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 $29 One Way, $58 Round Trip

Prices starting at $58 for return flights and $29 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.

Wed, Jul 29 - Tue, Aug 4
ONT
Ontario
DEN
Denver
$58 Roundtrip, found 6 days ago
$58
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Wed, Jul 29 from Ontario to Denver, returning Tue, Aug 4, priced at $58 found 6 days ago
Tue, Sep 8 - Tue, Sep 15
ONT
Ontario
DEN
Denver
$71 Roundtrip, found 3 days ago
$71
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Tue, Sep 8 from Ontario to Denver, returning Tue, Sep 15, priced at $71 found 3 days ago
Mon, Oct 12 - Tue, Oct 20
ONT
Ontario
DEN
Denver
$74 Roundtrip, found 3 hours ago
$74
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Mon, Oct 12 from Ontario to Denver, returning Tue, Oct 20, priced at $74 found 3 hours ago
Tue, Aug 4 - Tue, Aug 11
ONT
Ontario
DEN
Denver
$75 Roundtrip, found 2 days ago
$75
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Aug 4 from Ontario to Denver, returning Tue, Aug 11, priced at $75 found 2 days ago
Thu, Aug 6 - Wed, Aug 12
ONT
Ontario
DEN
Denver
$82 Roundtrip, found 4 days ago
$82
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Aug 6 from Ontario to Denver, returning Wed, Aug 12, priced at $82 found 4 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
$348 nightly
The price is $403 total per night from Jun 20 to Jun 21
$403 total
Jun 20 - Jun 21
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! (1,717 reviews)
"So convenient if you have a later arrival into Denver airport-just a short walk from baggage claim. The food at the restaurant (Grill and Vine?) was a pleasant surprise. Then a short walk back to the airport in the morning to get a shuttle to the rental cars. The convenience was worth the extra cost ..."

Reviewed on Jun 8, 2026

The Westin Denver International Airport
Quality Inn & Suites Denver International Airport

Quality Inn & Suites Denver International Airport

2.5 out of 5
6890 Tower Rd Denver CO
$106 nightly
The price is $123 total per night from Jul 6 to Jul 7
$123 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 helpful ...
Quality Inn & Suites 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
$427 nightly
The price is $483 total per night from Jun 14 to Jun 15
$483 total
Jun 14 - Jun 15
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! (1,017 reviews)
"It was a cofusinf sing layout & I worked security which was even more difficult to navigate!"

Reviewed on Jun 8, 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

Sonesta Denver Downtown

Sonesta Denver Downtown

4 out of 5
1450 Glenarm Place Denver CO
$119 nightly
The price is $138 total per night from Jun 14 to Jun 15
$138 total
Jun 14 - Jun 15
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 ...
8.4/10 Very Good! (2,487 reviews)
"Perfect stay"

Reviewed on Jun 8, 2026

Sonesta Denver Downtown
the Curtis Denver - a DoubleTree by Hilton Hotel

the Curtis Denver - a DoubleTree by Hilton Hotel

4 out of 5
1405 Curtis Street Denver CO
$144 nightly
The price is $166 total per night from Jun 14 to Jun 15
$166 total
Jun 14 - Jun 15
Total with taxes and fees
Book a stay at this luxury hotel in Denver. Enjoy free WiFi, breakfast (surcharge), and a 24-hour fitness center. Our guests praise the helpful staff and the ...
8.8/10 Excellent! (1,410 reviews)
"The staff at the front desk were very helpful"

Reviewed on Jun 8, 2026

the Curtis Denver - a DoubleTree by Hilton Hotel
La Quinta Inn & Suites by Wyndham Denver Tech Center

La Quinta Inn & Suites by Wyndham Denver Tech Center

3 out of 5
7077 S Clinton St Greenwood Village CO
$89 nightly
The price is $98 total per night from Jun 14 to Jun 15
$98 total
Jun 14 - Jun 15
Total with taxes and fees
Book a stay at this business-friendly hotel in Greenwood Village. Enjoy free breakfast, free parking, and an outdoor pool. Our guests praise the breakfast and ...
9/10 Wonderful! (2,174 reviews)
"It’s was"

Reviewed on Jun 8, 2026

La Quinta Inn & Suites by Wyndham 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.

