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

According to our data, SkyWest Airlines have had the fewest delays on this route over the last 12 months, with about 3% of their flights experiencing any sort of delay.

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.

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

The number of flights available between Los Angeles and Seattle is 86 per day as of December 2025. The most frequent departure time is 19:00, with 39% of daily flights leaving at midday.

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

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

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 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, 606 flights take off from Los Angeles and land in Seattle each week. The most common flight departure day for this route is Thu, with 19% of weekly 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 refreshed on a daily basis.

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 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 necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£40 Cheap Flights from Los Angeles to Seattle in 2025/26

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07:00 - 13:34

LAX

SEA

6h 34m1 stop

14:02 - 16:50

SEA

LAX

2h 48mdirect

£83Frontier

Sat, 10 Jan - Sat, 17 Jan

13:15 - 16:29

LAX

SEA

3h 14mdirect

09:00 - 11:59

SEA

LAX

2h 59mdirect

£104United Airlines

Sat, 10 Jan - Sat, 17 Jan

20:58 - 23:59

LAX

SEA

3h 01mdirect

19:52 - 22:40

SEA

LAX

2h 48mdirect

£105American Airlines

Sat, 24 Jan - Sat, 31 Jan

16:15 - 21:12

LAX

SEA

4h 57m1 stop

09:00 - 11:59

SEA

LAX

2h 59mdirect

£108United Airlines

Tue, 20 Jan - Tue, 3 Feb

14:30 - 18:35

LAX

SEA

4h 05m1 stop

12:45 - 16:55

SEA

LAX

4h 10m1 stop

£111Southwest

Tue, 6 Jan - Tue, 13 Jan

16:45 - 19:55

LAX

SEA

3h 10mdirect

09:00 - 11:59

SEA

LAX

2h 59mdirect

£113United Airlines

Tue, 20 Jan - Tue, 3 Feb

08:25 - 12:40

LAX

SEA

4h 15m1 stop

09:05 - 13:30

SEA

LAX

4h 25m1 stop

£114Southwest

Sat, 10 Jan - Sat, 17 Jan

08:25 - 12:40

LAX

SEA

4h 15m1 stop

06:05 - 12:10

SEA

LAX

6h 05m1 stop

£114Southwest

Sat, 10 Jan - Sun, 18 Jan

19:29 - 22:24

LAX

SEA

2h 55mdirect

19:35 - 22:21

SEA

LAX

2h 46mdirect

£117Delta

Wed, 7 Jan - Wed, 14 Jan

08:25 - 12:40

LAX

SEA

4h 15m1 stop

18:15 - 22:20

SEA

LAX

4h 05m1 stop

£118Southwest

Sat, 10 Jan - Sun, 11 Jan

United Airlines flights from Los Angeles to Seattle

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

United Airlines

25 Dec

LAX13:10Los Angeles

3h 14m

SEA16:24Seattle/Tacoma Intl

1 Jan

SEA09:06Seattle/Tacoma Intl

2h 59m

LAX12:05Los Angeles

£104

Find similar

United Airlines

20 Jan

LAX16:15Los Angeles

4h 57m

1 stop

SEA21:12Seattle/Tacoma Intl

3 Feb

SEA09:00Seattle/Tacoma Intl

2h 59m

LAX11:59Los Angeles

£108

Find similar

United Airlines

20 Jan

LAX16:45Los Angeles

3h 10m

SEA19:55Seattle/Tacoma Intl

3 Feb

SEA09:00Seattle/Tacoma Intl

2h 59m

LAX11:59Los Angeles

£113

Find similar

Alaska Airlines flights from Los Angeles to Seattle

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

Alaska Airlines

7 Jan

LAX08:24Los Angeles

6h 33m

1 stop

SEA14:57Seattle/Tacoma Intl

14 Jan

SEA11:35Seattle/Tacoma Intl

5h 47m

1 stop

LAX17:22Los Angeles

£131

Find similar

Alaska Airlines

8 Jan

LAX11:06Los Angeles

7h 37m

1 stop

SEA18:43Seattle/Tacoma Intl

10 Jan

SEA11:35Seattle/Tacoma Intl

5h 47m

1 stop

LAX17:22Los Angeles

£139

Find similar

Alaska Airlines

7 Jan

LAX13:34Los Angeles

7h 32m

1 stop

SEA21:06Seattle/Tacoma Intl

14 Jan

SEA10:59Seattle/Tacoma Intl

2h 42m

LAX13:41Los Angeles

£140

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 10/1

07:00-13:34

1 stop6h 34m

Seattle/Tacoma Intl

Sat 17/1

14:02-16:50

Nonstop2h 48m

£83

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 10/1

13:15-16:29

Nonstop3h 14m

Seattle/Tacoma Intl

Sat 17/1

09:00-11:59

Nonstop2h 59m

£104

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 24/1

20:58-23:59

Nonstop3h 01m

Seattle/Tacoma Intl

Sat 31/1

19:52-22:40

Nonstop2h 48m

£105

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 20/1

16:15-21:12

1 stop4h 57m

Seattle/Tacoma Intl

Tue 3/2

09:00-11:59

Nonstop2h 59m

£108

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 6/1

14:30-18:35

1 stop4h 05m

Seattle/Tacoma Intl

Tue 13/1

12:45-16:55

1 stop4h 10m

£111

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 20/1

16:45-19:55

Nonstop3h 10m

Seattle/Tacoma Intl

Tue 3/2

09:00-11:59

Nonstop2h 59m

£113

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 10/1

08:25-12:40

1 stop4h 15m

Seattle/Tacoma Intl

Sat 17/1

