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 August or May, booked 1 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
$254 - $408
SAN
Temperature
66.2 - 80.6 °F
SAN
Rainfall
0 - 2.8 inches

Popular in

December

High demand for flights, 25% potential price rise

Cheapest in

August

Best time to find cheap flights, 17% potential price drop

Round-trip from

$254

From Boston to San Diego

One-way from

$79

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 27% by booking at least 17 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 $73.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, July can be a great choice for travel to San Diego. Flights to San Diego from Boston in July are about $80 on average during July, but can be found for as low as $44.

When is the cheapest time to fly from Boston to San Diego (BOS - SAN)?

It’s optimal to fly from Boston to San Diego at noon. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight in the morning.

Cheap flights from Boston to San Diego in February, March 2021

24 Mar - 31 Mar
$137pp
BOS
Boston Logan Intl
Frontier
   
2 STOPS
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
BOS
Boston Logan Intl
29 Mar - 31 Mar
$138pp
BOS
Boston Logan Intl
Frontier
   
2 STOPS
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
BOS
Boston Logan Intl
22 Mar - 31 Mar
$139pp
BOS
Boston Logan Intl
Frontier
   
2 STOPS
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
BOS
Boston Logan Intl

Boston to San Diego 2021 flight deals

4 May - 12 May
$68pp
BOS
Boston Logan Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl
4 May - 12 May
$70pp
BOS
Boston Logan Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl
4 May - 12 May
$78pp
BOS
Boston Logan Intl
Spirit Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
BOS
Boston Logan Intl

Non-stop flights to San Diego from Boston

22 Mar - 31 Mar
$243pp
BOS
Boston Logan Intl
Alaska Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Alaska Airlines
Non-Stop
BOS
Boston Logan Intl
26 Mar - 31 Mar
$263pp
BOS
Boston Logan Intl
JetBlue
Non-Stop
SAN
San Diego
SAN
San Diego
JetBlue
Non-Stop
BOS
Boston Logan Intl
20 Mar - 23 Mar
$265pp
BOS
Boston Logan Intl
Multiple Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Alaska Airlines
Non-Stop
BOS
Boston Logan Intl

Last minute flights from Boston to San Diego

7 Mar - 10 Mar
$146pp
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SAN
San Diego
SAN
San Diego
Frontier
   
2 STOPS
BOS
Boston Logan Intl
2 Mar - 31 Mar
$151pp
BOS
Boston Logan Intl
Multiple Airlines
     
3 STOPS
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
BOS
Boston Logan Intl
2 Mar - 31 Mar
$153pp
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
BOS
Boston Logan Intl

One-way flights to San Diego from Boston

8:20 am - 7:29 pm
Multiple Airlines
2 Stops
38h 09m
BOS - SAN
Multiple Airlines
$79
Gotogate
10:29 am - 3:24 pm
Spirit Airlines
1 Stop
7h 55m
BOS - SAN
Spirit Airlines
$81
CheapOair
11:07 am - 4:24 pm
Frontier
2 Stops
56h 17m
BOS - SAN
Frontier
$82
Kiwi.com

Related info for your journey

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.

What safety measures are being taken by airlines flying from Boston Logan Intl to San Diego to control the spread of COVID-19?

Alaska Airlines and Delta are some of the many airlines that have implemented additional safety measures to control the spread of COVID-19. New policies for travelers booking flights from Boston Logan Intl to San Diego include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Boston Logan Intl to San Diego have flexible cancellations due to COVID-19?

Some of our airline partners flying from Boston Logan Intl to San Diego have new flexible policies in place due to COVID-19. JetBlue, American Airlines, and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like JetBlue with this kind of flexibility.

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 $68, but on average you can expect to pay $95.

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 $316.

Are there last-minute flights available from Boston to San Diego for under $200?

There are currently 20+ open flights from Boston to San Diego within the next 7 days for less than $200.

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.

Does it rain more in Boston or San Diego?

Expected rainfall in Boston is same as 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.

How long is the flight from Boston to San Diego?

A quick flight from Boston to San Diego can take about 7h 55m. Spirit Airlines provides one of the quickest options available for as low as $68.

What is the cheapest airline to fly from Boston to San Diego round-trip?

Currently priced at $68, Spirit Airlines will fly you from Boston to San Diego and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. You may be able to fly from Boston to San Diego for 77% less than the average price by searching for this airline.

What are the cheapest airlines to fly from Boston to San Diego one-way?

To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $35. Spirit Airlines is not the only option available. At the moment, Frontier is another option, for $68.

Alternative routes for Boston to San Diego

Destination information for San Diego

Average temperature for February in San Diego
66.2 °F
Avg rainfall for February in San Diego
2.8 ″

Airports servicing Boston

Airports servicing San Diego

Top 8 airlines flying from Boston to San Diego

Airline Cheapest Average Flexibility On-time COVID-19 safety
Spirit Airlines
$93 $225 No cancel fee 65%
Frontier
$117 $227 No cancel fee 62%
Sun Country Air
$148 $232 No cancel fee 83%
United Airlines
$127 $273 No cancel fee 69%
Delta
$132 $292 No cancel fee N/A
American Airlines
$130 $297 No cancel fee 71%
Alaska Airlines
$138 $355 No cancel fee 75%
JetBlue
$188 $432 No cancel fee 62%

Hourly flight availability from Boston to San Diego

Morning 6 AM to noon 100% of BOS to SAN departures
Early morning Midnight to 6 AM 0% of BOS to SAN departures
Afternoon Noon to 6 PM 0% 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
2 daily flights
Monday
0 flights
Tuesday
2 daily flights
Wednesday
0 flights
Thursday
0 flights
Friday
2 daily flights
Saturday
0 flights
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