Seattle

$66+ Cheap flights from San Diego to Seattle (SAN - SEA)

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SEA
Jan 22 — Jan 291
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The best prices from San Diego to Seattle/Tacoma Intl are usually found in January or October, booked 34 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from San Diego to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$127
(Delta)

One-way from

$66
(FlightHub)

Popular in

July

Cheapest in

January

Average price

$176
Provider with most accurate pricing for San Diego-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for San Diego-Seattle/Tacoma Intl flights.
From San Diego to Seattle/Tacoma Intl
One-way flight from San Diego to Seattle/Tacoma Intl
High demand for flights, 17% potential price rise
Best time to find cheap flights, 2% potential price drop
Average for round-trip flights in January 2025

Find flight deals from San Diego to Seattle

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

This Alaska Airlines deal was found by Cheapflights users on 1/16. 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 2/127:00 amSAN - SEA
Nonstop3h 10mAlaska Airlines
Wed 2/197:50 pmSEA - SAN
Nonstop2h 47mAlaska Airlines
Deal found 1/16$127
This Kiwi.com deal was found by Cheapflights users on 1/16. 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 1/2912:55 pmSAN - SEA
1 stop20h 45mFrontier
Mon 2/39:40 amSEA - SAN
1 stop9h 18mFrontier
Deal found 1/16$128
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/147:41 pmSAN - SEA
1 stop4h 44mSpirit Airlines
Tue 2/185:15 amSEA - SAN
1 stop8h 46mSpirit Airlines
Deal found 1/17$129
This Travelocity deal was found by Cheapflights users on 1/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/157:41 pmSAN - SEA
1 stop4h 44mMultiple Airlines
Sat 2/226:27 pmSEA - SAN
Nonstop2h 47mMultiple Airlines
Deal found 1/16$131
This Delta deal was found by Cheapflights users on 1/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/156:55 pmSAN - SEA
Nonstop3h 12mDelta
Wed 4/167:20 amSEA - SAN
Nonstop2h 50mDelta
Deal found 1/16$157
This United Airlines deal was found by Cheapflights users on 1/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/191:43 pmSAN - SEA
1 stop4h 48mUnited Airlines
Thu 4/246:15 amSEA - SAN
1 stop7h 31mUnited Airlines
Deal found 1/15$202

Find flights from San Diego to Seattle within your budget

Customize your flight search to find flights from San Diego to Seattle 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 January 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Tue 2/11

1:25 pm-4:41 pm

Nonstop3h 16m

Seattle/Tacoma Intl

Wed 2/19

5:45 pm-8:31 pm

Nonstop2h 46m

$127

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Sat 2/1

3:58 pm-3:45 pm

1 stop23h 47m

Seattle/Tacoma Intl

Mon 2/3

9:40 am-6:58 pm

1 stop9h 18m

$128

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Mon 2/3

3:07 pm-8:52 pm

1 stop5h 45m

Seattle/Tacoma Intl

Mon 2/10

9:16 pm-11:59 pm

Nonstop2h 43m

$129

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Thu 2/6

5:01 pm-12:19 am

1 stop7h 18m

Seattle/Tacoma Intl

Mon 2/10

5:45 am-6:31 pm

2 stops12h 46m

$133

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Tue 2/4

1:34 pm-9:15 am

1 stop19h 41m

Seattle/Tacoma Intl

Sat 2/8

7:50 pm-10:33 pm

Nonstop2h 43m

$170

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Sat 4/19

1:43 pm-6:31 pm

1 stop4h 48m

Seattle/Tacoma Intl

Thu 4/24

6:15 am-1:46 pm

1 stop7h 31m

$202

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Fri 2/21

6:15 am-12:25 am

1 stop18h 10m

$66

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Sat 2/22

6:25 am-12:46 pm

1 stop6h 21m

$75

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Tue 2/4

1:25 pm-4:41 pm

Nonstop3h 16m

$79

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

Tue 3/18

4:29 pm-11:00 pm

1 stop6h 31m

$88

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 15 results
1
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Compare providers for flights from San Diego to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Seattle in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars
KAYAKPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Diego-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Diego to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle 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.

Travel insights for flights from San Diego to Seattle

Get recent, data-driven insights about flights from San Diego to Seattle including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from San Diego to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Seattle. Price data was last updated on January 10, 2025.

The price you pay for your flight from San Diego to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 34 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Diego to Seattle?

Currently, January is the cheapest month in which you can book a flight from San Diego to Seattle (average of $238). Flying from San Diego to Seattle in July is currently the most expensive (average of $411). 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 SEA?

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

It’s typically best to fly out from San Diego to Seattle in the evening. Doing so could potentially save you 6% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from San Diego to Seattle?

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

Travelers seeking maximum savings on their San Diego to Seattle flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday 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 Seattle

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

The most flights from SAN to SEA are scheduled on a Wednesday (38 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated January 17, 2025.
Read through reviews of airlines operating flights from San Diego to Seattle, such as Alaska Airlines, United Airlines and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
4,659 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

8.1
Very good
4,659 reviews
8.1
Very good
4,659 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

8.0
Very good
9,681 reviews
8.1
Very good
4,659 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

8.0
Very good
8,511 reviews
8.1
Very good
4,659 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

7.4
Good
8,965 reviews
8.1
Very good
4,659 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

6.3
Okay
8,098 reviews
8.1
Very good
4,659 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

Reviews

1 / 10

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from San Diego to Seattle?

    If you book a flight from San Diego to Seattle, you will be flying from San Diego to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from San Diego (SAN) take 2h 56m for a nonstop flight. There are 26 flights from San Diego to Seattle per day from 7 airlines.

  • How popular is this San Diego to Seattle flight route?

  • What are the cheapest airlines flying from San Diego to Seattle round-trip?

    Flying on Delta is currently your cheapest option to Seattle, with prices starting at $127. Additional round-trip tickets that might be worth considering are offered by Frontier and Spirit Airlines, with the lowest prices starting at $128 and $133, respectively. Delta is priced at 45% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from San Diego to Seattle one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $66. Users have also found prices from $68 and $79 on Frontier and Delta, respectively.

  • What are the most reliable airlines from San Diego to Seattle?

    Consider Icelandair (89%), KLM (84%) or WestJet (83%) when booking your flight. These represent the most reliable airlines when flying from San Diego to Seattle.

  • What are the cheapest flights from San Diego to Seattle?

    While on average a flight from San Diego to Seattle is generally $594, our data shows the cheapest flight currently is $76. When looking at the most popular route, (San Diego - Seattle/Tacoma Intl), you can expect to pay $96 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego to Seattle 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 Seattle?

    Currently, January is the cheapest month in which you can book a flight from San Diego to Seattle (average of $238). Flying from San Diego to Seattle in July is currently the most expensive (average of $411). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Marysville
Centralia
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Diego to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from San Diego to Seattle

Discover the top 6 airlines that operate flights from San Diego to Seattle. 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 January 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$74Average$169FlexibilityNo cancel feeOn-time65%
FrontierCheapest$92Average$156FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$113Average$376FlexibilityNo cancel feeOn-time71%
DeltaCheapest$117Average$243FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$129Average$271FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$266Average$511FlexibilityNo cancel feeOn-time69%
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