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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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAN
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$144
(Frontier)

One-way from

$72
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$222

Good round-trip deal

$167 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 ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:41 pmPAE - SAN
1 stop4h 36mFrontier
Thu 10/212:33 pmSAN - PAE
1 stop5h 18mFrontier
Deal found 9/14$143
This Frontier deal was found by Cheapflights users on 9/14. 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.
Fri 11/1412:53 pmPAE - SAN
1 stop10h 57mFrontier
Sun 11/1611:34 amSAN - PAE
1 stop6h 44mFrontier
Deal found 9/14$144
This Frontier deal was found by Cheapflights users on 9/14. 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 10/2012:53 pmPAE - SAN
1 stop10h 57mFrontier
Thu 10/238:11 amSAN - PAE
1 stop9h 28mFrontier
Deal found 9/14$145
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/297:00 amGEG - SAN
Nonstop2h 58mHawaiian Airlines
Wed 11/56:38 pmSAN - GEG
1 stop5h 44mHawaiian Airlines
Deal found 9/15$147
This Southwest deal was found by Cheapflights users on 9/16. 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.
Tue 10/2112:50 pmGEG - SAN
1 stop4h 10mSouthwest
Sat 10/254:35 pmSAN - GEG
1 stop4h 45mSouthwest
Deal found 9/16$152
This FlightHub deal was found by Cheapflights users on 9/14. 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 10/305:41 pmPAE - SAN
1 stop18h 54mFrontier
Sun 11/25:41 amSAN - PAE
1 stop29h 17mFrontier
Deal found 9/14$155
This Frontier deal was found by Cheapflights users on 9/14. 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.
Fri 10/1012:53 pmPAE - SAN
1 stop10h 57mFrontier
Sun 10/128:11 amSAN - PAE
1 stop9h 28mFrontier
Deal found 9/14$156
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/227:00 amGEG - SAN
Nonstop2h 55mAlaska Airlines
Mon 11/38:59 pmSAN - GEG
Nonstop2h 57mAlaska Airlines
Deal found 9/16$157
This Hawaiian Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/227:00 amGEG - SAN
Nonstop2h 55mHawaiian Airlines
Mon 11/38:03 amSAN - GEG
1 stop5h 18mHawaiian Airlines
Deal found 9/16$167
This KAYAK deal was found by Cheapflights users on 9/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2811:50 amSEA - SAN
Nonstop2h 57mAlaska Airlines
Thu 11/66:38 pmSAN - SEA
Nonstop3h 10mAlaska Airlines
Deal found 9/14$171
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:15 pmSEA - SAN
Nonstop2h 58mHawaiian Airlines
Tue 10/214:55 pmSAN - SEA
Nonstop3h 04mHawaiian Airlines
Deal found 9/14$172
This KAYAK deal was found by Cheapflights users on 9/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/118:10 pmSEA - SAN
Nonstop2h 55mHawaiian Airlines
Tue 10/141:52 pmSAN - SEA
1 stop4h 58mHawaiian Airlines
Deal found 9/14$173

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 September 16, 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

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Wed 11/19

7:00 am-9:58 am

Nonstop2h 58m

San Diego

Wed 12/3

8:58 pm-11:59 pm

Nonstop3h 01m

$147

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 10/7

4:17 pm-8:49 pm

1 stop4h 32m

San Diego

Tue 10/14

7:50 pm-10:41 pm

Nonstop2h 51m

$147

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Wed 10/29

7:00 am-9:58 am

Nonstop2h 58m

San Diego

Wed 11/5

6:38 pm-12:22 am

1 stop5h 44m

$147

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 10/21

5:24 pm-10:31 pm

1 stop5h 07m

San Diego

Sat 10/25

6:15 am-12:35 pm

1 stop6h 20m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sat 1/24

7:00 am-9:50 am

Nonstop2h 50m

San Diego

Sun 1/25

8:59 pm-11:37 pm

Nonstop2h 38m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Wed 10/29

3:37 pm-10:31 pm

1 stop6h 54m

San Diego

Wed 11/5

3:15 pm-10:48 pm

1 stop7h 33m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Thu 10/23

7:00 am-9:55 am

Nonstop2h 55m

San Diego

Wed 10/29

8:59 pm-11:56 pm

Nonstop2h 57m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Wed 10/29

7:00 am-9:58 am

Nonstop2h 58m

San Diego

Mon 11/3

8:59 pm-11:56 pm

Nonstop2h 57m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sat 10/11

7:00 am-9:55 am

Nonstop2h 55m

San Diego

Mon 10/13

7:50 pm-10:41 pm

Nonstop2h 51m

$157

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Wed 10/22

7:00 am-9:55 am

Nonstop2h 55m

San Diego

Mon 11/3

8:59 pm-11:56 pm

Nonstop2h 57m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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 September 16, 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 September 16, 2025.

The most flights from USWA to SAN are scheduled on a Monday (60 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 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 39 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 46m. Fly via Hawaiian Airlines, Delta, or United 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 Southwest ($74), Alaska Airlines ($78), and Frontier ($78).

  • 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%), Aeromexico (100%), LATAM Airlines( 100%).

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

    On average you can expect to pay $430 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 $145.

  • 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
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City

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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$71Average$155FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$100Average$180FlexibilityNo cancel feeOn-time88%
FrontierCheapest$102Average$215FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$119Average$334FlexibilityNo cancel feeOn-time85%
DeltaCheapest$132Average$282FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$156Average$386FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$156Average$303FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$176Average$362FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$176Average$378FlexibilityNo cancel feeOn-time71%

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