Boston (BOS) to San Diego (SAN) flights
4 airlines fly nonstop from Boston (BOS) to San Diego (SAN): Alaska Airlines, Delta Air Lines, JetBlue Airways and Southwest Airlines. The two airports are 2,582 miles (4,155 km) apart. Alaska Airlines is in oneworld and Delta Air Lines is in SkyTeam. There are also 48 ways to fly it with one stop, through Detroit, Chicago and Chicago and more.
Airlines flying nonstop from BOS to SAN
- Alaska Airlinesoneworld · bookable with 9 programsWho books it
- Delta Air LinesSkyTeam · bookable with 8 programsWho books it
- JetBlue AirwaysNot in an alliance · bookable with 2 programsWho books it
- Southwest AirlinesNot in an allianceWho books it
Book BOS to SAN with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Aeromexico RewardsBooks Delta Air Lines
- Air France-KLM Flying BlueBooks Delta Air Lines
- Alaska Atmos RewardsBooks Alaska Airlines
- American AAdvantageBooks Alaska Airlines
- British Airways ClubBooks Alaska Airlines
- Cathay Pacific Asia MilesBooks Alaska Airlines
- China Eastern Eastern MilesBooks Delta Air Lines
- Delta SkyMilesBooks Delta Air Lines
- Finnair PlusBooks Alaska Airlines
- Garuda Indonesia GarudaMilesBooks Delta Air Lines
- Iberia ClubBooks Alaska Airlines
- JAL Mileage BankBooks Alaska Airlines
- JetBlue TrueBlueBooks JetBlue Airways
- Korean Air SKYPASSBooks Delta Air Lines
- Qantas Frequent FlyerBooks Alaska Airlines
- Qatar Airways Privilege ClubBooks Alaska Airlines
- SAS EuroBonusBooks Delta Air Lines
- Singapore Airlines KrisFlyerBooks JetBlue Airways
- Virgin Atlantic Flying ClubBooks Delta Air Lines
BOS to SAN with one stop
48 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Detroit (DTW)Delta Air Lines the whole way
- Via Chicago (MDW)Southwest Airlines the whole way
- Via Chicago (ORD)American Airlines and United Airlines the whole way
+1
- Via Kansas City (MCI)Southwest Airlines the whole way
- Via Milwaukee (MKE)Southwest Airlines the whole way+1
- Via Indianapolis (IND)Delta Air Lines, American Airlines and 1 more, then Southwest Airlines
- Via Pittsburgh (PIT)JetBlue Airways and Delta Air Lines, then Southwest Airlines and Breeze Airways
- Via Toronto (YYZ)Air Canada the whole way
- Via Columbus (CMH)Delta Air Lines and American Airlines, then Southwest Airlines
- Via Saint Louis (STL)Southwest Airlines the whole way
- Via Phoenix (PHX)American Airlines the whole way+1
- Via Denver (DEN)United Airlines and Southwest Airlines the whole way+1+1
- Via Cincinnati (CVG)Delta Air Lines and American Airlines, then Breeze Airways
- Via New York (EWR)United Airlines the whole way
- Via New York (JFK)JetBlue Airways and Delta Air Lines the whole way
BOS to SAN: common questions
Which airlines fly nonstop from BOS to SAN?
Alaska Airlines (oneworld), Delta Air Lines (SkyTeam), JetBlue Airways and Southwest Airlines fly nonstop from Boston (BOS) to San Diego (SAN).
How far is Boston from San Diego by plane?
Boston (BOS) and San Diego (SAN) are 2,582 miles (4,155 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book BOS to SAN award flights?
19 programs can book at least one of the nonstop airlines: Aeromexico Rewards, Air France-KLM Flying Blue, Alaska Atmos Rewards, American AAdvantage, British Airways Club, Cathay Pacific Asia Miles, China Eastern Eastern Miles, Delta SkyMiles and 11 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does BOS to SAN cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for BOS to SAN with taxes and fees.
Where can I connect between Boston and San Diego?
The most direct connections are through Detroit (DTW), Chicago (MDW), Chicago (ORD), Kansas City (MCI) and Milwaukee (MKE). On 33 of them the same airline flies both flights, for example Delta Air Lines through Detroit.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.