$29 Cheap flight deals from Riverside (QLA) to Denver (DEN)

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This Weekend's Flight Deals from Riverside to Denver

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jan 3 - Thu, Jan 8
SNA
John Wayne
DEN
Denver Intl.
$235 Roundtrip, found 1 day ago
$235
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Jan 3 from John Wayne to Denver Intl., returning Thu, Jan 8, priced at $235 found 1 day ago
Fri, Jan 2 - Sat, Jan 3
ONT
Los Angeles - Ontario Intl.
DEN
Denver Intl.
$322 Roundtrip, just found
$322
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Jan 2 from Los Angeles - Ontario Intl. to Denver Intl., returning Sat, Jan 3, priced at $322 just found
Sun, Jan 4 - Mon, Jan 5
LGB
Long Beach Municipal
DEN
Denver Intl.
$426 Roundtrip, found 4 days ago
$426
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Sun, Jan 4 from Long Beach Municipal to Denver Intl., returning Mon, Jan 5, priced at $426 found 4 days ago
Sat, Jan 3 - Tue, Jan 20
ONT
Los Angeles - Ontario Intl.
COS
Colorado Springs
$438 Roundtrip, found 5 days ago
$438
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Jan 3 from Los Angeles - Ontario Intl. to Colorado Springs, returning Tue, Jan 20, priced at $438 found 5 days ago

Airfares from $29 One Way, $58 Round Trip from Riverside to Denver

Prices starting at $58 for return flights and $29 for one-way flights to Denver 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, Feb 28 - Tue, Mar 3
ONT
Ontario
DEN
Denver
$58 Roundtrip, found 13 hours ago
$58
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Sat, Feb 28 from Ontario to Denver, returning Tue, Mar 3, priced at $58 found 13 hours ago
Sat, Feb 21 - Sat, Feb 28
SNA
Orange County
DEN
Denver
$59 Roundtrip, found 15 hours ago
$59
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Sat, Feb 21 from Orange County to Denver, returning Sat, Feb 28, priced at $59 found 15 hours ago
Sat, Feb 21 - Sat, Feb 28
SNA
Orange County
DEN
Denver
$157 Roundtrip, found 22 hours ago
$157
Roundtrip
found 22 hours ago
Select United flight, departing Sat, Feb 21 from Orange County to Denver, returning Sat, Feb 28, priced at $157 found 22 hours ago
Tue, Feb 3 - Sat, Feb 7
ONT
Ontario
DEN
Denver
$159 Roundtrip, found 13 hours ago
$159
Roundtrip
found 13 hours ago
Select Southwest Airlines flight, departing Tue, Feb 3 from Ontario to Denver, returning Sat, Feb 7, priced at $159 found 13 hours ago
Sat, Jan 17 - Wed, Jan 21
PSP
Palm Springs
DEN
Denver
$185 Roundtrip, found 3 days ago
$185
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Jan 17 from Palm Springs to Denver, returning Wed, Jan 21, priced at $185 found 3 days ago

Denver economy flight packages

Price found within the past 48 hours. Click for updated prices.
Hyatt Regency Denver at Colorado Convention Center
4.0-star property

Hyatt Regency Denver at Colorado Convention Center

9.2/10 Wonderful! (1,164 reviews)

Feb 13 - Feb 17

4 night stay

Ontario (ONT) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $741, price is now $393 per person
$393
per person
found 13 hours ago
The walkable mall area is very close!! Hotel is nice and bed was comfortable. Being able to cast phone to TV was a bonus

Reviewed on Jul 25, 2025

The Village at Steamboat
3.0-star property

The Village at Steamboat

8.8/10 Excellent! (539 reviews)

Feb 19 - Feb 22

3 night stay

Ontario (ONT) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,045, price is now $600 per person
$600
per person
found 19 hours ago
Great location. Loved the swimming pool.

Reviewed on Jun 21, 2025

Legacy Vacation Resorts - Steamboat Hilltop
3.0-star property

Legacy Vacation Resorts - Steamboat Hilltop

8/10 Very Good! (1,297 reviews)

Feb 19 - Feb 22

3 night stay

Ontario (ONT) to Denver (DEN)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $861, price is now $525 per person
$525
per person
found 19 hours ago
This property is in desperate need of a renovation. The staff was excellent!

Reviewed on Jul 28, 2025

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More About Flying To Denver from Riverside

Route Information for Flights from Riverside to Denver

Origin Airport IATA Code
QLA
Destination Airport IATA Code
DEN
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Riverside to Denver

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Frequently asked questions

Are there non-stop flights from Riverside to Denver?
Yes, a direct flight from LAX to Denver, CO (DEN-Denver Intl.) is possible. No less than 6 airlines run nonstop services on this route, which means you'll be able to go with the one that works well with your travel plans. Check out the fares with these well-known carriers:

  • United Airlines
  • Southwest Airlines
  • Delta
  • American Airlines
  • Spirit Airlines

What is the shortest flight from Riverside to Denver?
If the weather is good and everything goes to plan, you could be stepping off the plane at COS from Los Angeles, CA (LAX-Los Angeles Intl.) in as little as 2 hours and 50 minutes. With such a fast flight time, consider taking carry-on luggage only.
What airlines fly from Riverside to Denver most frequently?
There are multiple airlines to choose from when flying between Riverside to Denver. The following carriers travel this route most frequently. United Airlines - (UA) with 234 flights every month Southwest Airlines - (WN) with 156 flights every month Delta - (DL) with 121 flights every month American Airlines - (AA) with 91 flights every month Spirit Airlines - (NK) with 30 flights every month Frontier Airlines - (F9) with 4 flights every month
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

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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.