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Cheap flights from Los Angeles to Seattle from $84

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Los Angeles to Seattle departing on 11/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Frontier Logo
9:08 pm - 11:59 pmLAX-SEA
2h 51mnonstop
Frontier Logo
7:00 am - 12:27 amSEA-LAX
17h 27m1 stop
$142Frontier
Find Deal
Sat, Sep 27 - Tue, Sep 30
Frontier Logo
4:17 pm - 1:37 pmLAX-SEA
21h 20m1 stop
Frontier Logo
12:58 pm - 9:26 amSEA-LAX
20h 28m1 stop
$143Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
Frontier Logo
9:17 pm - 12:07 pmLAX-SEA
14h 50m1 stop
Frontier Logo
4:11 pm - 4:44 pmSEA-LAX
24h 33m1 stop
$144Frontier
Find Deal
Fri, Oct 17 - Mon, Oct 20
Frontier Logo
9:17 pm - 12:07 pmLAX-SEA
14h 50m1 stop
Frontier Logo
2:31 pm - 1:18 pmSEA-LAX
22h 47m1 stop
$145Frontier
Find Deal
Fri, Oct 24 - Mon, Oct 27
Frontier Logo
5:41 pm - 8:37 pmLAX-SEA
2h 56mnonstop
Frontier Logo
2:22 pm - 8:27 pmSEA-LAX
6h 05m1 stop
$146Frontier
Find Deal
Fri, Oct 31 - Fri, Nov 7
Frontier Logo
4:41 pm - 7:37 pmLAX-SEA
2h 56mnonstop
Frontier Logo
12:58 pm - 12:25 amSEA-LAX
11h 27m1 stop
$147Frontier
Find Deal
Sat, Nov 8 - Tue, Nov 11
Frontier Logo
10:39 am - 4:51 pmLAX-SEA
6h 12m1 stop
Frontier Logo
11:41 am - 2:29 pmSEA-LAX
2h 48mnonstop
$148Frontier
Find Deal
Fri, Dec 12 - Sun, Dec 14
Frontier Logo
1:37 pm - 10:59 pmLAX-SEA
9h 22m1 stop
Frontier Logo
1:02 pm - 3:51 pmSEA-LAX
2h 49mnonstop
$149Frontier
Find Deal
Wed, Oct 1 - Wed, Oct 8
Multiple Airlines Logo
10:32 am - 2:55 pmLAX-SEA
4h 23m1 stop
Multiple Airlines Logo
9:03 am - 11:52 amSEA-LAX
2h 49mnonstop
$163Multiple Airlines
Find Deal
Tue, Oct 28 - Sun, Nov 2
Multiple Airlines Logo
4:52 pm - 7:48 pmLAX-SEA
2h 56mnonstop
Multiple Airlines Logo
6:30 am - 9:15 amSEA-LAX
2h 45mnonstop
$170Multiple Airlines
Find Deal
Sat, Oct 11 - Tue, Oct 14

Frontier flights from Los Angeles to Seattle

Our best Frontier deals on Los Angeles to Seattle flight tickets
Frontier
Sep 27
LAX9:08 pmLos Angeles
2h 51m
SEA11:59 pmSeattle/Tacoma Intl
Sep 30
SEA7:00 amSeattle/Tacoma Intl
17h 27m
1 stop
LAX12:27 amLos Angeles
$142
Find similar
Frontier
Sep 23
LAX1:37 pmLos Angeles
9h 22m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
Sep 27
SEA9:39 pmSeattle/Tacoma Intl
2h 50m
LAX12:29 amLos Angeles
$143
Find similar
Frontier
Oct 17
LAX9:17 pmLos Angeles
14h 50m
1 stop
SEA12:07 pmSeattle/Tacoma Intl
Oct 20
SEA4:11 pmSeattle/Tacoma Intl
24h 33m
1 stop
LAX4:44 pmLos Angeles
$144
Find similar

momondo Fare Finder

 
Customize 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, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Los Angeles to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 9/27

