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$75+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAN
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$152
(Priceline)

One-way from

$75
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$257

Good round-trip deal

$187 or less

Good one-way deal

$108 or less
From Washington to San Diego
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One-way flight from Washington to San Diego
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Highest demand for flights based on searches. 3% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Washington to San Diego.
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Price to beat on a one-way flight from Washington to San Diego.
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Find 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 August 14, 2025.

This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1712:53 pmPAE - SAN
1 stop7h 15mFrontier
Sun 10/198:11 amSAN - PAE
1 stop9h 28mFrontier
Deal found 8/14$152
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/242:31 pmSEA - SAN
1 stop9h 19mFrontier
Mon 10/2710:52 amSAN - SEA
1 stop6h 52mFrontier
Deal found 8/13$155
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/221:47 pmSEA - SAN
1 stop9h 30mFrontier
Thu 9/2512:04 pmSAN - SEA
1 stop12h 26mFrontier
Deal found 8/14$156
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1512:56 pmPAE - SAN
1 stop10h 57mFrontier
Thu 9/1812:33 pmSAN - PAE
1 stop5h 18mFrontier
Deal found 8/13$156
This Hawaiian Airlines deal was found by Cheapflights users on 8/12. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:00 amGEG - SAN
Nonstop2h 55mHawaiian Airlines
Sat 11/18:59 pmSAN - GEG
Nonstop2h 57mHawaiian Airlines
Deal found 8/12$157
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 9/207:00 amPAE - SAN
Nonstop2h 53mAlaska Airlines
Tue 9/236:35 amSAN - PAE
Nonstop3h 12mAlaska Airlines
Deal found 8/14$157
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/81:49 pmSEA - SAN
1 stop9h 28mFrontier
Sat 9/137:15 amSAN - SEA
1 stop13h 24mFrontier
Deal found 8/14$158
This Delta deal was found by Cheapflights users on 8/14. 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 10/235:05 amGEG - SAN
1 stop5h 21mDelta
Tue 10/285:25 pmSAN - GEG
1 stop5h 09mDelta
Deal found 8/14$158
This Southwest deal was found by Cheapflights users on 8/11. 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.
Thu 9/113:15 pmGEG - SAN
1 stop8h 00mSouthwest
Thu 9/1810:00 amSAN - GEG
1 stop4h 40mSouthwest
Deal found 8/11$159
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:28 pmSEA - SAN
1 stop27h 36mFrontier
Sun 11/25:25 pmSAN - SEA
1 stop20h 12mFrontier
Deal found 8/14$160
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:41 pmPAE - SAN
1 stop4h 36mFrontier
Thu 9/1812:33 pmSAN - PAE
1 stop5h 18mFrontier
Deal found 8/14$161
This Agoda.com deal was found by Cheapflights users on 8/14. 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 Agoda.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:00 amSEA - SAN
1 stop15h 24mFrontier
Sun 9/2112:04 pmSAN - SEA
1 stop24h 48mFrontier
Deal found 8/14$162

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 August 14, 2025.
Use the filters below to find and compare flights from Washington to San Diego that are best for you.

Fly from

Washington

Fly to

San Diego

Route

Depart

Return

Price

EverettSan Diego

PAE - SAN

PAESAN

Everett Paine Field

Mon 11/10

12:53 pm-11:50 pm

1 stop10h 57m

San Diego

Thu 11/13

6:25 am-5:09 pm

1 stop10h 44m

$156

EverettSan Diego

PAE - SAN

PAESAN

Everett Paine Field

Mon 9/15

12:56 pm-11:53 pm

1 stop10h 57m

San Diego

Thu 9/18

12:33 pm-5:51 pm

1 stop5h 18m

$156

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sat 10/25

7:15 am-2:11 pm

1 stop6h 56m

San Diego

Sat 11/1

3:15 pm-10:51 pm

1 stop7h 36m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sat 10/25

7:00 am-9:55 am

Nonstop2h 55m

San Diego

Sat 11/1

8:59 pm-11:56 pm

Nonstop2h 57m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 9/23

10:45 am-3:55 pm

1 stop5h 10m

San Diego

Sat 9/27

6:45 am-2:30 pm

1 stop7h 45m

$157

EverettSan Diego

PAE - SAN

PAESAN

Everett Paine Field

Wed 9/24

7:00 am-9:53 am

Nonstop2h 53m

San Diego

Sat 9/27

6:35 am-9:47 am

Nonstop3h 12m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Wed 9/3

5:00 am-10:00 am

1 stop5h 00m

San Diego

Sat 9/6

1:57 pm-6:39 pm

1 stop4h 42m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 9/30

7:00 am-9:52 am

Nonstop2h 52m

San Diego

Tue 10/7

7:50 pm-10:41 pm

Nonstop2h 51m

$157

EverettSan Diego

PAE - SAN

PAESAN

Everett Paine Field

Sat 9/20

7:00 am-9:53 am

Nonstop2h 53m

San Diego

Tue 9/30

6:35 am-9:47 am

Nonstop3h 12m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 11/11

5:45 am-12:34 pm

1 stop6h 49m

San Diego

Sat 11/15

10:05 am-4:07 pm

1 stop6h 02m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 60 results
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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
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, August is the cheapest month in which you can book a flight from State of Washington to San Diego (average of $286). Flying from State of Washington 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.

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 August 14, 2025.

When flying from State of Washington to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 August 14, 2025.

The most flights from USWA to SAN are scheduled on a Thursday (65 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (35 on average).

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 45 times in the past calendar month.

  • 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 Frontier ($75), Delta ($79), and Spirit Airlines ($79).

  • 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: China Airlines (100%), LATAM Airlines (100%), WestJet( 88%).

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

    On average you can expect to pay $471 for a flight from State of Washington to San Diego. The cheapest flight overall is $98 while the most popular route, (Seattle/Tacoma Intl - San Diego) is currently priced at $177.

  • 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, August is the cheapest month in which you can book a flight from State of Washington to San Diego (average of $286). Flying from State of Washington 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.

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
Coronado
La Mesa
Poway
National City
Lemon Grove
Imperial Beach
Alpine

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Alternative routes for Washington to San Diego

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Top 9 airlines flying from Washington to San Diego

Discover the top 9 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$72Average$156FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$100Average$180FlexibilityNo cancel feeOn-time88%
FrontierCheapest$102Average$213FlexibilityNo cancel feeOn-time62%
DeltaCheapest$117Average$272FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$119Average$309FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$144Average$382FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$156Average$336FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$176Average$359FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$176Average$375FlexibilityNo cancel feeOn-time71%

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