LAX - SEA

C$ 97 Find Cheap Flights from Los Angeles to Seattle – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 218
Typical prices: C$ 244-C$ 477
Alaska Airlines
Tue 2/10Fri 5/10
LAX - SEA • Direct
Cheapest direct flights
C$ 218
Typical prices: C$ 245-C$ 479
Delta
Mon 5/11Thu 8/11
LAX - SEA • Direct
Advice from real travellers
Frontier Economy Bundle adds a carry-on and seat choice; Alaska speeds bag claim.
For comfort, Alaska Premium Class or Delta Comfort Plus add extra legroom.
Expert advice
+1
Expert advice
+1
Direct flights
You can fly direct with Alaska Airlines, Delta, and others. Average duration is 2h 56m.
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 94% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 11 weeks in advance save around 53% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 332 (round-trip)
Shortest trip • 4h 31m (one-way)
Insights
Insights
Start a new search
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We hope you enjoy your trip to Seattle!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Los Angeles to Seattle (LAX-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Los Angeles to Seattle

Sat, 10 Oct - Wed, 21 Oct
Delta Logo
7:10 p.m. - 9:58 p.m.LAX  Los Angeles-SEA Seattle/Tacoma Intl
2h 48mdirect
Delta Logo
2:30 p.m. - 5:10 p.m.SEA  Seattle/Tacoma Intl-LAX Los Angeles
2h 40mdirect
C$ 218Delta
Thu, 8 Oct - Sun, 11 Oct
Delta Logo
2:00 p.m. - 4:45 p.m.LAX  Los Angeles-SEA Seattle/Tacoma Intl
2h 45mdirect
Delta Logo
9:45 a.m. - 12:32 p.m.SEA  Seattle/Tacoma Intl-LAX Los Angeles
2h 47mdirect
C$ 218Delta
Fri, 2 Oct - Mon, 5 Oct
Alaska Airlines Logo
8:10 p.m. - 10:59 p.m.LAX  Los Angeles-SEA Seattle/Tacoma Intl
2h 49mdirect
Alaska Airlines Logo
8:09 p.m. - 10:55 p.m.SEA  Seattle/Tacoma Intl-LAX Los Angeles
2h 46mdirect
C$ 218Alaska Airlines
Thu, 5 Nov - Sun, 8 Nov
Delta Logo
9:45 a.m. - 12:40 p.m.LAX  Los Angeles-SEA Seattle/Tacoma Intl
2h 55mdirect
Delta Logo
7:32 a.m. - 10:25 a.m.SEA  Seattle/Tacoma Intl-LAX Los Angeles
2h 53mdirect
C$ 218Delta
Mon, 23 Nov - Fri, 27 Nov
Delta Logo
5:15 p.m. - 8:09 p.m.LAX  Los Angeles-SEA Seattle/Tacoma Intl
2h 54mdirect
Delta Logo
7:15 a.m. - 10:10 a.m.SEA  Seattle/Tacoma Intl-LAX Los Angeles
2h 55mdirect
C$ 218Delta
Thu, 1 Oct - Mon, 5 Oct
Delta Logo
7:19 p.m. - 10:05 p.m.LAX  Los Angeles-SEA Seattle/Tacoma Intl
2h 46mdirect
Delta Logo
9:35 p.m. - 12:24 a.m.SEA  Seattle/Tacoma Intl-LAX Los Angeles
2h 49mdirect
C$ 218Delta
Thu, 15 Oct - Sat, 31 Oct
Delta Logo
2:00 p.m. - 4:45 p.m.LAX  Los Angeles-SEA Seattle/Tacoma Intl
2h 45mdirect
Delta Logo
9:45 a.m. - 12:32 p.m.SEA  Seattle/Tacoma Intl-LAX Los Angeles
2h 47mdirect
C$ 218Delta
Thu, 15 Oct - Mon, 26 Oct
Delta Logo
7:10 p.m. - 9:58 p.m.LAX  Los Angeles-SEA Seattle/Tacoma Intl
2h 48mdirect
Delta Logo
12:30 p.m. - 3:15 p.m.SEA  Seattle/Tacoma Intl-LAX Los Angeles
2h 45mdirect
C$ 218Delta
Sat, 10 Oct - Sat, 17 Oct
Frontier Logo
9:57 p.m. - 8:58 a.m.LAX  Los Angeles-SEA Seattle/Tacoma Intl
11h 01m1 stop Las Vegas Harry Reid Intl
Frontier Logo
8:00 p.m. - 10:46 p.m.SEA  Seattle/Tacoma Intl-LAX Los Angeles
2h 46mdirect
C$ 231Frontier
Sat, 10 Oct - Sat, 17 Oct
Frontier Logo
9:57 p.m. - 8:11 p.m.LAX  Los Angeles-SEA Seattle/Tacoma Intl
22h 14m2 stops Las Vegas Harry Reid Intl Ontario
Frontier Logo
8:00 p.m. - 10:46 p.m.SEA  Seattle/Tacoma Intl-LAX Los Angeles
2h 46mdirect
C$ 307Frontier
Booking Insights

