BOS

$133 Find Cheap Flights from California to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boston departing on 6/5. 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.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from California to Boston

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

Wed, May 27 - Wed, Jun 3
United Airlines Logo
10:40 pm - 9:39 am
SAN
-
BOS
7h 59m
1 stop
United Airlines Logo
6:26 pm - 11:54 pm
BOS
-
SAN
8h 28m
1 stop
$252United Airlines
Mon, Jun 1 - Fri, Jun 5
American Airlines Logo
9:25 pm - 9:22 am
SAN
-
BOS
8h 57m
1 stop
American Airlines Logo
12:39 pm - 8:07 pm
BOS
-
SAN
10h 28m
1 stop
$256American Airlines
Tue, Jun 2 - Tue, Aug 25
Multiple Airlines Logo
8:55 pm - 5:03 am
LAS
-
BOS
5h 08mnonstop
Multiple Airlines Logo
9:12 am - 8:39 pm
BOS
-
LAS
14h 27m
1 stop
$259Multiple Airlines
Tue, Oct 13 - Sat, Oct 17
Frontier Logo
10:12 pm - 10:09 am
LAS
-
BOS
8h 57m
1 stop
Frontier Logo
11:05 am - 9:26 am
BOS
-
LAS
25h 21m
1 stop
$260Frontier
Wed, Jun 3 - Wed, Jun 10
Delta Logo
9:49 pm - 6:30 am
SAN
-
BOS
5h 41mnonstop
Delta Logo
5:10 pm - 8:26 pm
BOS
-
SAN
6h 16mnonstop
$262Delta
Wed, Jun 3 - Wed, Jun 3
JetBlue Logo
6:00 am - 2:09 pm
LAS
-
BOS
5h 09mnonstop
JetBlue Logo
5:01 pm - 8:03 pm
BOS
-
LAS
6h 02mnonstop
$262JetBlue
Sat, Jul 18 - Sat, Jul 25
Multiple Airlines Logo
7:59 am - 5:40 am
LAS
-
BOS
18h 41m
1 stop
Multiple Airlines Logo
11:05 am - 8:10 pm
BOS
-
LAS
12h 05m
1 stop
$263Multiple Airlines
Wed, Jun 3 - Wed, Aug 19
Delta Logo
10:35 am - 6:40 pm
LAS
-
BOS
5h 05mnonstop
Delta Logo
7:50 am - 10:32 am
BOS
-
LAS
5h 42mnonstop
$267Delta
Thu, Jul 9 - Sat, Jul 11
Frontier Logo
10:59 am - 1:23 am
LAX
-
BOS
11h 24m
1 stop
Frontier Logo
6:00 am - 5:16 pm
BOS
-
LAX
14h 16m
1 stop
$270Frontier
Wed, Sep 2 - Fri, Sep 18
JetBlue Logo
1:55 pm - 10:36 pm
LAX
-
BOS
5h 41mnonstop
JetBlue Logo
6:15 am - 9:37 am
BOS
-
LAX
6h 22mnonstop
$272JetBlue
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$133
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from San Jose to Boston

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

Insights shared by verified travelers who flew the route from California to Boston 
Learn how KAYAK collects reviews and tips from users.
alyciaFlew with American Airlines
LAX
-
BOS
Mar 2026
Switching terminals in Boston was a VERY long walk -- dont cut your connection close if you are going from B to E
NicoleFlew with JetBlue
LAX
-
BOS
Apr 2026
Bring your own snacks/food. Extra legroom is nice but not really worth the extra money, unless you want free alcohol.
ericFlew with Air New Zealand
SFO
-
BOS
Jan 2025
At least two hour connection Buy food pre-flight

FAQs for booking flights from California to Boston

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

    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 California to Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from 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 California to Boston?

    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 to Boston with an airline and back to California with another airline.

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

    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 to Boston from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Hampton
Warwick
Waltham
Wells
Everett
Plymouth
Middletown
Gloucester
Concord
Woburn
Brookline
Revere
York Beach
Burlington
Danvers
West Yarmouth
Braintree
South Portland
Somerville

Everything you need to know for your flight to Boston

Information on the airport you'll fly into in Boston

Boston (BOS)