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$61+ Cheap flights from Seattle to San Diego (SEA - SAN)

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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAN
Dec 28 — Jan 41
Sat 12/28
Sat 1/4
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to San Diego are usually found in January or September, booked 80 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from Seattle to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San Diego (SAN). 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 December 23, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$127
(FlightHub)

One-way from

$61
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$348
Provider with most accurate pricing for Seattle/Tacoma Intl-San Diego flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Diego flights.
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From Seattle/Tacoma Intl to San Diego
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One-way flight from Seattle/Tacoma Intl to San Diego
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High demand for flights, 4% potential price rise
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Best time to find cheap flights, 3% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Seattle to San Diego

Cheapest flights from Seattle to San Diego
Explore the most affordable flight options available from Seattle to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2024.

This Mytrip deal was found by Cheapflights users on 12/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/309:36 pmSEA - SAN
1 stop26h 18mMultiple Airlines
Thu 1/95:01 pmSAN - SEA
1 stop7h 18mMultiple Airlines
Deal found 12/21$182
This Mytrip deal was found by Cheapflights users on 12/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/309:36 pmSEA - SAN
1 stop26h 18mFrontier
Fri 1/103:07 pmSAN - SEA
1 stop5h 43mFrontier
Deal found 12/21$214
This Mytrip deal was found by Cheapflights users on 12/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/302:16 pmSEA - SAN
1 stop7h 56mSpirit Airlines
Thu 1/99:53 amSAN - SEA
2 stops14h 26mSpirit Airlines
Deal found 12/21$312
This Delta deal was found by Cheapflights users on 12/23. 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 12/3111:39 amSEA - SAN
Nonstop2h 58mDelta
Tue 1/217:20 amSAN - SEA
Nonstop3h 15mDelta
Deal found 12/23$317
This Alaska Airlines deal was found by Cheapflights users on 12/23. 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 12/3112:04 pmSEA - SAN
Nonstop2h 47mAlaska Airlines
Tue 1/218:02 amSAN - SEA
1 stop8h 36mAlaska Airlines
Deal found 12/23$326
This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/253:11 pmSEA - SAN
1 stop5h 29mUnited Airlines
Tue 1/76:15 amSAN - SEA
1 stop7h 17mUnited Airlines
Deal found 12/22$530
This American Airlines deal was found by Cheapflights users on 12/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/286:57 pmSEA - SAN
Nonstop2h 48mAmerican Airlines
Fri 1/108:30 amSAN - SEA
1 stop5h 32mAmerican Airlines
Deal found 12/22$557
This Southwest deal was found by Cheapflights users on 12/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/275:00 amSEA - SAN
1 stop5h 45mSouthwest
Sun 12/295:35 pmSAN - SEA
1 stop6h 35mSouthwest
Deal found 12/21$571

Find flights from Seattle to San Diego within your budget

Customize your flight search to find flights from Seattle to San Diego 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 23, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Sat 1/18

7:10 am-12:55 pm

1 stop5h 45m

San Diego

Sun 1/19

6:25 am-3:45 pm

1 stop9h 20m

$127

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Thu 1/30

12:10 pm-6:58 pm

1 stop6h 48m

San Diego

Fri 1/31

3:07 pm-8:52 pm

1 stop5h 45m

$129

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Wed 1/8

2:16 pm-8:58 am

1 stop18h 42m

San Diego

Mon 1/13

5:01 pm-12:19 am

1 stop7h 18m

$136

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Wed 2/5

9:35 am-12:30 pm

Nonstop2h 55m

San Diego

Wed 2/12

1:25 pm-4:41 pm

Nonstop3h 16m

$137

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Thu 2/6

9:16 pm-11:59 pm

Nonstop2h 43m

San Diego

Tue 2/11

6:52 pm-9:59 pm

Nonstop3h 07m

$140

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Thu 4/17

7:15 am-1:46 pm

2 stops6h 31m

San Diego

Thu 4/17

6:00 pm-1:38 am

1 stop7h 38m

$235

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Mon 2/24

11:23 am-7:18 pm

1 stop7h 55m

$61

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Tue 1/21

9:45 am-3:26 pm

1 stop5h 41m

$62

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Tue 1/21

9:35 am-12:30 pm

Nonstop2h 55m

$69

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Fri 1/31

9:16 pm-11:59 pm

Nonstop2h 43m

$77

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 14 results
1
2

Compare providers for flights from Seattle to San Diego

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 Seattle to San Diego in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice 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 Seattle-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-San Diego 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 Seattle-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Seattle to San Diego flights

Find out what our experts recommend to make the most of your Seattle to San Diego trip
Airlines
Delta

Delta offers free Wi-Fi for SkyMiles members, perfect for staying connected during flights.


