£107 Find Cheap Flights from Boston to California – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to California departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from Boston to California

Cheapest return prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angelesdirect£185
San Francisco
San Francisco1 stop£209
San Diego
San Diegodirect£189
Los Angeles
Los Angelesdirect£185
San Francisco
San Francisco1 stop£209
San Diego
San Diegodirect£189

Book Cheap Boston to California Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Boston to California that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Boston to California

Wed, 11 Nov - Sun, 15 Nov
JetBlue Logo
15:50 - 19:21
BOS
-
LAX
6h 31mdirect
JetBlue Logo
20:45 - 05:07
LAX
-
BOS
5h 22mdirect
£185JetBlue
Tue, 10 Nov - Sun, 15 Nov
JetBlue Logo
17:35 - 21:08
BOS
-
LAX
6h 33mdirect
JetBlue Logo
22:30 - 06:59
LAX
-
BOS
5h 29mdirect
£185JetBlue
Tue, 22 Sep - Mon, 5 Oct
JetBlue Logo
08:25 - 11:33
BOS
-
LAX
6h 08mdirect
JetBlue Logo
20:23 - 05:27
LAX
-
BOS
6h 04mdirect
£185JetBlue
Fri, 11 Sep - Mon, 14 Sep
JetBlue Logo
06:05 - 09:14
BOS
-
LAX
6h 09mdirect
JetBlue Logo
22:20 - 07:00
LAX
-
BOS
5h 40mdirect
£185JetBlue
Wed, 23 Sep - Sat, 26 Sep
Delta Logo
17:10 - 20:15
BOS
-
SAN
6h 05mdirect
Delta Logo
22:04 - 06:40
SAN
-
BOS
5h 36mdirect
£193Delta
Sat, 22 Aug - Sat, 29 Aug
Delta Logo
17:20 - 20:35
BOS
-
SAN
6h 15mdirect
Delta Logo
22:02 - 06:40
SAN
-
BOS
5h 38mdirect
£193Delta
Mon, 31 Aug - Mon, 7 Sep
Delta Logo
17:20 - 20:35
BOS
-
SAN
6h 15mdirect
Delta Logo
22:02 - 06:40
SAN
-
BOS
5h 38mdirect
£193Delta
Sat, 5 Sep - Sat, 12 Sep
Frontier Logo
12:45 - 19:03
BOS
-
SFO
9h 18m
1 stop
Frontier Logo
22:48 - 12:05
SFO
-
BOS
10h 17m
1 stop
£209Frontier
Sat, 29 Aug - Tue, 1 Sep
Frontier Logo
12:45 - 19:03
BOS
-
SFO
9h 18m
1 stop
Frontier Logo
22:35 - 11:47
SFO
-
BOS
10h 12m
1 stop
£209Frontier
Sun, 6 Sep - Fri, 11 Sep
Frontier Logo
09:36 - 20:46
BOS
-
SFO
14h 10m
2 stops
Frontier Logo
22:48 - 12:05
SFO
-
BOS
10h 17m
1 stop
£214Frontier
Booking Insights

KAYAK's insights & trends for Boston to California flights

Get data-powered insights and trends into flights from Boston to California to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Boston to California?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Boston to California departing in September.

Flight prices are below average for this route right now.

Flights to California from Boston usually cost between £235 and £385 in September.
The lowest price found in the past 5 days was £185 on JetBlue (16 Sept–21 Sept).

What is the cheapest Boston to California flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to California from Boston found in the last 5 days was to San Diego, at £110 return. The most popular route is from Boston (BOS) to Los Angeles (LAX), and the cheapest return airline ticket found on this route in the last 5 days was £1,430.

What is the cheapest time of day to fly to California?

The average price for all round-trip flights from Boston to California depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to California is generally in the evening, when retur flights cost £190 on average. Morning departures are around 105% more expensive than evening flights, on average. The most expensive time of day to fly to California is generally in the morning, which is peak travel time and where the average cost of a ticket is £388.

Can I save money by flying with a stopover from Boston to California?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 2 stops stopover the cheapest option at £196 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to California, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to California is January, when tickets cost £244 (return) on average. On the other hand, the most expensive months are December and April, when the average cost of return tickets is £338 and £336 respectively.

What’s the cheapest day of the week to fly from Boston to California?

The average price of all round-trip flights from Boston to California clicked on KAYAK for each day over the last 12 months.

For Boston to California, Friday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from California back to Boston, the best deals are generally found on Wednesday, with Tuesday being the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to California, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Boston to California, you should book around 3 weeks before departure, which saves you about 30% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know - Cheap tickets from Boston to California

Low season

September

Cheapest flight

£107
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (7% more expensive on average)
Flight from Boston to San Diego

Flights from Boston to California: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Boston to California 
GeraldFlew with Delta
BOS
-
SFO
Mar 2025
Book a flight early in the morning. The plane & crew will have arrived the previous night
PaulaFlew with Alaska Airlines
BOS
-
SFO
Jul 2024
Get your boarding pass online and save it to your wallet App on the iPhone. Makes it so easy
CarolFlew with Alaska Airlines
BOS
-
SAN
Jul 2024
Bring your own entertainment (book, puzzles, devices). T mobile offers free internet with Alaska!
Verified travelerFlew with Alaska Airlines
BOS
-
SAN
Mar 2024
Be prepared to wait in long line for shuttle to car rental complex.

FAQs - booking California flights

  • What are the common layover cities for flights from Boston to California?

