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Carlsbad

$118+ Cheap flights from Boston (BOS) to Carlsbad, CA, 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LAX
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Carlsbad 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 Carlsbad

Keep the following information in mind while searching for Boston to Carlsbad flight deals. Data was last updated April 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$196
(Cheapflightsfares)

One-way from

$118
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$438
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 Carlsbad
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One-way flight from Boston Logan Intl to Carlsbad
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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 ($9 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Boston to Carlsbad

Cheapest flights from Boston to Carlsbad
Explore the most affordable flight options available from Boston to Carlsbad. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/28:30 amBOS - LAX
1 stop12h 10mSpirit Airlines
Sun 5/49:58 amLAX - BOS
1 stop18h 20mSpirit Airlines
Deal found 3/31$196
This JetBlue deal was found by Cheapflights users on 4/1. 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
Fri 5/307:50 amLAX - BOS
Nonstop5h 42mJetBlue
Deal found 4/1$200
This Booking.com deal was found by Cheapflights users on 4/1. 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.
Thu 5/112:48 pmBOS - LAX
1 stop11h 55mMultiple Airlines
Sun 5/49:58 amLAX - BOS
1 stop18h 20mMultiple Airlines
Deal found 4/1$236
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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 5/246:52 pmBOS - LAX
1 stop16h 43mAlaska Airlines
Fri 5/307:00 amLAX - BOS
1 stop20h 10mAlaska Airlines
Deal found 4/1$238
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 4/306:00 pmBOS - LAX
Nonstop6h 28mUnited Airlines
Fri 5/210:50 pmLAX - BOS
Nonstop5h 36mUnited Airlines
Deal found 3/31$252
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/236:00 amBOS - LAX
1 stop14h 55mFrontier
Sun 4/2710:35 pmLAX - BOS
1 stop10h 13mFrontier
Deal found 3/31$269
This Delta deal was found by Cheapflights users on 4/1. 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.
Mon 5/56:00 pmBOS - LAX
Nonstop6h 45mDelta
Sat 5/107:00 amLAX - BOS
Nonstop5h 35mDelta
Deal found 4/1$273
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Thu 5/18:15 amBOS - LAX
1 stop9h 37mAmerican Airlines
Tue 5/62:00 pmLAX - BOS
Nonstop5h 34mAmerican Airlines
Deal found 4/1$294

Cheapflights Fare Finder

Customize your flight search to find flights from Boston to Carlsbad 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 2, 2025.
Use the filters below to find and compare flights from Boston to Carlsbad that are best for you.

Fly from

Boston

Fly to

Carlsbad

Route

Depart

Return

Price

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Sat 5/24

9:45 pm-1:13 am

Nonstop6h 28m

Los Angeles

Fri 5/30

11:50 am-8:35 pm

Nonstop5h 45m

$200

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Tue 4/15

6:00 am-5:01 pm

1 stop14h 01m

Los Angeles

Fri 4/18

6:35 pm-9:30 am

2 stops35h 55m

$201

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Wed 4/23

6:00 am-5:01 pm

1 stop14h 01m

Los Angeles

Thu 4/24

10:35 pm-11:48 am

1 stop10h 13m

$211

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Sun 4/27

12:48 pm-9:35 pm

1 stop11h 47m

Los Angeles

Wed 4/30

10:35 pm-11:48 am

1 stop10h 13m

$238

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Wed 5/28

6:00 am-3:24 pm

1 stop12h 24m

Los Angeles

Tue 6/17

7:25 pm-8:00 am

1 stop9h 35m

$252

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Sat 5/31

7:34 am-10:45 am

Nonstop6h 11m

Los Angeles

Fri 6/6

7:18 pm-6:01 am

1 stop7h 43m

$264

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Fri 5/2

2:45 pm-6:10 pm

Nonstop6h 25m

Los Angeles

Tue 5/6

9:00 pm-5:35 am

Nonstop5h 35m

$273

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Thu 5/1

8:15 am-2:52 pm

1 stop9h 37m

Los Angeles

Tue 5/6

2:00 pm-10:34 pm

Nonstop5h 34m

$294

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Tue 6/3

6:15 am-9:40 am

Nonstop6h 25m

$119

BostonLos Angeles

BOS - LAX

BOSLAX

Boston Logan Intl

Thu 4/24

12:48 pm-9:35 pm

1 stop11h 47m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 19 results
1
2

