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Flights Fare Calendar Find minimum fare between Los Angeles - Ontario Intl. and Denver Intl. Click this button to get previous days data Click this button to get next days data $295 $253 $211 $169 $126 $84 $42 $0 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W Price is $295 on United Price is $99 on American Airlines Price is $99 on Frontier Airlines Price is $99 on United Price is $228 on Alaska Airlines Price is $206 on Alaska Airlines Price is $65 on Frontier Airlines Price is $211 on Alaska Airlines Price is $211 on Alaska Airlines Price is $206 on Frontier Airlines Price is $65 on Frontier Airlines Price is $99 on American Airlines Price is $65 on Frontier Airlines Price is $65 on Frontier Airlines Price is $171 on Alaska Airlines Price is $115 on American Airlines Price is $65 on Frontier Airlines Price is $65 on Frontier Airlines Price is $171 on Alaska Airlines Price is $82 on Frontier Airlines Price is $82 on Frontier Airlines Price is $178 on Alaska Airlines Price is $178 on Alaska Airlines Price is $82 on Frontier Airlines Price is $82 on Frontier Airlines Price is $131 on American Airlines Price is $135 on Frontier Airlines Price is $152 on Frontier Airlines Price is $203 on Alaska Airlines Price is $135 on Alaska Airlines

Amazing ONT to DEN Flight Deals

The cheapest flights to Denver Intl. found within the past 7 days were $65 round trip and $33 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for ONT to DEN

Carrier Flight Depart ONT Arrive DEN Tue
1/19
Wed
1/20
Thu
1/21
Fri
1/22
Sat
1/23
Sun
1/24
Mon
1/25
Stops
UA 703 05:30 am 08:44 am Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
F9 370 09:43 am 12:58 pm - - Check fare Check fare - - Check fare 0 stop(s)

FAQs about flights from Los Angeles - Ontario Intl. Airport (ONT) to Denver Intl. Airport (DEN)

Are there direct flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Denver Airport?

Your next amazing adventure is on the opposite side of a single flight. You can travel direct from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Denver, CO (DEN-Denver Intl.) with multiple airlines, including Southwest Airlines and United Airlines.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Denver, CO (DEN-Denver Intl.), please visit our Customer Service Portal.

How long is the flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Denver Airport?

If you were planning to drift into a deep sleep during your Los Angeles to Denver flight, you may have to make other plans. The average flight time between Ontario, CA (ONT-Los Angeles - Ontario Intl.) and Denver, CO (DEN-Denver Intl.) is a short 2 hours and 39 minutes — just enough to relax your body and rest your eyes for a short while.

What is the flight distance from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Denver Airport?

There's not much point watching a film. We'll be surprised if you even squeeze in a couple of TV episodes on the journey between Los Angeles and Denver. You'll only be traveling 870 mi.

What airlines fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Denver Airport?

You can choose from a few airlines that advertise direct flights between Los Angeles and Denver. Southwest Airlines (WN) is one of the most reputable. This air carrier operates 125 flights each month. You'll want to also check out the deals on offer from United Airlines (UA). This carrier operates 89 flights each month on the Los Angeles to Denver route. Compare the two airlines to find your ideal fare.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week 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 2019, flights departing on a Tuesday 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 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2019. Savings are subject to change based on departure location, date and destination.

Los Angeles - Ontario Intl. to Denver Intl. Flight FAQ

Traveling FromLos Angeles - Ontario Intl.
Traveling ToDenver Intl.
Shortest Flight Time2 hours 10 mins
Earliest Departure Time5:30AM PST
Latest Departure Time8:39PM PST
Lowest Flight Price$65

Route Info

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


Distance:
931.00 miles


Airlines & Aircraft Used on ONT to DEN Flight Routes


Airline Carrier
Aircraft
American Airlines
Airbus A320-100/200

Popular Flight Routes from Ontario (ONT)

Los Angeles - Ontario Intl. to Denver Intl. Flight FAQ

Traveling FromLos Angeles - Ontario Intl.
Traveling ToDenver Intl.
Shortest Flight Time2 hours 10 mins
Earliest Departure Time5:30AM PST
Latest Departure Time8:39PM PST
Lowest Flight Price$65

Travelers at ONT love to visit these top cities. Roam to the top destinations from Ontario (ONT) today with the cheap prices from Travelocity!

Popular Flight Routes from Denver (DEN)

Travelers at DEN love to visit these top cities. Roam to the top destinations from Denver(DEN) today with the cheap prices from Travelocity!

*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.