Cheap flights from ONT to DEN (Ontario Intl. Airport to Denver Intl.)

Earn rewards on top of your airline miles with Orbitz Rewards

Many airlines offer flexible change policies

Sign up to receive text alerts about your trip

Cheap Flights from ONT to DEN starting at $44 One Way, $93 Round Trip

Prices starting at $93 for return flights and $44 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.

Sat, Aug 1 - Sat, Aug 22
ONT
Ontario
DEN
Denver
$93 Roundtrip, found 3 days ago
$93
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Aug 1 from Ontario to Denver, returning Sat, Aug 22, priced at $93 found 3 days ago
Sat, Oct 31 - Sat, Nov 7
ONT
Ontario
DEN
Denver
$98 Roundtrip, found 5 days ago
$98
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Oct 31 from Ontario to Denver, returning Sat, Nov 7, priced at $98 found 5 days ago
Sat, Aug 22 - Sat, Aug 29
ONT
Ontario
DEN
Denver
$101 Roundtrip, found 1 day ago
$101
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Aug 22 from Ontario to Denver, returning Sat, Aug 29, priced at $101 found 1 day ago
Sat, Aug 1 - Sat, Aug 22
ONT
Ontario
DEN
Denver
$136 Roundtrip, found 3 days ago
$136
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Aug 1 from Ontario to Denver, returning Sat, Aug 22, priced at $136 found 3 days ago
Wed, Nov 11 - Sat, Nov 14
ONT
Ontario
DEN
Denver
$143 Roundtrip, found 3 days ago
$143
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Wed, Nov 11 from Ontario to Denver, returning Sat, Nov 14, priced at $143 found 3 days 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
$356 nightly
The price is $412 total per night from Jul 17 to Jul 18
$412 total
Jul 17 - Jul 18
Total with taxes and fees
Book a stay at this luxury hotel in Denver. Enjoy 2 bars/lounges, breakfast (surcharge), and room service. Our guests praise the helpful staff and the clean ...
9.2/10 Wonderful! (1,722 reviews)
"I love staying here prior to an early flight. It’s so easy to just walk downstairs and head to security. It’s super quiet in the rooms, despite planes taking off right next to you at all hours, and they always provide ear plugs. All in all, it’s fantastic."

Reviewed on Jul 1, 2026

The Westin Denver International Airport
City Express by Marriott Denver Airport

City Express by Marriott Denver Airport

3 out of 5
6670 Yampa Street Denver CO
$119 nightly
The price is $138 total per night from Jul 12 to Jul 13
$138 total
Jul 12 - Jul 13
Total with taxes and fees
Book a stay at this business-friendly hotel in Denver. Enjoy free breakfast, free WiFi, and a free airport shuttle. Our guests praise the breakfast and the helpful ...
8.8/10 Excellent! (3,413 reviews)
"Super convenient to DIA and parking for airport plus free shuttle available from hotel. Walking distance to plenty of restaurants too. Hotel was modern, clean and everything you'd expect from Marriott. Very pleased."

Reviewed on Jul 4, 2026

City Express by Marriott Denver Airport
Gaylord Rockies Resort & Convention Center

Gaylord Rockies Resort & Convention Center

4.5 out of 5
6700 North Gaylord Rockies Boulevard Aurora CO
$406 nightly
The price is $460 total per night from Jul 19 to Jul 20
$460 total
Jul 19 - Jul 20
Total with taxes and fees
Book a stay at this 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 ...
8.8/10 Excellent! (1,001 reviews)
"This was posh and fun! Will return to this property."

Reviewed on Jun 30, 2026

Gaylord Rockies Resort & Convention 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.

Hotels In Denver

Hotel Teatro

Hotel Teatro

4.5 out of 5
1100 14th St Denver CO
$189 nightly
The price is $219 total per night from Jul 19 to Jul 20
$219 total
Jul 19 - Jul 20
Total with taxes and fees
Book a stay at this luxury hotel in Denver. Enjoy breakfast (surcharge), room service, and a 24-hour fitness center. Our guests praise the restaurant and the ...
9/10 Wonderful! (1,364 reviews)
"Staff was amazing. TV is a bit old school and lighting is horrible. Place was super clean, quiet and easy to get around. My room was clean. For being right infront of the elevators it was nice and quiet."

