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Costa Mesa

$71+ Cheap flights from Chicago (CHI) 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LAX
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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The best prices from Chicago to Costa Mesa are usually found in September or October, booked 68 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Chicago to Costa Mesa

Keep the following information in mind while searching for Chicago to Costa Mesa flight deals. Data was last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$122
(FlightHub)

One-way from

$71
(Cheapflightsfares)

Popular in

March

Cheapest in

September

Average price

$288
Provider with most accurate pricing for Chicago (CHI)-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Los Angeles flights.
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From Chicago (CHI) to Costa Mesa
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One-way flight from Chicago (CHI) to Costa Mesa
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Highest demand for flights based on searches. 6% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Chicago to Costa Mesa

Cheapest flights from Chicago to Costa Mesa
Explore the most affordable flight options available from Chicago to Costa Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This FlightHub deal was found by Cheapflights users on 2/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/28:09 amORD - LAX
1 stop8h 39mMultiple Airlines
Mon 4/75:25 pmLAX - ORD
1 stop9h 43mMultiple Airlines
Deal found 2/22$122
This Flightnetwork deal was found by Cheapflights users on 2/21. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/108:44 pmMDW - LAX
1 stop17h 20mFrontier
Tue 3/1810:40 amLAX - MDW
1 stop11h 37mFrontier
Deal found 2/21$123
This Cheapflightsfares deal was found by Cheapflights users on 2/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/259:57 pmORD - LAX
1 stop11h 05mSpirit Airlines
Tue 4/111:47 pmLAX - ORD
Nonstop3h 59mSpirit Airlines
Deal found 2/22$123
This Mytrip deal was found by Cheapflights users on 2/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/410:56 amORD - LAX
1 stop8h 48mFrontier
Tue 3/49:30 pmLAX - ORD
1 stop8h 43mFrontier
Deal found 2/22$134
This Southwest deal was found by Cheapflights users on 2/20. 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.
Tue 5/61:50 pmMDW - LAX
Nonstop4h 30mSouthwest
Wed 5/75:20 pmLAX - MDW
Nonstop4h 05mSouthwest
Deal found 2/20$179
This Delta deal was found by Cheapflights users on 2/21. 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 4/182:15 pmORD - LAX
1 stop10h 24mDelta
Wed 4/232:00 pmLAX - ORD
1 stop7h 59mDelta
Deal found 2/21$183
This American Airlines deal was found by Cheapflights users on 2/22. 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.
Tue 3/187:17 pmORD - LAX
Nonstop4h 35mAmerican Airlines
Mon 3/2412:20 amLAX - ORD
Nonstop4h 05mAmerican Airlines
Deal found 2/22$189
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Sat 3/158:02 pmORD - LAX
Nonstop4h 52mUnited Airlines
Mon 3/175:45 amLAX - ORD
Nonstop4h 08mUnited Airlines
Deal found 2/22$234
This Delta deal was found by Cheapflights users on 2/21. 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.
Tue 4/82:57 pmMDW - LAX
1 stop6h 40mDelta
Fri 5/912:45 amLAX - MDW
1 stop5h 54mDelta
Deal found 2/21$257

Find flights from Chicago to Costa Mesa within your budget

Customize your flight search to find flights from Chicago 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 February 22, 2025.

