Cheap flights from Boston to San Diego

Flights starting at $212. Choose between Delta Air Lines, United Airlines, or JetBlue Airways to find the best price.

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Travelers usually depart from Logan International, Boston South Station, Boston, MA - Back Bay Station, Boston, MA - LAZ parking lot, or Boston, MA - North Station when they travel from Boston to San Diego. Book your trip to arrive at San Diego International, San Diego, CA - Old Town, San Diego, CA Bus Station, San Diego, CA - La Jolla, or San Diego, CA - Santa Fe. The distance between Boston and San Diego is 4160 km. The most popular airlines for this route are Delta Air Lines, United Airlines, JetBlue Airways, Spirit Airlines, and Frontier Airlines. Boston and San Diego have 401 direct flights per week.

Weekly direct flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Direct flights3333133
Fly direct with

Alaska Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

JetBlue Airways on Mondays, Tuesdays, Wednesdays, Thursdays, Saturdays, and Sundays.

Check-in for a flight from Boston to San Diego

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
JetBlue AirwaysJBUB6YesOpens 24 days before flight
Closes 2 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Learn more about COVID-19 restrictions in United States in our dedicated Stories article.

Frequently asked questions

How long does it take to travel from Boston to San Diego?
A one-way nonstop (direct) flight between Boston and San Diego takes around 6.4 hours.
What is the flight distance between Boston and San Diego?
The flight distance between Boston and San Diego is 4160 km.
What airlines offer nonstop (direct) flights between Boston and San Diego?
Several carriers operate flights between Boston and San Diego. Airlines offering nonstop (direct) flights include Alaska Airlines, JetBlue Airways.
What are the most popular routes to and from Boston?
Travelers frequently search for route combinations, such as Boston and London, Paris, Orlando, Barcelona, Rome, Madrid, Dublin, Athens, Lisbon, Denver, Prague, Miami, Vienna, Amsterdam, Milan, Munich, Fort Lauderdale, Berlin, Istanbul, Raleigh.
What are the most popular routes to and from San Diego?
Travelers frequently search for route combinations, such as San Diego and Denver, Las Vegas, Austin, Cincinnati, Philadelphia, New York, Phoenix, Charlotte, Washington, D.C., Atlanta, Raleigh, Chicago, Orlando, San Antonio, Detroit, Dallas, St. Louis, Cleveland, Salt Lake City, Minneapolis.
What airports are near Boston?
The main airport in Boston is Logan International. It is also served by Logan International, Bradley International, Rhode Island T. F. Green Int'l Airport, Albany International, Portland International Jetport, Manchester–Boston Regional, Portsmouth International Airport at Pease, Worcester Regional, Barnstable Municipal, Lebanon Municipal.
What airports are near San Diego?
The main airport in San Diego is San Diego International. It is also served by Ontario International, John Wayne, Tijuana International, Hollywood Burbank, Mexicali International, Palm Springs International, Imperial County, Long Beach, Yuma International, Hawthorne Municipal.
What buses and trains depart from Boston?
A number of bus and train companies depart from Boston, including Peter Pan Bus, Amtrak train.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Boston and San Diego?
Yes, it's possible to combine different modes of transport between Boston and San Diego thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Boston and San Diego can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.
What is Virtual Interlining and how do I use it?
Which airlines fly between Boston and San Diego?
When's the best time to travel between Boston and San Diego?
What flights operate between Boston and San Diego?
How many airports are there near Boston?
How many airports are there near San Diego?
Is it possible to reach Boston by bus or train?
What time do nonstop (direct) flights between Boston and San Diego depart?
What time do nonstop (direct) flights between Boston and San Diego arrive?
What time do flights between Boston and San Diego depart?
What time do flights between Boston and San Diego arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

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