9:08 pm-11:59 pm

Nonstop2h 51m

Seattle/Tacoma Intl

Tue 9/30

7:00 am-12:27 am

1 stop17h 27m

$142

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Thu 11/13

4:17 pm-1:37 pm

1 stop21h 20m

Seattle/Tacoma Intl

Sun 11/16

12:58 pm-9:26 am

1 stop20h 28m

$143

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Fri 10/17

9:17 pm-12:07 pm

1 stop14h 50m

Seattle/Tacoma Intl

Mon 10/20

4:11 pm-4:44 pm

1 stop24h 33m

$144

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Fri 10/24

9:17 pm-12:07 pm

1 stop14h 50m

Seattle/Tacoma Intl

Mon 10/27

2:31 pm-1:18 pm

1 stop22h 47m

$145

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Fri 10/31

5:41 pm-8:37 pm

Nonstop2h 56m

Seattle/Tacoma Intl

Fri 11/7

2:22 pm-8:27 pm

1 stop6h 05m

$146

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 11/8

4:41 pm-7:37 pm

Nonstop2h 56m

Seattle/Tacoma Intl

Tue 11/11

12:58 pm-12:25 am

1 stop11h 27m

$147

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Fri 12/12

10:39 am-4:51 pm

1 stop6h 12m

Seattle/Tacoma Intl

Sun 12/14

11:41 am-2:29 pm

Nonstop2h 48m

$148

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 10/1

1:37 pm-10:59 pm

1 stop9h 22m

Seattle/Tacoma Intl

Wed 10/8

1:02 pm-3:51 pm

Nonstop2h 49m

$149

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 10/28

10:32 am-2:55 pm

1 stop4h 23m

Seattle/Tacoma Intl

Sun 11/2

9:03 am-11:52 am

Nonstop2h 49m

$163

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 10/11

4:52 pm-7:48 pm

Nonstop2h 56m

Seattle/Tacoma Intl

Tue 10/14

6:30 am-9:15 am

Nonstop2h 45m

$170

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Los Angeles to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Los Angeles to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $148. If you don’t want to visit Seattle in January, then you should wait until February to fly from Los Angeles, when ticket prices are also cheap, with an average price of $177.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Los Angeles is on a Friday. momondo users have found tickets for Friday departures for as low as $267. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Los Angeles because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $348.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Los Angeles in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $243 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $322. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Los Angeles to Seattle/Tacoma Intl flight route?

Fly from Los Angeles to Seattle/Tacoma Intl for the best Los Angeles - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Los Angeles when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $214 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Los Angeles for as low as $190 on momondo.

What cabin class options are available on Los Angeles to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Los Angeles to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Los Angeles to Seattle flights?

No. A direct flight is the cheapest option for a flight between Los Angeles to Seattle.

How have Los Angeles to Seattle flight prices changed over time?

As of September 2025, prices for Los Angeles to Seattle flights are approximately 14% more expensive when compared to flights at the same time last year.

When to book flights from Los Angeles to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Los Angeles to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Los Angeles to Seattle (LAX to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Los Angeles to Seattle

Best Price Found

$138

Fastest flight time

2h 48m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Seattle

1 airport
The best one-way flight to Seattle from Los Angeles in the past 72 hours is $138. The best round-trip flight deal from Los Angeles to Seattle found on momondo in the last 72 hours is $215.
The fastest flight from Los Angeles to Seattle takes 2h 48m
Direct flights go from Los Angeles to Seattle on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Delta.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • How far is Los Angeles to Seattle/Tacoma Intl by plane?

    Los Angeles and Seattle/Tacoma Intl are 959.2 mi apart from one another. 2h 51m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Los Angeles Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Los Angeles Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Los Angeles Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Los Angeles Airport to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Los Angeles Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Los Angeles to Seattle?

  • What is the most popular airline from Los Angeles to Seattle?

Best airlines flying from Los Angeles to Seattle

Compare and see reviews for airlines that fly from Los Angeles to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $47Free CancellationRating
5.8
3,172 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $69Free CancellationRating
6.3
8,015 reviews
Search Spirit Airlines flights
Hawaiian AirlinesPriceFrom $118Free CancellationRating
7.8
2,724 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $126Free CancellationRating
7.9
7,954 reviews
Search Delta flights
Alaska AirlinesPriceFrom $148Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $155Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $158Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
American AirlinesPriceFrom $163Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

  • Alaska Airlines Flights From Los Angeles to Seattle

    Alaska Airlines flight deals from Los Angeles to Seattle start from $148 round-trip. Over the 16 Alaska Airlines flights for this route in a normal week, average airfare is usually $254 round-trip - but some users have found much cheaper deals with momondo.

  • Southwest Flights From Los Angeles to Seattle

    $155 is the best Southwest flight deal from Los Angeles to Seattle found on momondo over the last 72 hours. The average Southwest ticket price found was closer to $233, however, with flight time and availability significantly affecting the price. Southwest (8.0/10 from 4,242 user reviews) flies into Seattle from Los Angeles 10 times in an average week so prices can vary.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Kirkland
Tukwila
Shoreline
Lakewood
Centralia
Fife
Cle Elum
Redmond
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Los Angeles to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Los Angeles to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Los Angeles to Seattle with flexible booking policies on momondo?

All flight searches from Los Angeles to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Los Angeles to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Los Angeles to Seattle.

I’m not ready to book a flight from Los Angeles to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Los Angeles to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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