Price, demand, and travel trends for Los Angeles to Seattle flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Los Angeles to Seattle with more confidence.

How much is a round-trip flight from Los Angeles to Seattle?

Round-trip flights from Los Angeles to Seattle start at C$ 218. Prices are below average for this route right now, with typical round-trip fares ranging from C$ 244 to C$ 477. The lowest price found in the past 5 days was C$ 218 on Alaska Airlines.

What's the cheapest day of the week to fly from Los Angeles to Seattle?

Thursday is the cheapest day of the week to fly from Los Angeles to Seattle and is 6% cheaper than the average day. Sunday is the most expensive day with flight prices 10% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Los Angeles to Seattle?

  • March is the cheapest month to fly from Los Angeles to Seattle at C$ 270 round-trip.
  • June (C$ 438) and July (C$ 415) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 62% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Los Angeles to Seattle the cheapest?

Flights from Los Angeles to Seattle are cheapest 11 weeks before departure. Booking in this window typically costs about 53% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Los Angeles to Seattle

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines and SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on Delta, Frontier and LAX

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Key details for Los Angeles to Seattle flights

Low season

January

Cheapest flight

C$ 97
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (25% more expensive on average)
Flights from Los Angeles to Seattle

When to book flights from Los Angeles to Seattle

Are your dates flexible? Find out the best times to travel from Los Angeles to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Los Angeles to Seattle: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Los Angeles to Seattle 
PaulFlew with Alaska Airlines-Mar 2025
Be patient. Get there early. Ignore the crazies in LAX.
TerrieFlew with Spirit Airlines-Oct 2024
Get there early just in case there’s traffic’s
SaraFlew with Spirit Airlines-Aug 2024
Pay extra for the carry on and we got to board 1st. I did not pay to sit together but when I checked in the day before we were all 3 together.

Your Los Angeles to Seattle flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • What is the best way to travel from Seattle–Tacoma International Airport to downtown Seattle?

    Seattle–Tacoma International Airport is located just under 15 miles from downtown Seattle. The quickest way to travel between these two locations is by taxi or rental car, and the trip takes approximately 25 minutes without any additional traffic. It is also possible to use the local train system, which takes just under 45 minutes.

  • Does Seattle–Tacoma International Airport have any pet relief areas?

    If you are traveling with either a pet or service animal, you will most likely need to take them to a relief area after your flight has landed. There are currently 2 relief areas that are located outside the Main Hall of Seattle–Tacoma International Airport, as well as 3 indoor relief areas that are distributed throughout the different departure terminals.

  • Can I store my luggage at Seattle–Tacoma International Airport?

    Interested in storing some of your luggage at Seattle–Tacoma International Airport? Stop by the baggage storage counter that is located in the main baggage claim. This counter offers both daily and hourly rates and can store as much luggage as you would like.

  • What is there to do at Los Angeles International Airport?