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
$93 nightly
The price is $108 total per night from Jun 14 to Jun 15
$108 total
Jun 14 - Jun 15
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 ...
7.6/10 Good! (1,829 reviews)
"Breakfast lady is super rude. 0 customer service skills. You can tell she hates her job. Breakfast is the same everyday. Second day muffins where gone... not enough food for everyone.... there's many choices around this hotel. I will choose a different one next time. Will not recommend"

Reviewed on Jun 7, 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 Jun 11 to Jun 12
$137 total
Jun 11 - Jun 12
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! (1,925 reviews)
"Newer renovated facility"

Reviewed on Jun 8, 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
$110 nightly
The price is $127 total per night from Jun 14 to Jun 15
$127 total
Jun 14 - Jun 15
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! (3,140 reviews)
"A full house to sa uh the least... the breakfast sucks... staff was constantly in and out checking on things and couldn't refill anything??? Just cereal, a little toast, pastry sort of that ran out fast and never refilled!!! No yogurt or eggs everything was cheap. I'm just unimpressed"

Reviewed on Jun 8, 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, free parking, and room service. Popular attractions 16th Street and Coors Field are located ...
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
$69 nightly
The price is $80 total per night from Jun 14 to Jun 15
$80 total
Jun 14 - Jun 15
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! (1,015 reviews)
"Our room was clean and comfortable, but the hallway smelled of cigarette smoke. All of the rooms are non-smoking, so either someone was breaking the rules or the odor is in the old carpet that needs to be replaced."

Reviewed on Jun 8, 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
$99 nightly
The price is $115 total per night from Jun 10 to Jun 11
$115 total
Jun 10 - Jun 11
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! (1,058 reviews)
"The lady at the front desk was very kind especially when we arrived exhausted at 2am. Our room was comfy and cute as well as clean. Breakfast was more variety than I expected, which was a pleasant surprise. The shuttle driver who picked us up at the airport was just wonderful as well. We will be ..."

Reviewed on Jun 8, 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 Jun 14 to Jun 15
$140 total
Jun 14 - Jun 15
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! (1,266 reviews)
"The room was nice and clean and there was shampoo, conditioner, body wash, a blowdryer, etc, which is nice, The staff wasn't the friendliest, there seemed to be a fairly new staff member that seemed a bit uninterested in our needs when we checked in, but the check out staff was warm and friendly, ..."

Reviewed on Jun 8, 2026

Drury Plaza Hotel Denver Westminster
The Westin Westminster

The Westin Westminster

4 out of 5
10600 Westminster Boulevard Westminster CO
$135 nightly
The price is $151 total per night from Jun 19 to Jun 20
$151 total
Jun 19 - Jun 20
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! (1,116 reviews)

Families like: Kids pool, cribs, rollaway beds

Travelers say...
"The hotel was welcoming and inviting the staff was excellent! The room was clean and very comfortable. Very soft sheets great pillows room service was quick and food was hot when delivered. I enjoyed my stay. Also they have a great walking park behind the hotel. I will definitely be staying there ..."

Reviewed on Jun 8, 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
$95 nightly
The price is $105 total per night from Jun 14 to Jun 15
$105 total
Jun 14 - Jun 15
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 ...
8.8/10 Excellent! (1,388 reviews)
"The staff was short with answers and didn’t seem to know what they were talking about when I asked questions about the bar and restaurant. The bar isn’t really a bar and no one is working. There is no restaurant. Other reviews raved about the breakfast but what I found was the opposite of what they ..."

Reviewed on Jun 8, 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