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$72+ Cheap flights from San Diego (SAN) to Washington

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SEA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from San Diego to Washington

Keep the following information in mind while searching for San Diego to Washington flight deals. Data was last updated September 17, 2025.

Round-trip from

$132
(Cheapflightsfares)

One-way from

$72
(Cheapflightsfares)

Popular in

July

Cheapest in

January

Average price

$232

Good round-trip deal

$147 or less

Good one-way deal

$108 or less
From San Diego to Washington
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One-way flight from San Diego to Washington
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Highest demand for flights based on searches. 11% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 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 San Diego to Washington.
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Price to beat on a one-way flight from San Diego to Washington.
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Find flight deals from San Diego to Washington

Cheapest flights from San Diego to Washington
Explore the most affordable flight options available from San Diego to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:50 pmSAN - GEG
Nonstop2h 51mAlaska Airlines
Wed 10/227:00 amGEG - SAN
Nonstop2h 55mAlaska Airlines
Deal found 9/15$132
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.
Tue 10/77:50 pmSAN - GEG
Nonstop2h 51mHawaiian Airlines
Sat 10/117:00 amGEG - SAN
Nonstop2h 55mHawaiian Airlines
Deal found 9/16$137
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:25 amSAN - PAE
1 stop11h 26mFrontier
Mon 9/2912:56 pmPAE - SAN
1 stop10h 57mFrontier
Deal found 9/15$144
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:14 amSAN - PAE
1 stop9h 04mFrontier
Mon 11/1712:53 pmPAE - SAN
1 stop10h 57mFrontier
Deal found 9/16$145
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.
Wed 10/153:35 pmSAN - GEG
1 stop6h 50mSouthwest
Tue 10/2112:50 pmGEG - SAN
1 stop4h 10mSouthwest
Deal found 9/16$152
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 10/212:33 pmSAN - PAE
1 stop5h 18mFrontier
Thu 10/95:19 pmPAE - SAN
1 stop5h 45mFrontier
Deal found 9/17$155
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.
Sat 10/187:50 pmSAN - GEG
Nonstop2h 51mAlaska Airlines
Sun 10/197:00 amGEG - SAN
Nonstop2h 55mAlaska Airlines
Deal found 9/16$157
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.
Wed 10/295:25 pmSAN - SEA
Nonstop3h 09mAlaska Airlines
Sat 11/1511:50 amSEA - SAN
Nonstop2h 57mAlaska Airlines
Deal found 9/14$161
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/178:33 pmSAN - PDX
Nonstop2h 43mHawaiian Airlines
Wed 10/227:00 amPDX - SAN
1 stop5h 16mHawaiian Airlines
Deal found 9/16$162
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/73:35 pmSAN - SEA
2 stops6h 25mSouthwest
Wed 10/86:15 amSEA - SAN
1 stop6h 15mSouthwest
Deal found 9/15$162
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/154:20 pmSAN - GEG
2 stops7h 15mSouthwest
Wed 10/2211:50 amGEG - SAN
1 stop4h 40mSouthwest
Deal found 9/15$162
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.
Tue 10/147:00 amSAN - PDX
Nonstop2h 44mAlaska Airlines
Tue 10/215:55 pmPDX - SAN
1 stop18h 21mAlaska Airlines
Deal found 9/16$163

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Washington 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 17, 2025.
Use the filters below to find and compare flights from San Diego to Washington that are best for you.

