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Costa Mesa

$79+ 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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LAX
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 57 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap 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 July 31, 2025.

Round-trip from

$124
(Cheapflightsfares)

One-way from

$78
(CheapOair)

Popular in

November

Cheapest in

January

Average price

$197
From Portland to Costa Mesa
Search Deals
One-way flight from Portland 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 ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 31, 2025.

This CheapOair deal was found by Cheapflights users on 7/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/191:08 pmPDX - LAX
Nonstop2h 28mFrontier
Sun 9/219:44 amLAX - PDX
Nonstop2h 24mFrontier
Deal found 7/30$124
This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1110:23 amPDX - LAX
1 stop9h 53mSpirit Airlines
Sat 8/166:45 amLAX - PDX
1 stop12h 12mSpirit Airlines
Deal found 7/28$127
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Tue 11/48:04 pmPDX - LAX
1 stop12h 13mMultiple Airlines
Sat 11/89:43 amLAX - PDX
Nonstop2h 32mMultiple Airlines
Deal found 7/30$130
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1412:30 pmPDX - LAX
Nonstop2h 25mAlaska Airlines
Wed 10/2211:00 amLAX - PDX
Nonstop2h 29mAlaska Airlines
Deal found 7/30$157
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/302:56 pmPDX - LAX
Nonstop2h 32mAmerican Airlines
Sun 8/316:54 pmLAX - PDX
Nonstop2h 20mAmerican Airlines
Deal found 7/30$165
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1512:39 pmPDX - LAX
Nonstop2h 22mDelta
Tue 10/215:55 pmLAX - PDX
1 stop6h 02mDelta
Deal found 7/30$167
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Sat 8/305:47 pmPDX - LAX
1 stop5h 01mHawaiian Airlines
Sun 8/317:00 amLAX - PDX
Nonstop2h 25mHawaiian Airlines
Deal found 7/30$169

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 July 31, 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

Fri 9/19

1:08 pm-3:36 pm

Nonstop2h 28m

Los Angeles

Sun 9/21

9:44 am-12:08 pm

Nonstop2h 24m

$124

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

Mon 8/11

10:23 am-8:16 pm

1 stop9h 53m

Los Angeles

Sat 8/16

6:45 am-6:57 pm

1 stop12h 12m

$127

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

Tue 11/4

8:04 pm-8:17 am

1 stop12h 13m

Los Angeles

Sat 11/8

9:43 am-12:15 pm

Nonstop2h 32m

$130

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

Tue 10/14

5:45 pm-8:11 pm

Nonstop2h 26m

Los Angeles

Sat 10/25

7:01 am-9:30 am

Nonstop2h 29m

$157

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

Sat 8/30

2:56 pm-5:28 pm

Nonstop2h 32m

Los Angeles

Sun 8/31

6:54 pm-9:14 pm

Nonstop2h 20m

$165

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

Wed 10/15

5:50 pm-10:29 pm

1 stop4h 39m

Los Angeles

Wed 10/22

7:00 am-9:28 am

Nonstop2h 28m

$167

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

Sat 8/30

5:47 pm-10:48 pm

1 stop5h 01m

Los Angeles

Sun 8/31

7:00 am-9:25 am

Nonstop2h 25m

$169

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

Fri 11/7

10:31 pm-11:53 am

1 stop13h 22m

$79

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

Mon 9/8

1:08 pm-3:36 pm

Nonstop2h 28m

$80

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

Sat 9/13

10:35 am-4:05 pm

1 stop5h 30m

$87

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 14 results
1
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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 July 25, 2025.

The best time to book flights from Portland to Costa Mesa is 57 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 $246). Flying from Portland to Costa Mesa in March is currently the most expensive (average of $326). 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 July 31, 2025.

When flying from Portland to Costa Mesa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 27, 2025.

Travelers seeking maximum savings on their Portland to Costa Mesa flight should consider departing on Saturday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portland to Costa Mesa

Explore weekly flight availability from Portland 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 July 31, 2025.

The most flights from PDX to CM3 are scheduled on a Monday (93 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (47 on average).

How much does it cost to fly round-trip from Portland 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 July 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

ZLO - LAX

I liked flying Alaska. One exception; On the flight from Manzanillo to LA the air conditioner was producing too much cold air that kept me cold during the flight.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

ZLO - LAX

I liked flying Alaska. One exception; On the flight from Manzanillo to LA the air conditioner was producing too much cold air that kept me cold during the flight.
Southwest
8.0
Very good
4,244 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

ZLO - LAX

I liked flying Alaska. One exception; On the flight from Manzanillo to LA the air conditioner was producing too much cold air that kept me cold during the flight.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

ZLO - LAX

I liked flying Alaska. One exception; On the flight from Manzanillo to LA the air conditioner was producing too much cold air that kept me cold during the flight.
Hawaiian Airlines
7.8
Good
2,610 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

ZLO - LAX

I liked flying Alaska. One exception; On the flight from Manzanillo to LA the air conditioner was producing too much cold air that kept me cold during the flight.
United Airlines
7.4
Good
8,902 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

ZLO - LAX

I liked flying Alaska. One exception; On the flight from Manzanillo to LA the air conditioner was producing too much cold air that kept me cold during the flight.

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 69 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 225 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 Portland to Costa Mesa one-way?

    The cheapest airlines for a one-way flight from Portland to Costa Mesa are Spirit Airlines ($78), Frontier ($80), and Southwest ($87).

  • 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: SAUDIA (96%), Iberia (96%), KLM (96%).

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

    On average you can expect to pay $1,581 for a flight from Portland to Costa Mesa. The cheapest flight overall is $74 while the most popular route, (Portland - Los Angeles) is currently priced at $107.

  • 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 $246). Flying from Portland to Costa Mesa in March is currently the most expensive (average of $326). 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 Portland to Costa Mesa

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$42Average$127FlexibilityNo cancel feeOn-time65%
FrontierCheapest$47Average$134FlexibilityNo cancel feeOn-time62%
DeltaCheapest$88Average$288FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$89Average$249FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$139Average$310FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$146Average$270FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$156Average$317FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$158Average$319FlexibilityNo cancel feeOn-time63%

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