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Cheap flights Boston — San Diego

Boston (BOS, US) San Diego (SAN, US)
from $173 4 150 km ~5h 23m 9 flights found 4 airlines cheapest on Tuesday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $173 on 16.11.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
Mo
Tu
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Th
Fr
Sa
Su
December 2026
Mo
Tu
We
Th
Fr
Sa
Su
January 2027
Mo
Tu
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Prices found for 12 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
22 Dec 2026, Tue
Alaska Airlines AS 311
14:00
BOS Logan International Airport
00:08
SAN San Diego International Airport
10h 8m 2 stops
Kiwi.com
$208
View this ticket
22 Dec 2026, Tue
Alaska Airlines AS 256
15:40
BOS Logan International Airport
22:17
SAN San Diego International Airport
6h 37m Direct
Cheapfaremart
$213
View this ticket
24 Nov 2026, Tue
American Airlines AA 2527
14:00
BOS Logan International Airport
22:06
SAN San Diego International Airport
8h 6m 1 stop
Trip.com
$228
View this ticket
24 Nov 2026, Tue
Southwest Airlines WN 2460
20:35
BOS Logan International Airport
02:45
SAN San Diego International Airport
6h 10m Direct
Biletix
$235
View this ticket
26 Nov 2026, Thu
Southwest Airlines WN 816
06:25
BOS Logan International Airport
13:50
SAN San Diego International Airport
7h 25m 1 stop
Biletix
$239
View this ticket
26 Nov 2026, Thu
jetBlue B6 19
00:10
BOS Logan International Airport
06:36
SAN San Diego International Airport
6h 26m Direct
Clickavia
$258
View this ticket
Route characteristics
Distance
4 150 km
Flight time
5h 23m
Time difference
-3h
Minimum price
from $173 (16.11.2026)
Average price
$192
Maximum price
$239
Departures per week
1
Cheapest day
Tuesday
Departure airports (1)
BOS Logan International Airport
Arrival airports (1)
SAN San Diego International Airport
Airlines (4)
WN Southwest Airlines AS Alaska Airlines AA American Airlines B6 jetBlue
Agencies (6)
Farera Clickavia Kiwi.com Cheapfaremart Trip.com Biletix
Prices by day of week
Tuesday
$208
avg $221
Cheapest
Thursday
$239
avg $249
Price trend by month
November 2026
from $228
avg $240
4 flights
December 2026
from $208
avg $211
2 flights
Airlines — cheapest prices 4
Southwest Airlines
Southwest Airlines
Low-cost 4 flights · 4 days
$119
Alaska Airlines
Alaska Airlines
3 flights · 2 days
$207
American Airlines
American Airlines
1 flights · 1 days
$228
jetBlue
jetBlue
Low-cost 1 flights · 1 days
$258
Where to buy tickets 6
Farera
1 tickets · 1 days
from $119
Clickavia
3 tickets · 2 days
from $195
Kiwi.com
1 tickets · 1 days
from $208
Cheapfaremart
1 tickets · 1 days
from $213
Trip.com
1 tickets · 1 days
from $228
Biletix
2 tickets · 2 days
from $235
Airports

From — Boston (1)

  • BOS Logan International Airport

To — San Diego (1)

  • SAN San Diego International Airport
Other destinations from Boston
Nantucket
US
Albany
US
Augusta
US
Bar Harbor
US
Hyannis
US
Lebanon
US
Martha's Vineyard
US
Provincetown
US
Rockland
US
Rutland
US
Saranac Lake
US
Dallas
US · Hub
Frequently asked questions about the route Boston — San Diego
How long is the flight from Boston to San Diego?
Approximate flight time — 5h 23m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Boston to San Diego?
The straight-line distance — 4 150 km.
How much do flights from Boston to San Diego cost?
The minimum price over 3 months — from $173 on 16.11.2026.
What is the average ticket price?
The average price — $192. Range: $173 — $239.
What is the time difference between Boston and San Diego?
The difference — -3h.
From which airports does Boston operate flights?
From Boston: BOS (Logan International Airport).
To which airports in San Diego do flights arrive?
To San Diego: SAN (San Diego International Airport).
Which airlines fly this route?
This route is served by 4 airlines: Southwest Airlines, Alaska Airlines, American Airlines, jetBlue.
Are there direct flights?
Yes, there are direct flights. Minimum direct price — from $213. Total direct flights found: 3.
Which day of the week is cheapest?
The cheapest day of the week — Tuesday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Boston — San Diego

Flights Boston — San Diego is a popular route. The straight-line distance is 4 150 km. Flight time 5h 23m. Time difference -3h.

From Boston (BOS) flights depart from 1 airport: BOS. To San Diego (SAN) — 1 arrival airport: SAN.

4 airlines operate on this route: Southwest Airlines, Alaska Airlines, American Airlines, jetBlue.

The minimum price for the next 3 months — from $173 (16.11.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $192, ranging from $173 to $239. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Tuesday.

Other destinations in United States from Boston
Nantucket
US
Albany
US
Augusta
US
Bar Harbor
US
Hyannis
US
Lebanon
US
Martha's Vineyard
US
Provincetown
US

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