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$125+ Cheap flights from California to Boston (BOS)

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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BOS
May 1 — May 81
Fri 5/1
Fri 5/8
1 adult, Economy
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Cheap flight deals from California to Boston

Cheapest flights from California to Boston
Explore the most affordable flight options available from California to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.

This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:40 pm
SAN
-
BOS
1 stop9h 05m
Southwest
Wed 4/292:30 pm
BOS
-
SAN
1 stop10h 10m
Southwest
Deal found 4/1$237
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/291:52 pm
LAX
-
BOS
1 stop8h 39m
Multiple Airlines
Mon 5/48:36 pm
BOS
-
LAX
Nonstop6h 23m
Multiple Airlines
Deal found 3/30$239
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:52 pm
LAX
-
BOS
1 stop8h 39m
Multiple Airlines
Fri 4/248:36 pm
BOS
-
LAX
Nonstop6h 23m
Multiple Airlines
Deal found 3/27$240
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1010:51 pm
LAX
-
BOS
1 stop9h 28m
Frontier
Wed 4/1512:55 pm
BOS
-
LAX
1 stop11h 50m
Frontier
Deal found 3/27$241
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/303:40 pm
SAN
-
BOS
1 stop13h 25m
Southwest
Thu 5/75:30 am
BOS
-
SAN
1 stop10h 00m
Southwest
Deal found 3/31$242
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1311:30 pm
LAX
-
BOS
1 stop12h 58m
Multiple Airlines
Fri 5/88:44 am
BOS
-
LAX
2 stops18h 09m
Multiple Airlines
Deal found 3/29$243
This Cheapflightsfares deal was found by Cheapflights users on 3/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:09 pm
LAX
-
BOS
Nonstop5h 36m
JetBlue
Sat 6/136:00 am
BOS
-
LAX
Nonstop6h 10m
JetBlue
Deal found 3/29$244
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1711:49 pm
LAS
-
BOS
1 stop8h 58m
Multiple Airlines
Sat 4/257:20 pm
BOS
-
LAS
Nonstop6h 07m
Multiple Airlines
Deal found 3/28$244
This Frontier deal was found by Cheapflights users on 3/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:52 pm
LAX
-
BOS
1 stop8h 39m
Frontier
Tue 4/216:00 am
BOS
-
LAX
1 stop9h 36m
Frontier
Deal found 3/30$245
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.
Tue 4/1411:35 pm
LAS
-
BOS
1 stop9h 35m
Frontier
Mon 5/1112:01 pm
BOS
-
LAS
1 stop11h 50m
Frontier
Deal found 3/31$245
This Vliegwinkel 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1911:00 pm
LAX
-
BOS
1 stop9h 25m
Frontier
Sat 4/256:00 am
BOS
-
LAX
1 stop9h 56m
Frontier
Deal found 3/27$246
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:19 pm
LAS
-
BOS
1 stop10h 12m
Frontier
Thu 4/2312:28 pm
BOS
-
LAS
1 stop13h 00m
Frontier
Deal found 4/1$246

Find flight deals from California to Boston

Keep the following information in mind while searching for California to Boston flight deals. Data was last updated April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$237
(American Airlines)

One-way from

$125
(Frontier)

Popular in

July

Cheapest in

January

Average price

$412

Good round-trip deal

$317 or less

Good one-way deal

$209 or less
Provider with most accurate pricing for Los Angeles-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Boston Logan Intl flights.
Search Deals
From California to Boston Logan Intl
Search Deals
One-way flight from California to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from California to Boston Logan Intl.
Search Deals
Price to beat on a one-way flight from California to Boston Logan Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to Boston 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 1, 2026.
Use the filters below to find and compare flights from California to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 4/27

