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Cheap flights from Boston to San Diego (BOS - SAN)

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The best prices from Boston to San Diego are usually found in September or January, booked 0 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

How to find the cheapest flight from
Boston (BOS) to San Diego (SAN)

BOS - SAN
Price
$297 - $408
SAN
Temperature
66.2 - 80.6 °F
SAN
Rainfall
0 - 2.8 inches
Popular in December High demand for flights, 15% potential price rise
Cheapest in September Best time to find cheap flights, 14% potential price drop
Round-trip from $297 From Boston to San Diego
One-way from $55 One-way flight from Boston to San Diego
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Boston to San Diego?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Boston to San Diego?

Find a great deal and save up to 19% by booking at least 33 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Boston to San Diego within the next two weeks, with the cheapest ticket starting at $86.

What is the cheapest month to fly from Boston to San Diego?

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, May can be a great choice for travel to San Diego. Flights to San Diego from Boston in May are about $98 on average during May, but can be found for as low as $58.

Cheap flights from Boston to San Diego in July, August 2020

The best prices found for BOS to SAN flights for July, August
29 Jul - 3 Aug
$141pp
BOS
Boston Logan Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl
21 Jul - 28 Jul
$144pp
BOS
Boston Logan Intl
Spirit Airlines
   
2 STOPS
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl
9 Jul - 14 Jul
$145pp
BOS
Boston Logan Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl

Boston to San Diego 2020 flight deals

Cheap flights to San Diego from Boston found for this year
7 Aug - 10 Aug
$90pp
BOS
Boston Logan Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
   
2 STOPS
BOS
Boston Logan Intl
12 Aug - 18 Aug
$97pp
BOS
Boston Logan Intl
Spirit Airlines
   
2 STOPS
SAN
San Diego
SAN
San Diego
Spirit Airlines
   
2 STOPS
BOS
Boston Logan Intl
7 Aug - 12 Aug
$112pp
BOS
Boston Logan Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
   
2 STOPS
BOS
Boston Logan Intl

Non-stop flights to San Diego from Boston

Save time with Boston to San Diego direct flight deals
26 Aug - 26 Aug
$231pp
BOS
Boston Logan Intl
JetBlue
Non-Stop
SAN
San Diego
SAN
San Diego
JetBlue
Non-Stop
BOS
Boston Logan Intl
25 Jul - 28 Jul
$237pp
BOS
Boston Logan Intl
JetBlue
Non-Stop
SAN
San Diego
SAN
San Diego
JetBlue
Non-Stop
BOS
Boston Logan Intl
25 Jul - 27 Jul
$247pp
BOS
Boston Logan Intl
JetBlue
Non-Stop
SAN
San Diego
SAN
San Diego
JetBlue
Non-Stop
BOS
Boston Logan Intl

Last minute flights from Boston to San Diego

Late deals on round-trip flights to San Diego from Boston, departing today and this week
28 Jun - 9 Jul
$255pp
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SAN
San Diego
SAN
San Diego
Spirit Airlines
   
2 STOPS
BOS
Boston Logan Intl
28 Jun - 8 Jul
$269pp
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SAN
San Diego
SAN
San Diego
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
28 Jun - 3 Aug
$274pp
BOS
Boston Logan Intl
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl

One-way flights to San Diego from Boston

The cheapest one-way flights from Boston to San Diego
3:05 am - 12:06 pm
Spirit Airlines
1 Stop
12h 01m
BOS - SAN
Spirit Airlines
$55
KAYAK
3:05 am - 12:06 pm
Spirit Airlines
1 Stop
12h 01m
BOS - SAN
Spirit Airlines
$57
lastminute.com
3:05 am - 12:06 pm
Spirit Airlines
1 Stop
12h 01m
BOS - SAN
Spirit Airlines
$64
FlyFar

Related info for your journey

Useful info, stats and facts about Boston to San Diego flights.

Flight FAQs

From Boston to San Diego

Are flight prices decreasing from Boston to San Diego due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Boston and San Diego for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Boston to San Diego for under $100 on Cheapflights?

Yes, there are multiple flights from Boston to San Diego for under $100. The cheapest flight booked recently is on Spirit Airlines for just $90, but on average you can expect to pay $129.

Are there nonstop flights from Boston to San Diego for under $300 on Cheapflights?

Cheapflights has at least 20 direct flights from Boston to San Diego under $300. A good price for a nonstop flight from Boston to San Diego is less than $285.

Are there last-minute flights available from Boston to San Diego for under $300?

There are currently 20+ open flights from Boston to San Diego within the next 7 days for less than $300.

How popular is this flight route?

Within the past month, 406 users have taken a look at flights from Boston Logan Intl to San Diego.

What is the cheapest airline for this route?

Currently, JetBlue Airways offers the cheapest flights from Boston to San Diego. On average 28 flights can be found for this airline route daily.

Does it rain more in Boston or San Diego?

Expected rainfall in Boston is less than in San Diego. You can expect this to be the case over the next 13 days.

Is Boston weather warmer or cooler than San Diego?

Temperatures around the 84 °F's can be experienced in July. The weather in San Diego is colder than in Boston. Plan for potential changes in flight availability as peak weather approaches in this location.

Alternative routes for Boston to San Diego

Destination information for San Diego

Things to know before you go. Useful info for your trip from Boston to San Diego
Average temperature for July in San Diego
78.8 °F
Avg rainfall for July in San Diego
0.1 ″

Airports servicing Boston

Airports servicing San Diego

Hourly flight availability from Boston to San Diego

Morning 6 AM to noon 66% of BOS to SAN departures
Afternoon Noon to 6 PM 33% of BOS to SAN departures
Early morning Midnight to 6 AM 1% of BOS to SAN departures
Evening 6 PM to midnight 0% of BOS to SAN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Boston to San Diego
Sunday
4 daily flights
Monday
4 daily flights
Tuesday
2 daily flights
Wednesday
4 daily flights
Thursday
2 daily flights
Friday
4 daily flights
Saturday
4 daily flights