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Cheap flights from Seattle to California

SEA — LAX
25 Aug — 1 Sep1
1 adult

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 20 August 2025.

Round-trip from

£101

One-way from

£53

Popular in

December

Cheapest in

January

Average price

£176

Good round-trip deal

£156 or less

Good one-way deal

£96 or less
Delta
  • Delta
  • 9/9-16/9
  • Nonstop
  • 4h 29m total
  • Seattle to California
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Frontier
  • Frontier
  • 12/9
  • 1 total stop
  • 4h 35m total
  • Seattle to California
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Highest demand for flights based on searches. 3% potential increase in price (£4 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in August 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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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, January is the cheapest month in which you can book a flight from Seattle to California (average of £575). 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 20 August 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.

How much does it cost for a return flight from Seattle to California?

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 20 August 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

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

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
Check prices

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

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 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, 10 users have taken a look at flights from Seattle/Tacoma Intl to California.

  • How long is the flight from Seattle to California?

    Airlines like Hawaiian Airlines, Delta, and Alaska Airlines fly from Seattle to California in about 2h 14m. The time it takes to get you to your destination is usually consistent. There are 679 mi between Seattle and California. Most flights are nonstop.

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

    £56 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Alaska Airlines and Hawaiian Airlines, with prices starting from £56 and £56, respectively.

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

    While some choose either Seattle/Tacoma Intl - San Jose or Seattle/Tacoma Intl - Ontario, Seattle/Tacoma Intl - Oakland 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%), SAUDIA (92%) or Japan Airlines (92%) 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 £141, our data indicates the cheapest price to be £73. The most popular route (Seattle/Tacoma Intl - Oakland), is priced around £133.

  • 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, January is the cheapest month in which you can book a flight from Seattle to California (average of £575). 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.

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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 20 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest£82Average£231FlexibilityNo cancel feeOn-time75%
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How does Cheapflights help users find flights from Seattle to California?

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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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