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$63+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SEA
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:14 pmSAN - SEA
2 stops27h 28mFrontier
Tue 1/61:00 pmSEA - SAN
1 stop10h 16mFrontier
Deal found 12/16$184
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:00 amSAN - GEG
1 stop6h 13mDelta
Wed 1/73:40 pmGEG - SAN
1 stop5h 03mDelta
Deal found 12/17$217
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/224:47 pmSAN - PDX
1 stop18h 56mFrontier
Sat 1/105:26 pmPDX - SAN
1 stop4h 32mFrontier
Deal found 12/16$242
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:03 pmSAN - GEG
1 stop5h 01mDelta
Wed 1/76:05 amGEG - SAN
1 stop6h 43mDelta
Deal found 12/17$258
This CheapOair deal was found by Cheapflights users on 12/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/181:06 pmSAN - SEA
1 stop21h 05mFrontier
Sat 1/173:58 pmSEA - SAN
1 stop18h 57mFrontier
Deal found 12/16$263
This Southwest deal was found by Cheapflights users on 12/16. 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 12/314:50 pmSAN - PDX
1 stop5h 10mSouthwest
Tue 1/1311:30 amPDX - SAN
1 stop6h 35mSouthwest
Deal found 12/16$264
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:14 pmSAN - SEA
1 stop21h 39mFrontier
Fri 1/27:48 pmSEA - SAN
1 stop12h 59mFrontier
Deal found 12/15$270
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:14 pmSAN - SEA
2 stops27h 28mFrontier
Sat 1/32:54 pmSEA - SAN
1 stop9h 05mFrontier
Deal found 12/16$273
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/224:47 pmSAN - PDX
1 stop18h 56mMultiple Airlines
Sat 1/102:30 pmPDX - SAN
Nonstop2h 29mMultiple Airlines
Deal found 12/16$275
This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:28 pmSAN - PDX
1 stop7h 22mMultiple Airlines
Thu 1/812:05 pmPDX - SAN
1 stop11h 54mMultiple Airlines
Deal found 12/15$278
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/241:06 pmSAN - BLI
2 stops30h 36mMultiple Airlines
Thu 1/87:30 amBLI - SAN
1 stop5h 59mMultiple Airlines
Deal found 12/16$279
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 12/311:28 pmSAN - PDX
1 stop7h 22mAlaska Airlines
Tue 1/135:40 pmPDX - SAN
Nonstop2h 31mAlaska Airlines
Deal found 12/16$280

Find 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 December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$119
(Alaska Airlines)

One-way from

$63
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$318

Good round-trip deal

$167 or less

Good one-way deal

$88 or less
Provider with most accurate pricing for San Diego-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Seattle/Tacoma Intl flights.
Search Deals
From San Diego to Washington
Search Deals
One-way flight from San Diego to Washington
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from San Diego to Washington.
Search Deals
Price to beat on a one-way flight from San Diego to Washington.
Search Deals

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 December 18, 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 DiegoSeattle

SAN - SEA

SANSEA

San Diego

Sat 1/24

1:45 pm-5:00 pm

Nonstop3h 15m

Seattle/Tacoma Intl

Wed 1/28

3:21 pm-6:00 pm

Nonstop2h 39m

$119

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Fri 1/9

5:35 pm-8:48 pm

Nonstop3h 13m

Seattle/Tacoma Intl

Sun 1/11

7:10 am-10:02 am

Nonstop2h 52m

$119

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Thu 2/26

6:45 pm-9:59 pm

Nonstop3h 14m

Seattle/Tacoma Intl

Thu 3/5

7:15 am-10:04 am

Nonstop2h 49m

$119

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Thu 1/22

6:55 pm-10:10 pm

Nonstop3h 15m

Seattle/Tacoma Intl

Mon 1/26

3:21 pm-6:00 pm

Nonstop2h 39m

$119

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Fri 1/16

1:45 pm-4:57 pm

Nonstop3h 12m

Seattle/Tacoma Intl

Sun 1/18

7:10 am-10:02 am

Nonstop2h 52m

$119

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Mon 1/26

3:25 pm-6:40 pm

Nonstop3h 15m

Seattle/Tacoma Intl

Sun 2/1

7:55 pm-10:42 pm

Nonstop2h 47m

$119

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Mon 1/26

1:45 pm-5:00 pm

Nonstop3h 15m

Seattle/Tacoma Intl

Sat 1/31

1:50 pm-4:30 pm

Nonstop2h 40m

$119

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Sat 1/10

7:00 am-10:15 am

Nonstop3h 15m

Seattle/Tacoma Intl

Sun 1/11

7:10 am-10:02 am

Nonstop2h 52m

$119

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Thu 1/8

7:00 am-10:15 am

Nonstop3h 15m

Seattle/Tacoma Intl

Sun 1/11

7:10 am-10:02 am

Nonstop2h 52m

$119

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Sat 1/31

6:45 am-11:55 am

1 stop5h 10m

Seattle/Tacoma Intl

Tue 2/3

1:20 pm-6:05 pm

1 stop4h 45m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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, April is the cheapest month in which you can book a flight from San Diego to State of Washington (average of $48). Flying from San Diego to State of Washington in July is currently the most expensive (average of $118). 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 December 18, 2025.

It’s optimal to fly from San Diego to State of Washington at noon. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from San Diego to State of Washington?

Use this chart to determine the cheapest time to fly round-trip from San Diego to Washington. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Diego to State of Washington flight should consider departing on Tuesday 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.

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 December 18, 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
11,478 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,478 reviews
Alaska Airlines
8.0
Very good
11,478 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,250 reviews
Alaska Airlines
8.0
Very good
11,478 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,478 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Hawaiian Airlines
7.8
Good
2,820 reviews
Alaska Airlines
8.0
Very good
11,478 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Frontier
5.8
Fair
3,081 reviews
Alaska Airlines
8.0
Very good
11,478 reviews

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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 110 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 59m. 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 Allegiant Air, with whom users have recently found tickets for as low as $45. However, be on the lookout for offers from Spirit Airlines and Delta, 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 - Everett Paine Field or San Diego - Portland 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 Air France (95%), Virgin Atlantic (89%) or American Airlines (87%) 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 $884 for a flight from San Diego to State of Washington. The cheapest flight overall is $69 while the most popular route, (San Diego - Seattle/Tacoma Intl) is currently priced at $109.

  • 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, April is the cheapest month in which you can book a flight from San Diego to State of Washington (average of $48). Flying from San Diego to State of Washington in July is currently the most expensive (average of $118). 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

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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$64Average$146FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$98Average$148FlexibilityNo cancel feeOn-time88%
FrontierCheapest$103Average$194FlexibilityNo cancel feeOn-time62%
DeltaCheapest$137Average$294FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$141Average$342FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$147Average$386FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$156Average$304FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$216Average$358FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$225Average$411FlexibilityNo cancel feeOn-time71%

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