$69 Cheap flights from Denver Intl. to Los Angeles - Ontario Intl. (DEN to ONT)

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Find The Best Dates To Fly from Denver Intl. to Los Angeles - Ontario Intl.

Compare Flight Prices from Denver to Ontario

Affordable Airfare Tickets from DEN to ONT Airport

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $78 round trip and $69 one way. Prices and availability subject to change. Additional terms may apply.

Thu, May 1 - Mon, May 12
DEN
Denver
ONT
Ontario
$78 Roundtrip, found 6 days ago
$78
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, May 1 from Denver to Ontario, returning Mon, May 12, priced at $78 found 6 days ago
Fri, May 9 - Fri, May 9
DEN
Denver
ONT
Ontario
$83 Roundtrip, found 3 days ago
$83
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, May 9 from Denver to Ontario, returning Fri, May 9, priced at $83 found 3 days ago
Mon, May 5 - Mon, May 5
DEN
Denver
ONT
Ontario
$83 Roundtrip, found 4 days ago
$83
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon, May 5 from Denver to Ontario, returning Mon, May 5, priced at $83 found 4 days ago
Thu, May 15 - Fri, May 16
DEN
Denver
ONT
Ontario
$90 Roundtrip, found 4 days ago
$90
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, May 15 from Denver to Ontario, returning Fri, May 16, priced at $90 found 4 days ago
Thu, May 8 - Fri, May 16
DEN
Denver
ONT
Ontario
$95 Roundtrip, found 2 days ago
$95
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, May 8 from Denver to Ontario, returning Fri, May 16, priced at $95 found 2 days ago
Thu, May 8 - Mon, May 12
DEN
Denver
ONT
Ontario
$98 Roundtrip, found 2 days ago
$98
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, May 8 from Denver to Ontario, returning Mon, May 12, priced at $98 found 2 days ago
Sun, May 11 - Fri, May 16
DEN
Denver
ONT
Ontario
$102 Roundtrip, found 2 days ago
$102
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, May 11 from Denver to Ontario, returning Fri, May 16, priced at $102 found 2 days ago
Sun, May 18 - Sat, May 24
DEN
Denver
ONT
Ontario
$110 Roundtrip, found 3 days ago
$110
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sun, May 18 from Denver to Ontario, returning Sat, May 24, priced at $110 found 3 days ago
Tue, May 20 - Wed, May 21
DEN
Denver
ONT
Ontario
$113 Roundtrip, found 6 days ago
$113
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Tue, May 20 from Denver to Ontario, returning Wed, May 21, priced at $113 found 6 days ago
Fri, May 16 - Thu, May 22
DEN
Denver
ONT
Ontario
$117 Roundtrip, found 3 days ago
$117
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, May 16 from Denver to Ontario, returning Thu, May 22, priced at $117 found 3 days ago

Los Angeles - Ontario Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
Best Western Corona Hotel & Suites

Best Western Corona Hotel & Suites

3.5 out of 5
per person
May 20 - May 22
found 9 hours ago
Roundtrip flight included
Denver (DEN) to Ontario (ONT)
DoubleTree by Hilton Ontario Airport

DoubleTree by Hilton Ontario Airport

4 out of 5
per person
May 26 - May 31
found 1 day ago
Roundtrip flight included
Denver (DEN) to Ontario (ONT)
Hampton Inn & Suites Ontario

Hampton Inn & Suites Ontario

3 out of 5
per person
May 26 - May 31
found 1 day ago
Roundtrip flight included
Denver (DEN) to Ontario (ONT)
Hotel Seville

Hotel Seville

2 out of 5
per person
May 16 - May 18
found 1 day ago
Roundtrip flight included
Denver (DEN) to Ontario (ONT)
Best Western Ontario Mills Mall

Best Western Ontario Mills Mall

2.5 out of 5
per person
May 20 - May 22
found 9 hours ago
Roundtrip flight included
Denver (DEN) to Ontario (ONT)
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Frequently asked questions

Are there direct flights from DEN to Los Angeles - Ontario Intl. Airport (ONT)?
Begin your getaway in the most stress-free way possible and head straight to Los Angeles - Ontario Intl. Airport (ONT) from DEN. Southwest Airlines and United Airlines are among the airlines that offer direct services on this route.
How long is the flight from Denver Intl. Airport (DEN) to Los Angeles - Ontario Intl. Airport (ONT)?
The flight from Denver Intl. Airport (DEN) to ONT is a quick 2 hours and 19 minutes on average. With such minimal travel time, you won’t need to fret if you forget to pack a phone charger in your cabin baggage.
What is the flight distance from DIA airport to Ontario Airport?
Don’t worry about settling in for a movie. You’d be lucky to even catch up on some TV episodes on the flight between Denver Airport and ONT. You’ll only be covering 820 mi.
What airlines fly from Denver Intl. Airport (DEN) to Ontario Airport?
Choose from a number of airlines offering direct flights between Denver and Ontario. Southwest Airlines (WN) is one of the most popular. This carrier offers 86 flights each month. If you want more options, have a look at the deals on offer from United Airlines (UA). This carrier operates 60 flights every month. Between the two, we’re sure you’ll find a deal to suit your travel needs.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Flight information from Denver to Ontario

 

Traveling From
Denver Intl.
Traveling To
Los Angeles - Ontario Intl.
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$78

Route Info

Flight path for flights from Denver International Airport to LA/Ontario International Airport


Origin:
DEN - Denver International Airport
Destination:
ONT - LA/Ontario International Airport
Distance:
822.00 miles


Airlines & Aircraft Used on DEN to ONT Flight Routes


Airline Carrier
Aircraft
American Airlines
Boeing 747-400 pax
United Airlines
De Havilland Canada DHC-6 Twin Otter

Discover our best flights from Denver DEN to Ontario ONT. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Denver DEN to Ontario ONT at the right price  

Airfares to Ontario ONT from Denver DEN currently cost between $78 and $117. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Denver DEN to Ontario ONT 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Denver DEN to Ontario ONT on Travelocity starting at $69. Prices and availability subject to change. Additional terms may apply. 

 

Get to Ontario ONT from Denver DEN quicker with direct flights. 

Get to Ontario faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to ONT from DEN to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from Denver DEN to Ontario ONT

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to ONT from DEN. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Denver DEN to Ontario ONT today 

If you’re flexible about when you travel, May is usually the cheapest month to fly from Denver DEN to Ontario ONT. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Ontario ONT from Denver DEN 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to ONT from DEN have this option.  

 

Travel with confidence when you book flights to Ontario ONT from Denver DEN with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.