HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Costa Mesa

$119+ 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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LAX
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Costa Mesa with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Boston Logan Intl to Costa Mesa are usually found in September or January, booked 54 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

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 April 24, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$207
(Booking.com)

One-way from

$119
(Hawaiian Airlines)

Popular in

December

Cheapest in

September

Average price

$437
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. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 24, 2025.

This Booking.com deal was found by Cheapflights users on 4/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/310:04 amBOS - LAX
1 stop12h 44mSpirit Airlines
Fri 6/136:52 pmLAX - BOS
2 stops18h 49mSpirit Airlines
Deal found 4/23$207
This Booking.com deal was found by Cheapflights users on 4/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/138:00 amBOS - LAX
1 stop12h 43mFrontier
Sat 5/174:59 pmLAX - BOS
1 stop29h 06mFrontier
Deal found 4/22$208
This Booking.com deal was found by Cheapflights users on 4/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/266:00 amBOS - LAX
1 stop14h 55mMultiple Airlines
Mon 5/1911:10 pmLAX - BOS
1 stop14h 14mMultiple Airlines
Deal found 4/22$212
This United Airlines deal was found by Cheapflights users on 4/23. 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 5/287:34 amBOS - LAX
Nonstop6h 11mUnited Airlines
Thu 5/2912:20 amLAX - BOS
1 stop7h 56mUnited Airlines
Deal found 4/23$219
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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.
Sat 5/247:59 pmBOS - LAX
1 stop14h 35mAlaska Airlines
Sat 5/317:00 amLAX - BOS
1 stop20h 10mAlaska Airlines
Deal found 4/23$247
This JetBlue deal was found by Cheapflights users on 4/23. 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.
Sat 5/249:45 pmBOS - LAX
Nonstop6h 28mJetBlue
Thu 5/2912:20 pmLAX - BOS
1 stop8h 57mJetBlue
Deal found 4/23$248
This Delta deal was found by Cheapflights users on 4/23. 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.
Sat 5/245:00 pmBOS - LAX
Nonstop6h 35mDelta
Fri 5/303:20 pmLAX - BOS
Nonstop5h 28mDelta
Deal found 4/23$258
This American Airlines deal was found by Cheapflights users on 4/23. 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 6/38:00 amBOS - LAX
Nonstop6h 35mAmerican Airlines
Sat 6/712:32 amLAX - BOS
1 stop7h 54mAmerican Airlines
Deal found 4/23$295

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 April 24, 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 5/6

6:00 am-5:01 pm

1 stop14h 01m

Los Angeles

Fri 5/9

10:10 pm-9:09 am

2 stops31h 59m

$203

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Wed 5/7

8:00 am-5:43 pm

1 stop12h 43m

Los Angeles

Sat 5/10

11:36 am-7:03 am

1 stop16h 27m

$206

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Tue 5/13

8:00 am-5:43 pm

1 stop12h 43m

Los Angeles

Sat 5/17

4:59 pm-1:05 am

1 stop29h 06m

$208

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Wed 5/28

7:34 am-10:45 am

Nonstop6h 11m

Los Angeles

Thu 5/29

12:20 am-11:16 am

1 stop7h 56m

$219

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Tue 7/1

6:25 am-9:40 am

Nonstop6h 15m

Los Angeles

Tue 7/8

8:25 pm-5:00 am

Nonstop5h 35m

$238

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Sat 5/24

7:59 pm-7:34 am

1 stop14h 35m

Los Angeles

Fri 5/30

3:05 pm-6:10 am

1 stop12h 05m

$247

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Sat 5/17

6:55 am-10:19 am

Nonstop6h 24m

Los Angeles

Tue 5/20

3:20 pm-11:48 pm

Nonstop5h 28m

$257

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Wed 5/14

5:00 am-8:28 am

Nonstop6h 28m

Los Angeles

Sun 5/18

12:55 am-12:12 pm

1 stop8h 17m

$327

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Sat 5/31

6:00 am-12:57 pm

1 stop9h 57m

$119

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Fri 5/2

9:05 pm-9:35 pm

2 stops27h 30m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 19 results
1
2

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 April 18, 2025.

To ensure you get the cheapest price possible for a flight from Boston to Costa Mesa, you should look to book at least 54 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, January is the cheapest month in which you can book a flight from Boston to Costa Mesa (average of $246). Flying from Boston to Costa Mesa in June is currently the most expensive (average of $328). 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 April 24, 2025.

When flying from Boston 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 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 Wednesday evenings when fares are most often at their lowest. Saturday 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 April 24, 2025.

The most flights from BOS to CM3 are scheduled on a Wednesday (55 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (36 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 April 24, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta 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.
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,286 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,393 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 96 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 Boston to Costa Mesa one-way?

    $119 is the cheapest one-way deal found within the past few days, from Hawaiian Airlines. You may also be able to find cheap deals on Spirit Airlines and Frontier, with prices starting from $120 and $124, respectively.

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

    Consider EL AL (94%), Air China (93%) or ITA Airways (92%) 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 $99. On average you can expect to pay $952. The most popular route, (Boston Logan Intl - Los Angeles), can usually be booked for $162.

  • 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, January is the cheapest month in which you can book a flight from Boston to Costa Mesa (average of $246). Flying from Boston to Costa Mesa in June is currently the most expensive (average of $328). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Costa Mesa

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Los Angeles flights
Boston to Las Vegas flights
Boston to San Francisco flights
Boston to San Diego flights
Hartford to Las Vegas flights
Boston to Ontario flights
Hartford to Los Angeles flights
Boston to Burbank flights
Hartford to San Francisco flights
Boston to Santa Ana flights
Boston to Sacramento flights
Albany to Las Vegas flights
Boston to Reno flights
Hartford to San Diego flights
Boston to San Jose flights
Boston to Oakland flights
Boston to Santa Barbara flights
Albany to Los Angeles flights
Boston to Long Beach flights
Hartford to Ontario flights
Hartford to Santa Ana flights
Boston to Palm Springs flights
Albany to San Francisco flights
Hartford to Fresno flights
Albany to San Diego flights
Boston to Medford flights
Boston to San Luis Obispo flights
Hartford to Reno flights
Hartford to San Jose flights
Hartford to Burbank flights
Albany to Ontario flights
Boston to Fresno flights
Albany to Santa Ana flights
Hartford to Sacramento flights
Albany to Reno flights
Boston to Santa Rosa flights
Boston to Monterey flights
Hartford to Palm Springs flights
Hartford to Oakland flights
Albany to Sacramento flights
Boston to Arcata flights
Albany to Burbank flights
Hartford to Medford flights
Worcester to Las Vegas flights
Albany to Medford flights
Hartford to Santa Barbara flights
Albany to Oakland flights
Hartford to San Luis Obispo flights
Boston to Redding flights
Boston to Tijuana flights

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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$71Average$148FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$109Average$249FlexibilityNo cancel feeOn-time65%
Breeze AirwaysCheapest$113Average$272FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$148Average$377FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$161Average$452FlexibilityNo cancel feeOn-time75%
DeltaCheapest$175Average$439FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$193Average$395FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$204Average$443FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$434FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$252Average$469FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.