Delta's Comfort+ seats provide extra legroom and early boarding, enhancing short-haul comfort.

Read more about Deltaby Harriet Baskas
Alaska Airlines

Alaska's Premium Class offers extra legroom and free cocktails, ideal for a short flight.


Alaska's Wi-Fi is a flat fee, great for staying productive on short flights.

Read more about Alaska Airlinesby Robert Schrader
Airports
SEA

Use SEA Spot Saver to book security screening appointments in advance, reducing wait times for non-expedited passengers.

Read more about SEAby Brandon Schultz
SAN

For a budget-friendly option, take the free San Diego Flyer shuttle to the Old Town Transit Center from SAN.

Read more about SANby Blane Bachelor
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on Delta

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon travels every week and makes friends with stray cats wherever he goes. Dogs, too... he once brought one home to the US from the Amalfi Coast. He’s written 6 books, visited 6 continents (still waiting on Antarctica), and would eat ice cream 6 times a day if he could. He lives in Brooklyn, New York, with his partner and three cats.

Read more

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.

Best time to book a flight from Seattle to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Seattle 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 Seattle to San Diego

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to San Diego. Price data was last updated on December 20, 2024.

To ensure you get the cheapest price possible for a flight from Seattle to San Diego, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Seattle to San Diego (average of $286). Flying from Seattle to San Diego in March is currently the most expensive (average of $366). 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 SEA to SAN?

Find hourly flight availability from Seattle to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2024.

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

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

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

Travelers seeking maximum savings on their Seattle to San Diego flight should consider departing on Tuesday evenings 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 Seattle to San Diego

Explore weekly flight availability from Seattle to San Diego. 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 December 23, 2024.

The most flights from SEA to SAN are scheduled on a Monday (47 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (26 on average).

Rainfall in San Diego by month

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

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

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

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated December 23, 2024.
Read through reviews of airlines operating flights from Seattle to San Diego, such as Alaska Airlines, United Airlines and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,780 reviews

Food

7.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,780 reviews
Southwest
8.1
Very good
4,780 reviews

Food

7.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,549 reviews
Southwest
8.1
Very good
4,780 reviews

Food

7.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,588 reviews
Southwest
8.1
Very good
4,780 reviews

Food

7.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,022 reviews
Southwest
8.1
Very good
4,780 reviews

Food

7.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,780 reviews

Food

7.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Seattle to San Diego. 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 Seattle to San Diego?

    Booking a flight from Seattle/Tacoma Intl (SEA) to San Diego (SAN) is your only option if you wish to fly from Seattle to San Diego. On a typical day, there are 37 flights from Seattle/Tacoma Intl to San Diego, all of which are around 2h 44m for a nonstop flight. You can also purchase a plane ticket from 7 airlines when you book a flight from Seattle/Tacoma Intl to San Diego.

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

    The Seattle/Tacoma Intl to San Diego flight path was viewed by 72 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    According to our current data, Frontier ($128), Alaska Airlines ($137), and Spirit Airlines ($140) offers the cheapest pricing from Seattle to San Diego. You may be able to fly from Seattle to San Diego for 49% less than the average price by searching for these airlines.

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

    One-way options have recently been found by users for as low as $61 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $62 and Delta from $69 one-way.

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

    The top 3 most reliable airlines when flying from Seattle to San Diego are Horizon Air (100%), China Airlines (89%) and LATAM Airlines (89%).

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

    On average you can expect to pay $428 for a flight from Seattle to San Diego. The cheapest flight overall is $55 while the most popular route, (Seattle/Tacoma Intl - San Diego) is currently priced at $94.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Seattle to San Diego (average of $286). Flying from Seattle to San Diego in March is currently the most expensive (average of $366). 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 Seattle to San Diego

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Top 6 airlines flying from Seattle to San Diego

Discover the top 6 airlines that operate flights from Seattle to San Diego. 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 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$75Average$171FlexibilityNo cancel feeOn-time65%
FrontierCheapest$92Average$179FlexibilityNo cancel feeOn-time62%
DeltaCheapest$117Average$254FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$126Average$288FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$173Average$376FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$176Average$339FlexibilityNo cancel feeOn-time69%
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