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Costa Mesa

$51+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LAX
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Costa Mesa are usually found in February or January, booked 75 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap 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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/3110:29 pmDEN - LAX
1 stop14h 35mFrontier
Tue 1/63:14 pmLAX - DEN
Nonstop2h 33mFrontier
Deal found 12/16$107
This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:00 amDEN - LAX
1 stop14h 31mFrontier
Tue 1/207:00 amLAX - DEN
Nonstop2h 30mFrontier
Deal found 12/15$111
This Expedia deal was found by Cheapflights users on 12/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:35 amDEN - LAX
1 stop10h 39mFrontier
Wed 12/316:34 amLAX - DEN
Nonstop2h 32mFrontier
Deal found 12/17$120
This Expedia deal was found by Cheapflights users on 12/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:29 pmDEN - LAX
1 stop12h 44mFrontier
Wed 1/73:14 pmLAX - DEN
Nonstop2h 33mFrontier
Deal found 12/17$123
This Frontier deal was found by Cheapflights users on 12/15. 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 12/246:35 amDEN - LAX
1 stop10h 39mFrontier
Mon 1/56:34 amLAX - DEN
Nonstop2h 32mFrontier
Deal found 12/15$144
This Frontier deal was found by Cheapflights users on 12/16. 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 12/3110:51 pmDEN - LAX
Nonstop2h 39mFrontier
Sat 1/107:00 amLAX - DEN
Nonstop2h 33mFrontier
Deal found 12/16$158

Find 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 December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$72
(Super.com)

One-way from

$51
(Priceline)

Popular in

June

Cheapest in

February

Average price

$200
Provider with most accurate pricing for Denver Intl-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Los Angeles flights.
Search Deals
From Denver Intl to Costa Mesa
Search Deals
One-way flight from Denver Intl to Costa Mesa
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 18, 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

Thu 2/12

12:20 pm-9:20 pm

1 stop10h 00m

Los Angeles

Thu 2/19

11:30 am-2:56 pm

Nonstop2h 26m

$125

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Wed 1/21

1:20 pm-10:40 pm

1 stop10h 20m

Los Angeles

Sun 1/25

8:57 pm-8:54 am

1 stop10h 57m

$149

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Wed 1/14

3:48 pm-5:25 pm

Nonstop2h 37m

Los Angeles

Sat 1/17

8:50 am-12:19 pm

Nonstop2h 29m

$174

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Sun 2/1

9:42 am-11:23 am

Nonstop2h 41m

Los Angeles

Sat 2/14

11:08 am-2:34 pm

Nonstop2h 26m

$177

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Wed 2/25

9:11 pm-10:55 pm

Nonstop2h 44m

Los Angeles

Sun 3/1

4:10 pm-7:37 pm

Nonstop2h 27m

$177

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Wed 1/21

12:34 pm-8:05 pm

2 stops8h 31m

Los Angeles

Wed 1/28

1:56 pm-11:35 pm

1 stop8h 39m

$196

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Sun 2/1

10:01 am-4:18 pm

1 stop7h 17m

Los Angeles

Sat 2/14

3:22 pm-9:00 pm

1 stop4h 38m

$197

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Fri 1/16

8:50 pm-10:28 pm

Nonstop2h 38m

Los Angeles

Fri 1/23

7:01 am-10:30 am

Nonstop2h 29m

$197

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Thu 2/12

12:55 pm-2:43 pm

Nonstop2h 48m

Los Angeles

Fri 2/20

2:45 pm-6:08 pm

Nonstop2h 23m

$226

DenverLos Angeles

DEN - LAX

DENLAX

Denver Intl

Sat 1/17

1:52 pm-3:26 pm

Nonstop2h 34m

Los Angeles

Sun 1/18

4:10 pm-7:37 pm

Nonstop2h 27m

$227

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 23 results
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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 December 12, 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 75 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, February is the cheapest month in which you can book a flight from Denver to Costa Mesa (average of $38). Flying from Denver to Costa Mesa in June is currently the most expensive (average of $97). 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 December 18, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 38% on flights from Denver to Costa Mesa by exploring options for tickets in the morning.

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 December 13, 2025.

Travelers seeking maximum savings on their Denver to Costa Mesa flight should consider departing on Wednesday 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 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 December 18, 2025.

The most flights from DEN to CM3 are scheduled on a Thursday (96 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (36 on average).

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 December 18, 2025.
Read through reviews of airlines operating flights from Denver to Costa Mesa, 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
7.9
Good
4,250 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

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
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

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
8,005 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

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
9,091 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

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
11,054 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

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
3,081 reviews
Southwest
7.9
Good
4,250 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

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 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 58 outbound flights to Costa Mesa per day. 6 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 358 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 Denver to Costa Mesa?

    Departing from Denver to Costa Mesa will take you 2h 37m. Airlines will cover a distance of 860 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $39. Users have also found prices from $69 and $69 on American Airlines and Southwest, 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 Volaris (100%), WestJet (99%) or China Eastern (97%) 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 $40. While the most popular route (Denver Intl - Los Angeles) can be booked for $59 on average, our data indicates $955 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, February is the cheapest month in which you can book a flight from Denver to Costa Mesa (average of $38). Flying from Denver to Costa Mesa in June is currently the most expensive (average of $97). 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 6 airlines flying from Denver to Costa Mesa

Discover the top 6 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$150FlexibilityNo cancel feeOn-time62%
DeltaCheapest$79Average$246FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$119Average$274FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$129Average$292FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$150Average$225FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$185Average$227FlexibilityNo cancel feeOn-time75%

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