Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Boston to San Diego
The cheapest flights right now
Boston – San Diego
Outbound – Nov 12, 2026
direct
6h 31m Return – Nov 22, 2026
direct
5h 41m $290
today
Boston – San Diego
Outbound – Nov 13, 2026
direct
6h 31m Return – Nov 22, 2026
direct
5h 41m $289
today
Boston – San Diego
Outbound – Nov 12, 2026
direct
6h 23m Return – Nov 22, 2026
direct
5h 41m $338
today
Boston – San Diego
Outbound – Nov 12, 2026
direct
6h 26m Return – Nov 22, 2026
direct
5h 41m $391
today
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$132
Average price of a round trip
$252
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
6h7
A flight from Boston to San Diego takes on average 6h7.
Best time
February
According to user searches, the ideal month to go to San Diego is February.
Tips for finding a cheap flight from Boston to San Diego
Check out our tips for booking your flight to San Diego (USA) from Boston (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is September, with an average flight ticket price of $246 (calculation over the last two years). The most touristic season corresponds to the months of October, November and September.
For the cheapest flights, it is advisable to buy your ticket at least 43 days before the departure date.
The airline offering the cheapest flight tickets is Alaska Airlines. A ticket from the airline Alaska Airlines to San Diego costs on average $252.
The airlines that offer the most flights are Alaska Airlines, JetBlue and Southwest Airlines.
Price of flight tickets from Boston to San Diego
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $132 to $592
- The average price of a flight ticket is about $252
- Prices are lowest for stays in the month of September
- The month in which booking a ticket is cheaper is: October
info departure city :
Boston, USA
airport :
Boston-Logan International Airport (BOS)
local time :
Boston is a city in the country USA, the time zone is [[timezone]]. In Boston, it is currently {fromLocalTime}, the temperature is on average 14°C, with a minimum of 10°C and a maximum of 17°C.
The city of Boston has 1 airport(s): Boston-Logan
destination info :
San Diego, USA
airports :
Lindbergh Field (SAN)
Montgomery Field (MYF)
NAS (NZY)
local time :
San Diego is in the country USA, the time zone is [[timezone]]. In San Diego, it is currently {toLocalTime}, the temperature is on average 25°C, with a minimum of 22°C and a maximum of 29°C.
The city of San Diego has 3 airport(s): Lindbergh Field, Montgomery Field and NAS
Useful info about San Diego
What is the least touristic period to go to San Diego?
If you want to visit San Diego during the least touristic period, choose the month of February.
What is the most popular time to travel to San Diego?
In San Diego, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Boston to San Diego?
According to our data, it is recommended to book your flight 43 days before your departure. If you book your flight ticket 7 weeks before your departure, you may find a price below average. You can also choose morning flights that are 100% cheaper than afternoon and evening flights. The cheapest day to book a flight from Boston to San Diego is Saturday.
What are the arrival and destination airports when traveling between Boston and San Diego?
When you leave, you can leave from Boston-Logan, and you will arrive at Lindbergh Field.
How to reach Boston airport from the city centre?
This information is not available at this time.
Are there other means of transportation to go from Boston to San Diego?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Boston and San Diego?
In summer, the average temperature is 21°C in San Diego and 22°C in Boston. The average rainfall in summer is 4 mm in San Diego and 106 mm in Boston. In summer, it is warmer in Boston and it rains less in San Diego. In winter, it is colder in San Diego and it rains more in Boston.
