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 £193, Southwest can have you in California from Boston in 6h 20m. 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.

In terms of precipitation, rainfall in California ranges from 0.0 - 87.0 inches per month. February is typically the wettest month, when rainfall can reach 87.0 mm. July is typically the driest time to visit California when rainfall is around 0.0 mm.

If weather is an important factor for your trip to California, 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

What are the most popular routes from Boston to California?

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

What are the cheapest flights from Boston to California?

While on average a flight from Boston to California is generally £212, our data shows the cheapest flight currently is £170. When looking at the most popular route, (Boston Logan Intl - Los Angeles), you can expect to pay £215 for that flight.

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 (94%), Icelandair (88%) and Japan Airlines (82%).

What are the most popular airlines that fly from Boston to California?

The most popular airlines flying from Boston to California are JetBlue, Delta and American Airlines. Something to consider prior to booking your flight.

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.

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.

£90+ Cheap Flights from Boston to California

Cheap flight deals from Boston to California

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 19 September 2026.

Fri 13/1113:05 -

1 stop10h 17m

Mon 16/1121:40 -

1 stop10h 01m

Deal found 17/9£191

Thu 26/1113:05 -

1 stop8h 10m

Sat 5/1209:05 -

2 stops9h 55m

Deal found 17/9£191

Thu 12/1108:15 -

Nonstop6h 25m

Tue 17/1111:25 -

Nonstop5h 25m

Deal found 18/9£192

Wed 2/1205:00 -

2 stops9h 25m

Fri 4/1206:35 -

1 stop7h 15m

Deal found 16/9£193

Wed 28/1009:30 -

Nonstop6h 26m

Wed 4/1121:40 -

1 stop10h 01m

Deal found 17/9£194

Fri 23/1013:12 -

1 stop9h 44m

Mon 26/1021:40 -

1 stop10h 01m

Deal found 19/9£194

Wed 28/1013:00 -

1 stop10h 25m

Sat 31/1012:33 -

1 stop8h 16m

Deal found 18/9£195

Sat 31/1007:20 -

1 stop11h 55m

Wed 4/1106:30 -

2 stops12h 15m

Deal found 17/9£196

Thu 15/1022:00 -

1 stop12h 50m

Tue 20/1022:40 -

1 stop7h 55m

Deal found 16/9£197

Wed 21/1007:00 -

Nonstop6h 09m

Tue 27/1021:40 -

1 stop10h 01m

Deal found 16/9£197

Fri 6/1107:03 -

Nonstop6h 31m

Mon 9/1121:07 -

Nonstop5h 39m

Deal found 17/9£198

Mon 23/1116:10 -

Nonstop6h 26m

Tue 24/1110:50 -

1 stop10h 32m

Deal found 17/9£199

Best flights from Boston to California
Discover carefully curated flight deals from Boston to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Wed 2/1205:00 -