Fly from

San Diego

Fly to

Washington

Route

Depart

Return

Price

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Wed 10/15

7:50 pm-10:41 pm

Nonstop2h 51m

Spokane

Wed 10/22

7:00 am-9:55 am

Nonstop2h 55m

$137

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Sat 10/18

7:50 pm-10:41 pm

Nonstop2h 51m

Spokane

Tue 10/21

7:00 am-9:55 am

Nonstop2h 55m

$137

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Tue 10/7

7:50 pm-10:41 pm

Nonstop2h 51m

Spokane

Sat 10/11

7:00 am-9:55 am

Nonstop2h 55m

$137

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Sat 10/25

7:58 am-2:03 pm

1 stop6h 05m

Spokane

Sat 11/1

7:00 am-9:58 am

Nonstop2h 58m

$147

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Sat 10/18

1:40 pm-6:43 pm

1 stop5h 03m

Spokane

Tue 10/21

11:20 am-6:10 pm

1 stop6h 50m

$157

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Fri 10/17

7:50 pm-10:41 pm

Nonstop2h 51m

Spokane

Tue 10/21

7:00 am-9:55 am

Nonstop2h 55m

$157

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Tue 10/7

7:10 pm-11:43 pm

1 stop4h 33m

Spokane

Sat 10/11

3:37 pm-10:31 pm

1 stop6h 54m

$157

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Sat 10/18

7:50 pm-10:41 pm

Nonstop2h 51m

Spokane

Sun 10/19

7:00 am-9:55 am

Nonstop2h 55m

$157

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Wed 10/15

4:20 pm-11:35 pm

2 stops7h 15m

Spokane

Wed 10/22

11:50 am-4:30 pm

1 stop4h 40m

$162

San DiegoPortland

SAN - PDX

SANPDX

San Diego

Tue 10/14

7:00 am-9:44 am

Nonstop2h 44m

Portland

Tue 10/21

5:55 pm-12:16 pm

1 stop18h 21m

$163

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results
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Best time to book a flight from San Diego to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from San Diego 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 San Diego to Washington

What is the cheapest month to book a flight from San Diego to State of Washington?

Currently, January is the cheapest month in which you can book a flight from San Diego to State of Washington (average of $238). Flying from San Diego to State of Washington in June is currently the most expensive (average of $387). 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 SAN to WA?

Find hourly flight availability from San Diego to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from San Diego to State of Washington, 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 San Diego to State of Washington

Explore weekly flight availability from San Diego to Washington. 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 17, 2025.

The most flights from SAN to USWA are scheduled on a Friday (60 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (41 on average).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated September 17, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from San Diego to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,961 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,729 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Frontier
5.8
Fair
3,173 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from San Diego to Washington. 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 from for flights from San Diego to Washington?

    Located just 2.6 mi from the city center, San Diego (SAN) is the airport most travelers will use when flying to Washington from San Diego.

  • How popular is this San Diego to State of Washington flight route?

    This flight path from San Diego to Washington was viewed by 130 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from San Diego to State of Washington?

    Departing from San Diego to State of Washington will take you 2h 51m. Airlines will cover a distance of 1028 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from San Diego to State of Washington one-way?

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $78. However, be on the lookout for offers from Delta and Southwest, as they are both options that can get you from San Diego to State of Washington for a low price.

  • What are the most popular routes from San Diego to State of Washington?

    Most travelers choose San Diego - Seattle/Tacoma Intl, San Diego - Portland or San Diego - Everett Paine Field when deciding on the best route from San Diego to State of Washington.

  • What are the most reliable airlines from San Diego to State of Washington?

    No one likes to see their flight delayed. When booking a flight from San Diego to State of Washington consider choosing Scandinavian Airlines (89%), Delta (87%) or Virgin Atlantic (86%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay $747 for a flight from San Diego to State of Washington. The cheapest flight overall is $108 while the most popular route, (San Diego - Seattle/Tacoma Intl) is currently priced at $145.

  • Can I find deals for flights from San Diego to Washington that include hotel bookings?

    Yes. In addition to deals on San Diego to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Washington.

  • Can I find deals for business class flights from San Diego to Washington?

    Yes. Cheapflights offers flight deals from San Diego to Washington 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 San Diego to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from San Diego to State of Washington (average of $238). Flying from San Diego to State of Washington in June is currently the most expensive (average of $387). 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.

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Alternative routes for San Diego to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from San Diego to Washington

Discover the top 9 airlines that operate flights from San Diego to Washington. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$66Average$163FlexibilityNo cancel feeOn-time65%
FrontierCheapest$99Average$176FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$107Average$148FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$113Average$392FlexibilityNo cancel feeOn-time71%
DeltaCheapest$127Average$300FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$141Average$342FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$151Average$408FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$156Average$336FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$185Average$351FlexibilityNo cancel feeOn-time69%

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