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

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

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.

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

As of December 2025, 49 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.

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 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 week?

As of December 2025, there are 349 flights per week flying from Los Angeles to Seattle. The most common day of the week flights depart is Mon, with 34% of flights taking off on this day.

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 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.

$99 Cheap Flights from Los Angeles to Seattle in 2025/26

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Los Angeles to Seattle

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

08:54 - 11:54LAX-SEA

3h 00mdirect

10:51 - 13:46SEA-LAX

2h 55mdirect

$166Frontier

Find Deal

Thu, 15 Jan - Thu, 22 Jan

14:30 - 18:35LAX-SEA

4h 05m1 stop

18:15 - 22:20SEA-LAX

4h 05m1 stop

$171Southwest

Find Deal

Wed, 18 Feb - Mon, 23 Feb

17:35 - 21:50LAX-SEA

4h 15m1 stop

09:25 - 14:15SEA-LAX

4h 50m1 stop

$174Southwest

Find Deal

Wed, 7 Jan - Sat, 10 Jan

11:20 - 14:19LAX-SEA

2h 59mdirect

20:15 - 22:58SEA-LAX

2h 43mdirect

$179Alaska Airlines

Find Deal

Wed, 4 Feb - Tue, 10 Feb

08:25 - 12:40LAX-SEA

4h 15m1 stop

06:35 - 11:05SEA-LAX

4h 30m1 stop

$183Southwest

Find Deal

Sat, 31 Jan - Sat, 28 Feb

16:45 - 21:15LAX-SEA

4h 30m1 stop

06:35 - 13:40SEA-LAX

7h 05m1 stop

$191Southwest

Find Deal

Sat, 14 Feb - Sat, 28 Feb

16:45 - 21:15LAX-SEA

4h 30m1 stop

11:05 - 17:45SEA-LAX

6h 40m1 stop

$192Southwest

Find Deal

Sat, 14 Feb - Thu, 19 Feb

08:25 - 12:40LAX-SEA

4h 15m1 stop

05:15 - 14:05SEA-LAX

8h 50m1 stop

$194Southwest

Find Deal

Sat, 7 Feb - Mon, 9 Feb

08:50 - 17:50LAX-SEA

9h 00m1 stop

07:00 - 14:00SEA-LAX

7h 00m1 stop

$201Southwest

Find Deal

Thu, 8 Jan - Sat, 10 Jan

17:35 - 21:50LAX-SEA

4h 15m1 stop

11:20 - 15:15SEA-LAX

3h 55m1 stop

$204Southwest

Find Deal

Thu, 29 Jan - Mon, 2 Feb

Frontier flights from Los Angeles to Seattle

Our best Frontier deals on Los Angeles to Seattle flight tickets

Frontier

15 Jan

LAX08:54Los Angeles

3h 00m

SEA11:54Seattle/Tacoma Intl

22 Jan

SEA10:51Seattle/Tacoma Intl

2h 55m

LAX13:46Los Angeles

$166

Find similar

Frontier

15 Jan

LAX21:46Los Angeles

11h 50m

1 stop

SEA09:36Seattle/Tacoma Intl

22 Jan

SEA12:34Seattle/Tacoma Intl

11h 56m

1 stop

LAX00:30Los Angeles

$249

Find similar

Southwest flights from Los Angeles to Seattle

Our best Southwest deals on Los Angeles to Seattle flight tickets

Southwest

18 Feb

LAX14:30Los Angeles

4h 05m

1 stop

SEA18:35Seattle/Tacoma Intl

23 Feb

SEA18:15Seattle/Tacoma Intl

4h 05m

1 stop

LAX22:20Los Angeles

$171

Find similar

Southwest

7 Jan

LAX17:35Los Angeles

4h 15m

1 stop

SEA21:50Seattle/Tacoma Intl

10 Jan

SEA09:25Seattle/Tacoma Intl

4h 50m

1 stop

LAX14:15Los Angeles

$174

Find similar

Southwest

31 Jan

LAX08:25Los Angeles

4h 15m

1 stop

SEA12:40Seattle/Tacoma Intl

28 Feb

SEA06:35Seattle/Tacoma Intl

4h 30m

1 stop

LAX11:05Los Angeles

$183

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Thu 15/1

08:54-11:54

Nonstop3h 00m

Seattle/Tacoma Intl

Thu 22/1

10:51-13:46

Nonstop2h 55m

$166

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 18/2

14:30-18:35

1 stop4h 05m

Seattle/Tacoma Intl

Mon 23/2

18:15-22:20

1 stop4h 05m

$171

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 7/1

17:35-21:50

1 stop4h 15m

Seattle/Tacoma Intl

Sat 10/1

09:25-14:15

1 stop4h 50m

$174

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 4/2

11:20-14:19

Nonstop2h 59m

Seattle/Tacoma Intl

Tue 10/2

20:15-22:58

Nonstop2h 43m

$178

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 31/1

08:25-12:40

1 stop4h 15m

Seattle/Tacoma Intl

Sat 28/2

06:35-11:05

1 stop4h 30m

$183

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 14/2

16:45-21:15

1 stop4h 30m

Seattle/Tacoma Intl

Sat 28/2

06:35-13:40

1 stop7h 05m

$191

