Flights from Boston to San Diego

Our cheapest offers for flights from Boston to San Diego

Here you can compare cheap flights from Boston (BOS) to San Diego (SAN) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to San Diego. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Boston
San Diego
Outbound
11/09/25
direct
B60919
06h 39min
Return
12/07/25
direct
B62120
05h 33min
JetBlue Airways ?
$242
Boston
San Diego
Outbound
11/09/25
direct
B60919
06h 39min
Return
12/07/25
direct
B62120
05h 33min
JetBlue Airways ?
$251
Boston
San Diego
Outbound
11/09/25
direct
AS0389
06h 39min
Return
12/07/25
1 Stopover (SEA)
AS1368, AS0460
11h 25min
Alaska Airlines
$296
Boston
San Diego
Outbound
11/09/25
direct
HA4821
06h 39min
Return
12/07/25
1 Stopover (SEA)
HA6712, HA6627
11h 25min
Hawaiian Airlines
$296
Boston
San Diego
Outbound
11/09/25
1 Stopover (DEN)
UA0647, UA1302
10h 35min
Return
12/07/25
1 Stopover (ORD)
UA2677, UA1989
07h 53min
United Airlines ?
$349
Boston
San Diego
Outbound
11/09/25
direct
AS0389
06h 39min
Return
12/07/25
2 Stopovers (DEN, MSP)
F92818, SY0658, SY0251
25h 16min
Alaska Airlines ?
$352
Boston
San Diego
Outbound
11/09/25
1 Stopover (MSP)
SY0254, SY0407
09h 19min
Return
12/07/25
1 Stopover (MSP)
SY0408, SY0251
13h 34min
Sun Country Airlines
$375
Boston
San Diego
Outbound
11/09/25
1 Stopover (MSP)
SY0254, SY0407
09h 19min
Return
12/07/25
1 Stopover (MSP)
SY0408, SY0251
13h 34min
Sun Country Airlines
$390
Boston
San Diego
Outbound
02/13/26
direct
AS0389
06h 24min
Return
02/26/26
direct
AS0390
05h 54min
Alaska Airlines ?
$433
Boston
San Diego
Outbound
02/13/26
1 Stopover (JFK)
B60817, AS0025
09h 46min
Return
02/26/26
direct
AS0390
05h 54min
JetBlue Airways, Alaska Airlines ?
$433
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Boston to San Diego

Favorite airline: Sun Country Airlines
Most travelers looking for flights on the route from Boston to San Diego decide to book flights with Sun Country Airlines.
Sun Country Airlines
33 %
Spirit Airlines
19 %
United Airlines
15 %
Stopover flights are the cheapest connection
Flights with a stopover are on average $346.00 cheaper than direct flights.
non stop flight
1 stop
2 stops
06h 24min
09h 25min
20h 19min
$ 651
$ 356
$ 305
Favourite connection: via Minneapolis
The most popular route is via Minneapolis and is booked by 75 % of all travelers.
Route
bookings
1 stopover Minneapolis - St. Paul International Airport, MN
08h 32min, from $ 517
75 %
2 stopovers Hartsfield-Jackson Atlanta International Airport, GA Las Vegas - McCarran International Airport, NV
22h 52min, from $ 349
17 %
2 stopovers Fort Lauderdale-Hollywood International Airport, FL Las Vegas - McCarran International Airport, NV
20h 19min, from $ 305
8 %

Important flight information

Flight information: Boston - San Diego

Roundtrip from $ 241,97
Flight duration min. 06:37 / max. 10:15
Return flight duration min. 05:14/ max. 07:45
Distance 4160 km
Flights per week 30
Departure airport Airport Boston Logan International Airport, MA (BOS)
Arrival airport Airport San Diego - Lindberg Field International, CA (SAN)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to San Diego
Flight destinations with a similar price
Flight destinations with a similar price