Cheap Flights from Boston to San Diego

Cheapest flights from Boston to San Diego

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Boston to San Diego. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$135

Alaska Airlines

Direct flight

6h 12m

08/29/2026

The cheapest one-way flight from Boston to San Diego departs on 08/29/2026, is operated by Alaska Airlines and costs $135

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Boston to San Diego

The fastest flight

6h 12m

Fastest flight from Boston to San Diego takes 6h 12m

Direct flights

Several times a week

There are direct flights on this route 2 days a week: We and Sa

Distance

4149km

Timezone difference

3h

The distance between Boston and San Diego is 4149km (2572 miles). The time difference between Boston and San Diego is 3h

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Boston to San Diego by month

In different months, ticket prices from Boston to San Diego vary: minimum — $135 (August 2026), maximum — $162 (February 2027). Typically, the flight costs $148–$162.

August 2026

Lowest price

on average:

$135

February 2027

Highest price

on average:

$162

Avg Price

Airlines operating on route

The Boston — San Diego route is served by multiple airlines, including JetBlue Airways and Alaska Airlines. This is convenient for those who want the best balance of price, schedule, and travel conditions. Tickets start from $135, and depending on season and promotions, even better deals may appear. With our service, you can easily compare available options and book tickets that match your plans. The variety of carriers allows flexible choices and comfortable travel without overpaying.

JetBlue Airways

starting at $259

Alaska Airlines

starting at $135

Non-stop flights from Boston to San Diego

A non-stop flight is the most convenient and comfortable way to fly from Boston to San Diego, despite the fact that sometimes flights with transfers can cost significantly less.

Boston — San Diego

BOS — SAN

02/24/2027

Departure

Direct flight

B6919

starting at $259

Boston — San Diego

BOS — SAN

08/29/2026

Departure

Direct flight

AS256

starting at $135

Schedule of direct flights from Boston to San Diego

There are most likely no direct flights on the Boston — San Diego route

Boston airports overview

Logan International Airport

•

BOS

4km

Primary airport serving Boston and the New England region, offering domestic and international flights with multiple terminals and direct public transit, ferry, and road connections to downtown.

Pease Air Force Base

•

PSM

93km

Near Portsmouth, New Hampshire; a joint military–civil airfield serving military operations and civilian flights, convenient for travel to the Seacoast region and southern New Hampshire.

•

San Diego airports overview

McClellan-Palomar Airport

•

CLD

46km

Serves Carlsbad and North County San Diego with regional commercial and general aviation flights, offering convenient access to coastal communities and business centers north of San Diego.

San Diego International Airport

•

SAN

5km

•

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from Boston to San Diego?

The cheapest flight ticket from Boston to San Diego according to data for the last 48 hours costs $135

When is the best time to buy air tickets on the route Boston — San Diego?

Often the best time to buy tickets from Boston to San Diego is 2 months before departure.

When is the cheapest time of year to fly from Boston to San Diego?

Based on statistics over the past years, the lowest prices for flights from Boston to San Diego can be found flying in these months: August, February.

How long does it take to fly from Boston to San Diego?

The fastest flights from Boston to San Diego start from 6 hours 12 minutes in the air.

Which airline can fly direct from Boston to San Diego?

The following airlines operate direct flights on the route Boston — San Diego: JetBlue Airways, Alaska Airlines

Special offers and sales on air tickets from Boston to San Diego

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

Boston — San Diego

Şubat 24

American Airlines

$115

Alternative routes

New Bedford ➜ San Diego•New Haven ➜ San Diego•Manchester ➜ San Diego•New York ➜ San Diego•Providence ➜ San Diego•Portland ➜ San Diego•Stamford ➜ San Diego•Boston ➜ Bakersfield•Boston ➜ Long Beach•Boston ➜ Mexicali•Boston ➜ Phoenix•Boston ➜ Santa Barbara•Boston ➜ Santa Maria•Boston ➜ Tijuana•Boston ➜ Yuma

•••••••••••••••••••

Cheapest one way flight

$135

Alaska Airlines

Direct flight

6h 12m

08/29/2026

The cheapest one-way flight from Boston to San Diego departs on 08/29/2026, is operated by Alaska Airlines and costs $135

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Boston to San Diego

The fastest flight