2 stops9h 25m

Sun 6/1209:25 -

Nonstop5h 25m

Deal found 14/9£197

Fri 13/1111:34 -

1 stop8h 41m

Thu 19/1122:20 -

1 stop7h 57m

Deal found 16/9£222

Fri 30/1007:51 -

Nonstop6h 18m

Sat 31/1018:27 -

1 stop10h 58m

Deal found 16/9£230

Thu 3/1214:56 -

1 stop11h 43m

Thu 10/1213:36 -

1 stop7h 38m

Deal found 17/9£231

Wed 14/1018:40 -

1 stop9h 19m

Mon 19/1020:35 -

1 stop8h 24m

Deal found 17/9£231

Tue 3/1108:25 -

Nonstop6h 20m

Tue 10/1106:35 -

1 stop9h 30m

Deal found 19/9£200

Thu 7/117:40 -

1 stop8h 10m

Mon 11/119:45 -

2 stops9h 20m

Deal found 19/9£211

Wed 28/1009:45 -

1 stop8h 04m

Sun 1/1106:00 -

1 stop7h 59m

Deal found 18/9£236

Wed 30/909:30 -

1 stop8h 27m

Wed 7/1014:24 -

1 stop7h 35m

Deal found 14/9£236

Tue 10/1107:13 -

1 stop11h 48m

Wed 18/1115:08 -

1 stop11h 32m

Deal found 16/9£245

Fri 20/1109:35 -

Nonstop6h 26m

Fri 27/1110:50 -

1 stop10h 32m

Deal found 19/9£237

Tue 6/1007:45 -

Nonstop6h 40m

Mon 12/1021:54 -

Nonstop5h 46m

Deal found 15/9£267

Tue 27/1007:20 -

2 stops9h 00m

Fri 30/1014:40 -

1 stop7h 35m

Deal found 14/9£221

Tue 15/1210:34 -

Nonstop6h 05m

Tue 22/1213:00 -

1 stop7h 41m

Deal found 18/9£238

Wed 18/1107:13 -

1 stop11h 48m

Tue 29/1216:12 -

1 stop10h 16m

Deal found 18/9£265

Sun 1/1105:39 -

1 stop7h 43m

Sun 8/1121:15 -

1 stop10h 55m

Deal found 17/9£274

Sat 31/1007:20 -

1 stop11h 55m

Sat 7/1118:30 -

2 stops10h 35m

Deal found 16/9£228

Thu 29/1017:59 -

Nonstop6h 38m

Sun 1/1122:45 -

Nonstop5h 30m

Deal found 18/9£282

Tue 10/1107:03 -

1 stop9h 53m

Thu 12/1108:20 -

1 stop18h 26m

Deal found 18/9£265

Fri 11/1216:45 -

Nonstop6h 34m

Sun 13/1220:50 -

1 stop7h 49m

Deal found 17/9£242

Tue 22/1205:30 -

1 stop9h 50m

Tue 19/117:05 -

1 stop10h 06m

Deal found 18/9£274

Tue 3/1113:10 -

1 stop8h 15m

Tue 10/1106:55 -

1 stop7h 15m

Deal found 19/9£230

Wed 7/1005:45 -

2 stops11h 18m

Sat 17/1006:45 -

1 stop7h 52m

Deal found 17/9£289

Thu 22/1018:15 -

Nonstop5h 53m

Tue 27/1006:00 -

1 stop7h 59m

Deal found 16/9£249

Thu 29/1007:45 -

Nonstop6h 40m

Thu 5/1112:40 -

Nonstop5h 40m

Deal found 14/9£274

Wed 28/1007:03 -

1 stop13h 00m

Wed 4/1109:20 -

2 stops17h 20m

Deal found 17/9£277

Thu 29/1013:05 -

2 stops12h 00m

Thu 5/1109:40 -

2 stops11h 15m

Deal found 14/9£244

Thu 15/1006:00 -

1 stop9h 03m

Sun 18/1014:26 -

1 stop7h 28m

Deal found 18/9£304

Mon 2/1115:55 -

1 stop9h 54m

Thu 5/1106:00 -

1 stop10h 41m

Deal found 15/9£254

Tue 27/1017:45 -

Nonstop6h 38m

Thu 29/1007:00 -

Nonstop5h 45m

Deal found 16/9£282

Find flight deals from Boston to California

Round-trip from	£191
One-way from	£90
Popular in	April
Cheapest in	January
Average price	£248
Good round-trip deal	£140 or less
Good one-way deal	£171 or less

JetBlue
13/11-16/11
2 total stops
20h 18m total
Boston to California

Search Deals

Alaska Airlines
24/10-31/12
1 total stop
11h 53m total
Boston to California

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (£13 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£3 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from Boston Logan Intl to California.

Search Deals

Price to beat on a one-way flight from Boston Logan Intl to California.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonSanta Ana