    When traveling from Boston to California, here are various layover destinations that you could choose to stop by. The layover cities from Boston to California depend on the origin airport, the airline used, and the destination airport. When flying from Boston Airport to Los Angeles International Airport, the common layovers are Washington D.C, Philadelphia, Nashville, San Francisco, Phoenix, Chicago, and Newark. The other flights traveling from Boston to California have layovers in these cities.

  • Which airlines traveling from Boston to California offer eco-friendly flights?

    It takes about 4,184 lbs of carbon per person for a flight to travel from Boston to California. If you are looking to travel on an eco-friendlier flight, there are many traveling the route. You could take flights from American Airlines and Delta Air Lines, offering eco-friendly travel options plying the route. Consider flying American Airlines as they emit 36% less CO₂ traveling the route, guaranteeing environmentally friendly flights.

  • Are there nonstop flights from Boston to California?

    The average travel time for a flight from Boston to California is about 6 hours. If you prefer direct flights, you can choose from the many nonstop flights heading to California from Boston to travel with. Most of the nonstop flights flying the route depart from Boston-Logan International Airport and arrive at San Francisco Airport. If you are headed to the Los Angeles area, you can take the nonstop flight from BOS to LAX. Flying from BOS to San Diego Airport (SAN) is also a good alternative for plying the route.

  • Does Boston Logan International Airport (BOS) offer family services?

    Yes. If you are traveling with your family to California and are taking your flight from BOS, there are several family services that you can enjoy at the airport. BOS has nursing suites available in terminal A on both the airside and landside, terminal B close to gates B37, B7, and B18, terminal C next to C8, and terminal E near gates E1 and E9. If you have little kids, you can take them to the play area to burn off some energy before your flight. The Children’s Play Areas are terminal A, close to gate 18, terminal B, next to Gates 25, 15, 16, and 30 to 36. The airport also has numerous chairs that you can use for rest when calming your fussy baby.

  • How does KAYAK find such low prices on flights from Boston to California?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to California.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to California?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to California is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to California?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Boston to California with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to California?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Boston to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding a cheap flight from Boston to California

  • Looking for a cheap flight from Boston to California? 25% of our users found tickets from Boston to California for the following prices or less: Los Angeles £234 one-way - £1,455 round-trip
  • California has two prime international airports, San Francisco and Los Angeles. Los Angeles International Airport (LAX) is the main airport, the hub for American, Alaska, Delta, and United Airlines, and the focus city for Allegiant Air, New Zealand, Qantas, Norwegian, and Southwest Airlines.
  • When flying into LAX from Boston, the airport has inter-terminal shuttles providing transit between the terminals. The pick-up points for the shuttles are in front of each terminal on the lower arrivals level.
  • San Francisco International Airport (SFO) has a museum, the SFO Museum, in the airport. When flying to California from Boston, consider the BOS to SFO route to visit the museum and learn about California’s history.
  • When flying to California’s top attraction, Disneyland Park, you could fly into John Wayne Airport (SNA), the closest to the park, about 24 km (15 miles) away.
  • If you are looking for a destination airport linked to public transport, you could fly into SFO from Boston. San Francisco Bay Area links to cable cars, muni subway, bus, and light rail systems, so flying SFO is ideal when considering public transit in California.

Reviews of the top airlines flying from Boston to California

 
See real verified KAYAK customer reviews for airlines flying from Boston to California. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to California? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8483 reviews
7.2Food
8.1Boarding
7.8Comfort
7.8Entertainment
8.5Crew
Airline reviews

Flight from Savannah arrived very late and we did not take off till 2 hours after scheduled departure!

2.0 MediocreBruce, Jul 2026
BOS - LGA
Read more Delta reviews

Flight from Savannah arrived very late and we did not take off till 2 hours after scheduled departure!

It is usually very pleasant. Good service for the price, international flights are even better

Flight attendant was very poor in taking care or showing attention. I slept up front for a few and missed the snacks. She saw me many times, went by me many times and never once asked if I needed anything. The whole 2 hours flight. And this is to a Diamond member in first.

I thought the service was very nice and pleasant. There were no hiccups and no issues so overall a good experience.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Seats are much much more comfortable than United, which is what I usually fly

Whole experience was poor. Delayed 2 hours. Lied about the delays. Was all jet blues fault and tried to blame on air traffic control. Sent out other let trips and wouldn't allow people to switch aircraft.

It was fine for what it was. It’s not luxury travel but it was efficient, for the most part. Having my carry-on transferred into luggage however, was unwelcome.

I was seated next to an autistic child who was out of control and had a child behind me kicking my seat for most of the trip. I will never fly JetBlue again. Ever. I don't care how cheap it is. It's terrible.

Great price, easy check in, love the free drinks and snacks, and nice crew. The only negative part was waiting for your seat assignment 5 minutes before boarding, and the seats are a bit uncomfortable.

All airline travel outside of First or Business class is an ordeal to be endured. This trip was ok, small o, small k.

Flight emergency landed in Chicago due to “Odor” in back of plane . Had to buy ANOTHER TICKET to get to Boston cash out of my own pocket . Then they would notchange my return flight time without a 400. Charge!!!! Insulting.

we were an hour delayed after boarding and given no reason. Headsets cost money. Also there were openrows with no one setting in them but we were told we were not allowed to swtich.

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

Service for food to our seat was a bit slow. Snack choices were just pretzels or baked chips. My seat cushion was not attached. Other than Barbie, video choice were not very good or current.

almost 4 hour delay as they over booked and had to wait for 8-10 volunteers to agree to travel next day.

Everything you need to know for your flight from Boston to California

Information on your arrival and departure airports