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Denver

Cheap flights from Irvine, CA to Denver (DEN) - Compare and Save

LAX — DEN
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Denver Intl are usually found in January or September, booked 64 days in advance, depart on a Saturday or Wednesday 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 August 2, 2025.

Round-trip from

$109
(Frontier)

One-way from

$74
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$174
From Irvine to Denver Intl
Search Deals
One-way flight from Irvine to Denver Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Irvine to Denver

Cheapest flights from Irvine to Denver
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 August 2, 2025.

This Frontier deal was found by Cheapflights users on 8/2. 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.
Fri 8/293:30 pmLAX - DEN
Nonstop2h 34mFrontier
Sun 8/3110:55 pmDEN - LAX
Nonstop2h 32mFrontier
Deal found 8/2$109
This Cheapflightsfares deal was found by Cheapflights users on 7/31. 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.
Mon 9/89:03 pmLAX - DEN
Nonstop2h 33mFrontier
Fri 9/1210:55 pmDEN - LAX
Nonstop2h 32mFrontier
Deal found 7/31$110
This Cheapflightsfares deal was found by Cheapflights users on 8/1. 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.
Fri 10/36:35 amLAX - DEN
Nonstop2h 33mFrontier
Sun 10/510:55 pmDEN - LAX
Nonstop2h 32mFrontier
Deal found 8/1$112
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:35 amLAX - DEN
Nonstop2h 33mFrontier
Sat 10/1110:55 pmDEN - LAX
Nonstop2h 30mFrontier
Deal found 7/30$113
This Cheapflightsfares deal was found by Cheapflights users on 8/1. 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.
Fri 9/269:03 pmLAX - DEN
Nonstop2h 33mFrontier
Mon 9/296:34 pmDEN - LAX
Nonstop2h 34mFrontier
Deal found 8/1$116
This Cheapflightsfares deal was found by Cheapflights users on 8/1. 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 11/83:46 pmLAX - DEN
Nonstop2h 35mFrontier
Tue 11/1110:55 pmDEN - LAX
Nonstop2h 30mFrontier
Deal found 8/1$117
This FlightHub deal was found by Cheapflights users on 8/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/266:15 amLAX - DEN
Nonstop2h 34mFrontier
Wed 10/2911:45 amDEN - LAX
Nonstop2h 33mFrontier
Deal found 8/1$119
This Cheapflightsfares deal was found by Cheapflights users on 8/1. 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 8/266:45 amLAX - DEN
Nonstop2h 36mFrontier
Sat 8/304:00 pmDEN - LAX
Nonstop2h 32mFrontier
Deal found 8/1$120
This Cheapflightsfares deal was found by Cheapflights users on 8/1. 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.
Thu 9/252:03 pmLAX - DEN
Nonstop2h 33mFrontier
Sun 9/2810:55 pmDEN - LAX
Nonstop2h 32mFrontier
Deal found 8/1$122
This CheapOair deal was found by Cheapflights users on 7/30. 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.
Sat 9/62:31 pmLAX - DEN
Nonstop2h 33mFrontier
Tue 9/910:55 pmDEN - LAX
Nonstop2h 32mFrontier
Deal found 7/30$123
This Cheapflightsfares deal was found by Cheapflights users on 8/1. 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.
Sun 8/313:30 pmLAX - DEN
Nonstop2h 34mFrontier
Sun 9/710:55 pmDEN - LAX
Nonstop2h 32mFrontier
Deal found 8/1$124
This Frontier deal was found by Cheapflights users on 8/1. 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.
Sat 8/236:38 amLAX - DEN
Nonstop2h 36mFrontier
Sun 8/249:36 amDEN - LAX
1 stop10h 22mFrontier
Deal found 8/1$125

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 August 2, 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

