Cheap flights from Los Angeles to Seattle from $140

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SEA
27 Aug — 3 Sep1
1 adult

Cheapflights Tip: The best prices from Los Angeles to Seattle/Tacoma Intl are usually found in January or February, booked 58 days in advance, depart on a Friday or Saturday and return on a Monday

Cheap flight deals from Los Angeles to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Los Angeles (LAX) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 August 2025.

Round-trip from

$243

One-way from

$140

Popular in

July

Cheapest in

January

Average price

$384

Good one-way deal

$216 or less
Frontier
  • Frontier
  • 15/9-19/9
  • Nonstop
  • 5h 41m total
  • Los Angeles to Seattle
United Airlines
  • United Airlines
  • 5/9
  • Nonstop
  • 2h 53m total
  • Los Angeles to Seattle
Highest demand for flights based on searches. 17% potential increase in price ($106 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average return price).
Average for round-trip flights in August 2025
Price to beat on a one-way flight from Los Angeles to Seattle/Tacoma Intl.

Find flight deals from Los Angeles to Seattle

Cheapest flights from Los Angeles to Seattle
Explore the most affordable flight options available from Los Angeles to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2025.

Mon 15/916:45LAX - SEA
Nonstop2h 51mFrontier
Fri 19/910:10SEA - LAX
Nonstop2h 50mFrontier
Deal found 21/8$243
Sat 20/919:22LAX - SEA
Nonstop2h 53mUnited Airlines
Sat 27/917:26SEA - LAX
Nonstop2h 45mUnited Airlines
Deal found 21/8$244
Mon 6/1021:03LAX - SEA
1 stop15h 04mFrontier
Mon 13/1013:02SEA - LAX
Nonstop2h 49mFrontier
Deal found 21/8$252
Sat 18/1018:58LAX - SEA
Nonstop2h 55mUnited Airlines
Tue 21/1017:26SEA - LAX
Nonstop2h 45mUnited Airlines
Deal found 21/8$261
Thu 23/1009:22LAX - SEA
1 stop4h 05mAlaska Airlines
Thu 23/1016:30SEA - LAX
Nonstop2h 45mAlaska Airlines
Deal found 21/8$282
Sat 25/1015:45LAX - SEA
1 stop6h 20mSouthwest
Sat 1/1115:50SEA - LAX
2 stops7h 05mSouthwest
Deal found 21/8$283
Tue 21/1016:10LAX - SEA
1 stop5h 05mUnited Airlines
Sat 25/1006:35SEA - LAX
Nonstop2h 45mUnited Airlines
Deal found 21/8$285
Wed 22/1017:15LAX - SEA
Nonstop2h 52mAlaska Airlines
Wed 22/1023:10SEA - LAX
1 stop10h 09mAlaska Airlines
Deal found 21/8$291
Wed 8/1018:20LAX - SEA
1 stop4h 25mSouthwest
Sat 11/1006:15SEA - LAX
1 stop6h 55mSouthwest
Deal found 21/8$293
Sun 31/811:45LAX - SEA
1 stop7h 04mUnited Airlines
Wed 3/917:14SEA - LAX
Nonstop2h 44mUnited Airlines
Deal found 21/8$294
Tue 28/1006:00LAX - SEA
1 stop5h 24mHawaiian Airlines
Tue 4/1121:15SEA - LAX
Nonstop2h 44mHawaiian Airlines
Deal found 21/8$299

Cheapflights Fare Finder

 
Customise your flight search to find flights from Los Angeles to Seattle 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 647,157 searches. Data last updated 22 August 2025.
Use the filters below to find and compare flights from Los Angeles to Seattle that are best for you.

