$39+ Cheap flights from Irvine, CA to Denver (DEN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — DEN
Dec 13 — Dec 201
1 adult, Economy
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Find cheap flights from Irvine to Denver with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Irvine to Denver Intl are usually found in January or September, booked 75 days in advance, depart on a Friday or Saturday and return on a Friday
Cheap flight deals from Irvine to Denver
Keep the following information in mind while searching for Irvine to Denver flight deals. Data was last updated November 13, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $77 (Frontier) |
One-way from | $39 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $228 |
Find flight deals from Irvine to Denver
Cheapest flights from Irvine to DenverExplore the most affordable flight options available from Irvine to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.
Explore the most affordable flight options available from Irvine to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.
This Frontier deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:34 amLAX - DEN
Nonstop2h 32mFrontier
Wed 12/3110:51 pmDEN - LAX
Nonstop2h 39mFrontier
Deal found 11/13![Frontier logo]()
$77
This Frontier deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:34 amLAX - DEN
Nonstop2h 32mFrontier
Thu 12/2510:51 pmDEN - LAX
Nonstop2h 39mFrontier
Deal found 11/13![Frontier logo]()
$78
This CheapOair deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/153:30 pmLAX - DEN
1 stop22h 23mFrontier
Fri 12/196:00 amDEN - LAX
Nonstop2h 42mFrontier
Deal found 11/11![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:34 amLAX - DEN
Nonstop2h 32mFrontier
Sun 1/410:51 pmDEN - LAX
Nonstop2h 39mFrontier
Deal found 11/12![Frontier logo]()
$80
This Cheapflightsfares deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/238:58 pmLAX - DEN
Nonstop2h 26mFrontier
Wed 12/3110:51 pmDEN - LAX
Nonstop2h 39mFrontier
Deal found 11/13![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:40 amLAX - DEN
Nonstop2h 32mFrontier
Mon 12/157:50 amDEN - LAX
1 stop4h 56mFrontier
Deal found 11/12![Frontier logo]()
$83
This Cheapflightsfares deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:40 amLAX - DEN
Nonstop2h 32mFrontier
Fri 12/512:59 amDEN - LAX
1 stop12h 48mFrontier
Deal found 11/11![Frontier logo]()
$84
This CheapOair deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:51 pmLAX - DEN
Nonstop2h 26mFrontier
Tue 12/912:59 amDEN - LAX
1 stop12h 48mFrontier
Deal found 11/12![Frontier logo]()
$85
This Cheapflightsfares deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/133:30 pmLAX - DEN
1 stop11h 28mFrontier
Mon 1/510:51 pmDEN - LAX
Nonstop2h 39mFrontier
Deal found 11/11![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/128:51 pmLAX - DEN
Nonstop2h 26mFrontier
Mon 12/156:00 amDEN - LAX
1 stop5h 28mFrontier
Deal found 11/12![Frontier logo]()
$87
This CheapOair deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/128:51 pmLAX - DEN
Nonstop2h 26mFrontier
Sat 12/137:33 amDEN - LAX
1 stop13h 32mFrontier
Deal found 11/12![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/223:30 pmLAX - DEN
1 stop7h 03mFrontier
Tue 1/66:48 pmDEN - LAX
Nonstop2h 40mFrontier
Deal found 11/12![Frontier logo]()
$90
Cheapflights Fare Finder
Customize your flight search to find flights from Irvine to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from Irvine to Denver that are best for you.
Fly from
Irvine
Fly to
Denver
Route
Depart
Return
Price
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Mon 12/8
8:51 pm-12:17 am
Nonstop2h 26m
Denver Intl
Wed 12/10
12:59 am-12:47 pm
1 stop12h 48m
$85
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Fri 1/16
7:10 pm-10:30 pm
Nonstop2h 20m
Denver Intl
Wed 1/21
8:35 am-3:15 pm
2 stops7h 40m
$148
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Wed 12/10
8:40 am-12:10 pm
Nonstop2h 30m
Denver Intl
Wed 12/17
3:20 pm-6:25 pm
1 stop4h 05m
$154
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Tue 1/20
5:00 am-12:15 pm
1 stop6h 15m
Denver Intl
Wed 1/28
1:00 pm-6:35 pm
2 stops6h 35m
$162
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Sat 12/6
3:09 pm-6:32 pm
Nonstop2h 23m
Denver Intl
Mon 12/8
6:25 am-8:05 am
Nonstop2h 40m
$165
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Sat 1/10
7:05 am-3:00 pm
2 stops6h 55m
Denver Intl
Sat 1/17
8:05 am-2:00 pm
2 stops6h 55m
$167
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Wed 1/7
1:45 pm-7:05 pm
1 stop4h 20m
Denver Intl
Wed 1/14
8:35 am-3:15 pm
2 stops7h 40m
$178
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Thu 1/8
5:45 am-12:25 pm
1 stop5h 40m
Denver Intl
Mon 1/12
1:00 pm-6:35 pm
2 stops6h 35m
$182
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Thu 12/11
9:55 am-4:20 pm
1 stop5h 25m
Denver Intl
Sat 1/10
7:55 am-1:30 pm
2 stops6h 35m
$189
Los AngelesDenver
LAX - DEN
LAXDEN
Los Angeles
Thu 1/8
8:24 am-6:41 pm
2 stops9h 17m
Denver Intl
Sun 1/11
7:00 am-1:41 pm
1 stop7h 41m
$202
Showing 1-10 of 23 results
Best time to book a flight from Irvine to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Irvine with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Irvine to Denver
How far ahead should I book a flight from Irvine to Denver?
Use this chart to determine the optimal time to book a round-trip flight from Irvine to Denver. Price data was last updated on November 7, 2025.
To ensure you get the cheapest price possible for a flight from Irvine to Denver, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Irvine to Denver?
Currently, March is the cheapest month in which you can book a flight from Irvine to Denver (average of $36). Flying from Irvine to Denver in September is currently the most expensive (average of $76). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IR9 to DEN?
Find hourly flight availability from Irvine to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.
One of the essential ways to save on airfare from Irvine to Denver is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 29% on airfare.
What is the cheapest day to fly from Irvine to Denver?
Use this chart to determine the cheapest time to fly round-trip from Irvine to Denver. Price data was last updated on November 2, 2025.
Travelers seeking maximum savings on their Irvine to Denver flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Irvine to Denver
Explore weekly flight availability from Irvine to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 13, 2025.
The most flights from IR9 to DEN are scheduled on a Monday (91 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (66 on average).
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated November 13, 2025.
Read through reviews of airlines operating flights from Irvine to Denver, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Related info for your journey
Find useful and relevant information for your journey from Irvine to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsBlack Hawk
Westminster
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Wheat Ridge
Central City
Manitou Springs
Fort Morgan
Brighton
Longmont
Idaho Springs
Parker
Sterling
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Irvine to Denver
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Irvine to Denver
Discover the top 5 airlines that operate flights from Irvine to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$44 | Average$147 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$278 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$122 | Average$259 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$133 | Average$302 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$156 | Average$252 | FlexibilityNo cancel fee | On-time71% |