For a smooth departure from IAD, use the Aerotrain to quickly reach distant gates. Allow extra time for security queues.
Round-trip from | $169 (Southwest) |
---|---|
One-way from | $72 (Southwest) |
Popular in | December |
Cheapest in | September |
Average price | $354 |
Good round-trip deal | $297 or less |
Good one-way deal | $158 or less |
Fly from
Fly to
Route
Depart
Return
Price
BaltimoreSan Diego
BWI - SAN
BWISAN
Baltimore/Washington
Wed 11/12
12:45 pm-5:05 pm
1 stop7h 20m
San Diego
Sat 11/15
7:45 am-7:20 pm
2 stops8h 35m
BaltimoreSan Diego
BWI - SAN
BWISAN
Baltimore/Washington
Mon 11/10
3:55 pm-8:15 pm
1 stop7h 20m
San Diego
Wed 11/12
8:05 pm-5:45 am
1 stop6h 40m
BaltimoreSan Diego
BWI - SAN
BWISAN
Baltimore/Washington
Wed 12/24
6:15 am-11:45 am
1 stop8h 30m
San Diego
Mon 1/5
12:50 pm-11:00 pm
1 stop7h 10m
BaltimoreSan Diego
BWI - SAN
BWISAN
Baltimore/Washington
Thu 11/6
7:15 am-11:55 am
1 stop7h 40m
San Diego
Tue 11/11
6:40 am-6:10 pm
2 stops8h 30m
BaltimoreSan Diego
BWI - SAN
BWISAN
Baltimore/Washington
Sun 11/9
6:35 pm-11:20 pm
1 stop7h 45m
San Diego
Wed 11/12
9:45 pm-5:35 am
Nonstop4h 50m
BaltimoreSan Diego
BWI - SAN
BWISAN
Baltimore/Washington
Wed 1/7
6:20 am-9:25 am
Nonstop6h 05m
San Diego
Sun 1/11
2:45 pm-10:30 pm
Nonstop4h 45m
BaltimoreSan Diego
BWI - SAN
BWISAN
Baltimore/Washington
Wed 11/5
3:50 pm-9:05 pm
1 stop8h 15m
San Diego
Tue 11/11
6:40 am-6:10 pm
2 stops8h 30m
BaltimoreSan Diego
BWI - SAN
BWISAN
Baltimore/Washington
Sat 11/1
6:05 pm-8:35 pm
Nonstop5h 30m
San Diego
Sun 11/9
6:30 am-4:10 pm
1 stop6h 40m
BaltimoreSan Diego
BWI - SAN
BWISAN
Baltimore/Washington
Mon 1/5
12:30 pm-6:10 pm
2 stops8h 40m
San Diego
Mon 1/5
9:45 pm-5:35 am
Nonstop4h 50m
Washington, D.C.San Diego
IAD - SAN
IADSAN
Washington, D.C. Dulles Intl
Mon 11/3
9:00 am-11:38 am
Nonstop5h 38m
San Diego
Sat 11/8
11:20 am-9:21 pm
1 stop7h 01m
The price you pay for your flight from Washington, D.C. to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 61 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to San Diego (average of $286). Flying from Washington, D.C. to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
One of the essential ways to save on airfare from Washington, D.C. to San Diego is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 30% on airfare.
Travelers seeking maximum savings on their Washington, D.C. to San Diego flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from WAS to SAN are scheduled on a Wednesday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).
Denver (DEN) – chosen by Cheapflights users on 88% of 1-stop itineraries from Washington, D.C. to San Diego on Cheapflights.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $183.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 7h 05m.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 0h 52m.
Entertainment
Overall
Boarding
Crew
Food
Comfort
Reviews
Hannah,Aug 2025
SFO - SAN
Entertainment
Overall
Boarding
Crew
Food
Comfort
Reviews
Hannah,Aug 2025
SFO - SAN
Entertainment
Overall
Boarding
Crew
Food
Comfort
Reviews
Hannah,Aug 2025
SFO - SAN
Entertainment
Overall
Boarding
Crew
Food
Comfort
Reviews
Hannah,Aug 2025
SFO - SAN
Entertainment
Overall
Boarding
Crew
Food
Comfort
Reviews
Hannah,Aug 2025
SFO - SAN
Entertainment
Overall
Boarding
Crew
Food
Comfort
Reviews
Hannah,Aug 2025
SFO - SAN
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$130 | Average$271 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$157 | Average$299 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$158 | Average$358 | FlexibilityNo cancel fee | On-time85% | |
Cheapest$211 | Average$355 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$222 | Average$468 | FlexibilityNo cancel fee | On-time63% | |
Cheapest$256 | Average$396 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$256 | Average$442 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$257 | Average$454 | FlexibilityNo cancel fee | On-time69% |