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Cheap flights from Boston to California from £101

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LAX
16 Sep — 23 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to California

Enter your travel dates to find the best prices.

Cheapest flights from Boston to California
Explore the most affordable flight options available from Boston to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 August 2026.

Fri 11/915:55 -
1 stop10h 05m
Fri 18/915:55 -
Nonstop5h 35m
Deal found 13/8£189
Thu 27/815:35 -
1 stop10h 05m
Mon 31/805:00 -
1 stop8h 10m
Deal found 12/8£189
Sat 19/905:00 -
1 stop7h 50m
Tue 22/915:55 -
Nonstop5h 35m
Deal found 15/8£190
Fri 23/1019:30 -
1 stop8h 55m
Fri 30/1008:25 -
2 stops11h 45m
Deal found 12/8£190
Fri 11/915:55 -
1 stop10h 05m
Sun 13/915:55 -
Nonstop5h 35m
Deal found 12/8£191
Fri 11/1219:45 -
1 stop8h 10m
Tue 2/210:30 -
1 stop7h 20m
Deal found 14/8£191
Fri 11/911:15 -
Nonstop5h 55m
Wed 23/915:55 -
Nonstop5h 35m
Deal found 16/8£192
Tue 1/910:05 -
2 stops11h 15m
Tue 8/915:55 -
Nonstop5h 35m
Deal found 12/8£193
Wed 30/908:15 -
2 stops10h 20m
Sat 3/1005:05 -
1 stop10h 15m
Deal found 13/8£193
Tue 27/1010:55 -
2 stops10h 55m
Tue 3/1111:55 -
1 stop7h 15m
Deal found 14/8£194
Fri 4/917:20 -
Nonstop6h 15m
Sat 12/922:04 -
Nonstop5h 36m
Deal found 13/8£195
Sat 5/905:30 -
1 stop13h 35m
Thu 10/917:15 -
1 stop12h 45m
Deal found 12/8£195

Find flight deals from Boston to California

Keep the following information in mind while searching for Boston to California flight deals. Data was last updated 17 August 2026.

Round-trip from

£189

One-way from

£101

Popular in

April

Cheapest in

January

Average price

£298

Good one-way deal

£95 or less
Southwest
  • Southwest
  • 11/9-18/9
  • 1 total stop
  • 15h 40m total
  • Boston to California
Search Deals
Southwest
  • Southwest
  • 18/9
  • Nonstop
  • 5h 55m total
  • Boston to California
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£17 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to California.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Boston to California 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 858,174 searches. Data last updated 17 August 2026.
Use the filters below to find and compare flights from Boston to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonSan Diego

