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Costa Mesa

$103+ Cheap flights from Washington, D.C. (WAS) 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LAX
Jan 29 — Feb 51
Thu 1/29
Thu 2/5
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Costa Mesa are usually found in September or August, booked 54 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Washington, D.C. to Costa Mesa

Cheapest flights from Washington, D.C. to Costa Mesa
Explore the most affordable flight options available from Washington, D.C. to Costa Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 30, 2025.

This United Airlines deal was found by Cheapflights users on 12/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:15 pmIAD - LAX
Nonstop5h 55mUnited Airlines
Thu 1/221:25 pmLAX - IAD
Nonstop4h 54mUnited Airlines
Deal found 12/29$313
This United Airlines deal was found by Cheapflights users on 12/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:59 pmDCA - LAX
1 stop9h 04mUnited Airlines
Thu 1/225:50 amLAX - DCA
1 stop7h 07mUnited Airlines
Deal found 12/29$328
This American Airlines deal was found by Cheapflights users on 12/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:50 pmDCA - LAX
Nonstop5h 52mAmerican Airlines
Thu 1/227:45 amLAX - DCA
Nonstop4h 51mAmerican Airlines
Deal found 12/29$381
This American Airlines deal was found by Cheapflights users on 12/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:30 pmDCA - LAX
1 stop8h 38mAmerican Airlines
Wed 12/3112:50 amLAX - DCA
1 stop7h 06mAmerican Airlines
Deal found 12/29$383
This United Airlines deal was found by Cheapflights users on 12/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:59 pmDCA - LAX
1 stop9h 04mUnited Airlines
Thu 1/15:00 amLAX - DCA
1 stop6h 59mUnited Airlines
Deal found 12/30$384
This United Airlines deal was found by Cheapflights users on 12/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:05 pmIAD - LAX
Nonstop5h 54mUnited Airlines
Wed 1/79:30 pmLAX - IAD
Nonstop4h 54mUnited Airlines
Deal found 12/30$396
This American Airlines deal was found by Cheapflights users on 12/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:30 pmDCA - LAX
1 stop8h 38mAmerican Airlines
Wed 1/712:55 pmLAX - DCA
Nonstop4h 49mAmerican Airlines
Deal found 12/29$406
This United Airlines deal was found by Cheapflights users on 12/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:59 pmDCA - LAX
1 stop9h 04mUnited Airlines
Tue 1/65:50 amLAX - DCA
1 stop7h 07mUnited Airlines
Deal found 12/28$411
This Southwest deal was found by Cheapflights users on 12/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:50 pmIAD - LAX
2 stops15h 55mSouthwest
Mon 1/266:30 amLAX - IAD
1 stop6h 20mSouthwest
Deal found 12/29$428
This Kiwi.com deal was found by Cheapflights users on 12/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:40 pmIAD - LAX
2 stops21h 34mMultiple Airlines
Thu 1/226:05 pmLAX - IAD
1 stop12h 50mMultiple Airlines
Deal found 12/29$435
This United Airlines deal was found by Cheapflights users on 12/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:05 pmIAD - LAX
Nonstop5h 54mUnited Airlines
Mon 1/2612:40 pmLAX - IAD
Nonstop4h 55mUnited Airlines
Deal found 12/29$447
This Southwest deal was found by Cheapflights users on 12/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:35 amDCA - LAX
2 stops9h 50mSouthwest
Thu 1/227:00 amLAX - DCA
1 stop7h 00mSouthwest
Deal found 12/29$452

Find flight deals from Washington, D.C. to Costa Mesa

Keep the following information in mind while searching for Washington, D.C. to Costa Mesa flight deals. Data was last updated December 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$200
(Frontier)

One-way from

$103
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$512
Provider with most accurate pricing for Washington, D.C. (WAS)-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Los Angeles flights.
Search Deals
From Washington, D.C. (WAS) to Costa Mesa
Search Deals
One-way flight from Washington, D.C. (WAS) to Costa Mesa
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($14 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 Washington, D.C. 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 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Costa Mesa that are best for you.

Fly from

Washington, D.C.

