Cheap Flights from Boston, MA to San Diego, CA from $115

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On Cheapflightsplus.com you will find 7 direct and 423 connecting flights from Boston to San Diego. You can compare airfare deals from 7 airlines and multiple travel sites from $115, book and save on cheap plane tickets and last minute offers. Also check out BOS-SAN flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Boston to San Diego Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $115 (one-way), $197 (round-trip).

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Best Flights from Boston to San Diego Today

Take a look at the list of non stop flights and flights with layovers from Boston to San Diego with the lowest price of $115. The fastest direct flight takes 6h 5m and the fastest connecting – 7h 38m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $118 Find flight	07:45 Boston Logan	10:50 San Diego San Diego	6h 5m	Hawaiian Airlines	HA4821
from $122 Find flight	07:45 Boston Logan	10:50 San Diego San Diego	6h 5m	Alaska Airlines	AS260
from $138 Find flight	08:40 Boston Logan	12:01 San Diego San Diego	6h 21m	Hawaiian Airlines	HA4832
from $115 Find flight	10:39 Boston Logan	16:22 San Diego San Diego	8h 43m layover 1h 59m - Des Moines	Allegiant Air	G4433 G42063
from $144 Find flight	17:37 Boston Logan	23:59 San Diego San Diego	9h 22m layover 0h 40m - Portland	Hawaiian Airlines	HA6255 HA6237
from $138 Find flight	17:42 Boston Logan	18:03+1 день San Diego San Diego	27h 21m layover 1h 4m - Orlando 16h 44m - Las Vegas	Spirit Airlines	NK2093 NK2292 NK2295
from $167 Find flight	09:46 Boston Logan	13:17+1 день San Diego San Diego	30h 31m layover 19h 37m - Dallas 2h 26m - Las Vegas	Spirit Airlines	NK2150 NK2354 NK2295

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on September 18, 2025

Flight Schedule Boston (Massachusetts) to San Diego (California)

Full flight schedule will help you in detecting at what time planes fly from Boston to San Diego. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
07:45 — 10:50	07:45 — 10:50 HA4821 Hawaiian Airlines Boston — San Diego	6h 5m	Find flight from$118
07:45 — 10:50	07:45 — 10:50 AS260 Alaska Airlines Boston — San Diego	6h 5m	Find flight from$122
07:45 — 10:50	07:45 — 10:50 HA4789 Hawaiian Airlines Boston — San Diego	6h 5m	Find flight from$139
08:40 — 12:01	08:40 — 12:01 HA4832 Hawaiian Airlines Boston — San Diego	6h 21m	Find flight from$138
08:40 — 11:50	08:40 — 11:50 HA4820 Hawaiian Airlines Boston — San Diego	6h 10m	Find flight from$139
10:39 — 16:22	10:39 — 12:46 G4433 Allegiant Air Boston — Des Moines 1h 59m stop 14:45 — 16:22 G42063 Allegiant Air Des Moines — San Diego	8h 43m including layover	Find flight from$115
10:39 — 16:10	10:39 — 12:46 G4433 Allegiant Air Boston — Des Moines 1h 53m stop 14:39 — 16:10 G42074 Allegiant Air Des Moines — San Diego	8h 31m including layover	Find flight from$126
10:39 — 16:19	10:39 — 12:46 G4433 Allegiant Air Boston — Des Moines 1h 57m stop 14:43 — 16:19 G4474 Allegiant Air Des Moines — San Diego	8h 40m including layover	Find flight from$128
15:49 — 19:53 +1 day	15:49 — 19:13 NK2127 Spirit Airlines Boston — Miami 2h 55m stop 22:08 — 00:25 NK777 Spirit Airlines Miami — Las Vegas 18h 11m stop 18:36 — 19:53 NK2020 Spirit Airlines Las Vegas — San Diego	31h 4m including layover	Find flight from$138
16:44 — 18:26 +1 day	15:49 — 19:13 NK2127 Spirit Airlines Boston — Miami 2h 10m stop 22:08 — 00:25 NK777 Spirit Airlines Miami — Las Vegas 16h 15m stop 16:43 — 18:03 NK2295 Spirit Airlines Las Vegas — San Diego	28h 42m including layover	Find flight from$138
16:44 — 23:29 +1 day	15:49 — 19:13 NK2127 Spirit Airlines Boston — Miami 2h 10m stop 22:08 — 00:25 NK777 Spirit Airlines Miami — Las Vegas 21h 21m stop 22:42 — 23:56 NK2390 Spirit Airlines Las Vegas — San Diego	33h 45m including layover	Find flight from$138
16:49 — 20:12	16:49 — 20:12 AS505 Alaska Airlines Boston — San Diego	6h 23m	Find flight from$142
17:08 — 20:19	17:08 — 20:19 AS389 Alaska Airlines Boston — San Diego	6h 11m	Find flight from$142
17:36 — 23:29 +1 day	17:42 — 20:53 NK2093 Spirit Airlines Boston — Orlando 1h 5m stop 21:57 — 23:59 NK2292 Spirit Airlines Orlando — Las Vegas 21h 56m stop 22:42 — 23:56 NK2390 Spirit Airlines Las Vegas — San Diego	32h 53m including layover	Find flight from$138
17:42 — 18:03 +1 day	17:42 — 20:53 NK2093 Spirit Airlines Boston — Orlando 1h 4m stop 21:57 — 23:59 NK2292 Spirit Airlines Orlando — Las Vegas 16h 44m stop 16:43 — 18:03 NK2295 Spirit Airlines Las Vegas — San Diego	27h 21m including layover	Find flight from$138