Reviewed on Jul 4, 2026

Hotel Teatro
Hilton Denver City Center

Hilton Denver City Center

4 out of 5
1701 California St Denver CO
$161 nightly
The price is $186 total per night from Aug 1 to Aug 2
$186 total
Aug 1 - Aug 2
Total with taxes and fees
Book a stay at this business-friendly hotel in Denver. Enjoy free WiFi, breakfast (surcharge), and room service. Our guests praise the helpful staff in our reviews. ...
9/10 Wonderful! (1,597 reviews)
"Room was cleaned and reception staff was amazing and very helpful"

Reviewed on Jul 5, 2026

Hilton Denver City Center
Sonesta Denver Downtown

Sonesta Denver Downtown

4 out of 5
1450 Glenarm Place Denver CO
$129 nightly
The price is $149 total per night from Jul 19 to Jul 20
$149 total
Jul 19 - Jul 20
Total with taxes and fees
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 ...
8.6/10 Excellent! (2,537 reviews)
"Most details are listed on this hotel’s website that may be a downside to most people, at least for me.That being said I urge anyone that reads this comment to read through this hotels amenities and what you actually pay for.We got there and had to upfront have a high hold placed on our card,As well ..."

Reviewed on Jul 4, 2026

Sonesta 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
$102 nightly
The price is $118 total per night from Jul 19 to Jul 20
$118 total
Jul 19 - Jul 20
Total with taxes and fees
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! (1,791 reviews)
"q"

Reviewed on Jul 3, 2026

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
$120 nightly
The price is $137 total per night from Jul 16 to Jul 17
$137 total
Jul 16 - Jul 17
Total with taxes and fees
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 ...
8.2/10 Very Good! (1,958 reviews)
"The room was dirty, hair IN the towels, the breakfast had canned peaches, yogurt and microwave breakfast sandwiches. No water, juice, NOTHING. Waste of money."

Reviewed on Jul 3, 2026

Days Inn & Suites by Wyndham Denver International Airport
AmericInn by Wyndham Denver Airport

AmericInn by Wyndham Denver Airport

3 out of 5
7010 Tower Road Denver CO
$129 nightly
The price is $149 total per night from Jul 6 to Jul 7
$149 total
Jul 6 - Jul 7
Total with taxes and fees
Book a stay at this business-friendly hotel in Denver. Enjoy free breakfast, free WiFi, and a free airport shuttle. Our guests praise the breakfast and the pool ...
8.4/10 Very Good! (3,142 reviews)
"Would not stay here again. Very old and dirty. Cockroaches in bathroom. Not enough parking. Couldn’t even eat breakfast because we were too grossed out by the roaches. Very disappointed. No offer of a refund or discount."

Reviewed on Jul 4, 2026

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, room service, and a fitness center. Popular attractions Denver Zoo and 16th Street are ...
5/10 (1,000 reviews)
"Okay"

Reviewed on Feb 18, 2021

Get rates
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
$83 nightly
The price is $95 total per night from Jul 9 to Jul 10
$95 total
Jul 9 - Jul 10
Total with taxes and fees
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 ...
7.6/10 Good! (1,003 reviews)
"Place was nasty and not taken care of and when I tried to cancel they wouldn’t let me"

Reviewed on Jul 5, 2026

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
$109 nightly
The price is $126 total per night from Jul 6 to Jul 7
$126 total
Jul 6 - Jul 7
Total with taxes and fees
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 ...
8.2/10 Very Good! (1,150 reviews)
"The complimentary breakfast is bad. No options to eat."

Reviewed on Jul 5, 2026

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

4 out of 5
10393 Reed Street Westminster CO
$126 nightly
The price is $140 total per night from Jul 12 to Jul 13
$140 total
Jul 12 - Jul 13
Total with taxes and fees
Book a stay at this 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! (1,272 reviews)
"Clean, great breakfast, friendly staff."

Reviewed on Jul 4, 2026

Drury Plaza Hotel Denver Westminster
The Westin Westminster

The Westin Westminster

4 out of 5
10600 Westminster Boulevard Westminster CO
$172 nightly
The price is $192 total per night from Jul 11 to Jul 12
$192 total
Jul 11 - Jul 12
Total with taxes and fees
Book a stay at this family-friendly hotel in Westminster. Enjoy breakfast (surcharge), a free area shuttle, and a fitness center. Our guests praise the helpful ...
8.8/10 Excellent! (1,131 reviews)

Families like: Kids pool, cribs, rollaway beds

Travelers say...
"The hotel is an beautiful location. The bar has the most delicious Bloody Marys."

Reviewed on Jun 29, 2026

The Westin Westminster
Hyatt Place Denver Tech Center

Hyatt Place Denver Tech Center

3 out of 5
8300 E Crescent Pkwy Greenwood Village CO
$111 nightly
The price is $123 total per night from Aug 2 to Aug 3
$123 total
Aug 2 - Aug 3
Total with taxes and fees
Book a stay at this business-friendly hotel in Greenwood Village. Enjoy free breakfast, free WiFi, and a fitness center. Our guests praise the breakfast and ...
9/10 Wonderful! (1,453 reviews)
"overall good. only complaint was with parking. Lot was insufficient to meet the needs of guests and $15 a day is excessive for a lot owned by the facility"

Reviewed on Jul 4, 2026

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
Destination Airport
Number Of Airlines Serving
Distance
Shortest Flight Departure Time
Shortest Flight Departure Date
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.

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.

More to Explore