San Diego

$69+ Cheap flights from Washington to San Diego (SAN)

SEA — SAN
Oct 8 — Oct 151
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Cheap flight deals from Washington to San Diego

Cheapest flights from Washington to San Diego

Fri 12/47:10 am -
Nonstop3h 00m
Mon 12/77:05 pm -
Nonstop2h 59m
Deal found 9/7$97
Tue 10/63:30 pm -
Nonstop2h 25m
Sat 10/104:55 pm -
Nonstop2h 40m
Deal found 9/7$137
Sat 10/312:24 pm -
1 stop4h 35m
Mon 10/58:05 pm -
Nonstop2h 42m
Deal found 9/4$138
Tue 11/1710:34 am -
Nonstop2h 39m
Sat 11/218:37 pm -
Nonstop2h 50m
Deal found 9/3$139
Thu 10/1510:30 am -
Nonstop2h 42m
Sat 10/246:53 am -
Nonstop2h 38m
Deal found 9/4$140
Thu 10/159:08 pm -
Nonstop2h 51m
Sun 10/186:15 am -
Nonstop3h 13m
Deal found 9/6$141
Wed 9/305:55 am -
2 stops5h 50m
Sat 10/34:55 pm -
Nonstop3h 05m
Deal found 9/7$142
Thu 11/123:04 pm -
Nonstop2h 33m
Mon 11/167:00 am -
Nonstop2h 43m
Deal found 9/4$142
Mon 10/269:16 pm -
2 stops36h 55m
Mon 11/28:32 pm -
1 stop14h 27m
Deal found 9/4$143
Thu 10/18:00 am -
Nonstop2h 25m
Thu 10/87:00 pm -
1 stop4h 10m
Deal found 9/3$143
Thu 11/128:48 pm -
Nonstop2h 49m
Sun 11/156:16 am -
Nonstop3h 12m
Deal found 9/7$144
Mon 10/264:54 pm -
Nonstop2h 49m
Mon 11/27:45 pm -
Nonstop3h 12m
Deal found 9/7$145

Find flight deals from Washington to San Diego

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$97
(Alaska Airlines)

One-way from

$69
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$207

Good round-trip deal

$170 or less

Good one-way deal

$98 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-San Diego flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Diego flights.
From Washington to San Diego
One-way flight from Washington to San Diego
High demand for flights, 1% potential price rise
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in September 2026
Price to beat on a round-trip flight from Washington to San Diego.
Price to beat on a one-way flight from Washington to San Diego.

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Washington to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Sat 12/5