Best time to book a flight from Boston to Carlsbad

Have a flexible travel schedule? Discover the best time to fly to Carlsbad 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 Carlsbad

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to Carlsbad. Price data was last updated on March 28, 2025.

Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Carlsbad. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Boston to Carlsbad?

Currently, January is the cheapest month in which you can book a flight from Boston to Carlsbad (average of $246). Flying from Boston to Carlsbad 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 C4D?

Find hourly flight availability from Boston to Carlsbad. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 2, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Carlsbad as you normally would.

What is the cheapest day to fly from Boston to Carlsbad?

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

Travelers seeking maximum savings on their Boston to Carlsbad 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 Carlsbad

Explore weekly flight availability from Boston to Carlsbad. 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 2, 2025.

The most flights from BOS to C4D are scheduled on a Tuesday (49 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Carlsbad by month

Plan your trip to Carlsbad by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Carlsbad 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 Carlsbad when rainfall is around 0.0 in.

Temperature in Carlsbad by month

Plan your trip to Carlsbad by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Carlsbad, 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 Carlsbad

Get insights into the airlines that provide service to Carlsbad. 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 Carlsbad. Reviews last updated April 2, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Boston to Carlsbad. 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
9,820 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Alaska Airlines
8.0
Very good
9,820 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Southwest
8.0
Very good
4,272 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Delta
8.0
Very good
7,898 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Hawaiian Airlines
7.9
Good
2,345 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
United Airlines
7.4
Good
8,615 reviews
Alaska Airlines
8.0
Very good
9,820 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

Find useful and relevant information for your journey from Boston to Carlsbad. 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 Carlsbad?

    If you book a flight to Carlsbad from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston. There are 31 flights from Logan Intl to Carlsbad per day from 11 different airlines.

  • How popular is this Boston to Carlsbad flight route?

    This flight path from Boston Logan Intl to Carlsbad was viewed by 100 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 Carlsbad one-way?

    One-way options have recently been found by users for as low as $118 on Spirit Airlines. Other airlines that offer cheap prices include JetBlue from $119 and Frontier from $120 one-way.

  • What are the most reliable airlines from Boston to Carlsbad?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to Carlsbad on time: China Eastern (100%), ITA Airways (100%), LATAM Airlines (95%).

  • What are the cheapest flights from Boston to Carlsbad?

    On average you can expect to pay $1,166 for a flight from Boston to Carlsbad. The cheapest flight overall is $99 while the most popular route, (Boston Logan Intl - Los Angeles) is currently priced at $152.

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

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

  • How can I find direct flights from Boston to Carlsbad?

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

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

    Yes. Cheapflights offers flight deals from Boston to Carlsbad 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 Carlsbad?

    Currently, January is the cheapest month in which you can book a flight from Boston to Carlsbad (average of $246). Flying from Boston to Carlsbad 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

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Alternative routes for Boston to Carlsbad

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Top 10 airlines flying from Boston to Carlsbad

Discover the top 10 airlines that operate flights from Boston to Carlsbad. 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 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$71Average$171FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$110Average$244FlexibilityNo cancel feeOn-time65%
Breeze AirwaysCheapest$113Average$271FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$138Average$358FlexibilityNo cancel feeOn-time85%
JetBlueCheapest$148Average$388FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$161Average$445FlexibilityNo cancel feeOn-time75%
DeltaCheapest$162Average$433FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$166Average$384FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$206Average$448FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$226Average$446FlexibilityNo cancel feeOn-time71%

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