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 $79 One Way, $143 Round Trip

Prices starting at $143 for return flights and $79 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.

Sun, Aug 17 - Tue, Aug 19
ONT
Ontario
DEN
Denver
$143 Roundtrip, just found
$143
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Aug 17 from Ontario to Denver, returning Tue, Aug 19, priced at $143 just found
Thu, Jul 31 - Wed, Aug 6
ONT
Ontario
DEN
Denver
$146 Roundtrip, found 19 hours ago
$146
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Thu, Jul 31 from Ontario to Denver, returning Wed, Aug 6, priced at $146 found 19 hours ago
Thu, Jul 10 - Fri, Jul 11
ONT
Ontario
DEN
Denver
$148 Roundtrip, found 5 days ago
$148
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Thu, Jul 10 from Ontario to Denver, returning Fri, Jul 11, priced at $148 found 5 days ago
Thu, Jul 31 - Mon, Aug 4
ONT
Ontario
DEN
Denver
$149 Roundtrip, found 3 days ago
$149
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Jul 31 from Ontario to Denver, returning Mon, Aug 4, priced at $149 found 3 days ago
Wed, Dec 3 - Mon, Dec 8
ONT
Ontario
DEN
Denver
$157 Roundtrip, found 5 hours ago
$157
Roundtrip
found 5 hours ago
Select Southwest Airlines flight, departing Wed, Dec 3 from Ontario to Denver, returning Mon, Dec 8, priced at $157 found 5 hours ago

Hotel Ideas near Denver Intl.

Airport Hotels near Denver Intl.

The Westin Denver International Airport
The Westin Denver International Airport
4.5 out of 5
8300 Pena Boulevard, Denver, CO
Stay at this 4.5-star luxury hotel in Denver. Enjoy 2 bars/lounges, breakfast (surcharge), and room service. Our guests praise the helpful staff and the clean ...
9/10 Wonderful! (1,546 reviews)
"Sweet"

Reviewed on Jun 9, 2025

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The Westin Denver International Airport
Gaylord Rockies Resort & Convention Center
Gaylord Rockies Resort & Convention Center
4.5 out of 5
6700 North Gaylord Rockies Boulevard, Aurora, CO
Stay at this 4.5-star luxury hotel in Aurora. Enjoy a full-service spa, 6 restaurants, and 2 hot tubs. Our guests praise the helpful staff and the property condition ...
8.6/10 Excellent! (1,003 reviews)
"This place is amazing! We loved everything except the front desk help. They seemed too busy to deal with us and very rude both at check out and check in. We had two rooms and everything was wonderful. The wait staff was great and valet staff was top notch! Please train the front desk te to be a little ..."

Reviewed on Jun 10, 2025

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Gaylord Rockies Resort & Convention Center
Days Inn & Suites by Wyndham Denver International Airport
Days Inn & Suites by Wyndham Denver International Airport
3 out of 5
7030 Tower Rd, Denver, CO
Stay at this 3-star business-friendly hotel in Denver. Enjoy free breakfast, free WiFi, and a free airport shuttle. Our guests praise the breakfast and the helpful ...
8/10 Very Good! (1,236 reviews)
"Nice clean hotel close to the airport and food."

Reviewed on Jun 9, 2025

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Days Inn & Suites by Wyndham Denver International Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Hotels In Denver

Hilton Denver City Center
Hilton Denver City Center
4 out of 5
1701 California St, Denver, CO
Stay at this 4-star business-friendly hotel in Denver. Enjoy free WiFi, breakfast (surcharge), and room service. Our guests praise the helpful staff and the ...
8.4/10 Very Good! (1,005 reviews)
"Very clean and friendly staff"

Reviewed on Jun 7, 2025

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Hilton Denver City Center
Sonesta Denver Downtown
Sonesta Denver Downtown
4 out of 5
1450 Glenarm Place, Denver, CO
Book a stay at this business-friendly hotel in Denver. Enjoy an outdoor pool, breakfast (surcharge), and a 24-hour fitness center. Our guests praise the helpful ...
8/10 Very Good! (1,596 reviews)
"Secure feeling, clean, pleasant staff. The carpet needs replaced but everything else was great 👍"