5:30 pm-8:07 pm

Nonstop2h 37m

San Diego

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$69

SeattleSan Diego

SEA Seattle/Tacoma Intl - SAN San Diego

SEASAN

Seattle/Tacoma Intl

Tue 9/29

8:30 am-11:25 am

Nonstop2h 55m

San Diego

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$79

SeattleSan Diego

SEA Seattle/Tacoma Intl - SAN San Diego

SEASAN

Seattle/Tacoma Intl

Sat 1/23

7:20 am-10:15 am

Nonstop2h 55m

San Diego

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$79

SeattleSan Diego

SEA Seattle/Tacoma Intl - SAN San Diego

SEASAN

Seattle/Tacoma Intl

Sat 3/6

7:59 pm-10:49 pm

Nonstop2h 50m

San Diego

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$79

SeattleSan Diego

SEA Seattle/Tacoma Intl - SAN San Diego

SEASAN

Seattle/Tacoma Intl

Sun 11/22

6:00 am-8:48 am

Nonstop2h 48m

San Diego

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$79

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Thu 10/22

5:30 am-10:35 am

1 stop5h 05m

San Diego

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$79

SeattleSan Diego

SEA Seattle/Tacoma Intl - SAN San Diego

SEASAN

Seattle/Tacoma Intl

Sat 10/10

7:59 pm-10:51 pm

Nonstop2h 52m

San Diego

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$79

SeattleSan Diego

SEA Seattle/Tacoma Intl - SAN San Diego

SEASAN

Seattle/Tacoma Intl

Sun 10/25

7:04 am-10:06 am

Nonstop3h 02m

San Diego

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$79

PortlandSan Diego

PDX Portland - SAN San Diego

PDXSAN

Portland

Mon 12/7

7:20 am-1:05 pm

1 stop5h 45m

San Diego

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$79

SeattleSan Diego

SEA Seattle/Tacoma Intl - SAN San Diego

SEASAN

Seattle/Tacoma Intl

Sun 10/4

9:45 am-12:42 pm

Nonstop2h 57m

San Diego

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/7

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Washington to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Washington with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Washington to San Diego

What is the cheapest month to book a flight from State of Washington to San Diego?

Currently, January is the cheapest month in which you can book a flight from State of Washington to San Diego (average of $205). Flying from State of Washington to San Diego in December is currently the most expensive (average of $324). 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.

What is the cheapest time of day to fly from WA to SAN?

Unlike in the morning, when flights are generally more expensive, you can save up to 24% on flights from State of Washington to San Diego by exploring options for tickets in the evening.

Weekly flight availability from State of Washington to San Diego

The most flights from USWA to SAN are scheduled on a Sunday (37 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from State of Washington to San Diego?

Airfare is below average for this route at the moment.
State of Washington to San Diego flights typically cost between $160 and $301 in October.
The cheapest round-trip price found within the last 5 days was $141 on Alaska Airlines (Oct 15-Oct 18).

How far ahead should I book a flight from State of Washington to San Diego?

To ensure you get the cheapest price possible for a flight from State of Washington to San Diego, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from State of Washington to San Diego?

Travelers seeking maximum savings on their State of Washington to San Diego flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

  • What airport do you fly into for flights to San Diego from Washington?

    Most people fly into San Diego (SAN) if they book a flight to San Diego from Washington. San Diego is conveniently located just 2.6 mi from San Diego’s city center.

  • How popular is this State of Washington to San Diego flight route?

  • How long is the flight from State of Washington to San Diego?

    There are many flights that can get you from State of Washington to San Diego in 2h 25m. Fly via Southwest, Alaska Airlines, or Delta to get the fastest option. The distance from State of Washington to San Diego is about 933 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to San Diego one-way?

    The cheapest airlines for a one-way flight from State of Washington to San Diego are Southwest ($58), Frontier ($65), and Alaska Airlines ($66).

  • What are the most popular routes from State of Washington to San Diego?

  • What are the most reliable airlines from State of Washington to San Diego?

    Before booking your flight to San Diego from State of Washington, check out the most reliable airlines to get you to your destination on time: Korean Air (91%), KLM (77%), Delta( 75%).

  • What are the cheapest flights from State of Washington to San Diego?

    On average you can expect to pay $427 for a flight from State of Washington to San Diego. The cheapest flight overall is $58 while the most popular route, (Seattle/Tacoma Intl - San Diego) is currently priced at $97.

  • Can I find deals for flights from Washington to San Diego that include hotel bookings?

    Yes. In addition to deals on Washington to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to San Diego.

  • Can I find deals for business class flights from Washington to San Diego?

    Yes. Cheapflights offers flight deals from Washington to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to San Diego?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to San Diego (average of $205). Flying from State of Washington to San Diego in December is currently the most expensive (average of $324). 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.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
National City
Chula Vista
Coronado
Poway
San Ysidro
La Mesa
Santee
Julian
Lemon Grove

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Alternative routes for Washington to San Diego

Top 7 airlines flying from Washington to San Diego

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$87Average$223FlexibilityNo cancel feeOn-time62%
DeltaCheapest$112Average$287FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$119Average$269FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$119Average$385FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$178Average$384FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$187Average$317FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$227Average$495FlexibilityNo cancel feeOn-time71%

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