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

Tuesday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, United Airlines has had the lowest number of delays on this route, with just 6% of flights being delayed.

How often are flights from Los Angeles to Seattle delayed?

About 11% of weekly flights between Los Angeles and Seattle have experienced delays in the past year, with the average delay time being 144 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

How popular is this Los Angeles to Seattle flight route?

Within the past month, 6 users have taken a look at flights from Los Angeles Los Angeles to Seattle/Tacoma Intl.

How long is the flight from Los Angeles to Seattle?

For as low as C$ 216, Alaska Airlines can have you in Seattle from Los Angeles in 2h 48m. There are 1535 km between Los Angeles and Seattle. Generally, flights for this route are direct.

What is the cheapest airline to fly from Los Angeles to Seattle round-trip?

According to our current data, Frontier (C$ 162), offers the cheapest pricing from Los Angeles to Seattle. This flight start at 53% lower than the current average price 3 months from now.

Weekly flight availability from Los Angeles to Seattle

The most flights from LAX to SEA are scheduled on a Tuesday (108 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (41 on average).

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What are the cheapest flights from Los Angeles to Seattle?

The cheapest flight price from Los Angeles to Seattle is C$ 158. On average you can expect to pay C$ 313. The most popular route, (Los Angeles - Seattle/Tacoma Intl), can usually be booked for C$ 186.

What are the most reliable airlines from Los Angeles to Seattle?

The top 3 most reliable airlines when flying from Los Angeles to Seattle are Frontier (93%), Volaris (93%) and WestJet (92%).

What airports do I use to fly from Los Angeles to Seattle?

You will need to book a flight from Los Angeles to Seattle/Tacoma Intl if you want to fly from Los Angeles to Seattle. At least 1 airline has flights from Los Angeles (LAX) to Seattle/Tacoma Intl (SEA) on a regular basis. There are 61 flights to Seattle from the Los Angeles airport per day. If you manage to book one that is nonstop, then you can expect the flight time from LAX to SEA to be around 2h 49m.

Can I find deals for flights from Los Angeles to Seattle that include hotel bookings?

Yes. In addition to deals on Los Angeles to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Los Angeles to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Los Angeles to Seattle.

Can I find deals for business class flights from Los Angeles to Seattle?

Yes. Cheapflights offers flight deals from Los Angeles to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 97+ Cheap Flights from Los Angeles to Seattle

Cheapflights Tip: The best prices from Los Angeles to Seattle/Tacoma Intl are usually found in March or February, booked 70 days in advance, depart on a Tuesday or Sunday and return on a Thursday

Cheap flight deals from Los Angeles to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Los Angeles to Seattle
Explore the most affordable flight options available from Los Angeles to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Tue 6/102:27 p.m. -

1 stop5h 29m

Tue 13/108:00 p.m. -

Nonstop2h 46m

Deal found 8/9C$ 186

Fri 2/108:10 p.m. -

Nonstop2h 49m

Sun 4/109:12 p.m. -

Nonstop2h 46m

Deal found 7/9C$ 216

Fri 16/107:10 p.m. -

Nonstop2h 48m

Mon 19/109:35 p.m. -

Nonstop2h 46m

Deal found 9/9C$ 218

Fri 13/117:36 p.m. -

1 stop15h 23m

Mon 16/119:13 p.m. -

1 stop19h 03m

Deal found 9/9C$ 221

Sat 5/126:50 p.m. -

Nonstop2h 58m

Fri 11/123:51 p.m. -

1 stop7h 03m

Deal found 9/9C$ 225

Fri 23/104:30 p.m. -

1 stop4h 30m

Mon 26/106:50 p.m. -

1 stop5h 05m

Deal found 7/9C$ 237

Sat 31/105:25 a.m. -

1 stop5h 00m

Mon 2/116:30 a.m. -

1 stop4h 25m

Deal found 6/9C$ 244

Fri 23/104:30 p.m. -

1 stop4h 30m

Tue 27/105:35 a.m. -

2 stops7h 25m

Deal found 6/9C$ 245

Sat 10/103:37 p.m. -

1 stop5h 48m

Sun 18/109:12 p.m. -

Nonstop2h 46m

Deal found 6/9C$ 248

Sat 31/102:27 p.m. -

1 stop18h 55m

Mon 2/112:59 p.m. -

Nonstop2h 41m

Deal found 7/9C$ 250

Mon 9/119:40 a.m. -

1 stop4h 15m

Wed 11/114:40 p.m. -

2 stops14h 20m

Deal found 7/9C$ 252

Find flight deals from Los Angeles to Seattle

Round-trip from	C$ 186
One-way from	C$ 97
Popular in	June
Cheapest in	March
Average price	C$ 353
Good round-trip deal	C$ 362 or less
Good one-way deal	C$ 235 or less

Frontier
6/10-13/10
1 total stop
8h 15m total
Los Angeles to Seattle

Search Deals

Frontier
10/10-31/12
Nonstop
3h 10m total
Los Angeles to Seattle

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (C$ 53 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 14 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from Los Angeles to Seattle/Tacoma Intl.

