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San Clemente

$92+ 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LAX
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Clemente are usually found in January or March, booked 30 days in advance, depart on a Friday or Thursday and return on a Saturday

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 August 18, 2025.

Round-trip from

$132
(Cheapflightsfares)

One-way from

$92
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$237
From Seattle/Tacoma Intl to San Clemente
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One-way flight from Seattle/Tacoma Intl to San Clemente
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($8 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 18, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2510:10 amSEA - LAX
Nonstop2h 50mFrontier
Mon 9/294:45 pmLAX - SEA
Nonstop2h 51mFrontier
Deal found 8/18$132
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/181:02 pmSEA - LAX
Nonstop2h 49mFrontier
Thu 10/238:40 pmLAX - SEA
1 stop18h 36mFrontier
Deal found 8/18$133
This Frontier deal was found by Cheapflights users on 8/18. 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.
Wed 10/151:02 pmSEA - LAX
Nonstop2h 49mFrontier
Mon 10/278:40 amLAX - SEA
1 stop9h 04mFrontier
Deal found 8/18$134
This FlightHub deal was found by Cheapflights users on 8/17. 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 10/171:02 pmSEA - LAX
Nonstop2h 49mFrontier
Mon 10/204:52 pmLAX - SEA
Nonstop2h 56mFrontier
Deal found 8/17$135
This CheapOair deal was found by Cheapflights users on 8/18. 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 8/309:42 pmSEA - LAX
Nonstop2h 52mFrontier
Sat 9/66:15 pmLAX - SEA
1 stop18h 10mFrontier
Deal found 8/18$136
This CheapOair deal was found by Cheapflights users on 8/17. 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 9/69:39 pmSEA - LAX
Nonstop2h 50mFrontier
Sun 9/76:35 amLAX - SEA
1 stop17h 55mFrontier
Deal found 8/17$137
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:10 amSEA - LAX
Nonstop2h 50mFrontier
Sun 9/284:49 pmLAX - SEA
Nonstop2h 51mFrontier
Deal found 8/17$138
This Frontier deal was found by Cheapflights users on 8/16. 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.
Sat 9/67:00 amSEA - LAX
1 stop10h 30mFrontier
Sat 9/69:08 pmLAX - SEA
Nonstop2h 51mFrontier
Deal found 8/16$139
This Frontier deal was found by Cheapflights users on 8/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/209:39 pmSEA - LAX
Nonstop2h 50mFrontier
Sun 9/218:25 pmLAX - SEA
1 stop12h 55mFrontier
Deal found 8/17$140
This CheapOair deal was found by Cheapflights users on 8/16. 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.
Thu 9/1810:10 amSEA - LAX
Nonstop2h 50mFrontier
Tue 9/231:37 pmLAX - SEA
1 stop9h 22mFrontier
Deal found 8/16$141
This CheapOair deal was found by Cheapflights users on 8/16. 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 9/54:40 pmSEA - LAX
1 stop21h 06mFrontier
Sun 9/78:03 pmLAX - SEA
1 stop19h 38mFrontier
Deal found 8/16$143

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 August 18, 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

Mon 9/8

1:49 pm-7:52 pm

1 stop6h 03m

Los Angeles

Sat 9/13

9:08 pm-11:59 pm

Nonstop2h 51m

$135

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Fri 10/17

1:02 pm-3:51 pm

Nonstop2h 49m

Los Angeles

Mon 10/20

4:52 pm-7:48 pm

Nonstop2h 56m

$135

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Fri 11/7

9:08 am-11:57 am

Nonstop2h 49m

Los Angeles

Wed 11/12

3:27 pm-6:32 pm

1 stop27h 05m

$136

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sun 10/5

4:36 pm-1:08 pm

1 stop20h 32m

Los Angeles

Wed 10/22

4:52 pm-7:48 pm

Nonstop2h 56m

$136

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sun 10/19

4:11 pm-1:35 pm

1 stop21h 24m

Los Angeles

Fri 10/24

4:52 pm-7:48 pm

Nonstop2h 56m

$136

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Fri 11/7

9:08 am-11:57 am

Nonstop2h 49m

Los Angeles

Mon 11/10

11:56 am-6:32 pm

1 stop6h 36m

$136

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Wed 9/3

6:41 am-1:21 pm

1 stop6h 40m

Los Angeles

Sat 9/6

9:08 pm-11:59 pm

Nonstop2h 51m

$136

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 9/9

7:00 am-12:27 am

1 stop17h 27m

Los Angeles

Sat 9/13

9:08 pm-11:59 pm

Nonstop2h 51m

$136

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Fri 9/19

4:40 pm-1:46 pm

1 stop21h 06m

Los Angeles

Sun 9/21

4:49 pm-7:40 pm

Nonstop2h 51m

$136

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sun 9/21

10:10 am-1:00 pm

Nonstop2h 50m

Los Angeles

Wed 9/24

3:32 pm-3:31 pm

1 stop23h 59m

$136

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

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 August 8, 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 30 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 $246). Flying from Seattle to San Clemente in March is currently the most expensive (average of $326). 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 August 18, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to San Clemente as you normally would.

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 Friday at noon 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 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 August 18, 2025.

The most flights from SEA to CL3 are scheduled on a Sunday (141 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (39 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 August 18, 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
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Spirit Airlines
6.3
Okay
8,038 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Frontier
5.8
Fair
3,212 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 308 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 6h 03m. Frontier provides one of the quickest options available for as low as $135. The distance between Seattle and San Clemente is about 954 mi.

  • 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: China Eastern (97%), SAUDIA (92%), Japan Airlines (92%).

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

    Looking at all options, your cheapest flight can be booked for $91. While the most popular route (Seattle/Tacoma Intl - Los Angeles) can be booked for $82 on average our data indicates $496 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 $246). Flying from Seattle to San Clemente in March is currently the most expensive (average of $326). 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 Clemente

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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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$45Average$164FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$62Average$141FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$98Average$260FlexibilityNo cancel feeOn-time85%
DeltaCheapest$117Average$261FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$136Average$272FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$154Average$294FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$156Average$295FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$157Average$390FlexibilityNo cancel feeOn-time71%

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