    Hoping to find a way to pass the time in Los Angeles International Airport before your flight takes off? There is a Flight Path Museum located in the Main Terminal and features several exhibits related to Southern California’s aviation history. Additionally, travelers can access an Observation Deck in the Departures Wing that allows them to watch the airport’s planes take off and land.

  • Which airlines offer extra legroom and free seat selection on Los Angeles to Seattle flights?

    Among airlines operating Los Angeles to Seattle flights:

    • Frontier: offers free seat selection
    • Alaska Airlines: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection
    • American Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines are available on the route from Los Angeles to Seattle?

    5 airlines operate flights between Los Angeles and Seattle. The airlines offering direct flights on this route include:

    • Alaska Airlines
    • Delta
    • United Airlines
    • American Airlines
    • Frontier

  • Which airports can I use when flying from Los Angeles to Seattle?

    Flights from Los Angeles to Seattle usually depart from Los Angeles (LAX) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airlines include bags at no extra cost on Los Angeles to Seattle flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Frontier: a carry-on bag and a checked bag in Economy Class
    • Alaska Airlines: a carry-on bag and a checked bag in Economy Class
    • Delta: a carry-on bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

  • Which cabin classes can I book on flights from Los Angeles to Seattle?

    Only Economy Class is available on flights from Los Angeles to Seattle.

  • How much can I save by taking a layover when flying from Los Angeles to Seattle?

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 332 round-trip via San Jose (SJC), compared to C$ 352 for direct.

  • What is the standard checked bag allowance on flights from Los Angeles to Seattle?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 49–C$ 139 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Los Angeles to Seattle?

    The Airbus A321neo family is used most often on this route, operated mainly by Frontier and Delta. Other aircraft seen on the route include Boeing 737-800 Passenger/BBJ2 (winglets) variants.

  • Which airports do connecting flights from Los Angeles to Seattle pass through?

    One-stop flights from Los Angeles to Seattle most commonly connect through:

    • Denver Intl (DEN) – 36% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) – 16% of one-stop connections
    • Oakland (OAK) – 13% of one-stop connections
    • San Francisco (SFO) – 10% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Los Angeles to Seattle?

    Yes. Being flexible with your travel dates can save you up to 15% on the Los Angeles to Seattle route. Thursday is the cheapest departure day at C$ 332 round-trip on average, while Sunday is the most expensive at C$ 386, a difference of C$ 54. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed on the route from Los Angeles to Seattle?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Los Angeles to Seattle route, 9% of flights were delayed in the past 3 months, with delays averaging 2 hours 32 minutes.

  • How are flight departures from Los Angeles to Seattle spread across the day?

    Afternoon is the busiest departure period on Los Angeles to Seattle flights, with 37% leaving in that window. Morning departures account for 34%, Evening flights for 25%, and Night flights for 4%.

  • Which popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Lumen Field, T-Mobile Park, and Seattle Waterfront. These are among the most viewed places in Seattle on KAYAK.

  • What are the earliest and latest flights from Los Angeles to Seattle?

    These are the earliest and latest flight times available from Los Angeles to Seattle:

    • Earliest: departs at 6:00 am and lands at 8:56 am
    • Latest: departs at 9:24 pm and lands at 12:20 am.

    The flight takes about 2h 56m.

  • How expensive are last-minute Los Angeles to Seattle flights?

    Last-minute fares on this route – booked within 2 weeks of departure – run 51% above the route average of C$ 350. Book 11 weeks before departure for the lowest fares.

  • How long does a flight from Los Angeles to Seattle take?

    A direct flight from Los Angeles to Seattle takes 2h 56m, covering 2,472 km.

  • Do I need a passport to fly from Los Angeles to Seattle?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Los Angeles to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 218 to C$ 1,630. That means the highest observed fare was about 7x higher than the lowest one.

  • How are flight prices from Los Angeles to Seattle looking right now?

    One-way fares from Los Angeles to Seattle are currently lower than usual. Average one-way flight prices are about C$ 121, which is 53% below the typical average for this route.

  • How does United Airlines's on-time performance compare to other airlines on Los Angeles to Seattle flights?