10:10 pm-9:11 am

1 stop8h 01m

Boston Logan Intl

Sat 5/2

5:44 pm-9:13 pm

Nonstop6h 29m

$255
Quickest round-trip

Las VegasBoston

LAS - BOS

LASBOS

Las Vegas Harry Reid Intl

Sat 5/9

7:20 am-3:28 pm

Nonstop5h 08m

Boston Logan Intl

Sat 5/16

7:20 pm-10:16 pm

Nonstop5h 56m

$257

Los AngelesBoston

LAX - BOS

LAXBOS

Los Angeles

Tue 5/5

10:43 pm-7:24 am

Nonstop5h 41m

Boston Logan Intl

Mon 5/11

6:39 pm-11:59 pm

1 stop8h 20m

$259

Los AngelesBoston

LAX - BOS

LAXBOS

Los Angeles

Mon 5/4

9:50 pm-8:15 am

1 stop7h 25m

Boston Logan Intl

Fri 5/8

3:45 pm-8:35 pm

1 stop7h 50m

$264

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 5/13

9:49 pm-6:30 am

Nonstop5h 41m

Boston Logan Intl

Tue 5/19

6:10 am-12:17 pm

1 stop9h 07m

$269

San JoseBoston

SJC - BOS

SJCBOS

San Jose

Tue 5/5

9:40 pm-9:45 am

1 stop9h 05m

Boston Logan Intl

Wed 5/13

2:25 pm-10:15 pm

2 stops10h 50m

$276

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Sat 5/2

8:25 pm-5:07 am

Nonstop5h 42m

Boston Logan Intl

Sat 5/9

8:21 pm-11:59 pm

Nonstop6h 38m

$277

Los AngelesBoston

LAX - BOS

LAXBOS

Los Angeles

Tue 5/5

7:30 am-10:20 pm

2 stops11h 50m

Boston Logan Intl

Sat 5/9

5:15 am-12:10 pm

2 stops9h 55m

$280

Las VegasBoston

LAS - BOS

LASBOS

Las Vegas Harry Reid Intl

Wed 8/12

1:23 pm-11:54 pm

1 stop7h 31m

Boston Logan Intl

Sat 8/15

5:59 pm-10:53 pm

1 stop7h 54m

$282

Las VegasBoston

LAS - BOS

LASBOS

Las Vegas Harry Reid Intl

Wed 4/29

8:35 am-6:35 pm

1 stop7h 00m

Boston Logan Intl

Wed 5/6

9:15 am-3:35 pm

2 stops9h 20m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from California to Boston

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

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

Currently, December is the cheapest month in which you can book a flight from California to Boston (average of $118). Flying from California to Boston in June 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 CA to BOS?

Find hourly flight availability from California to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 1, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 30% on flights from California to Boston by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from California to Boston. Price data was last updated on March 28, 2026.

Travelers seeking maximum savings on their California to Boston flight should consider departing on Tuesday evenings 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 California to Boston

Explore weekly flight availability from California to Boston. 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 1, 2026.

The most flights from USCA to BOS are scheduled on a Tuesday (42 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 on average).

How much does it cost to fly round-trip from California to Boston?

Related info for your journey

Find useful and relevant information for your journey from California to Boston. 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 into for flights to Boston from California?

    If you book a flight to Boston from California, you will be flying to Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston.

  • How popular is this California to Boston flight route?

    The California to Boston Logan Intl flight path was viewed by 57 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 California to Boston?

    Departing from California to Boston will take you 5h 08m. There are 2373 mi between California and Boston. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $82. However, be on the lookout for offers from Frontier and Alaska Airlines, as they are both options that can get you from California to Boston for a low price.

  • What are the most popular routes from California to Boston?

    The most popular flight routes from California to Boston are San Francisco - Boston Logan Intl, Los Angeles - Boston Logan Intl and San Diego - Boston Logan Intl.

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

    Before booking your flight to Boston from California, check out the most reliable airlines to get you to your destination on time: Etihad Airways (100%), Singapore Airlines (87%), Icelandair( 83%).

  • What are the cheapest flights from California to Boston?

    Looking at all options, your cheapest flight can be booked for $134. While the most popular route (San Francisco - Boston Logan Intl) can be booked for $228 on average, our data indicates $1,091 when flying from California to Boston.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from California to Boston (average of $118). Flying from California to Boston in June 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.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Medford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Seabrook
Cranston
Chelsea
Warwick
Peabody
Waltham
York Beach
Londonderry
Swansea
Old Orchard Beach
Lincoln
Quincy
Lowell

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Top 10 airlines flying from California to Boston

Discover the top 10 airlines that operate flights from California to Boston. 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 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$85Average$228FlexibilityNo cancel feeOn-time65%
FrontierCheapest$100Average$214FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$118Average$352FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$126Average$330FlexibilityNo cancel feeOn-time85%
DeltaCheapest$128Average$370FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$179Average$366FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$190Average$422FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$194Average$415FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$196Average$378FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$200Average$436FlexibilityNo cancel feeOn-time63%

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