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Costa Mesa

$60+ Cheap flights from Portland (PDX) 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LAX
jan 17 — jan 241
sáb 1/17
sáb 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Costa Mesa are usually found in January or February, booked 90 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Portland to Costa Mesa

Cheapest flights from Portland to Costa Mesa
Explore the most affordable flight options available from Portland to Costa Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on dezembro 18, 2025.

This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/255:48 pmPDX - LAX
Nonstop2h 37mAlaska Airlines
qua 12/317:55 pmLAX - PDX
Nonstop2h 29mAlaska Airlines
Deal found 12/16$139
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/255:48 pmPDX - LAX
Nonstop2h 37mAlaska Airlines
ter 1/67:00 amLAX - PDX
Nonstop2h 38mAlaska Airlines
Deal found 12/16$168
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/254:26 pmPDX - LAX
Nonstop2h 37mAlaska Airlines
qui 12/259:25 pmLAX - PDX
Nonstop2h 37mAlaska Airlines
Deal found 12/16$188
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/2512:39 pmPDX - LAX
Nonstop2h 22mFrontier
sáb 1/107:00 amLAX - PDX
1 stop28h 15mFrontier
Deal found 12/16$191
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/317:55 pmPDX - LAX
Nonstop2h 33mDelta
qua 1/72:00 pmLAX - PDX
Nonstop2h 25mDelta
Deal found 12/16$197
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/2512:39 pmPDX - LAX
Nonstop2h 22mFrontier
qui 1/19:07 amLAX - PDX
Nonstop2h 30mFrontier
Deal found 12/17$201
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 12/305:39 pmPDX - LAX
Nonstop2h 24mFrontier
qua 1/141:54 pmLAX - PDX
1 stop21h 10mFrontier
Deal found 12/16$207
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/314:26 pmPDX - LAX
Nonstop2h 37mAlaska Airlines
qua 1/71:34 pmLAX - PDX
1 stop7h 13mAlaska Airlines
Deal found 12/16$213
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.
ter 12/305:39 pmPDX - LAX
Nonstop2h 24mMultiple Airlines
qua 1/71:34 pmLAX - PDX
1 stop7h 13mMultiple Airlines
Deal found 12/16$217
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/182:29 pmPDX - LAX
1 stop6h 02mFrontier
seg 1/123:02 pmLAX - PDX
Nonstop2h 37mFrontier
Deal found 12/16$220
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/244:26 pmPDX - LAX
Nonstop2h 37mAlaska Airlines
qua 12/317:55 pmLAX - PDX
Nonstop2h 29mAlaska Airlines
Deal found 12/17$223

Find flight deals from Portland to Costa Mesa

Keep the following information in mind while searching for Portland to Costa Mesa flight deals. Data was last updated dezembro 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$127
(Alaska Airlines)

One-way from

$60
(Booking.com)

Popular in

December

Cheapest in

January

Average price

$245
Provider with most accurate pricing for Portland-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Los Angeles flights.
Search Deals
From Portland to Costa Mesa
Search Deals
One-way flight from Portland to Costa Mesa
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($15 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 December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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 dezembro 18, 2025.
Use the filters below to find and compare flights from Portland to Costa Mesa that are best for you.