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 14/2

16:45-21:15

1 stop4h 30m

Seattle/Tacoma Intl

Thu 19/2

11:05-17:45

1 stop6h 40m

$192

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 7/2

08:25-12:40

1 stop4h 15m

Seattle/Tacoma Intl

Mon 9/2

05:15-14:05

1 stop8h 50m

$194

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Thu 8/1

08:50-17:50

1 stop9h 00m

Seattle/Tacoma Intl

Sat 10/1

07:00-14:00

1 stop7h 00m

$201

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Thu 29/1

17:35-21:50

1 stop4h 15m

Seattle/Tacoma Intl

Mon 2/2

11:20-15:15

1 stop3h 55m

$204

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 $226. 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 $278.

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 $284. 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 $559.

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 $299. 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 $703.

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 $337 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 $285 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?

You could potentially save up to 5% on your flight if you consider stops on a Los Angeles to Seattle flight.

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

As of December 2025, prices for Los Angeles to Seattle flights are approximately 26% cheaper 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 57m
Direct flights	Every day
Airports in Seattle	1 airport

The fastest flight from Los Angeles to Seattle takes 2h 57m

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 56m 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 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 15.31% of the total bookings. Other popular models include Airbus A320neo with 10.65%, Boeing 737-900 with 9.31%, and Boeing 737-900 Passenger/BBJ3 (winglets) with 8.07%.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Wed 31/12

Wed 7/1

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Airports servicing Washington

Spokane Airport

Popular Cities in the United States

Look for other cheap flights to Los Angelesfrom $819

Look for other cheap flights to New Yorkfrom $1,069

Look for other cheap flights to San Franciscofrom $949

Look for other cheap flights to Honolulufrom $641

Look for other cheap flights to Las Vegasfrom $1,033

Look for other cheap flights to Miamifrom $1,228

Look for other cheap flights to Orlandofrom $1,236

Look for other cheap flights to Chicagofrom $1,239

Look for other cheap flights to Dallasfrom $1,219

Look for other cheap flights to Bostonfrom $1,072

Look for other cheap flights to Washington, D.C.from $1,234

Look for other cheap flights to Atlantafrom $1,076

Cheap flights from Los Angeles to Seattle from $99

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 2/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Los Angeles to Seattle

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Frontier flights from Los Angeles to Seattle

Our best Frontier deals on Los Angeles to Seattle flight tickets

Southwest flights from Los Angeles to Seattle

Our best Southwest deals on Los Angeles to Seattle flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Los Angeles to Seattle that are best for you.

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?

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?

You could potentially save up to 5% on your flight if you consider stops on a Los Angeles to Seattle flight.

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

As of December 2025, prices for Los Angeles to Seattle flights are approximately 26% cheaper 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 Alaska 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 December 2025, 49 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 December 2025, there are 349 flights per week flying from Los Angeles to Seattle. The most common day of the week flights depart is Mon, with 34% 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 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?

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