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Cheap flights from Seattle to California from £43

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LAX
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Seattle to California

Keep the following information in mind while searching for Seattle to California flight deals. Data was last updated 18 September 2025.

Round-trip from

£83

One-way from

£43

Popular in

December

Cheapest in

January

Average price

£163

Good round-trip deal

£148 or less

Good one-way deal

£73 or less
Frontier
  • Frontier
  • 31/10-7/11
  • 1 total stop
  • 12h 55m total
  • Seattle to California
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Delta
  • Delta
  • 11/10
  • Nonstop
  • 2h 31m total
  • Seattle to California
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£2 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to California.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to California.
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Find flight deals from Seattle to California

Cheapest flights from Seattle to California
Explore the most affordable flight options available from Seattle to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Fri 31/1012:58SEA - LAS
1 stop9h 52mFrontier
Fri 7/1115:29LAS - SEA
Nonstop3h 03mFrontier
Deal found 16/9£83
Sat 11/1018:05SEA - LAS
Nonstop2h 31mDelta
Sat 18/1006:00LAS - SEA
Nonstop2h 46mDelta
Deal found 16/9£86
Wed 12/1105:40SEA - LAS
1 stop8h 05mSouthwest
Tue 18/1119:40LAS - SEA
Nonstop2h 50mSouthwest
Deal found 16/9£93
Tue 14/1007:00SEA - SFO
Nonstop2h 16mAlaska Airlines
Tue 14/1011:22SFO - SEA
Nonstop2h 16mAlaska Airlines
Deal found 15/9£96
Tue 7/1014:16SEA - LAS
Nonstop2h 37mAlaska Airlines
Tue 7/1019:35LAS - SEA
Nonstop2h 55mAlaska Airlines
Deal found 16/9£96
Tue 28/1006:15SEA - LAS
2 stops6h 05mSouthwest
Wed 29/1020:10LAS - SEA
Nonstop2h 45mSouthwest
Deal found 16/9£97
Fri 24/1019:55SEA - ONT
Nonstop2h 46mDelta
Thu 30/1007:35ONT - SEA
Nonstop3h 00mDelta
Deal found 16/9£97
Fri 24/1013:02SEA - LAX
Nonstop2h 49mFrontier
Mon 27/1021:17LAX - SEA
1 stop14h 56mFrontier
Deal found 16/9£97
Sat 1/1110:08SEA - LAX
Nonstop2h 49mFrontier
Sat 8/1111:40LAX - SEA
1 stop24h 17mFrontier
Deal found 17/9£98
Mon 20/1007:20SEA - LAS
1 stop4h 50mSouthwest
Wed 22/1018:10LAS - SEA
1 stop4h 35mSouthwest
Deal found 17/9£100
Tue 14/1007:00SEA - SFO
Nonstop2h 20mUnited Airlines
Tue 14/1019:00SFO - SEA
Nonstop2h 15mUnited Airlines
Deal found 15/9£100
Wed 5/1113:35SEA - SJC
Nonstop2h 19mAlaska Airlines
Wed 12/1116:48SJC - SEA
Nonstop2h 19mAlaska Airlines
Deal found 16/9£100

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seattle to California 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 858,174 searches. Data last updated 18 September 2025.
Use the filters below to find and compare flights from Seattle to California that are best for you.