BOS Boston Logan Intl - SNA Santa Ana J. Wayne/Orange Cnty

BOSSNA

Boston Logan Intl

Tue 3/11

05:00-10:05

1 stop8h 05m

Santa Ana J. Wayne/Orange Cnty

Wed 31/12

00:00-03:00

Nonstop0h 00m

£90

BostonSanta Ana

BOS Boston Logan Intl - SNA Santa Ana J. Wayne/Orange Cnty

BOSSNA

Boston Logan Intl

Wed 28/10

09:03-15:56

1 stop9h 53m

Santa Ana J. Wayne/Orange Cnty

Wed 31/12

00:00-03:00

Nonstop0h 00m

£90

BostonSanta Ana

BOS Boston Logan Intl - SNA Santa Ana J. Wayne/Orange Cnty

BOSSNA

Boston Logan Intl

Wed 13/1

05:05-10:15

1 stop8h 10m

Santa Ana J. Wayne/Orange Cnty

Wed 31/12

00:00-03:00

Nonstop0h 00m

£90

BostonSanta Ana

BOS Boston Logan Intl - SNA Santa Ana J. Wayne/Orange Cnty

BOSSNA

Boston Logan Intl

Thu 15/10

06:00-14:03

1 stop11h 03m

Santa Ana J. Wayne/Orange Cnty

Wed 31/12

00:00-03:00

Nonstop0h 00m

£98

BostonSanta Ana

BOS Boston Logan Intl - SNA Santa Ana J. Wayne/Orange Cnty

BOSSNA

Boston Logan Intl

Tue 6/10

07:45-14:03

1 stop9h 18m

Santa Ana J. Wayne/Orange Cnty

Wed 31/12

00:00-03:00

Nonstop0h 00m

£102

BostonSan Diego

BOS Boston Logan Intl - SAN San Diego

BOSSAN

Boston Logan Intl

Wed 9/12

11:20-18:15

2 stops9h 55m

San Diego

Wed 31/12

00:00-03:00

Nonstop0h 00m

£108

BostonSan Diego

BOS Boston Logan Intl - SAN San Diego

BOSSAN

Boston Logan Intl

Thu 7/1

07:08-13:47

1 stop9h 39m

San Diego

Wed 31/12

00:00-03:00

Nonstop0h 00m

£108

BostonSanta Ana

BOS Boston Logan Intl - SNA Santa Ana J. Wayne/Orange Cnty

BOSSNA

Boston Logan Intl

Tue 20/10

07:55-17:22

1 stop12h 27m

Santa Ana J. Wayne/Orange Cnty

Wed 31/12

00:00-03:00

Nonstop0h 00m

£111

BostonSan Diego

BOS Boston Logan Intl - SAN San Diego

BOSSAN

Boston Logan Intl

Wed 11/11

05:10-11:50

2 stops9h 40m

San Diego

Wed 31/12

00:00-03:00

Nonstop0h 00m

£115

BostonSan Diego

BOS Boston Logan Intl - SAN San Diego

BOSSAN

Boston Logan Intl

Fri 5/2

15:50-23:05

2 stops10h 15m

San Diego

Wed 31/12

00:00-03:00

Nonstop0h 00m

£126

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

BOS-SAN

BOS-LAX

BOS-SNA

BOS-LAS

BOS-SFO

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

BOS-USCA

BOS-SAN

BOS-LAX

BOS-SNA

BOS-LAS

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 £243). Flying from Boston to California in December is currently the most expensive (average of £341). 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?

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

The most flights from BOS to USCA are scheduled on a Friday (54 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 on average).

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

Airfare is typical for this route at the moment.

Boston to California flights typically cost between £206 and £330 in October.
The cheapest return price found within the last 5 days was £215 on Southwest (24 Oct–26 Oct).

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

Booking 27 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

Read reviews from past customers who have flown with Delta,JetBlue, andAmerican Airlines 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

8,591 reviews

Check prices

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

8,591 reviews

Delta

7.8

Good

8,591 reviews

Check prices

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

3,032 reviews

Delta

7.8

Good

8,591 reviews

Check prices

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

7.0

Good

12,087 reviews

Delta

7.8

Good

8,591 reviews

Check prices

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

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 £193, Southwest can have you in California from Boston in 6h 20m. 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 - Los Angeles, Boston Logan Intl - San Francisco 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 (94%), Icelandair (88%) and Japan Airlines (82%).
What are the cheapest flights from Boston to California?
While on average a flight from Boston to California is generally £212, our data shows the cheapest flight currently is £170. When looking at the most popular route, (Boston Logan Intl - Los Angeles), you can expect to pay £215 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 £243). Flying from Boston to California in December is currently the most expensive (average of £341). 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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Top 3 airlines flying from Boston to California

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest£134	Average£189	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
JetBlue	Cheapest£181	Average£409	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Delta	Cheapest£420	Average£446	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

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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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Cheap flights from Boston to California from £90

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Boston to California

Cheapest flights from Boston to CaliforniaExplore 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 19 September 2026.

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 19 September 2026.

Best flights from Boston to CaliforniaDiscover carefully curated flight deals from Boston to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Discover carefully curated flight deals from Boston to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Direct flights from Boston to CaliforniaExplore direct flight options from Boston to California based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 September 2026.

Explore direct flight options from Boston to California based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 September 2026.

Last-minute flights from Boston to CaliforniaDiscover last-minute flight deals from Boston to California. Data last updated 19 September 2026 and is based on user searches.

Discover last-minute flight deals from Boston to California. Data last updated 19 September 2026 and is based on user searches.

One-way flights from Boston to CaliforniaSearch for one-way flight options from Boston to California. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.

Search for one-way flight options from Boston to California. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.

Find flight deals from Boston to California

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to California that are best for you.

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.

Cheapflights Insights

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

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 19 September 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 19 September 2026.

The most flights from BOS to USCA are scheduled on a Friday (54 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 on average).

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

Airfare is typical for this route at the moment.

Boston to California flights typically cost between £206 and £330 in October.The cheapest return price found within the last 5 days was £215 on Southwest (24 Oct–26 Oct).

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

Booking 27 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

Read reviews from past customers who have flown with Delta,JetBlue, andAmerican Airlines 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.

Related info for your journey

What airport do you fly from for flights from Boston to California?

How popular is this Boston to California flight route?

How long is the flight from Boston to California?

What are the most popular routes from Boston to California?

What are the most reliable airlines from Boston to California?

What are the cheapest flights from Boston to California?

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

How can I find direct flights from Boston to California?

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

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

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 California

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to California by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Boston to California by cabin class

Find flights from Boston to California, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Boston and California flights

Browse other Boston and California flight options. Last updated on 19 September 2026.

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Top 3 airlines flying from Boston to California

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

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

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

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

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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 19 September 2026.

Best flights from Boston to California
Discover carefully curated flight deals from Boston to California that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Direct flights from Boston to California
Explore direct flight options from Boston to California based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 September 2026.

Last-minute flights from Boston to California
Discover last-minute flight deals from Boston to California. Data last updated 19 September 2026 and is based on user searches.

One-way flights from Boston to California
Search for one-way flight options from Boston to California. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.

Boston to California flights typically cost between £206 and £330 in October.
The cheapest return price found within the last 5 days was £215 on Southwest (24 Oct–26 Oct).