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

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Cheap Flights from ONT to DEN starting at $31 One Way, $60 Round Trip

Prices starting at $60 for return flights and $31 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.

Tue, Aug 11 - Wed, Aug 12
ONT
Ontario
DEN
Denver
$60 Roundtrip, found 17 hours ago
$60
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Tue, Aug 11 from Ontario to Denver, returning Wed, Aug 12, priced at $60 found 17 hours ago
Thu, Sep 3 - Wed, Sep 9
ONT
Ontario
DEN
Denver
$61 Roundtrip, found 2 days ago
$61
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Sep 3 from Ontario to Denver, returning Wed, Sep 9, priced at $61 found 2 days ago
Thu, Aug 13 - Sat, Aug 15
ONT
Ontario
DEN
Denver
$66 Roundtrip, just found
$66
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Aug 13 from Ontario to Denver, returning Sat, Aug 15, priced at $66 just found
Wed, Oct 14 - Tue, Oct 20
ONT
Ontario
DEN
Denver
$67 Roundtrip, found 2 days ago
$67
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Oct 14 from Ontario to Denver, returning Tue, Oct 20, priced at $67 found 2 days ago
Wed, Aug 19 - Sat, Aug 22
ONT
Ontario
DEN
Denver
$70 Roundtrip, just found
$70
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Aug 19 from Ontario to Denver, returning Sat, Aug 22, priced at $70 just found

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
The price is $403 total per night from Aug 8 to Aug 9
$403 total
per night
Aug 8 - Aug 9
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 ...
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
The price is $134 total per night from Jul 19 to Jul 20
$134 total
per night
Jul 19 - Jul 20
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! (3,443 reviews)
"Had two bad nights. Very loud people upstairs running and jumping on the floor until midnight. Had an early flight and got very little sleep. Will not stay here again."

Reviewed on Jul 15, 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
The price is $449 total per night from Aug 2 to Aug 3
$449 total
per night
Aug 2 - Aug 3
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! (1,000 reviews)
"There is nothing bad about this resort. Ten Golden Stars! From the moment you arrive, the front desk, the staff, the restaurants, everything was welcoming and impeccable. The one and only downside is that when you leave, there are only so many chocolate chip cookies you can stuff in your carry on. ..."

Reviewed on Jul 14, 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

Hyatt Centric Downtown Denver

Hyatt Centric Downtown Denver

4 out of 5
1776 Champa St Denver CO
$129 nightly
The price is $149 total per night from Aug 2 to Aug 3
$149 total
Aug 2 - Aug 3
Total with taxes and fees
Stay at this hotel in Denver. Enjoy free WiFi, a rooftop terrace, and breakfast (surcharge). Our guests praise the restaurant and the helpful staff in our reviews. ...
9/10 Wonderful! (2,569 reviews)
"Good location! Friendly staff and super comfortable bed! Will come again!"

Reviewed on Jul 15, 2026

Hyatt Centric Downtown Denver
Hotel Teatro

Hotel Teatro

4.5 out of 5
1100 14th St Denver CO
$181 nightly
The price is $209 total per night from Aug 10 to Aug 11
$209 total
Aug 10 - Aug 11
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! (1,360 reviews)
"The property was very cool and had a great location. I loved our view from the room. I was disappointed that the bikes were not available."

Reviewed on Jul 13, 2026

Hotel Teatro
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! (2,582 reviews)
"Very clean room and convenient dining in lobby area."

Reviewed on Jul 14, 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
The price is $124 total per night from Jul 28 to Jul 29
$124 total
per night
Jul 28 - Jul 29
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! (1,793 reviews)
"Comfortable beds and clean bedding. Plenty of hot water. Pool was clean and refreshing. Would’ve preferred to have a mini fridge and microwave in room. Staff was not as friendly as we had hoped."

Reviewed on Jul 15, 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
The price is $130 total per night from Aug 2 to Aug 3
$130 total
per night
Aug 2 - Aug 3
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! (1,971 reviews)
"Convenient long term parking with shuttle service was very helpful."

Reviewed on Jul 13, 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
The price is $134 total per night from Jul 19 to Jul 20
$134 total
per night
Jul 19 - Jul 20
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! (3,146 reviews)
"Run of the mill in and out hotel. Don’t stay more than 1 night. Old and abused."

Reviewed on Jul 14, 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
$73 nightly
The price is $84 total per night from Jul 22 to Jul 23
$84 total
Jul 22 - Jul 23
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! (1,012 reviews)
"Property dated, AC ran all night, noisy neighbors"

Reviewed on Jul 11, 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
$104 nightly
The price is $120 total per night from Jul 19 to Jul 20
$120 total
Jul 19 - Jul 20
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! (1,192 reviews)
"It was fine, definitely not the 8.2 it was rated. Very run down, room was essentially empty (nowhere to sit) charging for parking makes no sense in that setting. Bed was very comfortable"

Reviewed on Jul 15, 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 19 to Jul 20
$140 total
Jul 19 - Jul 20
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 ...
Drury Plaza Hotel Denver Westminster
The Westin Westminster

The Westin Westminster

4 out of 5
10600 Westminster Boulevard Westminster CO
$126 nightly
The price is $141 total per night from Jul 31 to Aug 1
$141 total
Jul 31 - Aug 1
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! (1,145 reviews)

Families like: Kids pool, cribs, rollaway beds

Travelers say...
"Everything was great about my stay at this hotel. The staff were amazing. The amenities were wonderful. The area around the property was beautiful. The rooms were clean and excellent!"

Reviewed on Jul 15, 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
$118 nightly
The price is $130 total per night from Aug 2 to Aug 3
$130 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 ...
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.

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