How often are flights from Los Angeles to Seattle delayed?

Historically, on average around 10% 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 146 minutes.

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. Wednesday 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?

74 flights are operational daily from Los Angeles to Seattle as of September 2026. The most popular departure time for this route is 19:00, with 50% of flights per day taking off in the afternoon.

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.

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

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 6% of their flights experiencing any sort of delay.

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

The number of flights available between Los Angeles and Seattle is 520 per week as of September 2026. The most frequent departure day is Sat, with 19% of weekly flights leaving on this day.

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

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 were last updated today.

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 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 licence 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.

R1 937 Cheap Flights from Los Angeles to Seattle in 2026/27

Find the cheapest flights from Los Angeles to Seattle

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

9:01 - 12:02LAX Los Angeles-SEA Seattle/Tacoma Intl

3h 01mdirect

11:05 - 13:47SEA Seattle/Tacoma Intl-LAX Los Angeles

2h 42mdirect

R3 695Alaska Airlines

Wed, Dec 2 - Sat, Dec 5

12:55 - 15:48LAX Los Angeles-SEA Seattle/Tacoma Intl

2h 53mdirect

15:51 - 22:54SEA Seattle/Tacoma Intl-LAX Los Angeles

7h 03m1 stop Denver Intl

R3 793United Airlines

Wed, Jan 6 - Tue, Jan 12

19:06 - 22:05LAX Los Angeles-SEA Seattle/Tacoma Intl

2h 59mdirect

21:20 - 23:59SEA Seattle/Tacoma Intl-LAX Los Angeles

2h 39mdirect

R3 858Delta

Wed, Dec 2 - Mon, Dec 7

10:42 - 14:55LAX Los Angeles-SEA Seattle/Tacoma Intl

4h 13m1 stop Medford

18:40 - 23:12SEA Seattle/Tacoma Intl-LAX Los Angeles

4h 32m1 stop San Francisco

R3 923Alaska Airlines

Sat, Dec 5 - Sat, Dec 5

7:05 - 12:10LAX Los Angeles-SEA Seattle/Tacoma Intl

5h 05m1 stop Sacramento Intl

5:40 - 9:30SEA Seattle/Tacoma Intl-LAX Los Angeles

3h 50m1 stop Sacramento Intl

R3 939Southwest

Wed, Jan 6 - Tue, Jan 12

19:46 - 22:43LAX Los Angeles-SEA Seattle/Tacoma Intl

2h 57mdirect

7:18 - 13:28SEA Seattle/Tacoma Intl-LAX Los Angeles

6h 10m1 stop San Francisco

R3 988Alaska Airlines

Sat, Nov 7 - Mon, Nov 16

13:05 - 16:12LAX Los Angeles-SEA Seattle/Tacoma Intl

3h 07mdirect

18:30 - 21:28SEA Seattle/Tacoma Intl-LAX Los Angeles

2h 58mdirect

R4 005United Airlines

Thu, Nov 12 - Mon, Nov 16

8:30 - 11:35LAX Los Angeles-SEA Seattle/Tacoma Intl

3h 05mdirect

18:43 - 21:32SEA Seattle/Tacoma Intl-LAX Los Angeles

2h 49mdirect

R4 021United Airlines

Sat, Oct 17 - Thu, Oct 22

19:10 - 22:04LAX Los Angeles-SEA Seattle/Tacoma Intl

2h 54mdirect

12:31 - 15:13SEA Seattle/Tacoma Intl-LAX Los Angeles

2h 42mdirect

R4 037Delta

Thu, Nov 12 - Mon, Nov 16

14:45 - 22:20LAX Los Angeles-SEA Seattle/Tacoma Intl

7h 35m2 stops Las Vegas Harry Reid Intl Sacramento Intl

5:15 - 9:20SEA Seattle/Tacoma Intl-LAX Los Angeles

4h 05m1 stop Sacramento Intl

R4 102Southwest

Wed, Dec 2 - Tue, Dec 8

Cheap last-minute flights

Enter your travel dates to find the best prices.

