Seattle

$70+ 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 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SEA
feb. 16 — feb. 231
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The best prices from San Diego to Seattle/Tacoma Intl are usually found in January or October, booked 55 days in advance, depart on a Friday or Thursday 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 febrero 11, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$129
(Mytrip)

One-way from

$70
(FlightHub)

Popular in

July

Cheapest in

January

Average price

$247

Good round-trip deal

$244 or less

Good one-way deal

$130 or less
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
Highest demand for flights based on searches. 15% potential increase in price ($42 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in February 2025
Price to beat on a round-trip flight from San Diego to Seattle/Tacoma Intl.
Price to beat on a one-way flight from San Diego to Seattle/Tacoma Intl.

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 febrero 11, 2025.

This Mytrip deal was found by Cheapflights users on 2/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/226:45 amSAN - SEA
2 stops12h 11mSpirit Airlines
mar. 4/2912:11 pmSEA - SAN
1 stop7h 19mSpirit Airlines
Deal found 2/9$129
This Frontier deal was found by Cheapflights users on 2/10. 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.
mar. 2/258:10 amSAN - SEA
1 stop8h 50mFrontier
lun. 3/172:02 pmSEA - SAN
1 stop10h 18mFrontier
Deal found 2/10$130
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
mar. 3/116:15 amSAN - SEA
1 stop5h 31mMultiple Airlines
jue. 3/132:02 pmSEA - SAN
1 stop10h 18mMultiple Airlines
Deal found 2/9$132
This Delta deal was found by Cheapflights users on 2/10. 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.
mar. 4/157:20 amSAN - SEA
Nonstop3h 12mDelta
mié. 4/2311:40 amSEA - SAN
Nonstop2h 53mDelta
Deal found 2/10$177
This Kiwi.com deal was found by Cheapflights users on 2/10. 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. 3/136:15 amSAN - SEA
1 stop5h 03mHawaiian Airlines
dom. 3/166:25 amSEA - SAN
Nonstop2h 46mHawaiian Airlines
Deal found 2/10$185
This Alaska Airlines deal was found by Cheapflights users on 2/10. 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.
mié. 4/99:30 amSAN - SEA
Nonstop3h 10mAlaska Airlines
jue. 4/249:15 pmSEA - SAN
Nonstop2h 44mAlaska Airlines
Deal found 2/10$187
This United Airlines deal was found by Cheapflights users on 2/10. 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.
vie. 3/147:24 pmSAN - SEA
1 stop5h 31mUnited Airlines
dom. 3/165:00 amSEA - SAN
1 stop5h 04mUnited Airlines
Deal found 2/10$217
This Southwest deal was found by Cheapflights users on 2/10. 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. 3/136:30 pmSAN - SEA
1 stop4h 25mSouthwest
dom. 3/165:25 amSEA - SAN
1 stop7h 50mSouthwest
Deal found 2/10$242

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 febrero 11, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

mar. 4/22

6:45 am-6:56 pm

2 stops12h 11m

Seattle/Tacoma Intl

mar. 4/29

12:11 pm-7:30 pm

1 stop7h 19m

$129

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

mar. 2/25

8:10 am-5:00 pm

1 stop8h 50m

Seattle/Tacoma Intl

lun. 3/17

2:02 pm-12:20 am

1 stop10h 18m

$130

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

mar. 3/11

6:15 am-11:46 am

1 stop5h 31m

Seattle/Tacoma Intl

jue. 3/13

2:02 pm-12:20 am

1 stop10h 18m

$132

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

mar. 4/15

7:20 am-10:32 am

Nonstop3h 12m

Seattle/Tacoma Intl

mié. 4/23

11:40 am-2:33 pm

Nonstop2h 53m

$177

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

jue. 3/13

6:15 am-11:18 am

1 stop5h 03m

Seattle/Tacoma Intl

dom. 3/16

6:25 am-9:11 am

Nonstop2h 46m

$185

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

mié. 4/9

9:30 am-12:40 pm

Nonstop3h 10m

Seattle/Tacoma Intl

jue. 4/24

9:15 pm-11:59 pm

Nonstop2h 44m

$187

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

vie. 3/14

7:24 pm-12:55 am

1 stop5h 31m

Seattle/Tacoma Intl

dom. 3/16

5:00 am-10:04 am

1 stop5h 04m

$217

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

jue. 3/13

6:30 pm-10:55 pm

1 stop4h 25m

Seattle/Tacoma Intl

dom. 3/16

5:25 am-1:15 pm

1 stop7h 50m

$242

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

jue. 3/27

8:07 pm-8:43 am

1 stop12h 36m

$70

San DiegoSeattle

SAN - SEA

SANSEA

San Diego

sáb. 3/1

6:25 am-12:46 pm

1 stop6h 21m

$75

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 17 results
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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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust 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 February 7, 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 55 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 febrero 11, 2025.

It’s typically best to fly out from San Diego to Seattle in the evening. Doing so could potentially save you 32% on the flight price compared to flying in the morning, 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 February 10, 2025.

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. Monday mornings 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 febrero 11, 2025.

The most flights from SAN to SEA are scheduled on a Tuesday (40 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (7 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 febrero 11, 2025.
Read through reviews of airlines operating flights from San Diego to Seattle, such as Southwest, Alaska Airlines and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Comfort

8.1

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

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.

Boarding

8.2

Comfort

8.1

Crew

8.7

Entertainment

7.6

Food

7.1

Overall

8.1

Reviews

1 / 20