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Costa Mesa

$117+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LAX
abr. 2 — abr. 91
mié. 4/2
mié. 4/9
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 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 marzo 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$195
(Kiwi.com)

One-way from

$117
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$384
Provider with most accurate pricing for Boston Logan Intl-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Los Angeles flights.
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From Boston Logan Intl to Costa Mesa
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One-way flight from Boston Logan Intl to Costa Mesa
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 marzo 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
mar. 4/156:00 amBOS - LAX
1 stop14h 01mSpirit Airlines
jue. 4/249:58 amLAX - BOS
1 stop18h 20mSpirit Airlines
Deal found 3/26$195
This JetBlue deal was found by Cheapflights users on 3/27. 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.
mié. 4/3010:19 pmBOS - LAX
Nonstop6h 40mJetBlue
lun. 5/510:30 pmLAX - BOS
1 stop10h 12mJetBlue
Deal found 3/27$197
This Southwest deal was found by Cheapflights users on 3/27. 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.
mié. 4/98:55 amBOS - LAX
2 stops10h 25mSouthwest
mié. 4/97:05 pmLAX - BOS
2 stops9h 45mSouthwest
Deal found 3/27$207
This Delta deal was found by Cheapflights users on 3/27. 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.
lun. 4/287:15 amBOS - LAX
Nonstop6h 32mDelta
lun. 5/59:20 pmLAX - BOS
Nonstop5h 33mDelta
Deal found 3/27$232
This United Airlines deal was found by Cheapflights users on 3/27. 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.
mié. 5/216:00 amBOS - LAX
Nonstop6h 33mUnited Airlines
sáb. 5/2410:50 pmLAX - BOS
Nonstop5h 38mUnited Airlines
Deal found 3/27$237
This Mytrip deal was found by Cheapflights users on 3/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/126:00 amBOS - LAX
1 stop16h 18mMultiple Airlines
dom. 4/2011:48 pmLAX - BOS
1 stop10h 26mMultiple Airlines
Deal found 3/28$253
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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.
sáb. 5/246:00 amBOS - LAX
1 stop12h 24mAlaska Airlines
sáb. 5/317:00 amLAX - BOS
1 stop20h 10mAlaska Airlines
Deal found 3/27$256
This American Airlines deal was found by Cheapflights users on 3/27. 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.
mar. 4/298:05 amBOS - LAX
Nonstop6h 36mAmerican Airlines
vie. 5/212:59 amLAX - BOS
1 stop8h 38mAmerican Airlines
Deal found 3/27$267
This Booking.com deal was found by Cheapflights users on 3/27. 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.
vie. 4/46:00 amBOS - LAX
1 stop16h 18mFrontier
mié. 4/98:18 pmLAX - BOS
1 stop25h 29mFrontier
Deal found 3/27$329

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 marzo 28, 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

mar. 4/15

6:00 am-5:01 pm

1 stop14h 01m

Los Angeles

jue. 4/24

9:58 am-7:18 am

1 stop18h 20m

$195

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

jue. 4/3

5:05 am-12:35 pm

1 stop10h 30m

Los Angeles

lun. 4/7

8:00 pm-4:43 am

Nonstop5h 43m

$197

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

mié. 4/2

5:00 am-4:20 pm

2 stops14h 20m

Los Angeles

mié. 4/9

7:05 pm-7:50 am

2 stops9h 45m

$213

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

mié. 5/28

6:00 am-3:24 pm

1 stop12h 24m

Los Angeles

sáb. 5/31

11:36 am-7:13 am

1 stop16h 37m

$220

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

jue. 5/8

6:00 am-9:33 am

Nonstop6h 33m

Los Angeles

dom. 5/11

6:52 pm-5:39 am

1 stop7h 47m

$224

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

lun. 4/7

6:15 pm-9:58 pm

Nonstop6h 43m

Los Angeles

mar. 4/15

7:55 am-4:22 pm

Nonstop5h 27m

$247

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

mié. 4/2

7:59 pm-7:30 am

1 stop14h 31m

Los Angeles

lun. 4/7

6:19 pm-4:27 pm

1 stop19h 08m

$255

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

mar. 4/29

8:05 am-11:41 am

Nonstop6h 36m

Los Angeles

vie. 5/2

12:59 am-12:37 pm

1 stop8h 38m

$267

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

mar. 4/1

6:00 am-7:18 pm

1 stop16h 18m

Los Angeles

mar. 4/8

8:18 pm-12:47 am

1 stop25h 29m

$318

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

jue. 5/1

9:05 pm-11:55 pm

2 stops29h 50m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 20 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 March 21, 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 March is currently the most expensive (average of $330). 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 marzo 28, 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 marzo 28, 2025.

The most flights from BOS to CM3 are scheduled on a Thursday (55 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (15 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 marzo 28, 2025.
See what other customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,897 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
JetBlue
7.3
Good
2,923 reviews
Southwest
8.1
Very good
4,274 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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 31 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 109 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?

    $117 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $119 and $124, respectively.

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

    Consider China Eastern (100%), ITA Airways (100%) or LATAM Airlines (95%) 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 $115. On average you can expect to pay $1,210. The most popular route, (Boston Logan Intl - Los Angeles), can usually be booked for $149.

  • 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 March is currently the most expensive (average of $330). 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 marzo 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$71Average$148FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$110Average$245FlexibilityNo cancel feeOn-time65%
Breeze AirwaysCheapest$113Average$271FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$161Average$452FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$176Average$380FlexibilityNo cancel feeOn-time62%
DeltaCheapest$177Average$438FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$198Average$395FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$207Average$451FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$227Average$442FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$252Average$466FlexibilityNo cancel feeOn-time63%
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