Search Deals

Price to beat on a one-way flight from Los Angeles to Seattle/Tacoma Intl.

Search Deals

Cheapflights Fare Finder

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

Cheapest round-trip

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Mon 19/10

4:30 p.m.-9:00 p.m.

1 stop4h 30m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 116

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Thu 29/10

4:30 p.m.-9:00 p.m.

1 stop4h 30m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 116

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Sun 18/10

5:35 a.m.-10:55 a.m.

1 stop5h 20m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 123

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Mon 2/11

6:35 p.m.-12:55 a.m.

1 stop6h 20m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 123

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Tue 29/12

7:00 p.m.-9:59 p.m.

Nonstop2h 59m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 150

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Mon 8/3

9:50 a.m.-12:40 p.m.

Nonstop2h 50m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 150

Quickest round-trip

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Fri 16/10

7:10 p.m.-9:58 p.m.

Nonstop2h 48m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 150

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Fri 19/2

7:24 p.m.-10:20 p.m.

Nonstop2h 56m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 150

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Sun 22/11

7:05 a.m.-10:05 a.m.

Nonstop3h 00m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 150

Los AngelesSeattle

LAX Los Angeles - SEA Seattle/Tacoma Intl

LAXSEA

Los Angeles

Sun 18/10

7:05 a.m.-10:00 a.m.

Nonstop2h 55m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 150

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

Showing 1-10 of 23 resultsSorted by cheapest first

Best time to book a flight from Los Angeles to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Los Angeles with our price prediction graph.

LAX-SEA

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Los Angeles to Seattle

Prices

Airlines

Delays

How far ahead should I book a flight from Los Angeles to Seattle?

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Los Angeles to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Los Angeles to Seattle?

Currently, March is the cheapest month in which you can book a flight from Los Angeles to Seattle (average of C$ 281). Flying from Los Angeles to Seattle in June is currently the most expensive (average of C$ 448). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LAX to SEA?

One of the essential ways to save on airfare from Los Angeles to Seattle is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 26% on airfare.

How much does it cost to fly round-trip from Los Angeles to Seattle?

Airfare is below average for this route at the moment.

Los Angeles to Seattle flights typically cost between C$ 266 and C$ 469 in October.
The cheapest round-trip price found within the last 5 days was C$ 186 on Multiple Airlines (6 Oct-13 Oct).

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with Frontier from Los Angeles to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Frontier

5.6

Fair

2,611 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Chase,Nov 2025

SLC - SEA

Worst part was not frontiers fault but being stuck on the tarmac for an hour at our arrival destination because of another planes issue and the lack of clear communication (said from the pilot himself)

Frontier

5.6

Fair

2,611 reviews

Frontier

5.6

Fair

2,611 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Chase,Nov 2025

SLC - SEA

Related info for your journey

What airports do I use to fly from Los Angeles to Seattle?
You will need to book a flight from Los Angeles to Seattle/Tacoma Intl if you want to fly from Los Angeles to Seattle. At least 1 airline has flights from Los Angeles (LAX) to Seattle/Tacoma Intl (SEA) on a regular basis. There are 61 flights to Seattle from the Los Angeles airport per day. If you manage to book one that is nonstop, then you can expect the flight time from LAX to SEA to be around 2h 49m.
How popular is this Los Angeles to Seattle flight route?
Within the past month, 6 users have taken a look at flights from Los Angeles Los Angeles to Seattle/Tacoma Intl.
How long is the flight from Los Angeles to Seattle?
For as low as C$ 216, Alaska Airlines can have you in Seattle from Los Angeles in 2h 48m. There are 1535 km between Los Angeles and Seattle. Generally, flights for this route are direct.
What is the cheapest airline to fly from Los Angeles to Seattle round-trip?
According to our current data, Frontier (C$ 162), offers the cheapest pricing from Los Angeles to Seattle. This flight start at 53% lower than the current average price 3 months from now.
What are the most reliable airlines from Los Angeles to Seattle?
The top 3 most reliable airlines when flying from Los Angeles to Seattle are Frontier (93%), Volaris (93%) and WestJet (92%).
What are the cheapest flights from Los Angeles to Seattle?
The cheapest flight price from Los Angeles to Seattle is C$ 158. On average you can expect to pay C$ 313. The most popular route, (Los Angeles - Seattle/Tacoma Intl), can usually be booked for C$ 186.
Can I find deals for flights from Los Angeles to Seattle that include hotel bookings?
Yes. In addition to deals on Los Angeles to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Los Angeles to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Los Angeles to Seattle.
Can I find deals for business class flights from Los Angeles to Seattle?
Yes. Cheapflights offers flight deals from Los Angeles to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Los Angeles to Seattle?
Currently, March is the cheapest month in which you can book a flight from Los Angeles to Seattle (average of C$ 281). Flying from Los Angeles to Seattle in June is currently the most expensive (average of C$ 448). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

