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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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$97
(Booking.com)

One-way from

$45
(Booking.com)

Popular in

December

Cheapest in

January

Average price

$287

Good round-trip deal

$210 or less

Good one-way deal

$128 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 ($8 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 June 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 June 12, 2025.

This Booking.com deal was found by Cheapflights users on 6/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/47:30 amBLI - SAN
Nonstop2h 53mAllegiant Air
Fri 7/1111:13 amSAN - BLI
Nonstop2h 55mAllegiant Air
Deal found 6/11$97
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/79:00 pmBLI - SAN
1 stop21h 26mMultiple Airlines
Fri 7/1111:13 amSAN - BLI
Nonstop2h 55mMultiple Airlines
Deal found 6/12$130
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
Wed 7/23:58 pmSEA - SAN
1 stop7h 31mSpirit Airlines
Wed 7/96:15 amSAN - SEA
1 stop10h 10mSpirit Airlines
Deal found 6/10$161
This FlightHub deal was found by Cheapflights users on 6/10. 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.
Fri 9/52:35 pmPDX - SAN
1 stop17h 39mSpirit Airlines
Mon 9/89:09 amSAN - PDX
1 stop4h 21mSpirit Airlines
Deal found 6/10$163
This CheapOair deal was found by Cheapflights users on 6/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/23:10 pmPDX - SAN
1 stop7h 56mMultiple Airlines
Mon 8/46:00 amSAN - PDX
Nonstop2h 35mMultiple Airlines
Deal found 6/12$169
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 8/279:53 amSEA - SAN
Nonstop2h 59mAlaska Airlines
Wed 9/179:30 amSAN - SEA
Nonstop3h 07mAlaska Airlines
Deal found 6/10$177
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/153:25 pmGEG - SAN
1 stop7h 26mDelta
Mon 8/181:57 pmSAN - GEG
1 stop7h 14mDelta
Deal found 6/11$177
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/35:41 pmPDX - SAN
Nonstop2h 37mAlaska Airlines
Sat 9/62:03 pmSAN - PDX
Nonstop2h 41mAlaska Airlines
Deal found 6/11$177
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 8/277:00 amPAE - SAN
Nonstop2h 53mAlaska Airlines
Wed 9/176:35 amSAN - PAE
Nonstop3h 12mAlaska Airlines
Deal found 6/10$177
This Frontier deal was found by Cheapflights users on 6/10. 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.
Thu 8/285:59 pmPAE - SAN
1 stop5h 04mFrontier
Thu 9/186:25 amSAN - PAE
1 stop10h 44mFrontier
Deal found 6/10$181
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/85:45 pmSEA - SAN
Nonstop2h 53mHawaiian Airlines
Sat 9/131:49 pmSAN - SEA
Nonstop3h 02mHawaiian Airlines
Deal found 6/11$182
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:33 pmGEG - SAN
1 stop4h 33mHawaiian Airlines
Sat 11/16:06 pmSAN - GEG
1 stop5h 09mHawaiian Airlines
Deal found 6/11$184

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 June 12, 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

Fri 7/4

7:30 am-10:23 am

Nonstop2h 53m

San Diego

Fri 7/11

11:13 am-2:08 pm

Nonstop2h 55m

$97

BellinghamSan Diego

BLI - SAN

BLISAN

Bellingham

Mon 7/7

9:00 pm-6:26 pm

1 stop21h 26m

San Diego

Fri 7/11

11:13 am-2:08 pm

Nonstop2h 55m

$130

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Wed 7/2

3:58 pm-11:29 pm

1 stop7h 31m

San Diego

Wed 7/9

6:15 am-4:25 pm

1 stop10h 10m

$161

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Fri 9/5

2:35 pm-8:14 am

1 stop17h 39m

San Diego

Mon 9/8

9:09 am-1:30 pm

1 stop4h 21m

$163

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Sat 8/2

3:10 pm-11:06 pm

1 stop7h 56m

San Diego

Mon 8/4

6:00 am-8:35 am

Nonstop2h 35m

$169

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Wed 8/27

9:53 am-12:52 pm

Nonstop2h 59m

San Diego

Wed 9/17

9:30 am-12:37 pm

Nonstop3h 07m

$177

SpokaneSan Diego

GEG - SAN

GEGSAN

Spokane

Fri 8/15

3:25 pm-10:51 pm

1 stop7h 26m

San Diego

Mon 8/18

1:57 pm-9:11 pm

1 stop7h 14m

$177

PortlandSan Diego

PDX - SAN

PDXSAN

Portland

Wed 9/3

5:41 pm-8:18 pm

Nonstop2h 37m

San Diego

Sat 9/6

2:03 pm-4:44 pm

Nonstop2h 41m

$177

EverettSan Diego

PAE - SAN

PAESAN

Everett Paine Field

Wed 8/27

7:00 am-9:53 am

Nonstop2h 53m

San Diego

Wed 9/17

6:35 am-9:47 am

Nonstop3h 12m

$177

EverettSan Diego

PAE - SAN

PAESAN

Everett Paine Field

Thu 8/28

5:59 pm-11:03 pm

1 stop5h 04m

San Diego

Thu 9/18

6:25 am-5:09 pm

1 stop10h 44m

$181

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 June 12, 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 June 12, 2025.

The most flights from USWA to SAN are scheduled on a Thursday (62 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 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 June 12, 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
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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: Scandinavian Airlines (94%), China Airlines (89%), LATAM Airlines( 89%).

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

    On average you can expect to pay $347 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 $134.

  • 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
National City
Imperial Beach
La Mesa
Alpine
Lemon Grove
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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$79Average$160FlexibilityNo cancel feeOn-time65%
FrontierCheapest$101Average$207FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$110Average$182FlexibilityNo cancel feeOn-time88%
DeltaCheapest$117Average$274FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$125Average$312FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$142Average$390FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$156Average$361FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$173Average$366FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$176Average$360FlexibilityNo cancel feeOn-time69%

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