Fri 8/29

3:30 pm-7:04 pm

Nonstop2h 34m

Denver Intl

Sun 8/31

10:55 pm-12:27 am

Nonstop2h 32m

$109

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Mon 9/8

9:03 pm-12:36 am

Nonstop2h 33m

Denver Intl

Fri 9/12

10:55 pm-12:27 am

Nonstop2h 32m

$110

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Fri 10/3

6:35 am-10:08 am

Nonstop2h 33m

Denver Intl

Sun 10/5

10:55 pm-12:27 am

Nonstop2h 32m

$112

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Fri 10/3

6:35 am-10:08 am

Nonstop2h 33m

Denver Intl

Sat 10/11

10:55 pm-12:25 am

Nonstop2h 30m

$113

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Fri 9/26

9:03 pm-12:36 am

Nonstop2h 33m

Denver Intl

Mon 9/29

6:34 pm-8:08 pm

Nonstop2h 34m

$116

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Sun 10/26

6:15 am-9:49 am

Nonstop2h 34m

Denver Intl

Wed 10/29

11:45 am-1:18 pm

Nonstop2h 33m

$119

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Tue 8/26

6:45 am-10:21 am

Nonstop2h 36m

Denver Intl

Sat 8/30

4:00 pm-5:32 pm

Nonstop2h 32m

$120

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Thu 9/25

2:03 pm-5:36 pm

Nonstop2h 33m

Denver Intl

Sun 9/28

10:55 pm-12:27 am

Nonstop2h 32m

$122

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Sat 9/6

2:31 pm-6:04 pm

Nonstop2h 33m

Denver Intl

Tue 9/9

10:55 pm-12:27 am

Nonstop2h 32m

$123

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Sun 8/31

3:30 pm-7:04 pm

Nonstop2h 34m

Denver Intl

Sun 9/7

10:55 pm-12:27 am

Nonstop2h 32m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 60 results
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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 August 1, 2025.

To ensure you get the cheapest price possible for a flight from Irvine to Denver, you should look to book at least 31 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, October is the cheapest month in which you can book a flight from Irvine to Denver (average of $197). Flying from Irvine to Denver in March is currently the most expensive (average of $278). 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 August 2, 2025.

When flying from Irvine to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 27, 2025.

Travelers seeking maximum savings on their Irvine to Denver flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday afternoons 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 August 2, 2025.

The most flights from IR9 to DEN are scheduled on a Thursday (97 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (56 on average).

How much does it cost to fly round-trip from Irvine to Denver?

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 August 2, 2025.
Read through reviews of airlines operating flights from Irvine to Denver, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,983 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,613 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,904 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What airport do you fly into for flights to Denver from Irvine?

    If you book a flight to Denver from Irvine, you will be flying to Denver Intl, which is the city’s only airport. Denver Intl (DEN) is located 18.5 mi from the center of Denver. There are 74 flights from Irvine to Denver Intl per day from 5 different airlines.

  • How popular is this Irvine to Denver flight route?

    This flight path from Irvine to Denver Intl was viewed by 387 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Irvine to Denver one-way?

    One-way options have recently been found by users for as low as $74 on Frontier. Other airlines that offer cheap prices include Hawaiian Airlines from $88 and Alaska Airlines from $94 one-way.

  • What are the most reliable airlines from Irvine to Denver?

    No one likes to see their flight delayed. When booking a flight from Irvine to Denver consider choosing EL AL (87%), Alaska Airlines (84%) or Cathay Pacific (82%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Irvine to Denver?

    On average you can expect to pay $716 for a flight from Irvine to Denver. The cheapest flight overall is $77 while the most popular route, (Los Angeles - Denver Intl) is currently priced at $111.

  • Can I find deals for flights from Irvine to Denver that include hotel bookings?

    Yes. In addition to deals on Irvine to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Irvine to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Irvine to Denver.

  • Can I find deals for business class flights from Irvine to Denver?

    Yes. Cheapflights offers flight deals from Irvine to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Irvine to Denver?

    Currently, October is the cheapest month in which you can book a flight from Irvine to Denver (average of $197). Flying from Irvine to Denver in March is currently the most expensive (average of $278). 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.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Greeley
Cripple Creek
Brighton
Silverthorne
Golden
Thornton
Frisco
Grand Lake
Manitou Springs
Central City
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Longmont
Broomfield

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.
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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 August 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$43Average$143FlexibilityNo cancel feeOn-time62%
DeltaCheapest$116Average$257FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$119Average$279FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$130Average$307FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$141Average$239FlexibilityNo cancel feeOn-time71%

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