    United Airlines is slightly above the route average for timely arrivals, while Alaska Airlines has a lower on-time arrival rate. On-time arrival rates on Los Angeles to Seattle flights are:

    • United Airlines: 94% on time
    • Alaska Airlines: 91% on time
    • Delta: 90% on time

    On average, flights on this route are punctual 91% of the time.

  • How do delay rates compare for morning and evening flights from Los Angeles to Seattle?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different layover airport when travelling from Los Angeles to Seattle?

    Flying via San Jose (SJC) gives the shortest average 1-stop total travel time at 4h 15m, compared with 4h 31m via Oakland (OAK) and 5h 00m via San Francisco (SFO).

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around C$ 5 for economy cars. Top options include:
    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Dollar

  • How much should I expect to pay for a Los Angeles to Seattle flight?

    Round-trip flights from Los Angeles to Seattle range from C$ 244 to C$ 477, with an average of C$ 350 over the past 12 months. Anything below C$ 244 counts as a good deal.

  • Which airlines offer Wi-Fi on Los Angeles to Seattle flights?

    Four airlines offer in-flight Wi-Fi on Los Angeles to Seattle flights:

    • • Alaska Airlines
    • • Delta
    • • American Airlines
    • • Hawaiian Airlines

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

Your guide to booking Los Angeles to Seattle flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure instead of Sunday. On this route, Thursday flights average C$ 332 – about C$ 54 less than Sunday (14% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 11 weeks before you fly. On this route, that window historically saves about 53% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Los Angeles to Seattle trip for March. Fares historically average C$ 270 round-trip in that month – typically C$ 168 less than the most expensive month, which is June (based on the last 12 months).
  • If arriving on time is high on your priority list, United Airlines is the strongest pick on this route. 94% of United Airlines flights from Los Angeles to Seattle arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 91%. When flights on this route do arrive late, the average delay is 2 hours32 minutes, so choosing a carrier with strong on-time performance can make a difference on tight schedules.
  • If you have the time, taking a 1-stop flight through San Jose Airport (SJC) can be cheaper than flying direct. The cheapest layover option averages C$ 332 round-trip on this route – about C$ 20 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.
    - Seattle Airport Marriott
    - Coast Gateway Hotel
    - Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport
  • Interested in booking direct flights from Los Angeles to Seattle? While there are several companies to choose from, Alaskan Airlines is a particularly popular choice due to its many flight options between these two destinations as well as its complimentary snacks and drinks, comfortable chairs, and outlets found at every seat.
  • If you plan on taking a substantial amount of luggage with you on your flight from Los Angeles to Seattle, consider booking with Southwest, as this company allows you to check up to two bags for free. However, it’s important to keep in mind that Southwest does not fly directly between Los Angeles International Airport and Seattle–Tacoma International Airport, so you will have to have a layover.
  • Traveling to Seattle with your family? Make sure to bring the kids to Seattle–Tacoma International Airport’s play area located next to Gate A in the Central Terminal. This play area features a variety of games and activities that are a convenient way for kids to burn some energy after a day of traveling.
  • Before you travel through Seattle–Tacoma International Airport, make sure to check the airport’s live music calendar on their website. A variety of local bands and artists are continually playing throughout the different terminals, and their performances are free for all travelers to enjoy.
  • If you book your ticket with American Airlines, Virgin Atlantic, or Delta Airlines, make sure to see if you are eligible for free access their private lounges in Los Angeles International Airport. These lounges provide travelers with complimentary snacks, TV, and a comfortable place to relax while waiting for a flight to take off.

Prefer to fly direct from Los Angeles to Seattle?

 
Find which airlines fly direct from Los Angeles Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Los Angeles to Seattle/Tacoma Intl

Monday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Tuesday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Wednesday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Thursday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Friday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Saturday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Sunday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

See more nonstop flights

Direct returns

Seattle/Tacoma Intl to Los Angeles

Monday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Tuesday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Wednesday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Thursday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Friday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Saturday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Sunday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

See more nonstop flights

More options for your flight from Los Angeles to Seattle

Complete your trip to Seattle with a hotel stay or car rental