$114 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 9/30. 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 round-trip prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angeles1 stop$250
San Francisco
San Francisco1 stop$282
San Diego
San Diegononstop$248
San Jose
San Jose1 stop$285
Palm Springs
Palm Springs1 stop$382
Fresno
Fresno1 stop$307
San Luis Obispo
San Luis Obispo1 stop$379
Bakersfield
Bakersfield1 stop$368
Arcata
Arcata1 stop$558
Redding
Redding2 stops$534
Merced
Merced1 stop$591
Reno
Reno1 stop$344
Los Angeles
Los Angeles1 stop$250
San Francisco
San Francisco1 stop$282
San Diego
San Diegononstop$248
San Jose
San Jose1 stop$285
Palm Springs
Palm Springs1 stop$382
Fresno
Fresno1 stop$307
San Luis Obispo
San Luis Obispo1 stop$379
Bakersfield
Bakersfield1 stop$368
Arcata
Arcata1 stop$558
Redding
Redding2 stops$534
Merced
Merced1 stop$591
Reno
Reno1 stop$344

Book Cheap Boston to California Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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 round-trip flight deals from Boston to California

Tue, Aug 18 - Tue, Aug 25
JetBlue Logo
6:05 am - 9:10 am
BOS
-
SAN
6h 05mnonstop
JetBlue Logo
8:40 pm - 5:19 am
SAN
-
BOS
5h 39mnonstop
$248JetBlue
Wed, Aug 19 - Tue, Aug 25
JetBlue Logo
4:20 pm - 7:29 pm
BOS
-
SAN
6h 09mnonstop
JetBlue Logo
8:40 pm - 5:19 am
SAN
-
BOS
5h 39mnonstop
$249JetBlue
Tue, Aug 25 - Sat, Aug 29
Southwest Logo
3:20 pm - 10:35 pm
BOS
-
SAN
10h 15m
1 stop
Southwest Logo
3:55 pm - 12:25 am
SAN
-
BOS
5h 30mnonstop
$250Southwest
Mon, Aug 24 - Mon, Aug 31
Alaska Airlines Logo
8:00 am - 11:12 am
BOS
-
SAN
6h 12mnonstop
Alaska Airlines Logo
8:59 pm - 5:49 am
SAN
-
BOS
5h 50mnonstop
$250Alaska Airlines
Tue, Aug 25 - Mon, Aug 31
Alaska Airlines Logo
8:00 am - 11:12 am
BOS
-
SAN
6h 12mnonstop
Alaska Airlines Logo
8:59 pm - 5:49 am
SAN
-
BOS
5h 50mnonstop
$250Alaska Airlines
Sat, Aug 29 - Fri, Sep 4
Frontier Logo
12:45 pm - 8:54 pm
BOS
-
LAX
11h 09m
1 stop
Frontier Logo
11:20 pm - 9:09 am
LAX
-
BOS
30h 49m
1 stop
$250Frontier
Tue, Sep 8 - Mon, Sep 14
Multiple Airlines Logo
6:00 am - 9:05 am
BOS
-
SAN
6h 05mnonstop
Multiple Airlines Logo
8:59 pm - 5:47 am
SAN
-
BOS
5h 48mnonstop
$250Multiple Airlines
Thu, Oct 15 - Mon, Oct 19
Multiple Airlines Logo
6:35 am - 9:52 am
BOS
-
SAN
6h 17mnonstop
Multiple Airlines Logo
8:34 pm - 5:21 am
SAN
-
BOS
5h 47mnonstop
$250Multiple Airlines
Wed, Sep 9 - Sat, Sep 12
Southwest Logo
10:05 am - 6:20 pm
BOS
-
SAN
11h 15m
2 stops
Southwest Logo
10:40 pm - 9:15 am
SAN
-
BOS
7h 35m
1 stop
$252Southwest
Wed, Oct 14 - Mon, Oct 19
Frontier Logo
11:05 am - 6:48 pm
BOS
-
LAX
10h 43m
1 stop
Frontier Logo
10:27 pm - 10:52 am
LAX
-
BOS
33h 25m
2 stops
$254Frontier
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 round-trip flight from Boston to California?

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

Flight prices are below average for this route right now.

Flights to California from Boston usually cost between $313 and $513 in August.
The lowest price found in the past 5 days was $250 on Frontier (Aug 29-Sep 4).

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 $206 round-trip. The most popular route is from Boston (BOS) to San Francisco (SFO), and the cheapest round-trip airline ticket found on this route in the last 5 days was $244.

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 at night, when round-trip flights cost $379 on average. Morning departures are around 28% cheaper than evening flights, on average. The most expensive time of day to fly to California is generally in the evening, which is peak travel time and where the average cost of a ticket is $571.

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

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $406, prices are generally cheapest when you fly direct.

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 $325 (return) on average. On the other hand, the most expensive months are December and April, when the average cost of round-trip tickets is $450 and $448 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.

If you are looking for a flight deal from Boston to California, look for departures on Thursdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from California, Tuesday is the cheapest day to fly and Sunday is 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 the 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

Low season

September

Cheapest flight

$114
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Boston to Ontario

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

Insights shared by verified travelers 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 travelers 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 round-trip 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 cheap flights to California

  • Looking for a cheap flight? 25% of our users found tickets from Boston to the following destinations at these prices or less: Los Angeles $243 one-way - $355 round-trip; San Francisco $234 one-way - $355 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.

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

Information on your arrival and departure airports