BOS Boston Logan Intl - SAN San Diego

BOSSAN

Boston Logan Intl

Sat 19/9

05:00-09:50

1 stop7h 50m

San Diego

Tue 22/9

15:55-00:30

Nonstop5h 35m

£190

BostonSan Diego

BOS Boston Logan Intl - SAN San Diego

BOSSAN

Boston Logan Intl

Thu 14/1

17:15-20:48

Nonstop6h 33m

San Diego

Wed 20/1

22:00-06:38

Nonstop5h 38m

£190

BostonSan Diego

BOS Boston Logan Intl - SAN San Diego

BOSSAN

Boston Logan Intl

Tue 10/11

09:00-12:33

Nonstop6h 33m

San Diego

Fri 13/11

13:45-22:07

Nonstop5h 22m

£190

BostonSan Diego

BOS Boston Logan Intl - SAN San Diego

BOSSAN

Boston Logan Intl

Tue 27/10

07:51-11:09

Nonstop6h 18m

San Diego

Sun 8/11

21:07-05:46

Nonstop5h 39m

£203

BostonSan Diego

BOS Boston Logan Intl - SAN San Diego

BOSSAN

Boston Logan Intl

Fri 25/9

17:10-20:15

Nonstop6h 05m

San Diego

Mon 28/9

19:11-06:30

1 stop8h 19m

£205

BostonLos Angeles

BOS Boston Logan Intl - LAX Los Angeles

BOSLAX

Boston Logan Intl

Thu 17/9

11:40-14:55

Nonstop6h 15m

Los Angeles

Sun 20/9

23:14-07:53

Nonstop5h 39m

£212

BostonLos Angeles

BOS Boston Logan Intl - LAX Los Angeles

BOSLAX

Boston Logan Intl

Sat 3/10

06:00-09:10

Nonstop6h 10m

Los Angeles

Mon 5/10

20:23-05:27

Nonstop6h 04m

£212

BostonLos Angeles

BOS Boston Logan Intl - LAX Los Angeles

BOSLAX

Boston Logan Intl

Wed 9/9

20:20-23:32

Nonstop6h 12m

Los Angeles

Sat 12/9

12:46-21:52

Nonstop6h 06m

£212

BostonLos Angeles

BOS Boston Logan Intl - LAX Los Angeles

BOSLAX

Boston Logan Intl

Fri 25/9

06:20-09:35

Nonstop6h 15m

Los Angeles

Mon 28/9

15:20-23:51

Nonstop5h 31m

£212

BostonSan Diego

BOS Boston Logan Intl - SAN San Diego

BOSSAN

Boston Logan Intl

Mon 9/11

05:00-11:30

2 stops9h 30m

San Diego

Mon 16/11

20:05-08:20

2 stops9h 15m

£216

Flights are sorted by cheapest return flights first.

Deals found on 15/8

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

Have a flexible travel schedule? Discover the best time to fly to California from Boston with our price prediction graph.
Estimated return 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 California

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

Currently, January is the cheapest month in which you can book a flight from Boston to California (average of £240). Flying from Boston to California in December is currently the most expensive (average of £333). 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 CA?

Find hourly flight availability from Boston to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 August 2026.

One of the essential ways to save on airfare from Boston to California is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the evening could potentially save you up to 55% on airfare.

Weekly flight availability from Boston to California

Explore weekly flight availability from Boston to California. 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 17 August 2026.

The most flights from BOS to USCA are scheduled on a Sunday (59 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (45 on average).

How much does it cost for a return flight from Boston to California?

Airfare is below average for this route at the moment.
Boston to California flights typically cost between £236 and £386 in August.
The cheapest return price found within the last 5 days was £189 on Southwest (27 Aug–31 Aug).

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

Booking 60 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to California. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. 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 California. Reviews last updated 17 August 2026.
Read reviews from past customers who have flown with Delta,American Airlines, andJetBlue from Boston to California. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,504 reviews
Check prices

Crew

8.5

Entertainment

7.8

Comfort

7.8

Food

7.2

Boarding

8.1

Overall

7.8

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
Delta
7.8
Good
8,504 reviews
Delta
7.8
Good
8,504 reviews
Check prices

Crew

8.5

Entertainment

7.8

Comfort

7.8

Food

7.2

Boarding

8.1

Overall

7.8

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
American Airlines
7.1
Good
11,946 reviews
Delta
7.8
Good
8,504 reviews
Check prices

Crew

8.5

Entertainment

7.8

Comfort

7.8

Food

7.2

Boarding

8.1

Overall

7.8

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
JetBlue
7.1
Good
3,030 reviews
Delta
7.8
Good
8,504 reviews
Check prices

Crew

8.5

Entertainment

7.8

Comfort

7.8

Food

7.2

Boarding

8.1

Overall

7.8

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Related info for your journey

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

    If you book a flight to California 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.

  • How popular is this Boston to California flight route?

    Flights from Boston Logan Intl to California have been viewed 13 times in the past calendar month.

  • How long is the flight from Boston to California?

    For as low as £190, Southwest can have you in California from Boston in 6h 33m. The distance from Boston to California is about 2581 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

    The top 3 most reliable airlines when flying from Boston to California are Air China (100%), United Airlines (90%) and Japan Airlines (85%).

  • What are the cheapest flights from Boston to California?

    While on average a flight from Boston to California is generally £129, our data shows the cheapest flight currently is £102. When looking at the most popular route, (Boston Logan Intl - Las Vegas Harry Reid Intl), you can expect to pay £213 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Boston to California (average of £240). Flying from Boston to California in December is currently the most expensive (average of £333). 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

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Top 3 airlines flying from Boston to California

Discover the top 3 airlines that operate flights from Boston to California. 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 858,174 searches. Data last updated 17 August 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest£132Average£187FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
JetBlueCheapest£179Average£404FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
DeltaCheapest£415Average£441FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Boston to California?

When you search for this flight from Boston to California, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Boston to California?

Millions of users choose and trust Cheapflights to book the best flight deals from Boston to California for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Boston to California with no change fees?

Yes, we can. To see specific flights from Boston to California with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Boston to California become cheaper?

Yes, Cheapflights offers price alerts on Boston to California flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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