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$48+ 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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — DEN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 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 October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$83
(Frontier)

One-way from

$48
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$192
Provider with most accurate pricing for Los Angeles-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Denver Intl flights.
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From Irvine to Denver Intl
Search Deals
One-way flight from Irvine to Denver Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 30, 2025.

This Frontier deal was found by Cheapflights users on 10/29. 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 12/411:00 amLAX - DEN
1 stop8h 09mFrontier
Mon 12/810:50 pmDEN - LAX
Nonstop2h 39mFrontier
Deal found 10/29$83
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 12/58:51 pmLAX - DEN
Nonstop2h 26mFrontier
Sun 12/710:50 pmDEN - LAX
Nonstop2h 39mFrontier
Deal found 10/28$84
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:40 pmLAX - DEN
1 stop6h 19mFrontier
Wed 11/1911:45 amDEN - LAX
Nonstop2h 33mFrontier
Deal found 10/30$86
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 11/112:48 pmLAX - DEN
Nonstop2h 37mFrontier
Sat 11/158:45 pmDEN - LAX
1 stop13h 41mFrontier
Deal found 10/28$87
This Flightnetwork deal was found by Cheapflights users on 10/29. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/112:48 pmLAX - DEN
Nonstop2h 37mFrontier
Mon 11/1712:59 amDEN - LAX
1 stop12h 26mFrontier
Deal found 10/29$88
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:00 amLAX - DEN
Nonstop2h 35mFrontier
Tue 11/1811:45 amDEN - LAX
Nonstop2h 33mFrontier
Deal found 10/30$89
This Frontier deal was found by Cheapflights users on 10/29. 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 11/127:00 amLAX - DEN
Nonstop2h 35mFrontier
Wed 11/122:03 pmDEN - LAX
1 stop4h 41mFrontier
Deal found 10/29$90
This Frontier deal was found by Cheapflights users on 10/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1511:40 amLAX - DEN
Nonstop2h 38mFrontier
Fri 11/287:51 amDEN - LAX
Nonstop2h 45mFrontier
Deal found 10/30$91
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Tue 12/27:00 amLAX - DEN
Nonstop2h 33mFrontier
Sat 12/65:01 pmDEN - LAX
Nonstop2h 37mFrontier
Deal found 10/28$92
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 12/27:00 amLAX - DEN
Nonstop2h 33mFrontier
Tue 12/95:01 pmDEN - LAX
Nonstop2h 37mFrontier
Deal found 10/28$93
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 11/112:48 pmLAX - DEN
Nonstop2h 37mFrontier
Thu 11/136:00 amDEN - LAX
1 stop10h 22mFrontier
Deal found 10/29$94

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 October 30, 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

Sat 12/13

8:15 am-11:44 am

Nonstop2h 29m

Denver Intl

Wed 12/17

6:25 am-8:05 am

Nonstop2h 40m

$139

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Sat 12/13

3:09 pm-6:32 pm

Nonstop2h 23m

Denver Intl

Mon 12/22

6:25 pm-7:58 pm

Nonstop2h 33m

$148

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Wed 12/24

6:42 pm-10:09 pm

Nonstop2h 27m

Denver Intl

Tue 12/30

6:00 am-7:40 am

Nonstop2h 40m

$157

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Thu 12/18

8:55 pm-12:24 am

Nonstop2h 29m

Denver Intl

Mon 12/22

6:45 am-8:28 am

Nonstop2h 43m

$157

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Wed 11/19

8:40 am-12:10 pm

Nonstop2h 30m

Denver Intl

Mon 11/24

10:30 pm-12:05 am

Nonstop2h 35m

$164

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Thu 2/5

9:40 am-3:50 pm

1 stop5h 10m

Denver Intl

Mon 2/9

4:15 pm-8:40 pm

2 stops5h 25m

$182

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Fri 12/5

12:40 pm-3:55 pm

Nonstop2h 15m

Denver Intl

Tue 12/9

1:25 pm-4:40 pm

1 stop4h 15m

$183

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Mon 11/24

11:02 am-2:27 pm

Nonstop2h 25m

Denver Intl

Fri 11/28

8:03 am-9:40 am

Nonstop2h 37m

$184

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Fri 1/23

2:56 pm-11:36 pm

1 stop7h 40m

Denver Intl

Wed 1/28

7:00 am-3:42 pm

1 stop9h 42m

$186

Los AngelesDenver

LAX - DEN

LAXDEN

Los Angeles

Mon 2/2

7:00 am-4:13 pm

1 stop8h 13m

Denver Intl

Fri 2/6

11:49 am-5:24 pm

1 stop6h 35m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 23 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 October 24, 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 October 30, 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 39% 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 October 26, 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.

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 October 30, 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.
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
7,998 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,998 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,035 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,122 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 37 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 408 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Irvine to Denver?

    Delta and United Airlines can get you from Irvine to Denver in just under 2h 27m. Your travel time will be generally consistent. The distance between Irvine and Denver is about 860 mi. All flights are typically nonstop.

  • 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 $59 on Delta. Other airlines that offer cheap prices include United Airlines from $59 and Southwest from $59 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 SWISS (100%), Asiana Airlines (93%) or LATAM Airlines (93%) 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 $604 for a flight from Irvine to Denver. The cheapest flight overall is $61 while the most popular route, (Los Angeles - Denver Intl) is currently priced at $54.

  • 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, 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.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Central City
Manitou Springs
Fort Morgan
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

Browse thousands of different options on Cheapflights for your next trip

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$44Average$145FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$118Average$277FlexibilityNo cancel feeOn-time63%
DeltaCheapest$120Average$260FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$133Average$303FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$155Average$252FlexibilityNo cancel feeOn-time71%

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