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Cheap flights Washington — San Diego

Washington (WAS, US) San Diego (SAN, US)
from $121 3 653 km ~4h 48m 12 flights found 3 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: $121 on 15.12.2026
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
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December 2026
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January 2027
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Tu
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Prices found for 5 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
15 Dec 2026, Tue
Frontier Airlines F9 689
02:00
DCA Ronald Reagan National Airport
08:49
SAN San Diego International Airport
6h 49m 1 stop
Авиасейлс
$121
View this ticket
13 Jan 2027, Wed
Frontier Airlines F9 689
02:00
DCA Ronald Reagan National Airport
08:48
SAN San Diego International Airport
6h 48m 1 stop
Trip.com
$126
View this ticket
12 Jan 2027, Tue
Southwest Airlines WN 361
23:40
DCA Ronald Reagan National Airport
07:25
SAN San Diego International Airport
7h 45m Direct
Biletix
$188
View this ticket
15 Nov 2026, Sun
Frontier Airlines F9 689
02:00
DCA Ronald Reagan National Airport
08:38
SAN San Diego International Airport
6h 38m 1 stop
Farera
$203
View this ticket
14 Dec 2026, Mon
Southwest Airlines WN 862
16:10
BWI Baltimore/Wash International Thurgood Marshall Airport
21:50
SAN San Diego International Airport
5h 40m Direct
City.Travel
$208
View this ticket
15 Nov 2026, Sun
Alaska Airlines AS 506
02:46
IAD Washington Dulles International Airport
08:27
SAN San Diego International Airport
5h 41m Direct
Wowtickets
$323
View this ticket
Route characteristics
Distance
3 653 km
Flight time
4h 48m
Time difference
-3h
Minimum price
from $121 (15.12.2026)
Average price
$169
Maximum price
$208
Departures per week
1
Cheapest day
Tuesday
Departure airports (3)
BWI Baltimore/Wash International Thurgood Marshall Airport DCA Ronald Reagan National Airport IAD Washington Dulles International Airport
Arrival airports (1)
SAN San Diego International Airport
Airlines (3)
F9 Frontier Airlines AS Alaska Airlines WN Southwest Airlines
Agencies (8)
Авиасейлс Trip.com Kiwi.com Biletix Farera City.Travel Tickets Wowtickets
Prices by day of week
Monday
$208
avg $208
Tuesday
$121
avg $155
Cheapest
Wednesday
$126
avg $126
Sunday
$203
avg $263
Price trend by month
November 2026
from $203
avg $263
2 flights
December 2026
from $121
avg $165
2 flights
January 2027
from $126
avg $157
2 flights
Airlines — cheapest prices 3
Frontier Airlines
Frontier Airlines
Low-cost 5 flights · 5 days
$121
Alaska Airlines
Alaska Airlines
5 flights · 5 days
$157
Southwest Airlines
Southwest Airlines
Low-cost 2 flights · 2 days
$188
Where to buy tickets 8
Авиасейлс
1 tickets · 1 days
from $121
Trip.com
1 tickets · 1 days
from $126
Kiwi.com
2 tickets · 2 days
from $157
Biletix
1 tickets · 1 days
from $188
Farera
2 tickets · 2 days
from $203
City.Travel
1 tickets · 1 days
from $208
Tickets
2 tickets · 2 days
from $311
Wowtickets
2 tickets · 2 days
from $323
Airports

From — Washington (3)

  • BWI Baltimore/Wash International Thurgood Marshall Airport
  • DCA Ronald Reagan National Airport
  • IAD Washington Dulles International Airport

To — San Diego (1)

  • SAN San Diego International Airport
Other destinations from Washington
Nashville
US
Dallas
US · Hub
Los Angeles
US · Hub
Miami
US · Hub
Raleigh
US
St Louis
US
Cincinnati
US
Seattle
US
Boston
US
Atlanta
US · Hub
San Juan
PR
Tampa
US
Frequently asked questions about the route Washington — San Diego
How long is the flight from Washington to San Diego?
Approximate flight time — 4h 48m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Washington to San Diego?
The straight-line distance — 3 653 km.
How much do flights from Washington to San Diego cost?
The minimum price over 3 months — from $121 on 15.12.2026.
What is the average ticket price?
The average price — $169. Range: $121 — $208.
What is the time difference between Washington and San Diego?
The difference — -3h.
From which airports does Washington operate flights?
From Washington: BWI (Baltimore/Wash International Thurgood Marshall Airport), DCA (Ronald Reagan National Airport), IAD (Washington Dulles 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 3 airlines: Frontier Airlines, Alaska Airlines, Southwest Airlines.
Are there direct flights?
Yes, there are direct flights. Minimum direct price — from $188. 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 Washington — San Diego

Flights Washington — San Diego is a popular route. The straight-line distance is 3 653 km. Flight time 4h 48m. Time difference -3h.

From Washington (WAS) flights depart from 3 airports: BWI, DCA, IAD. To San Diego (SAN) — 1 arrival airport: SAN.

3 airlines operate on this route: Frontier Airlines, Alaska Airlines, Southwest Airlines.

The minimum price for the next 3 months — from $121 (15.12.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $169, ranging from $121 to $208. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Tuesday.

Other destinations in United States from Washington
Nashville
US
Dallas
US
Los Angeles
US
Miami
US
Raleigh
US
St Louis
US
Seattle
US
Boston
US

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