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.

$129 CHEAP FLIGHTS from California to Boston

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Cheap Flights from California to Boston

Cheap flights from California to Boston with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Round-trip

One-way

Last minute

Direct

Mon, Nov 2 - Mon, Nov 9

9:07 pm - 5:46 amSAN San Diego-BOS Boston Logan Intl

5h 39mnonstop

5:10 pm - 8:40 pmBOS Boston Logan Intl-SAN San Diego

6h 30mnonstop

$230Alaska Airlines

Mon, Nov 2 - Mon, Nov 9

9:07 pm - 5:46 amSAN San Diego-BOS Boston Logan Intl

5h 39mnonstop

5:30 am - 10:26 amBOS Boston Logan Intl-SAN San Diego

7h 56m1 stop Detroit Metropolitan Wayne County

$240Multiple Airlines

Mon, Nov 9 - Thu, Nov 12

9:40 pm - 10:41 amSAN San Diego-BOS Boston Logan Intl

10h 01m1 stop New York John F Kennedy Intl

1:00 pm - 8:22 pmBOS Boston Logan Intl-SAN San Diego

10h 22m1 stop New York John F Kennedy Intl

$241JetBlue

Mon, Nov 9 - Thu, Nov 12

2:07 pm - 10:59 pmSAN San Diego-BOS Boston Logan Intl

5h 52mnonstop

1:00 pm - 8:22 pmBOS Boston Logan Intl-SAN San Diego

10h 22m1 stop New York John F Kennedy Intl

$241JetBlue

Thu, Nov 5 - Wed, Nov 11

9:07 pm - 5:46 amSAN San Diego-BOS Boston Logan Intl

5h 39mnonstop

7:03 am - 10:34 amBOS Boston Logan Intl-SAN San Diego

6h 31mnonstop

$248Alaska Airlines

Tue, Dec 1 - Tue, Dec 15

9:29 pm - 5:58 amSAN San Diego-BOS Boston Logan Intl

5h 29mnonstop

6:13 pm - 9:55 pmBOS Boston Logan Intl-SAN San Diego

6h 42mnonstop

$253Multiple Airlines

Tue, Dec 8 - Tue, Dec 15

11:25 am - 7:45 pmSAN San Diego-BOS Boston Logan Intl

5h 20mnonstop

8:25 am - 11:45 amBOS Boston Logan Intl-SAN San Diego

6h 20mnonstop

$257Southwest

Mon, Nov 2 - Mon, Nov 9

9:25 am - 5:50 pmSAN San Diego-BOS Boston Logan Intl

5h 25mnonstop

8:15 am - 11:40 amBOS Boston Logan Intl-SAN San Diego

6h 25mnonstop

$257Southwest

Sat, Jan 23 - Mon, Feb 8

10:00 pm - 6:38 amSAN San Diego-BOS Boston Logan Intl

5h 38mnonstop

5:15 pm - 8:48 pmBOS Boston Logan Intl-SAN San Diego

6h 33mnonstop

$257Delta

Thu, Dec 24 - Tue, Jan 5

10:13 pm - 6:40 amSAN San Diego-BOS Boston Logan Intl

5h 27mnonstop

5:15 pm - 8:48 pmBOS Boston Logan Intl-SAN San Diego

6h 33mnonstop

$257Delta

Tue, Oct 20 - Tue, Nov 17

4:31 pm - 5:27 amSJC San Jose-BOS Boston Logan Intl

9h 56m1 stop Los Angeles

5:30 am - 11:50 amBOS Boston Logan Intl-SJC San Jose

9h 20m1 stop Atlanta Hartsfield-Jackson

$330Delta

Fri, Oct 16 - Thu, Oct 22

7:16 pm - 5:45 amSJC San Jose-BOS Boston Logan Intl

7h 29m1 stop Phoenix Sky Harbor Intl

5:17 am - 11:04 amBOS Boston Logan Intl-SJC San Jose

8h 47m1 stop Dallas/Fort Worth

$335American Airlines

Tue, Oct 20 - Tue, Nov 17

11:00 pm - 11:10 amSJC San Jose-BOS Boston Logan Intl

9h 10m1 stop Chicago Midway

5:00 am - 12:15 pmBOS Boston Logan Intl-SJC San Jose

10h 15m2 stops Denver Intl Las Vegas Harry Reid Intl

$335Southwest

Sun, Oct 18 - Thu, Oct 22

