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$45+ 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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAN
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$83
(Mytrip)

One-way from

$45
(Booking.com)

Popular in

December

Cheapest in

September

Average price

$317

Good round-trip deal

$110 or less

Good one-way deal

$110 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-San Diego flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Diego flights.
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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. 2% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Mytrip deal was found by Cheapflights users on 4/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/267:30 amBLI - SAN
Nonstop2h 50mAllegiant Air
Mon 6/211:10 amSAN - BLI
Nonstop3h 03mAllegiant Air
Deal found 4/27$83
This Mytrip deal was found by Cheapflights users on 4/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/267:30 amBLI - SAN
Nonstop2h 50mMultiple Airlines
Mon 6/28:48 pmSAN - BLI
1 stop23h 37mMultiple Airlines
Deal found 4/27$131
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/221:37 pmPDX - SAN
1 stop4h 26mSpirit Airlines
Fri 5/236:15 amSAN - PDX
1 stop6h 27mSpirit Airlines
Deal found 4/28$156
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 5/219:15 amPAE - SAN
Nonstop2h 49mAlaska Airlines
Wed 5/2810:15 pmSAN - PAE
1 stop10h 56mAlaska Airlines
Deal found 4/29$157
This Booking.com deal was found by Cheapflights users on 4/29. 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.
Tue 5/66:20 amPDX - SAN
1 stop16h 51mMultiple Airlines
Thu 6/56:15 amSAN - PDX
1 stop6h 27mMultiple Airlines
Deal found 4/29$158
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 5/2012:40 pmSEA - SAN
1 stop6h 01mAlaska Airlines
Sun 5/258:15 amSAN - SEA
Nonstop3h 09mAlaska Airlines
Deal found 4/29$167
This FlightHub deal was found by Cheapflights users on 4/29. 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 6/53:20 pmSEA - SAN
1 stop4h 33mMultiple Airlines
Sun 6/87:16 pmSAN - SEA
1 stop18h 54mMultiple Airlines
Deal found 4/29$168
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/133:20 pmSEA - SAN
1 stop8h 36mSpirit Airlines
Fri 5/161:06 pmSAN - SEA
2 stops35h 04mSpirit Airlines
Deal found 4/29$171
This Expedia deal was found by Cheapflights users on 4/29. 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.
Mon 6/911:20 amPAE - SAN
1 stop5h 02mMultiple Airlines
Wed 6/118:07 amSAN - PAE
1 stop7h 57mMultiple Airlines
Deal found 4/29$172
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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.
Tue 5/66:20 amPDX - SAN
1 stop6h 03mFrontier
Sat 5/106:10 pmSAN - PDX
1 stop6h 28mFrontier
Deal found 4/29$176
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 5/2710:33 amPDX - SAN
Nonstop2h 31mAlaska Airlines
Tue 6/37:00 amSAN - PDX
Nonstop2h 42mAlaska Airlines
Deal found 4/28$177
This Frontier deal was found by Cheapflights users on 4/29. 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.
Wed 4/306:00 amSEA - SAN
1 stop6h 10mFrontier
Sat 5/31:17 pmSAN - SEA
1 stop11h 27mFrontier
Deal found 4/29$178

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 April 30, 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

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 5/26

7:30 am-10:20 am

Nonstop2h 50m

San Diego

Mon 6/2

11:10 am-2:13 pm

Nonstop3h 03m

$83

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 5/26

7:30 am-10:20 am

Nonstop2h 50m

San Diego

Mon 6/2

8:48 pm-8:25 pm

1 stop23h 37m

$131

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Thu 5/22

1:37 pm-6:03 pm

1 stop4h 26m

San Diego

Fri 5/23

6:15 am-12:42 pm

1 stop6h 27m

$156

EverettSan Diego

PAE - SAN

PAESAN

Everett Paine Field

Wed 5/21

9:15 am-12:04 pm

Nonstop2h 49m

San Diego

Wed 5/28

10:15 pm-9:11 am

1 stop10h 56m

$157

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Tue 5/6

6:20 am-11:11 pm

1 stop16h 51m

San Diego

Thu 6/5

6:15 am-12:42 pm

1 stop6h 27m

$158

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Tue 5/20

3:33 pm-6:20 pm

Nonstop2h 47m

San Diego

Tue 5/27

7:20 am-10:36 am

Nonstop3h 16m

$167

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Wed 6/4

3:20 pm-11:56 pm

1 stop8h 36m

San Diego

Sun 6/8

7:16 pm-2:10 pm

1 stop18h 54m

$168

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Sat 6/21

3:58 pm-11:29 pm

1 stop7h 31m

San Diego

Tue 6/24

6:15 am-3:03 pm

1 stop8h 48m

$170

EverettSan Diego

PAE - SAN

PAESAN

Everett Paine Field

Mon 6/9

11:20 am-4:22 pm

1 stop5h 02m

San Diego

Wed 6/11

8:07 am-4:04 pm

1 stop7h 57m

$172

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Tue 5/6

6:20 am-12:23 pm

1 stop6h 03m

San Diego

Sat 5/10

6:10 pm-12:38 am

1 stop6h 28m

$176

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April 30, 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 April 30, 2025.

The most flights from USWA to SAN are scheduled on a Monday (58 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated April 30, 2025.
Read through reviews of airlines operating flights from Washington to San Diego, such as Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,405 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 60 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 Allegiant Air ($45), Alaska Airlines ($78), and Delta ($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: Sun Country Air (100%), China Airlines (94%), LATAM Airlines( 94%).

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

    On average you can expect to pay $397 for a flight from State of Washington to San Diego. The cheapest flight overall is $88 while the most popular route, (Seattle/Tacoma Intl - San Diego) is currently priced at $109.

  • 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 Washington?

Book flights to Washington if you plan to visit one of these locations
El Cajon
Chula Vista
Lemon Grove
National City
Imperial Beach
La Mesa
Alpine
Poway
Santee
Coronado

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Alternative routes for Washington to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$79Average$161FlexibilityNo cancel feeOn-time65%
FrontierCheapest$102Average$204FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$108Average$178FlexibilityNo cancel feeOn-time88%
DeltaCheapest$117Average$278FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$125Average$284FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$141Average$393FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$156Average$376FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$173Average$383FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$176Average$357FlexibilityNo cancel feeOn-time69%

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