$140 Find Cheap Flights from Boston to San Diego - Compare and Save

These are the earliest and latest flight times available from Boston to San Diego:

• Earliest: departs at 6:00 am and lands at 12:24 pm
• Latest: departs at 6:24 pm and lands at 12:48 am.

The flight takes about 6h 24m.

Four cabin classes are available on flights from Boston to San Diego:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

A nonstop flight from Boston to San Diego takes 6h 24m, covering 2,581 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Boston to San Diego range from $304 to $511, with an average of $388 over the past 12 months. Anything below $304 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 50% above the $388 route average. Book 8 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $312 round-trip via Charlotte Douglas (CLT), compared to $385 for nonstop.

JetBlue is slightly above the route average for timely arrivals, while Alaska Airlines has a lower on-time arrival rate. On-time arrival rates on Boston to San Diego flights are:

• JetBlue: 85% on time
• Alaska Airlines: 84% on time
• Delta: 78% on time

Overall, flights on this route are punctual 81% of the time on average.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Airbus A318/A319/A320/A321 family is used most often on this route, operated mainly by JetBlue. Other aircraft seen on the route include Airbus A321neo variants.

Morning is the busiest departure period on Boston to San Diego flights, with 51% of flights leaving in that window. Evening departures account for 33%, afternoon flights for 16%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $250 to $1,640. That means the highest observed fare was about 7x higher than the lowest one.

Three airlines offer in-flight Wi-Fi on Boston to San Diego flights:

• JetBlue
• Alaska Airlines
• Delta

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from Boston to San Diego are currently lower than usual. Average one-way flight prices are about $151, which is 40% below the typical average for this route.

San Diego Airport (SAN) hosts 5 major car rental companies, with daily rates starting from around $14 for economy cars. Top options include:

• Dollar
• Payless
• Europcar
• Thrifty
• Fox

Flights from Boston to San Diego usually depart from Boston Logan Intl (BOS) and arrive at San Diego (SAN).

Morning flights have the fewest delays on this route, while evening departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Boston to San Diego route, 19% of flights were delayed in the past 3 months, with delays averaging 2h 36m.

One-stop flights from Boston to San Diego most commonly connect through:

• Chicago O'Hare Intl (ORD) - 19% of one-stop connections
• Phoenix Sky Harbor Intl (PHX) - 16% of one-stop connections
• Denver Intl (DEN) - 13% of one-stop connections
• Philadelphia (PHL) - 12% of one-stop connections

Yes. Flexible dates can save you up to 26% on flights from Boston to San Diego. Wednesday is the cheapest departure day at $348 round-trip on average, while Sunday is the most expensive at $465, a difference of $117.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

4 airlines operate flights between Boston and San Diego. The airlines offering nonstop flights on this route include:

• JetBlue
• Alaska Airlines
• Delta
• Southwest

Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time at 7h 52m, compared with 8h 08m via Phoenix Sky Harbor Intl (PHX) and 8h 09m via Lambert-St Louis (STL).

San Diego is 3 hours behind Boston (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in San Diego are Gaslamp Quarter, San Diego Convention Center and SeaWorld San Diego. These are among the most viewed places in San Diego on KAYAK.

Among airlines operating Boston to San Diego flights:

• JetBlue: offers extra legroom; offers free seat selection
• Alaska Airlines: offers extra legroom; offers free seat selection
• Delta: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection
• American Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• JetBlue: a cabin bag and a checked bag in Economy Class
• Alaska Airlines: a cabin bag and a checked bag in Economy Class
• Delta: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

A quicker option than renting a car or waiting for a taxi is Metropolitan Transit System Route 992. It runs from San Diego International Airport (SAN) to Santa Fe Depot train station in downtown San Diego.

At SAN, information desks staffed by Volunteer Airport Ambassadors are in the Baggage Claims of Terminals 1 and 2.

At BOS, Our Lady of the Airways Chapel, an interfaith chapel, is on the Arrivals Level of Terminal C. At SAN, the Meditation room is on the Airside of Terminal 2.

Yes, Boston Logan International Airport (BOS) has short-term and long-term parking in its Central Parking Garage. The garage is accessible from all terminals via pedestrian bridges on Level 4.

Boston Logan International Airport (BOS) and San Diego International Airport (SAN) provide nursing rooms where mothers can nurse their children and pump milk. At SAN, there are lactation rooms on Level 1 by baggage claim units 3 and 8; on Level 2 across from Gate 118, across from the Dining Hall/near Gate 114 and near Gate 108; and in Terminal 2 West on Level 2 near Gates 34–35.

Be Relax Spa is near Gate 26 in Terminal 2 East at San Diego International Airport (SAN). The spa offers massages and other spa treatments from experienced staff.