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Cheap flights from Seattle to California from £55

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LAX
11 May — 18 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to California

Enter your travel dates to find the best prices.

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 11 April 2026.

Tue 5/519:04
SEA
-
SFO
Nonstop2h 19m
Alaska Airlines
Wed 13/517:44
SFO
-
SEA
Nonstop2h 15m
Alaska Airlines
Deal found 6/4£110
Wed 27/519:50
SEA
-
LAX
1 stop28h 26m
Frontier
Fri 29/515:15
LAX
-
SEA
Nonstop3h 20m
Frontier
Deal found 6/4£112
Tue 5/508:31
SEA
-
SFO
Nonstop2h 25m
Alaska Airlines
Tue 5/514:00
SFO
-
SEA
Nonstop2h 17m
Alaska Airlines
Deal found 9/4£113
Wed 6/510:49
SEA
-
LAX
Nonstop2h 54m
Alaska Airlines
Wed 13/506:00
LAX
-
SEA
Nonstop2h 57m
Alaska Airlines
Deal found 8/4£117
Tue 5/511:50
SEA
-
SFO
Nonstop2h 31m
Alaska Airlines
Wed 6/514:00
SFO
-
SEA
Nonstop2h 17m
Alaska Airlines
Deal found 6/4£117
Tue 28/417:31
SEA
-
SJC
Nonstop2h 15m
Alaska Airlines
Tue 5/514:44
SJC
-
SEA
Nonstop2h 16m
Alaska Airlines
Deal found 7/4£117
Tue 28/407:05
SEA
-
OAK
Nonstop2h 08m
Alaska Airlines
Tue 2/607:00
OAK
-
SEA
Nonstop2h 10m
Alaska Airlines
Deal found 6/4£117
Sat 9/520:09
SEA
-
RNO
Nonstop1h 56m
Alaska Airlines
Mon 11/515:15
RNO
-
SEA
Nonstop2h 02m
Alaska Airlines
Deal found 7/4£117
Tue 12/516:42
SEA
-
SAN
Nonstop2h 57m
Alaska Airlines
Tue 19/507:15
SAN
-
SEA
Nonstop3h 10m
Alaska Airlines
Deal found 7/4£123
Sat 9/517:25
SEA
-
SAN
1 stop5h 12m
United Airlines
Tue 12/513:35
SAN
-
SEA
1 stop7h 31m
United Airlines
Deal found 10/4£123
Sun 17/508:00
SEA
-
LAX
Nonstop2h 56m
Alaska Airlines
Tue 26/509:00
LAX
-
SEA
Nonstop3h 01m
Alaska Airlines
Deal found 7/4£124
Wed 17/616:35
SEA
-
SJC
1 stop6h 25m
Southwest
Wed 24/606:35
SJC
-
SEA
Nonstop2h 15m
Southwest
Deal found 8/4£124

Find flight deals from Seattle to California

Keep the following information in mind while searching for Seattle to California flight deals. Data was last updated 11 April 2026.

Round-trip from

£110

One-way from

£55

Popular in

December

Cheapest in

May

Average price

£187

Good round-trip deal

£65 or less

Good one-way deal

£133 or less
Alaska Airlines
  • Alaska Airlines
  • 5/5-13/5
  • Nonstop
  • 4h 34m total
  • Seattle to California
Search Deals
Frontier
  • Frontier
  • 3/9
  • Nonstop
  • 2h 35m total
  • Seattle to California
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£7 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to California.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to California.
Search Deals

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 11 April 2026.
Use the filters below to find and compare flights from Seattle to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 5/5

07:00-09:22

Nonstop2h 22m

San Francisco

Wed 6/5

10:32-12:55

Nonstop2h 23m

£117

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Wed 10/6

12:20-15:19

Nonstop2h 59m

San Diego

Tue 16/6

16:18-19:20

Nonstop3h 02m

£123

SeattleOakland

SEA - OAK

SEAOAK

Seattle/Tacoma Intl

Wed 13/5

12:10-17:15

1 stop5h 05m

Oakland

Tue 19/5

06:35-08:40

Nonstop2h 05m

£124

SeattleOntario

SEA - ONT

SEAONT

Seattle/Tacoma Intl

Wed 6/5

07:05-09:45

Nonstop2h 40m

Ontario

Wed 13/5

16:03-18:52

Nonstop2h 49m

£132

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 23/5

17:04-19:53

Nonstop2h 49m

Los Angeles

Sun 24/5

07:30-14:30

1 stop7h 00m

£132

SeattleReno

SEA - RNO

SEARNO

Seattle/Tacoma Intl

Thu 7/5

18:15-23:40

1 stop5h 25m

Reno

Thu 14/5

17:25-00:55

1 stop7h 30m

£132

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Fri 5/6

16:20-18:53

Nonstop2h 33m

Las Vegas Harry Reid Intl

Sun 7/6

06:03-08:45

Nonstop2h 42m

£132

SeattleLas Vegas

SEA - LAS

SEALAS

Seattle/Tacoma Intl

Wed 29/4

20:05-22:41

Nonstop2h 36m

Las Vegas Harry Reid Intl

Wed 6/5

19:14-22:05

Nonstop2h 51m

£132

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 5/5

12:10-18:30

1 stop6h 20m

San Francisco

Wed 13/5

07:20-17:45

2 stops10h 25m

£135

SeattleSan Diego

SEA - SAN

SEASAN

Seattle/Tacoma Intl

Wed 27/5

14:36-20:46

1 stop6h 10m

San Diego

Sat 30/5

16:09-20:53

1 stop4h 44m

£136

Flights are sorted by cheapest return flights first.

Deals found on 7/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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, March is the cheapest month in which you can book a flight from Seattle to California (average of £49). Flying from Seattle to California in July is currently the most expensive (average of £89). 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 11 April 2026.

A simple way to save on the total cost of your ticket is to fly from Seattle to California in the afternoon. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight in the evening.

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 11 April 2026.

The most flights from SEA to USCA are scheduled on a Friday (99 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (28 on average).

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 11 April 2026.
See what other customers who have flown with Alaska Airlines and Frontier 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
7.9
Good
12,217 reviews
Check prices

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Overall

7.9

Food

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,217 reviews
Alaska Airlines
7.9
Good
12,217 reviews
Check prices

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Overall

7.9

Food

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Frontier
5.7
Fair
2,998 reviews
Alaska Airlines
7.9
Good
12,217 reviews
Check prices

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Overall

7.9

Food

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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

  • How long is the flight from Seattle to California?

    Airlines like Alaska Airlines, United Airlines, and Southwest 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 2h 53m. 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?

    £33 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Alaska Airlines and Delta, with prices starting from £54 and £62, respectively.

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

    While some choose either Seattle/Tacoma Intl - Los Angeles or Seattle/Tacoma Intl - San Diego, Seattle/Tacoma Intl - Las Vegas Harry Reid Intl 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 ITA Airways (100%), Air China (94%) or China Eastern (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 £79, our data indicates the cheapest price to be £61. The most popular route (Seattle/Tacoma Intl - Las Vegas Harry Reid Intl), is priced around £154.

  • 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, March is the cheapest month in which you can book a flight from Seattle to California (average of £49). Flying from Seattle to California in July is currently the most expensive (average of £89). 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 2 airlines flying from Seattle to California

Discover the top 2 airlines 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 11 April 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest£61Average£80FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Alaska AirlinesCheapest£133Average£182FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

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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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