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Costa Mesa

$112+ Cheap flights from Boston (BOS) 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LAX
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Costa Mesa are usually found in September or January, booked 61 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Find flight deals from Boston to Costa Mesa

Cheapest flights from Boston to Costa Mesa
Explore the most affordable flight options available from Boston to Costa Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This United Airlines deal was found by Cheapflights users on 11/13. 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 12/37:15 amBOS - LAX
1 stop8h 50mUnited Airlines
Sun 12/78:24 amLAX - BOS
Nonstop5h 30mUnited Airlines
Deal found 11/13$214
This Mytrip deal was found by Cheapflights users on 11/12. 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.
Sun 11/239:54 pmBOS - LAX
1 stop14h 16mSpirit Airlines
Tue 12/212:19 amLAX - BOS
2 stops20h 34mSpirit Airlines
Deal found 11/12$215
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 11/269:54 pmBOS - LAX
1 stop26h 36mMultiple Airlines
Wed 12/173:30 pmLAX - BOS
2 stops15h 38mMultiple Airlines
Deal found 11/12$216
This JetBlue deal was found by Cheapflights users on 11/12. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:30 pmBOS - LAX
Nonstop6h 29mJetBlue
Thu 12/1110:44 amLAX - BOS
Nonstop5h 20mJetBlue
Deal found 11/12$217
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 12/39:54 pmBOS - LAX
1 stop18h 17mMultiple Airlines
Sat 12/610:39 pmLAX - BOS
1 stop8h 43mMultiple Airlines
Deal found 11/12$218
This United Airlines deal was found by Cheapflights users on 11/12. 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 11/1911:45 amBOS - LAX
1 stop9h 12mUnited Airlines
Sat 12/610:55 pmLAX - BOS
Nonstop5h 31mUnited Airlines
Deal found 11/12$219
This Trip.com deal was found by Cheapflights users on 11/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/199:20 amBOS - LAX
Nonstop6h 29mJetBlue
Wed 11/266:45 amLAX - BOS
Nonstop5h 22mJetBlue
Deal found 11/12$220
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 11/229:54 pmBOS - LAX
1 stop14h 16mMultiple Airlines
Wed 12/246:00 amLAX - BOS
1 stop16h 14mMultiple Airlines
Deal found 11/13$221
This United Airlines deal was found by Cheapflights users on 11/12. 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 11/198:30 amBOS - LAX
Nonstop6h 35mUnited Airlines
Wed 11/2610:51 pmLAX - BOS
Nonstop5h 29mUnited Airlines
Deal found 11/12$222
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Sun 11/2310:46 amBOS - LAX
1 stop10h 37mFrontier
Wed 11/263:18 pmLAX - BOS
2 stops14h 54mFrontier
Deal found 11/11$223
This Southwest deal was found by Cheapflights users on 11/12. 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 12/95:30 amBOS - LAX
1 stop8h 15mSouthwest
Sun 12/1410:35 amLAX - BOS
1 stop10h 05mSouthwest
Deal found 11/12$224

Cheap flight deals from Boston to Costa Mesa

Keep the following information in mind while searching for Boston to Costa Mesa flight deals. Data was last updated November 13, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$214
(United Airlines)

One-way from

$112
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$385
Provider with most accurate pricing for Boston Logan Intl-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Los Angeles flights.
Search Deals
From Boston Logan Intl to Costa Mesa
Search Deals
One-way flight from Boston Logan Intl to Costa Mesa
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 November 13, 2025.
Use the filters below to find and compare flights from Boston to Costa Mesa that are best for you.