10:45 pm - 11:02 amSJC San Jose-BOS Boston Logan Intl

9h 17m1 stop Atlanta Hartsfield-Jackson

6:05 am - 12:47 pmBOS Boston Logan Intl-SJC San Jose

9h 42m1 stop Salt Lake City

$335Delta

Fri, Oct 16 - Fri, Oct 23

7:16 pm - 5:45 amSJC San Jose-BOS Boston Logan Intl

7h 29m1 stop Phoenix Sky Harbor Intl

8:45 am - 3:41 pmBOS Boston Logan Intl-SJC San Jose

9h 56m1 stop Phoenix Sky Harbor Intl

$335American Airlines

Mon, Oct 19 - Sat, Oct 31

12:14 am - 11:52 amLAX Los Angeles-BOS Boston Logan Intl

8h 38m1 stop Atlanta Hartsfield-Jackson

11:27 am - 5:53 pmBOS Boston Logan Intl-LAX Los Angeles

9h 26m1 stop Atlanta Hartsfield-Jackson

$343Frontier

Sat, Oct 17 - Sat, Oct 24

6:00 am - 5:10 pmSMF Sacramento Intl-BOS Boston Logan Intl

8h 10m1 stop San Francisco

5:00 pm - 10:46 pmBOS Boston Logan Intl-SMF Sacramento Intl

8h 46m1 stop Chicago O'Hare Intl

$347United Airlines

Sat, Oct 17 - Sat, Oct 24

8:00 pm - 8:05 amSMF Sacramento Intl-BOS Boston Logan Intl

9h 05m2 stops Las Vegas Harry Reid Intl Baltimore/Washington

5:25 am - 10:40 amBOS Boston Logan Intl-SMF Sacramento Intl

8h 15m1 stop Lambert-St Louis

$352Southwest

Mon, Oct 19 - Tue, Oct 27

12:14 am - 11:52 amLAX Los Angeles-BOS Boston Logan Intl

8h 38m1 stop Atlanta Hartsfield-Jackson

11:12 am - 5:53 pmBOS Boston Logan Intl-LAX Los Angeles

9h 41m1 stop Atlanta Hartsfield-Jackson

$360Frontier

Mon, Oct 19 - Sat, Oct 24

10:00 am - 8:57 pmFAT Fresno Airterminal-BOS Boston Logan Intl

7h 57m1 stop San Francisco

11:30 am - 5:46 pmBOS Boston Logan Intl-FAT Fresno Airterminal

9h 16m1 stop San Francisco

$367United Airlines

Low season	January
High season	July
Cheapest flight	$129

Best time to beat the crowds with an average 27% drop in price.

Most popular time to fly with an average 11% increase in price.

Flight from San Diego to Boston

alyciaFlew with American Airlines-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-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-Jan 2025

At least two hour connection Buy food pre-flight

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.

Hampton Beach

Everett

Revere

Warwick

Hampton

Middletown

South Portland

Wells

Waltham

Plymouth

Brookline

Woburn

Concord

Gloucester

Burlington

Seekonk

Danvers

York Beach

West Yarmouth

Somerville

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$129 Find Cheap Flights from California to Boston - Compare and Save

Cheap Flights from California to Boston

Cheap flights from California to Boston with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

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High season

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

FAQs for booking flights from California to Boston

Traveling to a place near Boston?

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Complete your trip to Boston with a hotel stay or car rental

Information on the airport you'll fly into in Boston

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