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Costa Mesa

$73+ Cheap flights from Denver (DEN) to Costa Mesa, CA

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LAX
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Costa Mesa are usually found in September or January, booked 58 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Denver to Costa Mesa

Keep the following information in mind while searching for Denver to Costa Mesa flight deals. Data was last updated June 12, 2025.

Round-trip from

$133
(Frontier)

One-way from

$73
(Delta)

Popular in

June

Cheapest in

September

Average price

$223
From Denver Intl to Costa Mesa
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One-way flight from Denver Intl to Costa Mesa
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Highest demand for flights based on searches. 9% potential increase in price ($18 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 June 2025
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Find flight deals from Denver to Costa Mesa

Cheapest flights from Denver to Costa Mesa
Explore the most affordable flight options available from Denver to Costa Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/210:55 pmDEN - LAX
Nonstop2h 32mFrontier
Sun 9/76:15 amLAX - DEN
Nonstop2h 34mFrontier
Deal found 6/11$133
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/98:02 amDEN - LAX
Nonstop2h 30mUnited Airlines
Tue 9/911:00 amLAX - DEN
Nonstop2h 25mUnited Airlines
Deal found 6/11$140
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:30 amDEN - LAX
Nonstop2h 38mDelta
Tue 11/112:45 pmLAX - DEN
Nonstop2h 24mDelta
Deal found 6/10$177
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/207:02 pmDEN - LAX
1 stop5h 56mHawaiian Airlines
Thu 11/63:58 pmLAX - DEN
1 stop7h 01mHawaiian Airlines
Deal found 6/11$206
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/45:40 amDEN - LAX
Nonstop2h 25mSouthwest
Sun 7/69:00 pmLAX - DEN
Nonstop2h 25mSouthwest
Deal found 6/11$208
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:17 pmDEN - LAX
1 stop6h 42mAlaska Airlines
Tue 8/268:03 amLAX - DEN
2 stops11h 24mAlaska Airlines
Deal found 6/11$253

Cheapflights Fare Finder

Customize your flight search to find flights from Denver to Costa Mesa 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 June 12, 2025.
Use the filters below to find and compare flights from Denver to Costa Mesa that are best for you.

Fly from

Denver

Fly to

Costa Mesa

Route

Depart

Return

Price

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Tue 9/2

10:55 pm-12:27 am

Nonstop2h 32m

Los Angeles

Sun 9/7

6:15 am-9:49 am

Nonstop2h 34m

$133

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Tue 9/9

8:02 am-9:32 am

Nonstop2h 30m

Los Angeles

Tue 9/9

11:00 am-2:25 pm

Nonstop2h 25m

$140

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Thu 11/27

7:15 pm-8:51 pm

Nonstop2h 36m

Los Angeles

Sat 12/6

7:35 pm-10:58 pm

Nonstop2h 23m

$169

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Mon 10/20

7:02 pm-11:58 pm

1 stop5h 56m

Los Angeles

Thu 11/6

2:00 pm-11:59 pm

1 stop8h 59m

$206

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Thu 11/27

7:19 pm-9:02 pm

Nonstop2h 43m

Los Angeles

Sat 12/6

9:45 am-3:06 pm

1 stop4h 21m

$207

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Fri 7/4

5:40 am-7:05 am

Nonstop2h 25m

Los Angeles

Sun 7/6

9:00 pm-12:25 am

Nonstop2h 25m

$208

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Thu 11/27

6:59 pm-11:59 pm

1 stop6h 00m

Los Angeles

Sat 12/6

10:50 am-6:03 pm

1 stop6h 13m

$238

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Tue 8/12

6:45 am-8:12 am

Nonstop2h 27m

$73

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Tue 10/7

10:10 am-1:40 pm

1 stop4h 30m

$75

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Wed 11/5

3:20 pm-6:25 pm

1 stop4h 05m

$84

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 17 results
1
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Best time to book a flight from Denver to Costa Mesa

Have a flexible travel schedule? Discover the best time to fly to Costa Mesa from Denver 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 Denver to Costa Mesa

How far ahead should I book a flight from Denver to Costa Mesa?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Costa Mesa. Price data was last updated on June 9, 2025.

The price you pay for your flight from Denver to Costa Mesa may vary depending on when you book. For the best chance of a lower fare, look to book 58 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Denver to Costa Mesa?

Currently, January is the cheapest month in which you can book a flight from Denver to Costa Mesa (average of $246). Flying from Denver to Costa Mesa in March is currently the most expensive (average of $327). 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 DEN to CM3?

Find hourly flight availability from Denver to Costa Mesa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denver to Costa Mesa as you normally would.

What is the cheapest day to fly from Denver to Costa Mesa?

Use this chart to determine the cheapest time to fly round-trip from Denver to Costa Mesa. Price data was last updated on June 8, 2025.

Travelers seeking maximum savings on their Denver to Costa Mesa flight should consider departing on Friday at noon 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 Denver to Costa Mesa

Explore weekly flight availability from Denver to Costa Mesa. 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 June 12, 2025.

The most flights from DEN to CM3 are scheduled on a Thursday (102 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (61 on average).

Rainfall in Costa Mesa by month

Plan your trip to Costa Mesa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Costa Mesa ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit Costa Mesa when rainfall is around 0.0 in.

Temperature in Costa Mesa by month

Plan your trip to Costa Mesa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Costa Mesa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing Costa Mesa

Get insights into the airlines that provide service to Costa Mesa. 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 Costa Mesa. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Denver to Costa Mesa. 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

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

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

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

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 Denver to Costa Mesa. 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 from for flights from Denver to Costa Mesa?

    For a flight from Denver to Costa Mesa, you will be flying from Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 86 outbound flights to Costa Mesa per day. 5 airlines have flights to Costa Mesa from Denver Intl on a regular basis.

  • How popular is this Denver to Costa Mesa flight route?

    The Denver Intl to Costa Mesa flight path was viewed by 418 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 Denver to Costa Mesa one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $73. Users have also found prices from $79 and $81 on United Airlines and Frontier, respectively.

  • What are the most reliable airlines from Denver to Costa Mesa?

    No one likes to see their flight delayed. When booking a flight from Denver to Costa Mesa consider choosing Qatar Airways (96%), ANA (93%) or LATAM Airlines (91%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Denver to Costa Mesa?

    Looking at all options, your cheapest flight can be booked for $72. While the most popular route (Denver Intl - Los Angeles) can be booked for $126 on average our data indicates $2,267 when flying from Denver to Costa Mesa.

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

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

  • How can I find direct flights from Denver to Costa Mesa?

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

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

    Yes. Cheapflights offers flight deals from Denver to Costa Mesa 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 Denver to Costa Mesa?

    Currently, January is the cheapest month in which you can book a flight from Denver to Costa Mesa (average of $246). Flying from Denver to Costa Mesa in March is currently the most expensive (average of $327). 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.

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Alternative routes for Denver to Costa Mesa

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Top 5 airlines flying from Denver to Costa Mesa

Discover the top 5 airlines that operate flights from Denver to Costa Mesa. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$29Average$141FlexibilityNo cancel feeOn-time62%
DeltaCheapest$104Average$245FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$117Average$283FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$137Average$313FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$140Average$217FlexibilityNo cancel feeOn-time71%

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