Fly to

Costa Mesa

Route

Depart

Return

Price

Washington, D.C.Los Angeles

DCA - LAX

DCALAX

Washington, D.C. Reagan-National

Fri 1/30

5:20 pm-11:56 pm

1 stop9h 36m

Los Angeles

Sat 2/7

8:38 pm-8:36 am

1 stop8h 58m

$255

Washington, D.C.Los Angeles

DCA - LAX

DCALAX

Washington, D.C. Reagan-National

Wed 1/28

9:59 am-12:56 pm

Nonstop5h 57m

Los Angeles

Wed 2/4

12:08 pm-8:00 pm

Nonstop4h 52m

$257

Washington, D.C.Los Angeles

IAD - LAX

IADLAX

Washington, D.C. Dulles Intl

Tue 1/27

8:25 am-11:25 am

Nonstop6h 00m

Los Angeles

Tue 2/3

8:40 am-4:22 pm

Nonstop4h 42m

$257

Washington, D.C.Los Angeles

DCA - LAX

DCALAX

Washington, D.C. Reagan-National

Wed 1/28

9:59 am-12:56 pm

Nonstop5h 57m

Los Angeles

Tue 2/3

12:08 pm-8:00 pm

Nonstop4h 52m

$257

Washington, D.C.Los Angeles

IAD - LAX

IADLAX

Washington, D.C. Dulles Intl

Fri 2/20

10:05 pm-1:09 am

Nonstop6h 04m

Los Angeles

Sun 3/1

9:34 pm-5:26 am

Nonstop4h 52m

$257

Washington, D.C.Los Angeles

DCA - LAX

DCALAX

Washington, D.C. Reagan-National

Thu 1/22

9:59 am-12:56 pm

Nonstop5h 57m

Los Angeles

Wed 1/28

12:08 pm-8:00 pm

Nonstop4h 52m

$257

Washington, D.C.Los Angeles

IAD - LAX

IADLAX

Washington, D.C. Dulles Intl

Thu 2/5

3:19 pm-6:05 pm

Nonstop5h 46m

Los Angeles

Tue 2/10

8:40 am-4:22 pm

Nonstop4h 42m

$257

Washington, D.C.Los Angeles

DCA - LAX

DCALAX

Washington, D.C. Reagan-National

Wed 2/4

9:59 am-12:56 pm

Nonstop5h 57m

Los Angeles

Mon 2/9

12:08 pm-8:00 pm

Nonstop4h 52m

$257

Washington, D.C.Los Angeles

IAD - LAX

IADLAX

Washington, D.C. Dulles Intl

Thu 1/29

10:05 pm-12:59 am

Nonstop5h 54m

Los Angeles

Sun 2/1

11:25 pm-7:14 am

Nonstop4h 49m

$257

Washington, D.C.Los Angeles

DCA - LAX

DCALAX

Washington, D.C. Reagan-National

Sat 2/7

9:59 am-12:56 pm

Nonstop5h 57m

Los Angeles

Wed 2/11

12:08 pm-8:00 pm

Nonstop4h 52m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Costa Mesa

Have a flexible travel schedule? Discover the best time to fly to Costa Mesa from Washington, D.C. 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 Washington, D.C. to Costa Mesa

How far ahead should I book a flight from Washington, D.C. to Costa Mesa?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Costa Mesa. Price data was last updated on December 26, 2025.

The best time to book flights from Washington, D.C. to Costa Mesa is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Costa Mesa?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Costa Mesa (average of $77). Flying from Washington, D.C. to Costa Mesa in December is currently the most expensive (average of $168). 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 WAS to CM3?

Find hourly flight availability from Washington, D.C. 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 30, 2025.

It’s typically best to fly out from Washington, D.C. to Costa Mesa in the evening. Doing so could potentially save you 34% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Washington, D.C. to Costa Mesa?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Costa Mesa. Price data was last updated on December 27, 2025.

Travelers seeking maximum savings on their Washington, D.C. to Costa Mesa flight should consider departing on Wednesday 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 Washington, D.C. to Costa Mesa

Explore weekly flight availability from Washington, D.C. 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 30, 2025.

The most flights from WAS to CM3 are scheduled on a Monday (47 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (42 on average).

How much does it cost to fly round-trip from Washington, D.C. to Costa Mesa?

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 30, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and United Airlines from Washington, D.C. to Costa Mesa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,569 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,569 reviews
Alaska Airlines
8.0
Very good
11,569 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,251 reviews
Alaska Airlines
8.0
Very good
11,569 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
9,121 reviews
Alaska Airlines
8.0
Very good
11,569 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,074 reviews
Alaska Airlines
8.0
Very good
11,569 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Spirit Airlines
6.3
Okay
8,235 reviews
Alaska Airlines
8.0
Very good
11,569 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Costa Mesa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. to Costa Mesa?

    There are many flights that can get you from Washington, D.C. to Costa Mesa in 5h 57m. Fly via JetBlue, Alaska Airlines, or United Airlines to get the fastest option. Washington, D.C. and Costa Mesa are separated by a distance of 2304 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Washington, D.C. to Costa Mesa one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $72. However, be on the lookout for offers from Frontier and Southwest, as they are both options that can get you from Washington, D.C. to Costa Mesa for a low price.

  • What are the most popular routes from Washington, D.C. to Costa Mesa?

    Most travelers choose Washington, D.C. Reagan-National - Los Angeles, Baltimore/Washington - Los Angeles or Washington, D.C. Dulles Intl - Los Angeles when deciding on the best route from Washington, D.C. to Costa Mesa.

  • What are the most reliable airlines from Washington, D.C. to Costa Mesa?

    The top 3 most reliable airlines when flying from Washington, D.C. to Costa Mesa are Egyptair (96%), Ethiopian Air (95%) and Air China (90%).

  • What are the cheapest flights from Washington, D.C. to Costa Mesa?

    On average you can expect to pay $957 for a flight from Washington, D.C. to Costa Mesa. The cheapest flight overall is $148 while the most popular route, (Washington, D.C. Reagan-National - Los Angeles) is currently priced at $161.

  • Can I find deals for flights from Washington, D.C. to Costa Mesa that include hotel bookings?

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

  • How can I find direct flights from Washington, D.C. to Costa Mesa?

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

  • Can I find deals for business class flights from Washington, D.C. to Costa Mesa?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to Costa Mesa?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Costa Mesa (average of $77). Flying from Washington, D.C. to Costa Mesa in December is currently the most expensive (average of $168). 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

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Alternative routes for Washington, D.C. to Costa Mesa

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Washington, D.C. to Costa Mesa

Discover the top 10 airlines that operate flights from Washington, D.C. 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$93Average$225FlexibilityNo cancel feeOn-time65%
FrontierCheapest$118Average$288FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$138Average$363FlexibilityNo cancel feeOn-time85%
JetBlueCheapest$142Average$296FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$170Average$455FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$173Average$441FlexibilityNo cancel feeOn-time69%
DeltaCheapest$186Average$437FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$186Average$443FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$198Average$455FlexibilityNo cancel feeOn-time75%
Sun Country AirCheapest$327Average$360FlexibilityNo cancel feeOn-time83%

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