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Cheap flights from Seattle to San Diego from C$ 114

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 19/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAN
26 Jan — 2 Feb1
1 adult

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 21 January 2025.

Round-trip from

C$ 197

One-way from

C$ 114

Popular in

December

Cheapest in

September

Average price

C$ 311

Good round-trip deal

C$ 218 or less
Delta
  • Delta
  • 23/2-1/3
  • Nonstop
  • 6h 10m total
  • Seattle to San Diego
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Delta
  • Delta
  • 19/2
  • Nonstop
  • 2h 55m total
  • Seattle to San Diego
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to San Diego.
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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 21 January 2025.

Sun 23/29:35 a.m.SEA - SAN
Nonstop2h 55mDelta
Sat 1/37:20 a.m.SAN - SEA
Nonstop3h 15mDelta
Deal found 21/1C$ 197
Mon 31/39:15 p.m.SEA - SAN
Nonstop2h 44mAlaska Airlines
Mon 7/48:21 p.m.SAN - SEA
Nonstop3h 09mAlaska Airlines
Deal found 20/1C$ 206
Fri 7/23:15 p.m.SEA - SAN
1 stop8h 37mFrontier
Thu 13/28:55 a.m.SAN - SEA
1 stop5h 27mFrontier
Deal found 20/1C$ 209
Tue 8/45:10 p.m.SEA - SAN
1 stop4h 20mSouthwest
Tue 15/46:00 p.m.SAN - SEA
1 stop4h 30mSouthwest
Deal found 21/1C$ 248
Thu 20/35:00 a.m.SEA - SAN
1 stop5h 04mUnited Airlines
Mon 24/36:04 p.m.SAN - SEA
1 stop6h 51mUnited Airlines
Deal found 21/1C$ 256
Fri 7/25:55 p.m.SEA - SAN
3 stops24h 04mSpirit Airlines
Thu 13/29:56 a.m.SAN - SEA
1 stop14h 29mSpirit Airlines
Deal found 20/1C$ 295
Wed 22/19:45 a.m.SEA - SAN
1 stop5h 41mMultiple Airlines
Sat 25/110:40 a.m.SAN - SEA
1 stop23h 00mMultiple Airlines
Deal found 21/1C$ 446

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 629,999 searches. Data last updated 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Sun 23/2

9:35 a.m.-12:30 p.m.

Nonstop2h 55m

San Diego

Sat 1/3

7:20 a.m.-10:35 a.m.

Nonstop3h 15m

C$ 197

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Mon 31/3

9:15 p.m.-11:59 p.m.

Nonstop2h 44m

San Diego

Mon 7/4

8:21 p.m.-11:30 p.m.

Nonstop3h 09m

C$ 206

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Fri 7/2

3:15 p.m.-11:52 p.m.

1 stop8h 37m

San Diego

Thu 13/2

8:55 a.m.-2:22 p.m.

1 stop5h 27m

C$ 209

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Tue 8/4

5:10 p.m.-9:30 p.m.

1 stop4h 20m

San Diego

Tue 15/4

6:00 p.m.-10:30 p.m.

1 stop4h 30m

C$ 248

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Thu 20/3

5:00 a.m.-10:04 a.m.

1 stop5h 04m

San Diego

Mon 24/3

6:04 p.m.-12:55 a.m.

1 stop6h 51m

C$ 256

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Fri 7/2

5:55 p.m.-5:59 p.m.

3 stops24h 04m

San Diego

Thu 13/2

9:56 a.m.-12:25 a.m.

1 stop14h 29m

C$ 295

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Fri 31/1

5:45 a.m.-4:06 p.m.

1 stop10h 21m

San Diego

Mon 3/2

7:00 a.m.-10:10 a.m.

Nonstop3h 10m

C$ 509

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Wed 19/2

9:35 a.m.-12:30 p.m.

Nonstop2h 55m

C$ 114

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Tue 4/2

9:45 a.m.-3:26 p.m.

1 stop5h 41m

C$ 118

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Tue 25/2

9:20 a.m.-7:53 p.m.

2 stops10h 33m

C$ 135

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

Showing 1-10 of 14 results
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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 17 January 2025.

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to San Diego (average of C$ 322). Flying from Seattle to San Diego in March is currently the most expensive (average of C$ 568). 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 21 January 2025.

It’s typically best to fly out from Seattle to San Diego in the morning. Doing so could potentially save you 33% on the flight price compared to flying at noon, which is usually more expensive.

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 16 December 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 afternoons 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 21 January 2025.

The most flights from SEA to SAN are scheduled on a Tuesday (47 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (19 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 - 58.0 mm per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

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 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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 21 January 2025.
Read reviews from past customers who have flown Delta, United Airlines and Alaska Airlines from Seattle to San Diego. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews
Check prices

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

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
4,662 reviews
Southwest
8.1
Very good
4,662 reviews
Check prices

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

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
9,706 reviews
Southwest
8.1
Very good
4,662 reviews
Check prices

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

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
8,521 reviews
Southwest
8.1
Very good
4,662 reviews
Check prices

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

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
8,985 reviews
Southwest
8.1
Very good
4,662 reviews
Check prices

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

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

Sun Country Air
7.0
Good
386 reviews
Southwest
8.1
Very good
4,662 reviews
Check prices

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

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?

    To fly from Seattle to San Diego, you need to book a flight from Seattle/Tacoma Intl (SEA) to San Diego (SAN). Nonstop flights to San Diego from Seattle/Tacoma Intl take 2h 49m on average. When it comes time to book airfare, you have a few options: there are 30 outbound flights from Seattle/Tacoma Intl to San Diego offered by 3 different airlines.

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

    Flights from Seattle/Tacoma Intl to San Diego have been viewed 93 times in the past calendar month.

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

    Delta, at C$ 197, was found to be the cheapest airline from Seattle to San Diego.Alternate airlines to your destination round-trip include Alaska Airlines and Frontier. Delta is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • 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 C$ 114 on Delta. Other airlines that offer cheap prices include Spirit Airlines from C$ 118 and United Airlines from C$ 135 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Seattle to San Diego consider choosing Horizon Air (100%), ITA Airways (83%) or Aeromexico (83%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from Seattle to San Diego is C$ 156. On average you can expect to pay C$ 283. The most popular route, (Seattle/Tacoma Intl - San Diego), can usually be booked for C$ 214.

  • 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, January is the cheapest month in which you can book a flight from Seattle to San Diego (average of C$ 322). Flying from Seattle to San Diego in March is currently the most expensive (average of C$ 568). 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 Seattle to San Diego

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Top 3 airlines flying from Seattle to San Diego

Discover the top 3 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 629,999 searches. Data last updated 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 155AverageC$ 282FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FrontierCheapestC$ 159AverageC$ 307FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Alaska AirlinesCheapestC$ 192AverageC$ 356FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to San Diego?

Deals for Seattle to San Diego flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Seattle to San Diego?

Cheapflights simply makes it quick and affordable to book flights from Seattle to San Diego by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Seattle to San Diego with no change fees?

Certainly. Search results for flights to San Diego from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seattle to San Diego become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Diego from Seattle today and book when prices fit your budget.

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