HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Clemente

$74+ Cheap flights from Seattle (SEA) to San Clemente, CA

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LAX
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to San Clemente with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Clemente are usually found in January or March, booked 63 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Seattle to San Clemente

Keep the following information in mind while searching for Seattle to San Clemente flight deals. Data was last updated November 17, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$123
(CheapOair)

One-way from

$74
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$272
Provider with most accurate pricing for Seattle/Tacoma Intl-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Los Angeles flights.
Search Deals
From Seattle/Tacoma Intl to San Clemente
Search Deals
One-way flight from Seattle/Tacoma Intl to San Clemente
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($36 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 November 2025
Search Deals

Find flight deals from Seattle to San Clemente

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

This Expedia deal was found by Cheapflights users on 11/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1312:48 pmSEA - LAX
1 stop18h 54mFrontier
Sat 12/209:15 amLAX - SEA
1 stop8h 02mFrontier
Deal found 11/17$124
This Frontier deal was found by Cheapflights users on 11/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/152:25 pmSEA - LAX
Nonstop2h 45mFrontier
Wed 12/249:36 pmLAX - SEA
Nonstop3h 06mFrontier
Deal found 11/16$129
This CheapOair deal was found by Cheapflights users on 11/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/811:01 amSEA - LAX
1 stop9h 04mFrontier
Fri 12/1210:24 amLAX - SEA
Nonstop3h 06mFrontier
Deal found 11/16$130
This CheapOair deal was found by Cheapflights users on 11/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/612:48 pmSEA - LAX
1 stop18h 54mFrontier
Mon 12/810:24 amLAX - SEA
Nonstop3h 06mFrontier
Deal found 11/17$131
This Expedia deal was found by Cheapflights users on 11/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1012:30 pmSEA - LAX
Nonstop2h 50mMultiple Airlines
Sat 12/1310:24 amLAX - SEA
Nonstop3h 06mMultiple Airlines
Deal found 11/16$132
This Kiwi.com deal was found by Cheapflights users on 11/14. 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.
Sun 12/142:25 pmSEA - LAX
Nonstop2h 45mFrontier
Mon 12/1510:24 amLAX - SEA
Nonstop3h 06mFrontier
Deal found 11/14$133
This Kiwi.com deal was found by Cheapflights users on 11/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/62:25 pmSEA - LAX
Nonstop2h 45mFrontier
Sun 12/148:56 pmLAX - SEA
2 stops17h 49mFrontier
Deal found 11/15$135
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Tue 12/94:59 pmSEA - LAX
Nonstop2h 43mMultiple Airlines
Sat 12/1310:24 amLAX - SEA
Nonstop3h 06mMultiple Airlines
Deal found 11/16$136
This Alaska Airlines deal was found by Cheapflights users on 11/16. 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 12/179:15 pmSEA - LAX
1 stop10h 16mAlaska Airlines
Thu 12/189:55 amLAX - SEA
Nonstop3h 02mAlaska Airlines
Deal found 11/16$137
This CheapOair deal was found by Cheapflights users on 11/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/123:40 pmSEA - LAX
1 stop26h 58mFrontier
Fri 12/199:15 amLAX - SEA
1 stop9h 38mFrontier
Deal found 11/16$138
This Frontier deal was found by Cheapflights users on 11/14. 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.
Mon 12/152:25 pmSEA - LAX
Nonstop2h 45mFrontier
Thu 12/259:36 pmLAX - SEA
Nonstop3h 06mFrontier
Deal found 11/14$139

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to San Clemente 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 November 17, 2025.
Use the filters below to find and compare flights from Seattle to San Clemente that are best for you.

Fly from

Seattle

Fly to

San Clemente

Route

Depart

Return

Price

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 12/16

5:59 pm-8:43 pm

Nonstop2h 44m

Los Angeles

Wed 12/24

7:55 pm-10:54 pm

Nonstop2h 59m

$157

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Wed 12/17

7:05 am-9:58 am

Nonstop2h 53m

Los Angeles

Wed 12/24

7:59 pm-11:02 pm

Nonstop3h 03m

$157

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 2/3

2:02 pm-4:38 pm

Nonstop2h 36m

Los Angeles

Sat 2/7

9:59 am-1:00 pm

Nonstop3h 01m

$157

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 12/13

4:59 pm-7:42 pm

Nonstop2h 43m

Los Angeles

Tue 12/16

7:00 pm-9:59 pm

Nonstop2h 59m

$157

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Wed 12/17

2:05 pm-4:48 pm

Nonstop2h 43m

Los Angeles

Wed 12/24

7:55 pm-10:54 pm

Nonstop2h 59m

$157

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 1/6

11:20 am-6:35 pm

2 stops7h 15m

Los Angeles

Sat 1/10

8:25 am-12:40 pm

1 stop4h 15m

$160

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 12/16

10:59 am-1:49 pm

Nonstop2h 50m

Los Angeles

Thu 12/25

7:59 pm-11:02 pm

Nonstop3h 03m

$167

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 2/10

11:17 am-1:55 pm

Nonstop2h 38m

Los Angeles

Mon 2/16

3:48 pm-6:43 pm

Nonstop2h 55m

$167

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 12/13

9:14 pm-11:59 pm

Nonstop2h 45m

Los Angeles

Mon 12/22

8:59 pm-11:59 pm

Nonstop3h 00m

$167

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Fri 12/12

12:45 pm-3:29 pm

Nonstop2h 44m

Los Angeles

Tue 12/16

7:25 pm-10:23 pm

Nonstop2h 58m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/15

Showing 1-10 of 19 results
1
2

Best time to book a flight from Seattle to San Clemente

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

Cheapflights Insights

Everything you need to know about your flight from Seattle to San Clemente

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to San Clemente. Price data was last updated on November 14, 2025.