SeaTac

Kent

Mukilteo

Leavenworth

Tacoma

Renton

Cashmere

Lynnwood

Ellensburg

Tukwila

Olympia

Marysville

Federal Way

Kirkland

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to Washington

Flights by cabin class

Other flight options

Other flights from Los Angeles

Popular flights

Seattle flight routes

Alternative routes for Los Angeles to Seattle

San Diego to Seattle flights

San Francisco to Seattle flights

Los Angeles to Portland flights

Los Angeles to Bellingham flights

Las Vegas to Seattle flights

San Diego to Bellingham flights

Las Vegas to Bellingham flights

Top airline flying from Los Angeles to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Frontier	CheapestC$ 162	AverageC$ 674	FlexibilityNo cancel fee	On-time62%	Search Frontier flights

Fly with Cheapflights

How does Cheapflights help users find flights from Los Angeles to Seattle?

Cheapflights helps you search for flights from Los Angeles to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Los Angeles to Seattle?

Cheapflights simply makes it quick and affordable to book flights from Los Angeles to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Los Angeles to Seattle with no change fees?

Yes, we can. To see specific flights from Los Angeles to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Los Angeles to Seattle become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Los Angeles to Seattle from C$ 97

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Los Angeles to Seattle

Cheapest flights from Los Angeles to SeattleExplore the most affordable flight options available from Los Angeles to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Explore the most affordable flight options available from Los Angeles to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from Los Angeles to SeattleDiscover carefully curated flight deals from Los Angeles to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Discover carefully curated flight deals from Los Angeles to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Direct flights from Los Angeles to SeattleExplore direct flight options from Los Angeles to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.

Explore direct flight options from Los Angeles to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.

Last-minute flights from Los Angeles to SeattleDiscover last-minute flight deals from Los Angeles to Seattle. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from Los Angeles to Seattle. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Los Angeles to SeattleSearch for one-way flight options from Los Angeles to Seattle. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Search for one-way flight options from Los Angeles to Seattle. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Find flight deals from Los Angeles to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

Best time to book a flight from Los Angeles to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Los Angeles with our price prediction graph.

Cheapflights Insights

How far ahead should I book a flight from Los Angeles to Seattle?

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Los Angeles to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Los Angeles to Seattle?

What is the cheapest time of day to fly from LAX to SEA?

One of the essential ways to save on airfare from Los Angeles to Seattle is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 26% on airfare.

How much does it cost to fly round-trip from Los Angeles to Seattle?

Airfare is below average for this route at the moment.

Los Angeles to Seattle flights typically cost between C$ 266 and C$ 469 in October.The cheapest round-trip price found within the last 5 days was C$ 186 on Multiple Airlines (6 Oct-13 Oct).

Weekly flight availability from Los Angeles to Seattle

The most flights from LAX to SEA are scheduled on a Tuesday (108 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (41 on average).

How often are flights from Los Angeles to Seattle delayed?

About 11% of weekly flights between Los Angeles and Seattle have experienced delays in the past year, with the average delay time being 144 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

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

Tuesday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, United Airlines has had the lowest number of delays on this route, with just 6% of flights being delayed.

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with Frontier from Los Angeles to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airports do I use to fly from Los Angeles to Seattle?

How popular is this Los Angeles to Seattle flight route?

How long is the flight from Los Angeles to Seattle?

What is the cheapest airline to fly from Los Angeles to Seattle round-trip?

What are the most reliable airlines from Los Angeles to Seattle?

What are the cheapest flights from Los Angeles to Seattle?

Can I find deals for flights from Los Angeles to Seattle that include hotel bookings?

How can I find direct flights from Los Angeles to Seattle?

Can I find deals for business class flights from Los Angeles to Seattle?

What is the cheapest month to book a flight from Los Angeles to Seattle?

Travelling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Los Angeles to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Washington

Book a non-stop flight to one of these other cities located in Washington.

Search flights from Los Angeles to Seattle by cabin class

Find flights from Los Angeles to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Los Angeles and Seattle flights

Browse other Los Angeles and Seattle flight options. Last updated on 10 September 2026.

Other flights from Los Angeles

Browse through other flights departing from Los Angeles. Flights are based on user searches made on Cheapflights and were last updated on 10 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Seattle

Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 September 2026.

Top airline flying from Los Angeles to Seattle

Fly with Cheapflights

How does Cheapflights help users find flights from Los Angeles to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Los Angeles to Seattle?

Cheapest flights from Los Angeles to Seattle
Explore the most affordable flight options available from Los Angeles to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from Los Angeles to Seattle
Discover carefully curated flight deals from Los Angeles to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Direct flights from Los Angeles to Seattle
Explore direct flight options from Los Angeles to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.

Last-minute flights from Los Angeles to Seattle
Discover last-minute flight deals from Los Angeles to Seattle. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Los Angeles to Seattle
Search for one-way flight options from Los Angeles to Seattle. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Los Angeles to Seattle flights typically cost between C$ 266 and C$ 469 in October.
The cheapest round-trip price found within the last 5 days was C$ 186 on Multiple Airlines (6 Oct-13 Oct).