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on September 18, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Boston to San Diego depends on and how to choose the most interesting flight option for you.

Distance between Boston and San Diego is 4156 miles. Time difference between the cities is 3h. Airplanes depart 05:25 to 22:40 from 4 Boston airports and arrive 05:25 to 22:40 to 11 San Diego airports. Average flight time is 6h 10m.

The fastest flight 6h 5m
Average flight time 6h 10m
The earliest flight 05:25
The latest flight 22:40
Distance 2583 ml

The cheapest months to travel to San Diego are june (from 115 $), september (from 118 $), august (from 119 $).

The most expensive months are february (from 252 $), december (from 247 $), november (from 227 $).

What is the lowest airfare Boston to San Diego?

The cheapest plane ticket found by our users is $115. This airfare is for economy class on one-way G4433 flight by Allegiant Air for June 6, 2025 which leaves Logan in Boston at 10:39 am and arrives at San Diego San Diego at 16:22.

Economy class

$115

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Business class

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First class

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Popular Airlines on the Route

The flight Boston — San Diego is served by 7 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 48 departures per week at the price of from $ 122 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 12254.

Direct flights

There are 7 nonstop flights on the route. The fastest direct flight is HA4821 by Hawaiian Airlines takes 6h 5m and the cheapest is G4433 by Allegiant Air for $118.

AS - Alaska Airlines

from $122

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HA - Hawaiian Airlines

from $118

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Connecting Flights

There are 423 flights with layovers on the route. The fastest connecting flight is UA497 by United Airlines takes 7h 38m and the cheapest is G4433 by Allegiant Air for $115.

AS - Alaska Airlines

from $152

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SY - Sun Country Airlines

from $186

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HA - Hawaiian Airlines

from $144

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UA - United Airlines

from $170

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TP - TAP Portugal

from $1364

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G4 - Allegiant Air

from $115

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NK - Spirit Airlines

from $138

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Airports

You can fly from Boston to San Diego from 4 airports (Boston City Heliport, Boston RT128 Rail, Boston South Rail, Logan).

Boston airports

Boston City Heliport-JBC

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Boston RT128 Rail-ZRU

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Boston South Rail-ZTO

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Logan-BOS

from $115
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San Diego airports

San Diego-SAN

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San Diego Regional-USA

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Gillespie Field-SEE

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Golden Triangle Reg.-GTR

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El Cajon-CJN

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Lowndes County-UBS

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Miramar NAS-NKX

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Montgomery Field-MYF

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North Island NAS-NZY

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Brown Field Municipal-SDM

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AFB-CBM

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Airplanes

There are flights to San Diego from Boston by 7 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Boston

You may also consider searching for discounted plane tickets to some other popular places from Boston within United States.

Boston — New York

from $57

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Boston — Orlando

from $67

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Boston — Chicago

from $59

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Boston — Miami

from $56

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Boston — Washington D.C.

from $64

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Boston — Denver

from $65

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Boston — Nashville

from $71

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Boston — Tampa

from $63

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Boston — Las Vegas

from $63

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Boston — Seattle

from $60

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Top International Destinations from Boston

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Boston — London

from $76

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Boston — Paris

from $76

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Boston — Toronto

from $54

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Boston — Dublin

from $54

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Boston — Aruba

from $69

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Boston — Rome

from $77

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Boston — Cancun

from $78

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Boston — Lisbon

from $66

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Boston — Montreal

from $77

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Boston — Barcelona

from $67

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How to book a plane ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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