The price you pay for your flight from Seattle to San Clemente may vary depending on when you book. For the best chance of a lower fare, look to book 63 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 Seattle to San Clemente?

Currently, January is the cheapest month in which you can book a flight from Seattle to San Clemente (average of $38). Flying from Seattle to San Clemente in July is currently the most expensive (average of $119). 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 CL3?

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

Unlike at noon, when flights are generally more expensive, you can save up to 15% on flights from Seattle to San Clemente by exploring options for tickets in the evening.

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

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

Travelers seeking maximum savings on their Seattle to San Clemente flight should consider departing on Saturday 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 Seattle to San Clemente

Explore weekly flight availability from Seattle to San Clemente. 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 November 17, 2025.

The most flights from SEA to CL3 are scheduled on a Monday (109 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (62 on average).

Reviews of airlines servicing San Clemente

Get insights into the airlines that provide service to San Clemente. 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 Clemente. Reviews last updated November 17, 2025.
Read through reviews of airlines operating flights from Seattle to San Clemente, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,314 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,314 reviews
Alaska Airlines
8.0
Very good
11,314 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,314 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
9,015 reviews
Alaska Airlines
8.0
Very good
11,314 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Spirit Airlines
6.3
Okay
8,146 reviews
Alaska Airlines
8.0
Very good
11,314 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Frontier
5.8
Fair
3,103 reviews
Alaska Airlines
8.0
Very good
11,314 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Related info for your journey

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

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to San Clemente. 8 airlines have flights from Seattle/Tacoma Intl to San Clemente on a regular basis. Booking flights from Seattle/Tacoma Intl to San Clemente should not be difficult; the airport handles an average of 81 outbound flights to San Clemente per day.

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

    This flight path from Seattle/Tacoma Intl to San Clemente was viewed by 316 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 Seattle to San Clemente?

    A quick flight from Seattle to San Clemente can take about 2h 44m. Delta provides one of the quickest options available for as low as $157. The distance between Seattle and San Clemente is about 954 mi. All flights are typically nonstop.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to San Clemente on time: Air China (97%), ITA Airways (97%), China Eastern (96%).

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

    Looking at all options, your cheapest flight can be booked for $66. While the most popular route (Seattle/Tacoma Intl - Los Angeles) can be booked for $70 on average, our data indicates $874 when flying from Seattle to San Clemente.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Seattle to San Clemente (average of $38). Flying from Seattle to San Clemente in July is currently the most expensive (average of $119). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to San Clemente

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Los Angeles flights
Seattle to Las Vegas flights
Seattle to Ontario flights
Seattle to Santa Ana flights
Seattle to San Diego flights
Seattle to San Francisco flights
Portland to Los Angeles flights
Portland to Las Vegas flights
Seattle to San Jose flights
Everett to Las Vegas flights
Seattle to Palm Springs flights
Everett to San Francisco flights
Portland to Ontario flights
Portland to Santa Ana flights
Portland to San Francisco flights
Everett to Los Angeles flights
Everett to San Diego flights
Portland to Burbank flights
Seattle to Oakland flights
Portland to San Diego flights
Everett to Santa Ana flights
Seattle to Burbank flights
Portland to Palm Springs flights
Seattle to Long Beach flights
Portland to Oakland flights
Seattle to Sacramento flights
Portland to San Jose flights
Spokane to Las Vegas flights
Pasco to Las Vegas flights
Seattle to Reno flights
Spokane to Los Angeles flights
Portland to Sacramento flights
Spokane to San Francisco flights
Seattle to Fresno flights
Spokane to San Diego flights
Portland to Long Beach flights
Spokane to Sacramento flights
Pasco to Los Angeles flights
Portland to Reno flights
Seattle to Santa Barbara flights
Pasco to San Francisco flights
Portland to Fresno flights
Spokane to Santa Ana flights
Seattle to Santa Rosa flights
Spokane to Ontario flights
Everett to San Jose flights
Seattle to San Luis Obispo flights
Portland to San Luis Obispo flights
Spokane to Oakland flights
Spokane to Palm Springs flights

Top 8 airlines flying from Seattle to San Clemente

Discover the top 8 airlines that operate flights from Seattle to San Clemente. 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 November 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$167FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$71Average$160FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$98Average$258FlexibilityNo cancel feeOn-time85%
DeltaCheapest$118Average$264FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$130Average$271FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$147Average$283FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$155Average$298FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$177Average$384FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.