Fly from

Los Angeles

Fly to

Seattle

Route

Depart

Return

Price

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 20/9

19:22-22:15

Nonstop2h 53m

Seattle/Tacoma Intl

Sat 27/9

17:26-20:11

Nonstop2h 45m

$244

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Mon 6/10

21:03-12:07

1 stop15h 04m

Seattle/Tacoma Intl

Mon 13/10

13:02-15:51

Nonstop2h 49m

$252

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 12/11

08:40-11:39

Nonstop2h 59m

Seattle/Tacoma Intl

Sat 15/11

12:41-15:32

Nonstop2h 51m

$261

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 18/10

18:58-21:53

Nonstop2h 55m

Seattle/Tacoma Intl

Tue 21/10

17:26-20:11

Nonstop2h 45m

$261

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 6/12

15:45-20:15

1 stop4h 30m

Seattle/Tacoma Intl

Sat 13/12

12:20-20:20

1 stop8h 00m

$275

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Mon 15/9

16:45-19:36

Nonstop2h 51m

Seattle/Tacoma Intl

Fri 19/9

10:10-13:00

Nonstop2h 50m

$275

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Thu 23/10

09:22-13:27

1 stop4h 05m

Seattle/Tacoma Intl

Thu 23/10

16:30-19:15

Nonstop2h 45m

$282

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 25/10

15:45-22:05

1 stop6h 20m

Seattle/Tacoma Intl

Sat 1/11

15:50-22:55

2 stops7h 05m

$283

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 9/12

07:25-11:35

1 stop4h 10m

Seattle/Tacoma Intl

Sat 13/12

12:20-20:20

1 stop8h 00m

$285

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 21/10

16:10-21:15

1 stop5h 05m

Seattle/Tacoma Intl

Sat 25/10

06:35-09:20

Nonstop2h 45m

$285

Flights are sorted by cheapest return flights first.

Deals found on 21/8

Showing 1-10 of 19 results
1
2

Best time to book a flight from Los Angeles to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Los Angeles 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 Los Angeles to Seattle

How far ahead should I book a flight from Los Angeles to Seattle?

Use this chart to determine the optimal time to book a return flight from Los Angeles to Seattle. Price data was last updated on 8 August 2025.

To ensure you get the cheapest price possible for a flight from Los Angeles to Seattle, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, March is the cheapest month in which you can book a flight from Los Angeles to Seattle (average of $875). Flying from Los Angeles to Seattle in December is currently the most expensive (average of $1,371). 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 LAX to SEA?

Find hourly flight availability from Los Angeles to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 August 2025.

It’s typically best to fly out from Los Angeles to Seattle in the afternoon. Doing so could potentially save you 37% on the flight price compared to flying at midday, which is usually more expensive.

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

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 22 August 2025.
Read reviews from past customers who have flown with Alaska Airlines from Los Angeles to Seattle. 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.

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Los Angeles to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from Los Angeles to Seattle?

    If you wish to fly to Seattle from Los Angeles, then you need to book flights from Los Angeles to Seattle/Tacoma Intl. There are 86 flights from Los Angeles (LAX) to Seattle/Tacoma Intl (SEA) per day to choose from. Flights to Seattle from Los Angeles are available from 1 airline, which means you should have some options if you want to compare airfare deals. 2h 49m is how long a nonstop flight from Los Angeles to Seattle/Tacoma Intl typically takes.

  • How popular is this Los Angeles to Seattle flight route?

  • How long is the flight from Los Angeles to Seattle?

    Departing from Los Angeles to Seattle will take you 2h 53m. The distance between Los Angeles and Seattle is about 1535 km. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Los Angeles to Seattle round-trip?

    Cheapflights users have booked flights from Los Angeles to Seattle round-trip from $230. This flight start at 29% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $140. However, be on the lookout for offers from Alaska Airlines and Hawaiian Airlines, as they are both options that can get you from Los Angeles to Seattle for a low price.

  • What are the most reliable airlines from Los Angeles to Seattle?

    Consider SAUDIA (92%), EL AL (91%) or ITA Airways (90%) when booking your flight. These represent the most reliable airlines when flying from Los Angeles to Seattle.

  • What are the cheapest flights from Los Angeles to Seattle?

    Looking for the cheapest flight from Los Angeles to Seattle? While on average our users pay $226, our data indicates the cheapest price to be $151. The most popular route (Los Angeles - Seattle/Tacoma Intl), is priced around $243.

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

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

  • How can I find direct flights from Los Angeles to Seattle?

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

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

    Yes. Cheapflights offers flight deals from Los Angeles to Seattle 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 Los Angeles to Seattle?

    Currently, March is the cheapest month in which you can book a flight from Los Angeles to Seattle (average of $875). Flying from Los Angeles to Seattle in December is currently the most expensive (average of $1,371). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Ocean Shores

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Alternative routes for Los Angeles to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Los Angeles to Seattle

Discover the top airline that operate flights from Los Angeles to Seattle. 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 647,157 searches. Data last updated 22 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$230Average$435FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Los Angeles to Seattle?

Cheapflights helps you search for flights from Los Angeles to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Los Angeles to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Los Angeles to Seattle, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Los Angeles today and book when prices fit your budget.

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