Reviewed on Jun 10, 2025

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Sonesta Denver Downtown
Hyatt Place Denver Downtown
Hyatt Place Denver Downtown
3.5 out of 5
440 14th St, Denver, CO
Stay at this 3.5-star business-friendly hotel in Denver. Enjoy free breakfast, free WiFi, and a 24-hour fitness center. Our guests praise the breakfast and the ...
8.8/10 Excellent! (2,810 reviews)
"Easy access grow the freeway."

Reviewed on Jun 8, 2025

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Hyatt Place Denver Downtown
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Denver Hotels With Airport Transportation

Baymont by Wyndham Denver International Airport
Baymont by Wyndham Denver International Airport
2.5 out of 5
6805 N. Argonne Street, Denver, CO
Book a stay at this business-friendly hotel in Denver. Enjoy free WiFi, a free airport shuttle, and a 24-hour fitness center. Our guests praise the helpful staff ...
7.4/10 Good! (1,978 reviews)
"Front desk was great help with the shuttle service. (Not so great)"

Reviewed on Jun 8, 2025

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Baymont by Wyndham Denver International Airport
Days Inn & Suites by Wyndham Denver International Airport
Days Inn & Suites by Wyndham Denver International Airport
3 out of 5
7030 Tower Rd, Denver, CO
Stay at this 3-star business-friendly hotel in Denver. Enjoy free breakfast, free WiFi, and a free airport shuttle. Our guests praise the breakfast and the helpful ...
8/10 Very Good! (1,236 reviews)
"Nice clean hotel close to the airport and food."

Reviewed on Jun 9, 2025

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Days Inn & Suites by Wyndham Denver International Airport
AmericInn by Wyndham Denver Airport
AmericInn by Wyndham Denver Airport
2.5 out of 5
7010 Tower Road, Denver, CO
Book a stay at this business-friendly hotel in Denver. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the pool in our ...
8.2/10 Very Good! (3,335 reviews)
"The complimentary breakfast was pretty sad. Aside from that, it was a fine place to stay."

Reviewed on Jun 9, 2025

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AmericInn by Wyndham Denver Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Low Priced Denver Hotels

Ramada by Wyndham Denver Downtown
Ramada by Wyndham Denver Downtown
2.5 out of 5
1150 E Colfax Ave, Denver, CO
Book a stay at this business-friendly hotel in Denver. Enjoy free WiFi, free parking, and room service. Popular attractions Denver Zoo and Coors Field are located ...
"Okay"

Reviewed on Feb 18, 2021

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Ramada by Wyndham Denver Downtown
Econo Lodge Denver International Airport
Econo Lodge Denver International Airport
2 out of 5
15900 E 40th Ave, Aurora, CO
Book a stay at this business-friendly hotel in Aurora. Enjoy free WiFi, free parking, and a 24-hour front desk. Our guests praise the helpful staff and the clean ...
7.4/10 Good! (1,001 reviews)
"Miranda was amazing"

Reviewed on Jun 5, 2025

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Econo Lodge Denver International Airport
Microtel Inn & Suites by Wyndham Denver Airport
Microtel Inn & Suites by Wyndham Denver Airport
2 out of 5
18600 E 63rd Ave, Denver, CO
Book a stay at this business-friendly hotel in Denver. Enjoy free breakfast, free WiFi, and a free airport shuttle. Our guests praise the helpful staff and the ...
8/10 Very Good! (325 reviews)
"Great"

Reviewed on Jun 6, 2025

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Microtel Inn & Suites by Wyndham Denver Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Family Friendly Hotels in Denver

Drury Plaza Hotel Denver Westminster
Drury Plaza Hotel Denver Westminster
3 out of 5
10393 Reed Street, Westminster, CO
Stay at this 3-star business-friendly hotel in Westminster. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful ...
9.6/10 Exceptional! (1,004 reviews)
"In town to visit our son and attend a show at Red Rocks. We have stayed here several times and always enjoy it. Staff is great and the remodel they did 2 years ago turned out great. We will definitely be back."