09:05-13:30

1 stop4h 25m

£114

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 10/1

08:25-12:40

1 stop4h 15m

Seattle/Tacoma Intl

Sun 18/1

06:05-12:10

1 stop6h 05m

£114

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 7/1

19:29-22:24

Nonstop2h 55m

Seattle/Tacoma Intl

Wed 14/1

19:35-22:21

Nonstop2h 46m

£117

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 10/1

08:25-12:40

1 stop4h 15m

Seattle/Tacoma Intl

Sun 11/1

18:15-22:20

1 stop4h 05m

£118

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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 cheapest month to fly to Seattle from Los Angeles is in January. Flight prices, which tend to average around £117, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Seattle, with average flight prices from Los Angeles averaging around £137.

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

According to our data, Friday is the cheapest day to fly to Seattle from Los Angeles. The lowest ticket price found for a Friday departure recently was £181. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Saturday is £839.

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 evening. momondo users have found flights departing from Los Angeles to Seattle in the evening for as low as £318. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at midday are often more expensive, with an average ticket price of £768.

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 £165 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 £142 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.

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

As of December 2025, prices for Los Angeles to Seattle flights are approximately 27% 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

Best price found	£268
Fastest flight time	3h 04m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Los Angeles in the past 72 hours is £268. The best return flight deal from Los Angeles to Seattle found on momondo in the last 72 hours is £1,049.

The fastest flight from Los Angeles to Seattle takes 3h 04m

Direct flights go from Los Angeles to Seattle every day.

There is 1 airport in Seattle. From Los Angeles there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

How far is Los Angeles to Seattle/Tacoma Intl by plane?
A flight from Los Angeles to Seattle/Tacoma Intl will travel around 959.2 mi. Flights usually cover this in 3h 04m, depending on flying conditions and air traffic around both airports.
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 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 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 necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Los Angeles to Seattle?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Los Angeles to Seattle is Boeing 737-800 Passenger/BBJ2 (winglets) (15.46% of total bookings). The next most popular plane models are Airbus A320neo (11.34%), Boeing 737-900 (9.39%), and Boeing 787-9 Dreamliner (6.79%).

Fife

Renton

SeaTac

Tukwila

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Los Angeles.

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?

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?

Of course. momondo tracks the price of Los Angeles to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Los Angeles to Seattle from £50

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 8/1. 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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How to get the cheapest flight ticket from Los Angeles to Seattle

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 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.

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

As of December 2025, prices for Los Angeles to Seattle flights are approximately 27% 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?

United Airlines, Frontier, and Southwest 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, SkyWest Airlines have had the fewest delays on this route over the last 12 months, with about 3% of their flights experiencing any sort of delay.

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

The number of flights available between Los Angeles and Seattle is 86 per day as of December 2025. The most frequent departure time is 19:00, with 39% of daily flights leaving at midday.

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

As of December 2025, 606 flights take off from Los Angeles and land in Seattle each week. The most common flight departure day for this route is Thu, with 19% of weekly 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

Best price found

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