Fly from

Portland

Fly to

Costa Mesa

Route

Depart

Return

Price

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

qui 1/15

6:30 am-9:00 am

Nonstop2h 30m

Los Angeles

qua 1/21

6:15 pm-8:40 pm

Nonstop2h 25m

$127

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

qua 1/21

2:57 pm-5:22 pm

Nonstop2h 25m

Los Angeles

qui 1/29

6:00 pm-8:34 pm

Nonstop2h 34m

$127

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

qui 3/12

1:09 pm-3:33 pm

Nonstop2h 24m

Los Angeles

qua 3/18

7:55 pm-10:23 pm

Nonstop2h 28m

$127

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

qua 2/11

1:02 pm-3:25 pm

Nonstop2h 23m

Los Angeles

dom 2/15

7:00 am-9:25 am

Nonstop2h 25m

$127

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

sáb 1/10

3:07 pm-6:47 pm

1 stop3h 40m

Los Angeles

sáb 1/17

1:03 pm-4:49 pm

1 stop3h 46m

$136

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

sex 1/23

9:30 pm-11:55 pm

Nonstop2h 25m

Los Angeles

dom 1/25

7:00 am-9:35 am

Nonstop2h 35m

$137

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

qui 3/12

9:30 pm-11:59 pm

Nonstop2h 29m

Los Angeles

seg 3/16

9:08 pm-11:42 pm

Nonstop2h 34m

$137

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

qui 1/22

9:30 pm-11:55 pm

Nonstop2h 25m

Los Angeles

seg 1/26

11:06 am-1:41 pm

Nonstop2h 35m

$137

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

ter 1/27

9:10 am-3:42 pm

1 stop6h 32m

Los Angeles

sex 1/30

1:56 pm-8:47 pm

1 stop6h 51m

$146

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

sex 2/20

3:00 pm-9:28 pm

1 stop6h 28m

Los Angeles

ter 2/24

8:52 am-4:47 pm

1 stop7h 55m

$146

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 22 results
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Best time to book a flight from Portland to Costa Mesa

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

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Costa Mesa. Price data was last updated on December 12, 2025.

The best time to book flights from Portland to Costa Mesa is 90 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 Portland to Costa Mesa?

Currently, January is the cheapest month in which you can book a flight from Portland to Costa Mesa (average of $48). Flying from Portland to Costa Mesa in November is currently the most expensive (average of $107). 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 PDX to CM3?

Find hourly flight availability from Portland 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 dezembro 18, 2025.

One of the essential ways to save on airfare from Portland to Costa Mesa is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 21% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Portland to Costa Mesa. Price data was last updated on December 13, 2025.

Travelers seeking maximum savings on their Portland to Costa Mesa flight should consider departing on Saturday evenings 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.

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 dezembro 18, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Portland 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
11,477 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
Alaska Airlines
8.0
Very good
11,477 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
Delta
7.9
Good
8,005 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
Hawaiian Airlines
7.8
Good
2,820 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
American Airlines
7.2
Good
11,055 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
Frontier
5.8
Fair
3,081 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.

Related info for your journey

Find useful and relevant information for your journey from Portland 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 Portland to Costa Mesa?

    Most people fly from Portland (PDX) if they book a flight from Portland to Costa Mesa. On average, Portland has 26 outbound flights to Costa Mesa per day from 8 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.

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

    The Portland to Costa Mesa flight path was viewed by 211 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 Portland to Costa Mesa?

    Airlines like Delta and Alaska Airlines fly from Portland to Costa Mesa in about 2h 25m. The time it takes to get you to your destination is usually consistent. There are 834 mi between Portland and Costa Mesa. All flights are typically nonstop.

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

    The cheapest airlines for a one-way flight from Portland to Costa Mesa are Frontier ($37), Spirit Airlines ($43), and American Airlines ($78).

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Portland to Costa Mesa on time: Horizon Air (100%), Air France (95%), Aeromexico (95%).

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

    On average you can expect to pay $628 for a flight from Portland to Costa Mesa. The cheapest flight overall is $49 while the most popular route, (Portland - Los Angeles) is currently priced at $67.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Portland to Costa Mesa (average of $48). Flying from Portland to Costa Mesa in November is currently the most expensive (average of $107). 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 Portland to Costa Mesa

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Portland to Costa Mesa

Discover the top 8 airlines that operate flights from Portland 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 dezembro 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$49Average$145FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$62Average$189FlexibilityNo cancel feeOn-time65%
DeltaCheapest$83Average$280FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$88Average$247FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$147Average$281FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$148Average$248FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$156Average$333FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$158Average$309FlexibilityNo cancel feeOn-time63%

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