What is the cheapest airline that flies from Los Angeles to Seattle/Tacoma Intl?

Southwest and United Airlines are the most popular carriers operating from Los Angeles to Seattle/Tacoma Intl

How many flights depart from Los Angeles to Seattle on average per week?

As of November 2025, there are 585 flights per week flying from Los Angeles to Seattle. The most common day of the week flights depart is Mon, with 19% of flights taking off on this day.

How often are flights from Los Angeles to Seattle delayed?

Historically, on average around 11% of flights between Los Angeles and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

How many flights depart from Los Angeles to Seattle on average per day?

As of November 2025, 83 flights take off from Los Angeles and land in Seattle each day. The most common flight departure time for this route is 19:00, with 37% of daily flights taking off at midday.

What is the most punctual flight time for Los Angeles to Seattle flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Los Angeles to Seattle flights?

According to our data, Atlas Air have had the fewest delays on this route over the last 12 months, with no flights being classified as delayed.

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 updated daily.

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

As of November 2025, there is 1 operator available to choose from 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?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. 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 required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$116 Cheap Flights from Los Angeles to Seattle in 2025/26

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15:02 - 18:08LAX-SEA

3h 06mdirect

12:19 - 20:32SEA-LAX

8h 13m1 stop

$201Frontier

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Thu, 8 Jan - Thu, 15 Jan

07:00 - 14:49LAX-SEA

7h 49m2 stops

17:53 - 20:36SEA-LAX

2h 43mdirect

$234Alaska Airlines

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Tue, 13 Jan - Tue, 13 Jan

08:25 - 12:40LAX-SEA

4h 15m1 stop

07:00 - 14:00SEA-LAX

7h 00m1 stop

$238Southwest

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Sat, 24 Jan - Sat, 31 Jan

18:59 - 22:02LAX-SEA

3h 03mdirect

05:00 - 07:52SEA-LAX

2h 52mdirect

$243Alaska Airlines

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Wed, 24 Dec - Tue, 30 Dec

08:27 - 11:41LAX-SEA

3h 14mdirect

12:24 - 15:23SEA-LAX

2h 59mdirect

$245United Airlines

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Wed, 7 Jan - Mon, 12 Jan

12:55 - 20:20LAX-SEA

7h 25m1 stop

06:25 - 10:30SEA-LAX

4h 05m1 stop

$246Southwest

Find Deal

Sat, 17 Jan - Sun, 18 Jan

18:10 - 23:40LAX-SEA

5h 30m1 stop

08:10 - 12:20SEA-LAX

4h 10m1 stop

$252Southwest

Find Deal

Tue, 23 Dec - Thu, 1 Jan

10:00 - 18:35LAX-SEA

8h 35m1 stop

06:50 - 15:50SEA-LAX

9h 00m2 stops

$254Southwest

Find Deal

Sat, 14 Feb - Sat, 21 Feb

19:59 - 23:02LAX-SEA

3h 03mdirect

19:11 - 22:00SEA-LAX

2h 49mdirect

$259Alaska Airlines

Find Deal

Wed, 24 Dec - Fri, 2 Jan

07:25 - 11:35LAX-SEA

4h 10m1 stop

08:10 - 12:20SEA-LAX

4h 10m1 stop

$260Southwest

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Tue, 16 Dec - Wed, 17 Dec

Delta flights from Los Angeles to Seattle

Our best Delta deals on Los Angeles to Seattle flight tickets

Delta

17 Jan

LAX09:55Los Angeles

3h 02m

SEA12:57Seattle/Tacoma Intl

19 Jan

SEA11:17Seattle/Tacoma Intl

2h 38m

LAX13:55Los Angeles

$259

Find similar

Delta

13 Jan

LAX14:05Los Angeles

2h 53m

SEA16:58Seattle/Tacoma Intl

16 Jan

SEA19:59Seattle/Tacoma Intl

13h 01m

1 stop

LAX09:00Los Angeles

$311

Find similar

Delta

15 Dec

LAX17:54Los Angeles

2h 56m

SEA20:50Seattle/Tacoma Intl

17 Dec

SEA07:10Seattle/Tacoma Intl

2h 55m

LAX10:05Los Angeles

$320

Find similar

United Airlines flights from Los Angeles to Seattle

Our best United Airlines deals on Los Angeles to Seattle flight tickets

United Airlines

7 Jan

LAX08:27Los Angeles

3h 14m

SEA11:41Seattle/Tacoma Intl

12 Jan

SEA12:24Seattle/Tacoma Intl

2h 59m

LAX15:23Los Angeles

$245

Find similar

United Airlines

23 Jan

LAX16:15Los Angeles

4h 57m

1 stop

SEA21:12Seattle/Tacoma Intl

26 Jan

SEA12:24Seattle/Tacoma Intl

2h 59m

LAX15:23Los Angeles

$283

Find similar

United Airlines

16 Dec

LAX13:33Los Angeles

7h 27m

1 stop

SEA21:00Seattle/Tacoma Intl

15 Jan

SEA09:00Seattle/Tacoma Intl

2h 59m

LAX11:59Los Angeles

$290

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Thu 8/1

15:02-18:08

Nonstop3h 06m

Seattle/Tacoma Intl

Thu 15/1

12:19-20:32

1 stop8h 13m

$201

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 13/1

07:00-14:49

2 stops7h 49m

Seattle/Tacoma Intl

Tue 13/1

17:53-20:36

Nonstop2h 43m

$234

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 24/1

08:25-12:40

1 stop4h 15m

Seattle/Tacoma Intl

Sat 31/1

07:00-14:00

1 stop7h 00m

$238

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 24/12

18:59-22:02

Nonstop3h 03m

Seattle/Tacoma Intl

Tue 30/12

05:00-07:52

Nonstop2h 52m

$243

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 7/1

08:27-11:41

Nonstop3h 14m

Seattle/Tacoma Intl

Mon 12/1

12:24-15:23

Nonstop2h 59m

$245

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 17/1

12:55-20:20

1 stop7h 25m

Seattle/Tacoma Intl

Sun 18/1

06:25-10:30

1 stop4h 05m

$246

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 23/12

18:10-23:40

1 stop5h 30m

Seattle/Tacoma Intl

Thu 1/1

08:10-12:20

1 stop4h 10m

$252

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 14/2

10:00-18:35

1 stop8h 35m

Seattle/Tacoma Intl

Sat 21/2

06:50-15:50

2 stops9h 00m

$254

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 24/12

19:59-23:02

Nonstop3h 03m

Seattle/Tacoma Intl

Fri 2/1

19:11-22:00

Nonstop2h 49m

$259

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 16/12

07:25-11:35

1 stop4h 10m

Seattle/Tacoma Intl

Wed 17/12

08:10-12:20

1 stop4h 10m

$260

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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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Seattle?

The month of January is, on average, the cheapest month to fly to Seattle from Los Angeles, with most prices found around $229. If you are unable to visit Seattle during the month of January, then departing from Los Angeles during the month February is also very affordable. Most momondo users find prices during this month for around $282.