Fly from

Chicago

Fly to

Costa Mesa

Route

Depart

Return

Price

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Wed 4/2

8:09 am-2:48 pm

1 stop8h 39m

Los Angeles

Mon 4/7

5:25 pm-5:08 am

1 stop9h 43m

$122

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Mon 3/10

6:40 am-8:32 am

1 stop27h 52m

Los Angeles

Tue 3/18

10:40 am-12:17 am

1 stop11h 37m

$123

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Tue 3/25

9:57 pm-7:02 am

1 stop11h 05m

Los Angeles

Tue 4/1

11:47 pm-5:46 am

Nonstop3h 59m

$123

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Tue 3/4

10:56 am-5:44 pm

1 stop8h 48m

Los Angeles

Tue 3/4

9:30 pm-8:13 am

1 stop8h 43m

$134

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Tue 5/6

1:50 pm-4:20 pm

Nonstop4h 30m

Los Angeles

Wed 5/7

5:20 pm-11:25 pm

Nonstop4h 05m

$179

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Fri 4/18

2:15 pm-8:54 pm

1 stop8h 39m

Los Angeles

Fri 4/25

7:00 am-5:30 pm

1 stop8h 30m

$183

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Tue 3/18

7:17 pm-9:52 pm

Nonstop4h 35m

Los Angeles

Mon 3/24

12:20 am-6:25 am

Nonstop4h 05m

$189

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Sat 3/15

8:02 pm-10:54 pm

Nonstop4h 52m

Los Angeles

Mon 3/17

5:45 am-11:53 am

Nonstop4h 08m

$234

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Tue 4/8

2:57 pm-7:37 pm

1 stop6h 40m

Los Angeles

Fri 5/9

12:45 am-8:39 am

1 stop5h 54m

$257

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Mon 3/17

7:48 am-3:09 pm

1 stop9h 21m

$71

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 24 results
1
2
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Best time to book a flight from Chicago to Costa Mesa

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

Travel insights for flights from Chicago to Costa Mesa

Get recent, data-driven insights about flights from Chicago to Costa Mesa including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Costa Mesa. Price data was last updated on February 14, 2025.

To ensure you get the cheapest price possible for a flight from Chicago to Costa Mesa, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Chicago to Costa Mesa (average of $246). Flying from Chicago to Costa Mesa in March is currently the most expensive (average of $344). 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 CHI to CM3?

Find hourly flight availability from Chicago 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 February 22, 2025.

When flying from Chicago 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 Chicago to Costa Mesa?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Costa Mesa. Price data was last updated on February 16, 2025.

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

Weekly flight availability from Chicago to Costa Mesa

Explore weekly flight availability from Chicago 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 February 22, 2025.

The most flights from CHI to CM3 are scheduled on a Friday (99 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (70 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 February 22, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Chicago to Costa Mesa have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,395 reviews

Food

7.1

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Southwest
8.1
Very good
4,395 reviews
Southwest
8.1
Very good
4,395 reviews

Food

7.1

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,395 reviews

Food

7.1

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Delta
8.0
Very good
8,203 reviews
Southwest
8.1
Very good
4,395 reviews

Food

7.1

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

United Airlines
7.4
Good
8,754 reviews
Southwest
8.1
Very good
4,395 reviews

Food

7.1

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Allegiant Air
7.3
Good
764 reviews
Southwest
8.1
Very good
4,395 reviews

Food

7.1

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 are the cheapest airlines to fly from Chicago to Costa Mesa one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $71. However, be on the lookout for offers from Frontier and Southwest, as they are both options that can get you from Chicago to Costa Mesa for a low price.

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

    Consider Finnair (92%), Royal Jordanian (88%) or Japan Airlines (86%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Costa Mesa.

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

    Looking at all options, your cheapest flight can be booked for $68. While the most popular route (Chicago O'Hare Intl - Los Angeles) can be booked for $77 on average our data indicates $1,115 when flying from Chicago to Costa Mesa.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Chicago to Costa Mesa (average of $246). Flying from Chicago to Costa Mesa in March is currently the most expensive (average of $344). 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 Chicago to Costa Mesa

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Top 9 airlines flying from Chicago to Costa Mesa

Discover the top 9 airlines that operate flights from Chicago 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$54Average$164FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$89Average$257FlexibilityNo cancel feeOn-time65%
FrontierCheapest$109Average$200FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$137Average$399FlexibilityNo cancel feeOn-time69%
Sun Country AirCheapest$147Average$350FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$152Average$453FlexibilityNo cancel feeOn-time63%
DeltaCheapest$177Average$441FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$179Average$365FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$206Average$501FlexibilityNo cancel feeOn-time75%
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