Cheap flights from Boston to San Diego from $107
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to San Diego departing on 9/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Boston to San Diego
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Spirit Airlines flights from Boston to San Diego
Our best Spirit Airlines deals on Boston to San Diego flight tickets
American Airlines flights from Boston to San Diego
Our best American Airlines deals on Boston to San Diego flight tickets
See travel insights to San Diego from
How to get the cheapest flight ticket from Boston to San Diego
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to San Diego?
If you are unable to visit San Diego during the month of January, then departing from Boston during the month May is also very affordable. Most momondo users find prices during this month for around $349.
What is the cheapest day to depart on your flight to San Diego?
The cheapest day to depart from Boston to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $347. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $438. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.
What is the cheapest time of day to depart on your flight to San Diego?
The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $186. Flights in the morning are often more expensive with an average ticket price of $392.
What is the cheapest Boston Logan Intl to San Diego flight route?
Fly from Boston Logan Intl to San Diego for the best Boston Logan Intl - San Diego flight prices
How far in advance should I book a flight to San Diego?
You are more likely to see cheaper flights to San Diego from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $385 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Boston for as low as $331 on momondo.
What cabin class options are available on Boston Logan Intl to San Diego flights?
There are 4 cabin classes available to choose from on Boston Logan Intl to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Boston Logan Intl to San Diego?
Spirit Airlines, JetBlue, and Hawaiian Airlines are the most popular carriers operating from Boston Logan Intl to San Diego
What airlines fly to San Diego?
JetBlue, American Airlines and Delta are the top three most popular airlines that fly to San Diego from Boston according to our data. JetBlue is the first choice among our users, with 37% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 11 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.
How many flights depart from Boston to San Diego on average per day?
As of July 2025, 13 flights take off from Boston and land in San Diego each day. The most common flight departure time for this route is 5:00PM, with 63% of daily flights taking off in the afternoon.
How many flights depart from Boston to San Diego on average per week?
As of July 2025, there are 94 flights per week flying from Boston to San Diego. The most common day of the week flights depart is Wed, with 22% of flights taking off on this day.
When to book flights from Boston to San Diego
Cheap Boston to San Diego (BOS to SAN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Boston to San Diego
How far is Boston Logan Intl to San Diego by plane?
A flight from Boston Logan Intl to San Diego will travel around 2576.8 mi. In terms of flight time, this usually takes a little over 6h 05m.
When did momondo last update prices for flights from Boston Logan Intl Airport to San Diego Airport?
Prices for flights from Boston Logan Intl Airport to San Diego Airport are updated daily.
How many operators does momondo search for flights from Boston Logan Intl Airport to San Diego Airport?
As of July 2025, there are 10 operators available to choose from for flights from Boston Logan Intl Airport to San Diego Airport.
How old do you have to be to fly from Boston Logan Intl Airport to San Diego Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Boston to San Diego?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Boston to San Diego is Boeing 737-800 Passenger/BBJ2 (winglets) (19.98% of total bookings). The next most popular plane models are Boeing 737 (18.72%), Airbus A321neo (18.06%), and Airbus A318/A319/A320/A321 (17.88%).
What is the most popular airline from Boston to San Diego?
momondo data reveals that the most frequently booked airline on the route from Boston to San Diego is JetBlue, representing 47% of all bookings. The subsequent popular airlines are Delta at 23%, Alaska Airlines at 11%, and American Airlines at 10%.
Best airlines flying from Boston to San Diego
Compare and see reviews for airlines that fly from Boston to San Diego with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $84 | Free Cancellation | Rating 5.9 3,286 reviews | |||
| PriceFrom $99 | Free Cancellation | Rating 6.3 8,086 reviews | |||
| PriceFrom $138 | Free Cancellation | Rating 7.8 2,545 reviews | |||
| PriceFrom $142 | Free Cancellation | Rating 6.9 339 reviews | |||
| PriceFrom $153 | Free Cancellation | Rating 8.0 7,982 reviews | |||
| PriceFrom $190 | Free Cancellation | Rating 7.3 2,916 reviews | |||
| PriceFrom $237 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $247 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $252 | Free Cancellation | Rating 7.4 8,861 reviews | |||
| PriceFrom $309 | Free Cancellation | Rating 8.0 4,266 reviews |
Delta Flights From Boston to San Diego
Across 3 Delta flights from Boston to San Diego this week, the average price was $370, with the best Delta deals starting from $153 round-trip. 7,983 users have rated Delta on momondo, with an average score of 8.0/10.
Alaska Airlines Flights From Boston to San Diego
$237 is the best Alaska Airlines flight deal from Boston to San Diego found on momondo over the last 72 hours. The average Alaska Airlines ticket price found was closer to $441, however, with flight time and availability significantly affecting the price. Alaska Airlines (8.0/10 from 10,000 user reviews) flies into San Diego from Boston 11 times in an average week so prices can vary.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Boston to San Diego?
It is quick and easy to find Boston to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.
Can I find flights from Boston to San Diego with flexible booking policies on momondo?
momondo does allow users to show only those flights to San Diego from Boston which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Boston to San Diego?
momondo provides multiple filters to help you find the best flight to San Diego from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Boston to San Diego right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Boston to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.