Fly from

Boston

Fly to

Costa Mesa

Route

Depart

Return

Price

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Tue 1/6

8:42 pm-12:17 am

Nonstop6h 35m

Los Angeles

Tue 1/13

2:00 pm-10:27 pm

Nonstop5h 27m

$217

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Tue 12/9

5:30 am-10:45 am

1 stop8h 15m

Los Angeles

Sun 12/14

10:35 am-11:40 pm

1 stop10h 05m

$224

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Tue 1/6

7:30 am-11:22 am

Nonstop6h 52m

Los Angeles

Tue 1/13

9:45 pm-6:14 am

Nonstop5h 29m

$224

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Thu 2/5

7:30 am-2:18 pm

1 stop9h 48m

Los Angeles

Thu 2/19

7:00 am-3:28 pm

Nonstop5h 28m

$241

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Mon 12/8

6:00 am-9:34 am

Nonstop6h 34m

Los Angeles

Sun 12/14

10:40 pm-10:47 am

1 stop9h 07m

$244

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Tue 2/10

6:50 am-2:30 pm

2 stops10h 40m

Los Angeles

Wed 2/11

11:00 pm-12:10 pm

2 stops10h 10m

$247

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Wed 2/11

2:40 pm-10:00 pm

2 stops10h 20m

Los Angeles

Thu 2/19

5:50 am-10:55 pm

2 stops14h 05m

$253

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Wed 1/14

8:20 pm-11:56 pm

Nonstop6h 36m

Los Angeles

Wed 1/21

6:00 am-5:13 pm

1 stop8h 13m

$254

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Wed 1/28

8:20 pm-11:56 pm

Nonstop6h 36m

Los Angeles

Sun 2/1

7:00 am-6:45 pm

1 stop8h 45m

$254

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Fri 12/5

8:30 pm-11:59 pm

Nonstop6h 29m

Los Angeles

Tue 12/9

1:30 pm-12:03 am

1 stop7h 33m

$255

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to Costa Mesa. Price data was last updated on November 7, 2025.

To ensure you get the cheapest price possible for a flight from Boston to Costa Mesa, you should look to book at least 61 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 Boston to Costa Mesa?

Currently, August is the cheapest month in which you can book a flight from Boston to Costa Mesa (average of $115). Flying from Boston to Costa Mesa in April is currently the most expensive (average of $173). 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 BOS to CM3?

Find hourly flight availability from Boston 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 November 13, 2025.

It’s typically best to fly out from Boston to Costa Mesa in the evening. Doing so could potentially save you 23% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Boston to Costa Mesa. Price data was last updated on December 16, 2024.

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

Weekly flight availability from Boston to Costa Mesa

Explore weekly flight availability from Boston 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 November 13, 2025.

The most flights from BOS to CM3 are scheduled on a Friday (54 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (30 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 November 13, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Boston 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.
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
9,017 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
11,051 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
JetBlue
7.2
Good
2,907 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Spirit Airlines
6.3
Okay
8,139 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

    For a flight from Boston to Costa Mesa, you will be flying from Logan Intl. Boston Logan Intl (BOS) is just 2.6 mi from the center of the city. Logan Intl is the only Boston airport and it handles 47 outbound flights to Costa Mesa per day. 10 airlines have flights to Costa Mesa from Boston Logan Intl on a regular basis.

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

    The Boston Logan Intl to Costa Mesa flight path was viewed by 97 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 Boston to Costa Mesa?

    A quick flight from Boston to Costa Mesa can take about 6h 35m. JetBlue provides one of the quickest options available for as low as $217. There are 2603 mi between Boston and Costa Mesa. This flight may include one or multiple stops.

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

    Consider KLM (92%), Icelandair (90%) or Air China (90%) when booking your flight. These represent the most reliable airlines when flying from Boston to Costa Mesa.

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

    The cheapest flight price from Boston to Costa Mesa is $108. On average you can expect to pay $1,073. The most popular route, (Boston Logan Intl - Los Angeles), can usually be booked for $143.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Boston to Costa Mesa (average of $115). Flying from Boston to Costa Mesa in April is currently the most expensive (average of $173). 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 Boston to Costa Mesa

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Top 10 airlines flying from Boston to Costa Mesa

Discover the top 10 airlines that operate flights from Boston 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$88Average$172FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$90Average$208FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$107Average$256FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$108Average$345FlexibilityNo cancel feeOn-time62%
DeltaCheapest$129Average$422FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$184Average$381FlexibilityNo cancel feeOn-time75%
Sun Country AirCheapest$187Average$397FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$197Average$456FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$217Average$426FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$259Average$421FlexibilityNo cancel feeOn-time71%

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