13:25 - 20:20LAX Los Angeles-SEA Seattle/Tacoma Intl

6h 55m2 stops Phoenix Sky Harbor Intl Oakland

11:05 - 15:50SEA Seattle/Tacoma Intl-LAX Los Angeles

4h 45m1 stop Las Vegas Harry Reid Intl

R6 512Southwest

Wed, Sep 30 - Sat, Oct 24

12:40 - 20:00LAX Los Angeles-SEA Seattle/Tacoma Intl

7h 20m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

6:50 - 14:20SEA Seattle/Tacoma Intl-LAX Los Angeles

7h 30m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

R6 593Southwest

Sat, Oct 3 - Sat, Oct 31

19:10 - 21:59LAX Los Angeles-SEA Seattle/Tacoma Intl

2h 49mdirect

12:15 - 15:15SEA Seattle/Tacoma Intl-LAX Los Angeles

3h 00mdirect

R6 935United Airlines

Mon, Sep 28 - Fri, Jan 22

12:15 - 20:25LAX Los Angeles-SEA Seattle/Tacoma Intl

8h 10m2 stops Phoenix Sky Harbor Intl Sacramento Intl

12:05 - 17:15SEA Seattle/Tacoma Intl-LAX Los Angeles

5h 10m1 stop Sacramento Intl

R7 163Southwest

Sat, Oct 3 - Tue, Oct 13

13:55 - 21:15LAX Los Angeles-SEA Seattle/Tacoma Intl

7h 20m2 stops Las Vegas Harry Reid Intl Oakland

5:35 - 13:00SEA Seattle/Tacoma Intl-LAX Los Angeles

7h 25m2 stops Phoenix Sky Harbor Intl Las Vegas Harry Reid Intl

R7 260Southwest

Mon, Sep 28 - Tue, Oct 27

9:25 - 14:17LAX Los Angeles-SEA Seattle/Tacoma Intl

4h 52m1 stop San Francisco

15:35 - 20:30SEA Seattle/Tacoma Intl-LAX Los Angeles

4h 55m1 stop San Francisco

R7 277United Airlines

Thu, Oct 1 - Sat, Oct 31

12:40 - 20:00LAX Los Angeles-SEA Seattle/Tacoma Intl

7h 20m2 stops Las Vegas Harry Reid Intl San Diego

5:35 - 13:00SEA Seattle/Tacoma Intl-LAX Los Angeles

7h 25m2 stops Phoenix Sky Harbor Intl Las Vegas Harry Reid Intl

R7 635Southwest

Sat, Oct 3 - Tue, Oct 13

12:10 - 16:50LAX Los Angeles-SEA Seattle/Tacoma Intl

4h 40m1 stop Las Vegas Harry Reid Intl

8:45 - 17:00SEA Seattle/Tacoma Intl-LAX Los Angeles

8h 15m2 stops Oakland Las Vegas Harry Reid Intl

R8 400Southwest

Tue, Sep 29 - Tue, Oct 6

12:40 - 20:25LAX Los Angeles-SEA Seattle/Tacoma Intl

7h 45m2 stops Las Vegas Harry Reid Intl Sacramento Intl

6:15 - 11:50SEA Seattle/Tacoma Intl-LAX Los Angeles

5h 35m1 stop Sacramento Intl

R8 465Southwest

Sat, Oct 3 - Sun, Oct 11

15:47 - 18:33LAX Los Angeles-SEA Seattle/Tacoma Intl

2h 46mdirect

20:48 - 23:37SEA Seattle/Tacoma Intl-LAX Los Angeles

2h 49mdirect

R8 498Alaska Airlines

Wed, Sep 30 - Wed, Sep 30

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Alaska Airlines flights from Los Angeles to Seattle

