Costa Mesa

$130+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LAX
ago 5 — ago 121
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 61 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 julho 31, 2025.

Round-trip from

$225
(Mytrip)

One-way from

$130
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$402
From Boston Logan Intl to Costa Mesa
One-way flight from Boston Logan Intl to Costa Mesa
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in July 2025

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 julho 31, 2025.

This Mytrip deal was found by Cheapflights users on 7/29. 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 8/306:30 amBOS - LAX
1 stop17h 03mSpirit Airlines
sex 9/511:10 amLAX - BOS
1 stop9h 45mSpirit Airlines
Deal found 7/29$225
This United Airlines deal was found by Cheapflights users on 7/31. 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.
qua 9/36:20 pmBOS - LAX
Nonstop6h 12mUnited Airlines
seg 9/810:43 pmLAX - BOS
Nonstop5h 35mUnited Airlines
Deal found 7/31$227
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 9/46:59 pmBOS - LAX
Nonstop6h 21mJetBlue
ter 9/99:45 pmLAX - BOS
Nonstop5h 40mJetBlue
Deal found 7/30$228
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.
sex 11/76:00 amBOS - LAX
1 stop11h 17mMultiple Airlines
sex 11/1410:00 amLAX - BOS
1 stop11h 20mMultiple Airlines
Deal found 7/30$239
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.
sáb 11/86:59 pmBOS - LAX
1 stop15h 37mAlaska Airlines
sáb 11/1510:00 amLAX - BOS
1 stop11h 20mAlaska Airlines
Deal found 7/30$256
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.
sex 8/296:50 amBOS - LAX
Nonstop6h 14mDelta
qua 9/33:20 pmLAX - BOS
Nonstop5h 36mDelta
Deal found 7/30$257

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 julho 31, 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

sáb 8/30

6:30 am-8:33 pm

1 stop17h 03m

Los Angeles

sex 9/5

11:10 am-11:55 pm

1 stop9h 45m

$225

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

sáb 8/30

8:23 pm-7:29 am

1 stop14h 06m

Los Angeles

sex 9/5

6:07 pm-6:00 am

1 stop8h 53m

$227

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

qui 9/4

6:59 pm-10:20 pm

Nonstop6h 21m

Los Angeles

ter 9/9

9:45 pm-6:25 am

Nonstop5h 40m

$228

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

sex 11/7

6:00 am-2:17 pm

1 stop11h 17m

Los Angeles

sex 11/14

10:00 am-12:20 am

1 stop11h 20m

$239

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

qui 9/4

11:00 am-5:03 pm

1 stop9h 03m

Los Angeles

seg 9/8

8:30 am-5:13 pm

Nonstop5h 43m

$244

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

sex 8/29

6:50 am-10:04 am

Nonstop6h 14m

Los Angeles

qua 9/3

3:20 pm-11:56 pm

Nonstop5h 36m

$257

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

qua 8/13

6:30 am-11:17 am

1 stop7h 47m

$130

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

qua 9/10

7:05 am-2:00 pm

2 stops9h 55m

$134

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

seg 9/15

6:00 am-1:04 pm

1 stop10h 04m

$138

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

sáb 8/16

9:40 am-5:08 pm

1 stop10h 28m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 12 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 July 25, 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, 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 $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 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 julho 31, 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 Tuesday 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 julho 31, 2025.

The most flights from BOS to CM3 are scheduled on a Wednesday (65 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 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 julho 31, 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.

Entertainment

7.1

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Entertainment

7.1

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Entertainment

7.1

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Entertainment

7.1

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Entertainment

7.1

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Entertainment

7.1

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

  • What are the cheapest airlines to fly from Boston to Costa Mesa one-way?

    $130 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 Southwest and Alaska Airlines, with prices starting from $134 and $138, respectively.

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

    Consider LATAM Airlines (88%), Japan Airlines (87%) or TAP AIR PORTUGAL (85%) 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 $118. On average you can expect to pay $2,084. The most popular route, (Boston Logan Intl - Los Angeles), can usually be booked for $177.

  • 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 $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.

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.

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 julho 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$71Average$160FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$92Average$234FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$102Average$250FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$108Average$330FlexibilityNo cancel feeOn-time62%
DeltaCheapest$149Average$415FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$180Average$397FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$201Average$427FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$206Average$390FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$222Average$417FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$236Average$450FlexibilityNo 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.