO, 80249-6340
United States
IATA Code:
DEN
Longitude:
-104.673098
Latitude:
39.851382
Time Zone:
America/Denver

Frequently asked questions

Are there non-stop flights from Ontario Airport to DIA airport?
Get ready to buckle up your seat belt and enjoy a cruisy flight aboard one of the 3 airlines that fly direct from Los Angeles - Ontario Intl. Airport (ONT) to Denver Intl. Airport (DEN). We've come up with a list of reliable carriers you might want to book with:

  • Southwest Airlines
  • United Airlines
  • Frontier Airlines

What is the shortest flight from Los Angeles - Ontario Intl. Airport (ONT) to Denver Airport?
There's nothing nicer than an impromptu getaway. With the journey from Ontario to Denver being a mere 2 hours and 10 minutes, there's no reason not to take one.
How many hours flight from ONT to DIA airport?
It takes a leisurely 2 hours and 16 minutes on average to travel from ONT to DEN. Whip out your guide book and start circling the spots you plan to visit. It won't be long before you'll be exploring them yourself.
What airlines have the most flights from Los Angeles - Ontario Intl. Airport (ONT) to Denver Airport?
Look up Frontier Airlines (F9). It's one of the airlines that offer flights from Los Angeles - Ontario Intl. Airport (ONT) to DIA airport. It's also a favorite with travelers and offers 56 services on this route monthly. United Airlines (UA) also flies from Ontario to Denver. It's another popular option and offers 69 flights each month.

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.