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$51+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SEA
Nov 21 — Nov 281
Fri 11/21
Fri 11/28
1 adult, Economy
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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 October 22, 2025.

This Southwest deal was found by Cheapflights users on 10/22. 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.
Thu 12/113:15 pmSAN - GEG
1 stop7h 10mSouthwest
Mon 12/155:25 amGEG - SAN
1 stop5h 35mSouthwest
Deal found 10/22$111
This Southwest deal was found by Cheapflights users on 10/20. 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.
Fri 12/53:15 pmSAN - GEG
1 stop7h 10mSouthwest
Mon 12/812:40 pmGEG - SAN
1 stop6h 35mSouthwest
Deal found 10/20$120
This Delta deal was found by Cheapflights users on 10/21. 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 11/136:35 amSAN - GEG
1 stop7h 30mDelta
Mon 11/177:05 amGEG - SAN
1 stop5h 41mDelta
Deal found 10/21$137
This Frontier deal was found by Cheapflights users on 10/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/69:14 amSAN - PAE
1 stop8h 52mFrontier
Fri 11/1412:53 pmPAE - SAN
1 stop10h 57mFrontier
Deal found 10/20$144
This Frontier deal was found by Cheapflights users on 10/21. 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 stop8h 52mFrontier
Mon 11/1712:53 pmPAE - SAN
1 stop10h 57mFrontier
Deal found 10/21$145
This Priceline deal was found by Cheapflights users on 10/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:14 amSAN - PAE
1 stop9h 04mFrontier
Fri 11/712:53 pmPAE - SAN
1 stop10h 57mFrontier
Deal found 10/21$154
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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 12/169:37 pmSAN - SEA
1 stop10h 37mAlaska Airlines
Tue 12/3010:10 pmSEA - SAN
1 stop10h 29mAlaska Airlines
Deal found 10/22$154
This CheapOair deal was found by Cheapflights users on 10/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/910:15 amSAN - PAE
1 stop25h 33mFrontier
Sun 11/165:36 pmPAE - SAN
1 stop18h 59mFrontier
Deal found 10/20$156
This Frontier deal was found by Cheapflights users on 10/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:38 pmSAN - SEA
1 stop11h 40mFrontier
Sun 11/162:22 pmSEA - SAN
1 stop9h 28mFrontier
Deal found 10/20$156
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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 12/118:58 pmSAN - GEG
Nonstop3h 01mAlaska Airlines
Mon 12/157:00 amGEG - SAN
Nonstop3h 00mAlaska Airlines
Deal found 10/22$156
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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 12/244:02 pmSAN - SEA
1 stop6h 08mAlaska Airlines
Wed 12/317:05 amSEA - SAN
1 stop9h 20mAlaska Airlines
Deal found 10/22$157
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
Fri 11/148:59 pmSAN - GEG
Nonstop2h 57mAlaska Airlines
Mon 11/177:00 amGEG - SAN
Nonstop2h 58mAlaska Airlines
Deal found 10/22$157

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 October 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$111
(Southwest)

One-way from

$51
(Southwest)

Popular in

July

Cheapest in

January

Average price

$221

Good round-trip deal

$176 or less

Good one-way deal

$108 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 ($26 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 October 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 October 22, 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

Fri 1/23

4:00 pm-9:40 pm

1 stop5h 40m

Spokane

Sun 1/25

2:45 pm-10:20 pm

1 stop7h 35m

$128

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Fri 1/23

7:27 pm-10:26 pm

Nonstop2h 59m

Spokane

Sun 1/25

7:00 am-9:59 am

Nonstop2h 59m

$136

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Fri 11/14

1:41 pm-9:01 pm

1 stop7h 20m

Spokane

Mon 11/17

3:33 pm-10:47 pm

1 stop7h 14m

$137

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Thu 1/15

5:40 pm-10:45 pm

1 stop5h 05m

Spokane

Mon 1/19

5:05 am-10:10 am

1 stop5h 05m

$137

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Thu 11/13

8:59 pm-11:56 pm

Nonstop2h 57m

Spokane

Tue 11/18

7:00 am-9:58 am

Nonstop2h 58m

$137

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Thu 11/13

7:05 pm-12:10 am

1 stop5h 05m

Spokane

Tue 11/18

3:33 pm-10:47 pm

1 stop7h 14m

$137

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Mon 12/29

8:59 pm-11:59 pm

Nonstop3h 00m

Spokane

Mon 1/5

6:50 am-9:54 am

Nonstop3h 04m

$137

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Sun 2/15

6:15 am-1:00 pm

1 stop6h 45m

Spokane

Sat 2/21

11:15 am-4:34 pm

1 stop5h 19m

$137

San DiegoSpokane

SAN - GEG

SANGEG

San Diego

Sat 11/15

8:59 pm-11:56 pm

Nonstop2h 57m

Spokane

Mon 11/17

7:00 am-9:58 am

Nonstop2h 58m

$137

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Wed 12/10

7:10 am-5:26 pm

1 stop10h 16m

Seattle/Tacoma Intl

Thu 12/18

3:45 pm-9:01 pm

1 stop5h 16m

$154

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

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 October 22, 2025.

It’s optimal to fly from San Diego to State of Washington at noon. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the afternoon.

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.

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 October 22, 2025.

The most flights from SAN to USWA are scheduled on a Wednesday (51 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 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 October 22, 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
11,150 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

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
11,150 reviews
Alaska Airlines
8.0
Very good
11,150 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

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
4,237 reviews
Alaska Airlines
8.0
Very good
11,150 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

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
7.9
Good
7,979 reviews
Alaska Airlines
8.0
Very good
11,150 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

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
2,788 reviews
Alaska Airlines
8.0
Very good
11,150 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

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
3,130 reviews
Alaska Airlines
8.0
Very good
11,150 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

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 123 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 Delta, with whom users have recently found tickets for as low as $69. However, be on the lookout for offers from Alaska Airlines 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 - 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 KLM (96%), Scandinavian Airlines (95%) or WestJet (95%) 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 $860 for a flight from San Diego to State of Washington. The cheapest flight overall is $99 while the most popular route, (San Diego - Seattle/Tacoma Intl) is currently priced at $135.

  • 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 October 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$66Average$163FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$98Average$148FlexibilityNo cancel feeOn-time88%
FrontierCheapest$100Average$179FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$113Average$386FlexibilityNo cancel feeOn-time71%
DeltaCheapest$137Average$307FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$141Average$342FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$148Average$393FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$156Average$305FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$185Average$346FlexibilityNo cancel feeOn-time69%

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