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$60+ 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAN
Apr 29 — May 61
Wed 4/29
Wed 5/6
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 March 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:45 pm
SEA
-
SAN
1 stop16h 32m
Frontier
Tue 5/59:37 am
SAN
-
SEA
1 stop24h 12m
Frontier
Deal found 3/27$136
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:12 pm
SEA
-
SAN
1 stop13h 22m
Frontier
Wed 5/67:34 pm
SAN
-
SEA
1 stop14h 48m
Frontier
Deal found 3/27$141
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:12 pm
SEA
-
SAN
1 stop24h 47m
Frontier
Fri 5/810:07 pm
SAN
-
SEA
1 stop12h 15m
Frontier
Deal found 3/27$142
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:12 pm
SEA
-
SAN
1 stop13h 22m
Frontier
Thu 5/710:07 pm
SAN
-
SEA
1 stop12h 15m
Frontier
Deal found 3/27$148
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:12 pm
SEA
-
SAN
1 stop13h 22m
Frontier
Mon 5/412:25 pm
SAN
-
SEA
1 stop21h 24m
Frontier
Deal found 3/25$149
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:45 pm
SEA
-
SAN
1 stop16h 32m
Frontier
Thu 4/236:25 am
SAN
-
SEA
1 stop8h 40m
Frontier
Deal found 3/25$150
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/199:54 pm
SEA
-
SAN
1 stop20h 02m
Frontier
Tue 4/2812:12 pm
SAN
-
SEA
1 stop21h 15m
Frontier
Deal found 3/26$155
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/43:19 pm
SEA
-
SAN
1 stop8h 31m
Frontier
Mon 6/810:07 pm
SAN
-
SEA
1 stop12h 28m
Frontier
Deal found 3/25$157
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:12 pm
SEA
-
SAN
1 stop24h 47m
Frontier
Wed 5/67:34 pm
SAN
-
SEA
1 stop14h 48m
Frontier
Deal found 3/30$158
This Expedia deal was found by Cheapflights users on 3/27. 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.
Fri 4/1710:59 pm
SEA
-
SAN
1 stop14h 18m
Frontier
Mon 4/206:25 am
SAN
-
SEA
1 stop27h 02m
Frontier
Deal found 3/27$160
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:57 am
SEA
-
SAN
2 stops24h 37m
Frontier
Tue 4/2112:12 pm
SAN
-
SEA
1 stop21h 15m
Frontier
Deal found 3/25$161
This Booking.com deal was found by Cheapflights users on 3/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:12 pm
SEA
-
SAN
1 stop28h 47m
Frontier
Mon 4/206:25 am
SAN
-
SEA
1 stop27h 02m
Frontier
Deal found 3/26$162

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 March 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$136
(Kiwi.com)

One-way from

$60
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$282

Good round-trip deal

$213 or less

Good one-way deal

$161 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, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 30, 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 4/18

11:05 am-1:45 pm

Nonstop2h 40m

San Diego

Sat 4/18

5:55 pm-10:30 pm

1 stop4h 35m

$168

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Tue 4/21

7:15 am-9:51 am

Nonstop2h 36m

San Diego

Thu 4/23

8:36 pm-11:24 pm

Nonstop2h 48m

$207

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Fri 5/8

3:20 pm-6:07 pm

Nonstop2h 47m

San Diego

Sun 5/10

7:15 am-10:30 am

Nonstop3h 15m

$217

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Sat 5/2

5:00 pm-10:36 pm

1 stop5h 36m

San Diego

Tue 5/5

9:04 am-2:44 pm

1 stop5h 40m

$217

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Tue 4/21

11:45 am-2:38 pm

Nonstop2h 53m

San Diego

Sat 5/2

7:30 am-10:44 am

Nonstop3h 14m

$217
Quickest round-trip

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Sun 4/26

9:27 pm-11:59 pm

Nonstop2h 32m

San Diego

Thu 4/30

8:36 pm-11:24 pm

Nonstop2h 48m

$217

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Wed 5/13

3:30 pm-10:26 pm

1 stop6h 56m

San Diego

Sat 5/16

7:15 am-2:48 pm

1 stop7h 33m

$217

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Thu 6/4

7:35 pm-10:24 pm

Nonstop2h 49m

San Diego

Mon 6/8

7:00 am-10:05 am

Nonstop3h 05m

$221

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Tue 5/19

7:00 am-2:20 pm

1 stop7h 20m

San Diego

Sat 5/23

9:40 am-12:25 pm

Nonstop2h 45m

$225

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Fri 5/8

11:35 am-1:55 pm

Nonstop2h 20m

San Diego

Mon 5/11

5:25 pm-10:35 pm

1 stop5h 10m

$227

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

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, June is the cheapest month in which you can book a flight from State of Washington to San Diego (average of $55). Flying from State of Washington to San Diego in March is currently the most expensive (average of $110). 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 March 30, 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 12% on flights from State of Washington to San Diego by exploring options for tickets in the morning.

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 March 23, 2026.

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

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 March 30, 2026.

The most flights from USWA to SAN are scheduled on a Sunday (39 on average). You will have fewer flight options on Tuesday, 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?

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 40 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 36m. 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. Generally, flights for this route are nonstop.

  • 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 Allegiant Air ($45), Spirit Airlines ($46), 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: Japan Airlines (88%), Alaska Airlines (87%), Hawaiian Airlines( 84%).

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

    On average you can expect to pay $500 for a flight from State of Washington to San Diego. The cheapest flight overall is $78 while the most popular route, (Seattle/Tacoma Intl - San Diego) is currently priced at $193.

  • 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, June is the cheapest month in which you can book a flight from State of Washington to San Diego (average of $55). Flying from State of Washington to San Diego in March is currently the most expensive (average of $110). 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
La Mesa
Poway
Julian
Lemon Grove

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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 March 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$69Average$154FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$82Average$124FlexibilityNo cancel feeOn-time88%
FrontierCheapest$87Average$201FlexibilityNo cancel feeOn-time62%
DeltaCheapest$111Average$282FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$115Average$314FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$118Average$297FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$122Average$369FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$196Average$426FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$225Average$444FlexibilityNo cancel feeOn-time71%

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