Reviewed on Jun 8, 2025

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Drury Plaza Hotel Denver Westminster
The Westin Westminster
The Westin Westminster
4 out of 5
10600 Westminster Boulevard, Westminster, CO
Stay at this 4-star family-friendly hotel in Westminster. Enjoy breakfast (surcharge), a free area shuttle, and a fitness center. Our guests praise the helpful ...
8.6/10 Excellent! (1,002 reviews)

Families like: Kids pool, cribs, rollaway beds

Travelers say...
"Convenient well maintained property"

Reviewed on Jun 2, 2025

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The Westin Westminster
Hyatt Place Denver Tech Center
Hyatt Place Denver Tech Center
3 out of 5
8300 E Crescent Pkwy, Greenwood Village, CO
Stay at this 3-star business-friendly hotel in Greenwood Village. Enjoy free breakfast, free WiFi, and a fitness center. Our guests praise the breakfast and ...
8.2/10 Very Good! (1,007 reviews)
"Have stayed here many times."

Reviewed on Jun 9, 2025

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Hyatt Place Denver Tech Center
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

ONT to DEN Route Info

Origin Airport
Los Angeles
Destination Airport
Denver
Number Of Airlines Serving
4
Distance
816 mi
Shortest Flight Departure Time
5:10AM PDT
Shortest Flight Departure Date
Jun 18
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

Am I able to catch a flight from Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) to Denver, CO Airport (DEN-Denver Intl.) now?
Check out our Covid-19 Travel Advisor for the most comprehensive information on travel restrictions and quarantine requirements when flying from Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) to Denver, CO Airport (DEN-Denver Intl.).
Are there non-stop flights from ONT to Denver, CO Airport (DEN-Denver Intl.)?
Get ready to enjoy a relaxing, nonstop flight with one of the 3 airlines that fly straight from ONT to DEN. We’ve complied a list of popular 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?
Flying is one of life’s great pleasures and privileges, especially when your journey is only 2 hours and 10 minutes. That’s all it’ll take to jet from ONT to Denver Airport.
How many hours flight from Ontario Airport to DEN?
There’s no excuse not to book a Denver escape when the flight from ONT to DEN is a mere 2 hours and 16 minutes on average. Go on and lock in your seat — it’s high time you took a break.
If I am not able to travel due to COVID-19, can I cancel my flight to Denver, CO Airport (DEN-Denver Intl.)?
We get that traveling right now has its challenges, so it’s good to know that many reservations booked through us are able to be cancelled or changed. If your travel plans to Denver, CO Airport (DEN-Denver Intl.) have been affected by COVID-19, a lot of airlines are making things easier by offering credits to use at a later date. Just sign in to your account and you’ll quickly see what options are available. Our Customer Service Portal is the place to go for more information.
Are there flights to Denver, CO Airport (DEN-Denver Intl.) with flexible change policies?
In most cases you’ll have the option to reschedule your flight to Denver, CO Airport (DEN-Denver Intl.) without a change fee. All you have to do then is pay the difference between the old flight and the new one. Look for the “no change fees” filter and book with confidence.
What airlines have the most flights from Los Angeles - Ontario Intl. Airport (ONT) to Denver Airport?
While there are numerous airlines offering flights from Los Angeles - Ontario Intl. Airport (ONT) to DIA airport, there are a couple that stand out. Frontier Airlines (F9) is one of the finest and has 49 flights each month. United Airlines (UA) will also take you to your destination in comfort and style. Offering 102 flights every month between San Bernardino County and North Park Hill, it’s another traveler favorite.

Map To Nearby Hotels

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.