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$67+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SEA
feb. 19 — feb. 261
jue. 2/19
jue. 2/26
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 enero 20, 2026.

This Southwest deal was found by Cheapflights users on 1/20. 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.
jue. 2/193:30 pm
SAN
-
SEA
1 stop7h 00m
Southwest
jue. 2/2611:35 am
SEA
-
SAN
1 stop5h 25m
Southwest
Deal found 1/20$119
This SmartFares deal was found by Cheapflights users on 1/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/248:26 pm
SAN
-
SEA
Nonstop3h 14m
Hawaiian Airlines
sáb. 2/287:10 am
SEA
-
SAN
Nonstop2h 54m
Hawaiian Airlines
Deal found 1/17$122
This Southwest deal was found by Cheapflights users on 1/20. 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.
sáb. 2/287:30 am
SAN
-
SEA
1 stop5h 40m
Southwest
sáb. 2/282:30 pm
SEA
-
SAN
1 stop8h 25m
Southwest
Deal found 1/20$125
This Kiwi.com deal was found by Cheapflights users on 1/18. 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.
jue. 2/266:25 am
SAN
-
SEA
1 stop25h 48m
Frontier
sáb. 2/281:16 pm
SEA
-
SAN
1 stop10h 52m
Frontier
Deal found 1/18$128
This Kiwi.com deal was found by Cheapflights users on 1/18. 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.
sáb. 2/148:00 am
SAN
-
SEA
1 stop24h 58m
Frontier
sáb. 2/211:51 pm
SEA
-
SAN
1 stop6h 02m
Frontier
Deal found 1/18$130
This SmartFares deal was found by Cheapflights users on 1/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/47:26 pm
SAN
-
SEA
Nonstop3h 13m
Alaska Airlines
mié. 3/113:40 pm
SEA
-
SAN
Nonstop2h 50m
Alaska Airlines
Deal found 1/17$135
This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
mié. 4/16:25 am
SAN
-
SEA
1 stop29h 12m
Frontier
dom. 4/510:25 pm
SEA
-
SAN
1 stop8h 56m
Frontier
Deal found 1/20$136
This Kiwi.com deal was found by Cheapflights users on 1/18. 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.
jue. 2/266:25 am
SAN
-
SEA
1 stop25h 48m
Frontier
lun. 3/210:06 am
SEA
-
SAN
1 stop13h 41m
Frontier
Deal found 1/18$137
This Delta deal was found by Cheapflights users on 1/19. 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.
jue. 2/2610:59 am
SAN
-
SEA
Nonstop3h 16m
Delta
dom. 3/17:15 am
SEA
-
SAN
Nonstop2h 49m
Delta
Deal found 1/19$139
This Delta deal was found by Cheapflights users on 1/18. 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.
jue. 2/263:25 pm
SAN
-
SEA
Nonstop3h 15m
Delta
lun. 3/27:35 pm
SEA
-
SAN
Nonstop2h 45m
Delta
Deal found 1/18$140
This Kiwi.com deal was found by Cheapflights users on 1/18. 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.
vie. 3/204:14 pm
SAN
-
SEA
1 stop28h 49m
Frontier
mié. 3/2510:08 pm
SEA
-
SAN
1 stop15h 57m
Frontier
Deal found 1/18$143
This Southwest deal was found by Cheapflights users on 1/19. 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.
mié. 2/253:40 pm
SAN
-
GEG
1 stop5h 10m
Southwest
mié. 3/42:10 pm
GEG
-
SAN
1 stop6h 40m
Southwest
Deal found 1/19$157

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 enero 20, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$122
(SmartFares)

One-way from

$67
(Trip.com)

Popular in

July

Cheapest in

February

Average price

$219

Good round-trip deal

$176 or less

Good one-way deal

$117 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. 9% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 enero 20, 2026.
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

vie. 3/6

7:20 am-10:36 am

Nonstop3h 16m

Seattle/Tacoma Intl

dom. 3/8

7:20 am-10:16 am

Nonstop2h 56m

$139

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

jue. 2/26

8:26 pm-11:40 pm

Nonstop3h 14m

Seattle/Tacoma Intl

sáb. 2/28

6:59 pm-9:49 pm

Nonstop2h 50m

$139

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

jue. 2/26

1:40 pm-4:55 pm

Nonstop3h 15m

Seattle/Tacoma Intl

jue. 3/5

3:15 pm-5:50 pm

Nonstop2h 35m

$139

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

jue. 3/19

7:30 am-10:40 am

Nonstop3h 10m

Seattle/Tacoma Intl

mié. 3/25

7:35 pm-10:28 pm

Nonstop2h 53m

$139

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

mié. 3/18

11:15 am-2:32 pm

Nonstop3h 17m

Seattle/Tacoma Intl

lun. 3/23

7:20 am-10:17 am

Nonstop2h 57m

$139

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

vie. 2/27

3:25 pm-6:40 pm

Nonstop3h 15m

Seattle/Tacoma Intl

lun. 3/2

9:50 am-12:45 pm

Nonstop2h 55m

$139

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

sáb. 2/14

5:25 pm-8:40 pm

Nonstop3h 15m

Seattle/Tacoma Intl

sáb. 2/21

3:15 pm-5:50 pm

Nonstop2h 35m

$139

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

mié. 2/25

3:40 pm-8:50 pm

1 stop5h 10m

Spokane

mié. 3/4

2:10 pm-8:50 pm

1 stop6h 40m

$157

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

sáb. 3/7

9:45 am-4:10 pm

1 stop6h 25m

Spokane

sáb. 3/14

5:00 pm-9:55 pm

1 stop4h 55m

$157

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

sáb. 3/21

6:15 am-9:27 am

Nonstop3h 12m

Seattle/Tacoma Intl

lun. 3/30

9:10 pm-11:58 pm

Nonstop2h 48m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

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 enero 20, 2026.

It’s optimal to fly from San Diego to State of Washington in the morning. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight in the evening.

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 January 17, 2026.

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. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 enero 20, 2026.

The most flights from SAN to USWA are scheduled on a Monday (47 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (17 on average).

How much does it cost to fly round-trip from San Diego to State of Washington?

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 enero 20, 2026.
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
11,764 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.1

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
11,764 reviews
Alaska Airlines
8.0
Very good
11,764 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.1

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
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
11,764 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.1

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
8,085 reviews
Alaska Airlines
8.0
Very good
11,764 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.1

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
2,829 reviews
Alaska Airlines
8.0
Very good
11,764 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.1

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
5.7
Fair
3,056 reviews
Alaska Airlines
8.0
Very good
11,764 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.1

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 101 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 3h 14m. Airlines will cover a distance of 1051 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 (93%), American Airlines (87%) or Delta (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 $834 for a flight from San Diego to State of Washington. The cheapest flight overall is $79 while the most popular route, (San Diego - Seattle/Tacoma Intl) is currently priced at $138.

  • 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.

See more FAQs

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Alternative routes for San Diego to Washington

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Top 8 airlines flying from San Diego to Washington

Discover the top 8 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 enero 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$67Average$155FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$98Average$148FlexibilityNo cancel feeOn-time88%
FrontierCheapest$103Average$192FlexibilityNo cancel feeOn-time62%
DeltaCheapest$119Average$295FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$128Average$341FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$139Average$390FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$156Average$300FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$225Average$431FlexibilityNo cancel feeOn-time71%

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