Fly from

Seattle

Fly to

California

Route

Depart

Return

Price

SeattleOntario

SEA - ONT

SEAONT

Seattle/Tacoma Intl

Fri 24/10

19:55-22:41

Nonstop2h 46m

Ontario

Thu 30/10

07:35-10:35

Nonstop3h 00m

£97

SeattleOntario

SEA - ONT

SEAONT

Seattle/Tacoma Intl

Wed 22/10

08:15-11:08

Nonstop2h 53m

Ontario

Tue 28/10

07:35-10:35

Nonstop3h 00m

£97

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Mon 17/11

05:40-13:45

1 stop8h 05m

Las Vegas Harry Reid Intl

Wed 19/11

05:30-12:05

1 stop6h 35m

£100

SeattleOakland

SEA - OAK

SEAOAK

Seattle/Tacoma Intl

Sat 17/1

21:30-23:38

Nonstop2h 08m

Oakland

Tue 20/1

10:10-12:16

Nonstop2h 06m

£100

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 5/11

07:10-09:24

Nonstop2h 14m

San Francisco

Tue 11/11

16:37-19:00

Nonstop2h 23m

£100

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 14/10

21:25-23:33

Nonstop2h 08m

San Francisco

Sat 25/10

10:35-12:55

Nonstop2h 20m

£100

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Sat 25/10

10:40-13:02

Nonstop2h 22m

San Jose

Tue 28/10

14:21-16:42

Nonstop2h 21m

£100

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Tue 14/10

19:59-22:30

Nonstop2h 31m

Las Vegas Harry Reid Intl

Tue 21/10

19:10-22:00

Nonstop2h 50m

£100

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Wed 22/10

12:00-14:39

Nonstop2h 39m

Las Vegas Harry Reid Intl

Wed 29/10

06:00-08:46

Nonstop2h 46m

£100

SeattleOakland

SEA - OAK

SEAOAK

Seattle/Tacoma Intl

Thu 23/10

06:30-08:35

Nonstop2h 05m

Oakland

Wed 29/10

07:25-19:15

2 stops11h 50m

£101

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 60 results
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Best time to book a flight from Seattle to California

Have a flexible travel schedule? Discover the best time to fly to California from Seattle with our price prediction graph.
Estimated return 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 California

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

Currently, September is the cheapest month in which you can book a flight from Seattle to California (average of £573). Flying from Seattle to California in July is currently the most expensive (average of £811). 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 CA?

Find hourly flight availability from Seattle to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

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

Weekly flight availability from Seattle to California

Explore weekly flight availability from Seattle to California. 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 18 September 2025.

The most flights from SEA to USCA are scheduled on a Monday (132 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (63 on average).

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. 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 California. Reviews last updated 18 September 2025.
See what other customers who have flown with Alaska Airlines from Seattle to California have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sept 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
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sept 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 California. 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 California?

    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 California.

  • How popular is this Seattle to California flight route?

    Within the past month, 9 users have taken a look at flights from Seattle/Tacoma Intl to California.

  • How long is the flight from Seattle to California?

    Airlines like Delta, Southwest, and Hawaiian Airlines fly from Seattle to California in about 2h 08m. The time it takes to get you to your destination can typically vary by up to 5h 57m. There are 672 mi between Seattle and California. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    £43 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Southwest and Alaska Airlines, with prices starting from £43 and £51, respectively.

  • What are the most popular routes from Seattle to California?

    While some choose either Seattle/Tacoma Intl - Los Angeles or Seattle/Tacoma Intl - Oakland, Seattle/Tacoma Intl - San Francisco is the most popular route from Seattle to California.

  • What are the most reliable airlines from Seattle to California?

    No one likes to see their flight delayed. When booking a flight from Seattle to California consider choosing China Eastern (97%), SkyWest Airlines (94%) or ITA Airways (94%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to California?

    Looking for the cheapest flight from Seattle to California? While on average our users pay £144, our data indicates the cheapest price to be £109. The most popular route (Seattle/Tacoma Intl - San Francisco), is priced around £137.

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

    Yes. In addition to deals on Seattle to California flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to California?

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

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

    Yes. Cheapflights offers flight deals from Seattle to California 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 California?

    Currently, September is the cheapest month in which you can book a flight from Seattle to California (average of £573). Flying from Seattle to California in July is currently the most expensive (average of £811). 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

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Top airline flying from Seattle to California

Discover the top airline that operate flights from Seattle to California. 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 858,174 searches. Data last updated 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest£81Average£221FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Seattle to California?

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

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to California for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from Seattle to California with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for Seattle to California flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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