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

The cheapest day to depart from Los Angeles to Seattle is on a Saturday. Travellers who choose to depart for Seattle on a Saturday will often find tickets for as low as $288. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Los Angeles to Seattle for around $563.

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

According to our data, the cheapest time of day to fly to Seattle is in the afternoon. momondo users have found flights departing from Los Angeles to Seattle in the afternoon for as low as $304. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Seattle is in the evening when prices are around $714.

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 $342 when searching weeks before you fly. 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 $291 on momondo.

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

There are 3 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 November 2025, prices for Los Angeles to Seattle flights are approximately 9% 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 return 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

Fastest flight time	2h 53m
Direct flights	Every day
Airports in Seattle	1 airport

The fastest flight from Los Angeles to Seattle takes 2h 53m

Direct flights go from Los Angeles to Seattle every day.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

Search flight deals

How far is Los Angeles to Seattle/Tacoma Intl by plane?
The distance between Los Angeles and Seattle/Tacoma Intl is about 1543.7 km. 2h 53m 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 updated daily.
How many operators does momondo search for flights from Los Angeles Airport to Seattle/Tacoma Intl Airport?
As of November 2025, there is 1 operator available to choose from 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?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. 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 required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Los Angeles to Seattle?
Based on momondo bookings for flights between Los Angeles and Seattle, the leading plane model is Boeing 737-800 Passenger/BBJ2 (winglets), making up 14.41% of the total bookings. Other popular models include Boeing 737-900 Passenger/BBJ3 (winglets) with 10.76%, Airbus A320neo with 9.04%, and Boeing 737-900 with 8.37%.
What is the most popular airline from Los Angeles to Seattle?
Based on momondo bookings for flights between Los Angeles and Seattle, the leading airline is Alaska Airlines, making up 100% of the total bookings.

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
Alaska Airlines	PriceFrom $283	Free cancellation	Rating 8.0 11,341 reviews		Search Alaska Airlines flights

Alaska Airlines Flights From Los Angeles to Seattle
Across 21 Alaska Airlines flights from Los Angeles to Seattle this week, the average price was $389, with the best Alaska Airlines deals starting from $283 round-trip. 11,341 users have rated Alaska Airlines on momondo, with an average score of 8.0/10.

Leavenworth

SeaTac

Why use momondo?

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

It is quick and easy to find Los Angeles to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

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

momondo does allow users to show only those flights to Seattle from Los Angeles which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Los Angeles to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Seattle from Los Angeles. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Seattle trip

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

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Cheap flights from Los Angeles to Seattle from $116

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 24/1. 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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Delta flights from Los Angeles to Seattle

Our best Delta deals on Los Angeles to Seattle flight tickets

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Our best United Airlines deals on Los Angeles to Seattle flight tickets

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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?

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

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

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?

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

There are 3 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 November 2025, prices for Los Angeles to Seattle flights are approximately 9% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Los Angeles to Seattle/Tacoma Intl?

Southwest and United Airlines are the most popular carriers operating from Los Angeles to Seattle/Tacoma Intl

How often are flights from Los Angeles to Seattle delayed?

Historically, on average around 11% of flights between Los Angeles and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

What is the most punctual flight time for Los Angeles to Seattle flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Los Angeles to Seattle flights?

According to our data, Atlas Air have had the fewest delays on this route over the last 12 months, with no flights being classified as delayed.

How many flights depart from Los Angeles to Seattle on average per day?

As of November 2025, 83 flights take off from Los Angeles and land in Seattle each day. The most common flight departure time for this route is 19:00, with 37% of daily flights taking off at midday.

How many flights depart from Los Angeles to Seattle on average per week?

As of November 2025, there are 585 flights per week flying from Los Angeles to Seattle. The most common day of the week flights depart is Mon, with 19% of flights taking off on this day.

When to book flights from Los Angeles to Seattle

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

Fastest flight time

Direct flights

Airports in Seattle

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

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

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?

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

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

Alaska Airlines Flights From Los Angeles to Seattle

Travelling to a place near Seattle?

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Seattle trip

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

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington