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$72+ Cheap flights from Washington to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAN
Jun 24 — Jul 11
Wed 6/24
Wed 7/1
1 adult, Economy
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Cheap flight deals from Washington to San Diego

Cheapest flights from Washington to San Diego
Explore the most affordable flight options available from Washington to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 25, 2026.

This CheapOair deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/168:15 am
GEG
-
SAN
Nonstop2h 48m
Alaska Airlines
Mon 8/178:22 pm
SAN
-
GEG
Nonstop2h 45m
Alaska Airlines
Deal found 5/24$142
This Alaska Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/138:15 am
GEG
-
SAN
Nonstop2h 48m
Alaska Airlines
Tue 6/168:22 pm
SAN
-
GEG
Nonstop2h 45m
Alaska Airlines
Deal found 5/23$143
This Southwest deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/412:25 pm
GEG
-
SAN
Nonstop2h 45m
Southwest
Fri 7/1010:30 am
SAN
-
GEG
1 stop6h 00m
Southwest
Deal found 5/24$153
This Delta deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:15 am
GEG
-
SAN
1 stop4h 56m
Delta
Mon 8/177:02 pm
SAN
-
GEG
1 stop4h 57m
Delta
Deal found 5/24$162
This Delta deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:10 pm
GEG
-
SAN
1 stop6h 40m
Delta
Thu 7/164:11 pm
SAN
-
GEG
1 stop5h 00m
Delta
Deal found 5/20$163
This Expedia deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:10 am
PAE
-
SAN
Nonstop2h 54m
Alaska Airlines
Wed 9/237:27 pm
SAN
-
PAE
Nonstop3h 02m
Alaska Airlines
Deal found 5/23$177
This Alaska Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:16 am
GEG
-
SAN
Nonstop2h 55m
Alaska Airlines
Fri 10/237:57 pm
SAN
-
GEG
Nonstop2h 54m
Alaska Airlines
Deal found 5/24$178
This Alaska Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:10 am
PAE
-
SAN
Nonstop2h 54m
Alaska Airlines
Wed 9/167:27 pm
SAN
-
PAE
Nonstop3h 02m
Alaska Airlines
Deal found 5/20$185
This CheapOair deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:16 am
GEG
-
SAN
Nonstop2h 55m
Alaska Airlines
Tue 10/206:48 pm
SAN
-
GEG
Nonstop2h 52m
Alaska Airlines
Deal found 5/21$187
This Southwest deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:20 pm
GEG
-
SAN
Nonstop2h 40m
Southwest
Tue 8/256:15 pm
SAN
-
GEG
1 stop4h 40m
Southwest
Deal found 5/22$188
This United Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:45 am
SEA
-
SAN
1 stop5h 23m
United Airlines
Tue 7/711:55 am
SAN
-
SEA
1 stop6h 52m
United Airlines
Deal found 5/24$189
This Southwest deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/293:25 pm
SEA
-
SAN
1 stop5h 35m
Southwest
Wed 8/54:10 pm
SAN
-
SEA
2 stops5h 35m
Southwest
Deal found 5/22$190

Find flight deals from Washington to San Diego

Keep the following information in mind while searching for Washington to San Diego flight deals. Data was last updated May 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$142
(CheapOair)

One-way from

$72
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$288

Good round-trip deal

$139 or less

Good one-way deal

$106 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Diego flights.
Search Deals
From Washington to San Diego
Search Deals
One-way flight from Washington to San Diego
Search Deals
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Washington to San Diego.
Search Deals
Price to beat on a one-way flight from Washington to San Diego.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 25, 2026.
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

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sat 8/15

5:15 am-10:11 am

1 stop4h 56m

San Diego

Mon 8/17

7:02 pm-11:59 pm

1 stop4h 57m

$162

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Thu 7/9

5:25 am-10:11 am

1 stop4h 46m

San Diego

Wed 7/15

7:00 pm-11:55 pm

1 stop4h 55m

$163

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Fri 6/26

7:08 pm-11:56 pm

1 stop4h 48m

San Diego

Fri 7/10

7:00 pm-11:55 pm

1 stop4h 55m

$163

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sat 6/13

5:10 pm-10:18 pm

1 stop5h 08m

San Diego

Sun 6/14

7:00 am-11:52 am

1 stop4h 52m

$163

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Thu 7/30

7:00 am-12:39 pm

1 stop5h 39m

San Diego

Mon 8/3

1:34 pm-9:13 pm

1 stop7h 39m

$163

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sat 6/13

7:00 am-3:04 pm

1 stop8h 04m

San Diego

Tue 6/16

7:13 pm-11:59 pm

1 stop4h 46m

$163

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Thu 6/18

4:20 pm-11:40 pm

1 stop7h 20m

San Diego

Sun 6/21

7:00 am-11:52 am

1 stop4h 52m

$191

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Wed 8/5

8:30 am-11:25 am

Nonstop2h 55m

San Diego

Mon 8/10

4:50 pm-10:55 pm

1 stop6h 05m

$193

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Thu 6/18

6:15 am-11:40 am

1 stop5h 25m

San Diego

Tue 6/23

7:15 pm-11:30 pm

1 stop4h 15m

$207

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Wed 7/15

9:45 am-12:39 pm

Nonstop2h 54m

San Diego

Sun 7/19

1:36 pm-4:32 pm

Nonstop2h 56m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/24

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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, February is the cheapest month in which you can book a flight from State of Washington to San Diego (average of $229). Flying from State of Washington to San Diego in July is currently the most expensive (average of $436). 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?

Find hourly flight availability from Washington to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 25, 2026.

Unlike at noon, 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 afternoon.

Weekly flight availability from State of Washington to San Diego

Explore weekly flight availability from Washington to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 25, 2026.

The most flights from USWA to SAN are scheduled on a Sunday (40 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (17 on average).

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

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 50 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?

Use this chart to determine the cheapest time to fly round-trip from Washington to San Diego. Price data was last updated on May 16, 2026.

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. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Washington to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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?

    Flights from Washington to San Diego have been viewed 54 times in the past calendar month.

  • 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 49m. Fly via Delta, Southwest, or Alaska Airlines to get the fastest option. The distance from State of Washington to San Diego is about 1051 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 Spirit Airlines ($49), Frontier ($65), and Delta ($68).

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

    The most popular route from State of Washington to San Diego is Seattle/Tacoma Intl - San Diego. You may also consider Portland - San Diego or Everett Paine Field - 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: WestJet (89%), KLM (87%), Alaska Airlines( 86%).

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

    On average you can expect to pay $428 for a flight from State of Washington to San Diego. The cheapest flight overall is $96 while the most popular route, (Seattle/Tacoma Intl - San Diego) is currently priced at $157.

  • 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, February is the cheapest month in which you can book a flight from State of Washington to San Diego (average of $229). Flying from State of Washington to San Diego in July is currently the most expensive (average of $436). 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
Chula Vista
National City
Coronado
Poway
La Mesa
Julian
Santee
Lemon Grove

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Top 8 airlines flying from Washington to San Diego

Discover the top 8 airlines that operate flights from Washington to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$69Average$158FlexibilityNo cancel feeOn-time65%
FrontierCheapest$87Average$198FlexibilityNo cancel feeOn-time62%
DeltaCheapest$115Average$292FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$118Average$309FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$119Average$297FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$124Average$378FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$178Average$353FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$225Average$465FlexibilityNo cancel feeOn-time71%

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