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

Alaska Airlines

Dec 2

LAX9:01Los Angeles

3h 01m

SEA12:02Seattle/Tacoma Intl

Dec 5

SEA11:05Seattle/Tacoma Intl

2h 42m

LAX13:47Los Angeles

R3 695

Alaska Airlines

Dec 5

LAX10:42Los Angeles

4h 13m

1 stop

SEA14:55Seattle/Tacoma Intl

Dec 5

SEA18:40Seattle/Tacoma Intl

4h 32m

1 stop

LAX23:12Los Angeles

R3 923

Alaska Airlines

Nov 7

LAX19:46Los Angeles

2h 57m

SEA22:43Seattle/Tacoma Intl

Nov 16

SEA7:18Seattle/Tacoma Intl

6h 10m

1 stop

LAX13:28Los Angeles

R3 988

United Airlines flights from Los Angeles to Seattle

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

United Airlines

Jan 6

LAX12:55Los Angeles

2h 53m

SEA15:48Seattle/Tacoma Intl

Jan 12

SEA15:51Seattle/Tacoma Intl

7h 03m

1 stop

LAX22:54Los Angeles

R3 793

United Airlines

Nov 12

LAX13:05Los Angeles

3h 07m

SEA16:12Seattle/Tacoma Intl

Nov 16

SEA18:30Seattle/Tacoma Intl

2h 58m

LAX21:28Los Angeles

R4 005

United Airlines

Oct 17

LAX8:30Los Angeles

3h 05m

SEA11:35Seattle/Tacoma Intl

Oct 22

SEA18:43Seattle/Tacoma Intl

2h 49m

LAX21:32Los Angeles

R4 021

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Wed 2/12

9:01-12:02

Nonstop3h 01m

Seattle/Tacoma Intl

Sat 5/12

11:05-13:47

Nonstop2h 42m

R3 695

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Wed 6/1

12:55-15:48

Nonstop2h 53m

Seattle/Tacoma Intl

Tue 12/1

15:51-22:54

1 stop7h 03m

R3 793

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Wed 2/12

19:06-22:05

Nonstop2h 59m

Seattle/Tacoma Intl

Mon 7/12

21:20-23:59

Nonstop2h 39m

R3 858

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Sat 5/12

10:42-14:55

1 stop4h 13m

Seattle/Tacoma Intl

Sat 5/12

18:40-23:12

1 stop4h 32m

R3 923

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Wed 6/1

7:05-12:10

1 stop5h 05m

Seattle/Tacoma Intl

Tue 12/1

5:40-9:30

1 stop3h 50m

R3 939

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Sat 7/11

19:46-22:43

Nonstop2h 57m

Seattle/Tacoma Intl

Mon 16/11

7:18-13:28

1 stop6h 10m

R3 988

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Thu 12/11

13:05-16:12

Nonstop3h 07m

Seattle/Tacoma Intl

Mon 16/11

18:30-21:28

Nonstop2h 58m

R4 005

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Sat 17/10

8:30-11:35

Nonstop3h 05m

Seattle/Tacoma Intl

Thu 22/10

18:43-21:32

Nonstop2h 49m

R4 021

Fastest return journey

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Thu 12/11

19:10-22:04

Nonstop2h 54m

Seattle/Tacoma Intl

Mon 16/11

12:31-15:13

Nonstop2h 42m

R4 037

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Wed 2/12

14:45-22:20

2 stops7h 35m

Seattle/Tacoma Intl

Tue 8/12

5:15-9:20

1 stop4h 05m

R4 102

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 typical price of a round-trip flight between Los Angeles and Seattle?

Prices are currently typical for flights on this route.

Typical prices usually range from R2 637 to R5 242.
The lowest price recently found on this route was R3 695.

What is the cheapest month to fly to Seattle?

The cheapest month to fly to Seattle from Los Angeles is in March. Flight prices, which tend to average around R3 321, are often lower during this time because this is during the off-season. If you aren’t able to travel to Seattle during the month of March, then flying in May is also cheap. Prices for this month can be found on momondo for an average of R3 549.

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 from Los Angeles 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 R4 171 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 R3 305 on momondo.

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

There are 3 cabin classes available to choose from on Los Angeles to Seattle 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 September 2026, 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

Best price found	R1 937
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 R1 937. The best return flight deal from Los Angeles to Seattle found on momondo in the last 72 hours is R3 695.

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

Frequently asked questions about flying from Los Angeles to Seattle

How far is Los Angeles to Seattle/Tacoma Intl by plane?
There are 1543,7 km between Los Angeles and Seattle/Tacoma Intl.
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 were last updated today.
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 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 licence 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?
momondo data reveals that the most frequently booked plane model on the route from Los Angeles to Seattle is Airbus A321neo, representing 18,03% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 17,24%, Airbus A321-100/200 at 10,63%, and Boeing 737-900 at 8,97%.

Lynnwood

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?

Flights from Los Angeles to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Seattle from Los Angeles. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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.