$70 Cheap Flights from Los Angeles (LAX) to Seattle (SEA)

View $70 flight on Sat, Nov 1, 2025Opens in a new window

Popular airlines from Los Angeles Intl. (LAX) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Los Angeles to Seattle (LAX-SEA)

Prices were available within the past 7 days and start at $70 for one-way flights and $133 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Oct 25 - Sat, Oct 25
LAX
Los Angeles
SEA
Seattle
$133 Roundtrip, found 2 hours ago
$133
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sat, Oct 25 from Los Angeles to Seattle, returning Sat, Oct 25, priced at $133 found 2 hours ago
Frontier Airlines
Sat, Aug 16 - Sat, Aug 23
LAX
Los Angeles
SEA
Seattle
$139 Roundtrip, just found
$139
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Aug 16 from Los Angeles to Seattle, returning Sat, Aug 23, priced at $139 just found
Frontier Airlines
Fri, Sep 19 - Sat, Sep 20
LAX
Los Angeles
SEA
Seattle
$144 Roundtrip, just found
$144
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Sep 19 from Los Angeles to Seattle, returning Sat, Sep 20, priced at $144 just found
Frontier Airlines
Sat, Oct 11 - Sat, Oct 18
LAX
Los Angeles
SEA
Seattle
$148 Roundtrip, found 2 hours ago
$148
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sat, Oct 11 from Los Angeles to Seattle, returning Sat, Oct 18, priced at $148 found 2 hours ago
Frontier Airlines
Thu, Sep 11 - Fri, Sep 19
LAX
Los Angeles
SEA
Seattle
$149 Roundtrip, just found
$149
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Sep 11 from Los Angeles to Seattle, returning Fri, Sep 19, priced at $149 just found
United
Sat, Sep 6 - Sat, Sep 6
LAX
Los Angeles
SEA
Seattle
$152 Roundtrip, found 3 days ago
$152
Roundtrip
found 3 days ago
Select United flight, departing Sat, Sep 6 from Los Angeles to Seattle, returning Sat, Sep 6, priced at $152 found 3 days ago
United
Sat, Aug 30 - Thu, Sep 4
LAX
Los Angeles
SEA
Seattle
$153 Roundtrip, found 1 hour ago
$153
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Aug 30 from Los Angeles to Seattle, returning Thu, Sep 4, priced at $153 found 1 hour ago
Frontier Airlines
Sat, Aug 30 - Sun, Aug 31
LAX
Los Angeles
SEA
Seattle
$154 Roundtrip, just found
$154
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Aug 30 from Los Angeles to Seattle, returning Sun, Aug 31, priced at $154 just found
American Airlines
Sat, Nov 8 - Sat, Nov 15
LAX
Los Angeles
SEA
Seattle
$157 Roundtrip, found 6 days ago
$157
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Nov 8 from Los Angeles to Seattle, returning Sat, Nov 15, priced at $157 found 6 days ago
Frontier Airlines
Sat, Sep 6 - Sat, Sep 13
LAX
Los Angeles
SEA
Seattle
$158 Roundtrip, just found
$158
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Sep 6 from Los Angeles to Seattle, returning Sat, Sep 13, priced at $158 just found
Flights from Los Angeles (LAX) to Seattle (SEA)
Origin airport
Los Angeles Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$133
Distance
954 mi

Los Angeles to Seattle Flights

The cheapest times to fly from Los Angeles to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Los Angeles to Seattle are during the month of October. You can find some of the cheapest flights from Los Angeles to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Los Angeles to Seattle

Sunday is one of the best days to book for cheap flights from Los Angeles to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Los Angeles to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Los Angeles to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $70 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Los Angeles to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Los Angeles to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA) cost?
You can find cheap return tickets from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA) starting at $129. Book your seat and get ready for takeoff. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving LAX on June 14 2025 and touching down at SEA. The price was last updated on May 27 2025 and has not changed since.
What is the cheapest month to fly from LAX to SEA?
The cheapest flights from LAX to SEA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA)?
Take your pick of 6 carriers offering direct routes from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA). They are:

  • Alaska Airlines
  • Delta Air Lines
  • American Airlines
  • United Airlines
  • Frontier Airlines

What is the cheapest airline that flies from LAX to SEA?
Right now, the cheapest carrier operating one-way flights from LAX to SEA is Frontier Airlines. You can book a seat on this route from $65. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from LAX on August 16 2025. Prices were last updated on May 27 2025 and have not changed since.
How many flights per day from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA)?
With an average of 20 direct flights departing from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA) daily, you’ll be up in the air in no time.
What are the most popular departure times for flights from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA)?
More people fly between LAX and SEA at 2 PM than at any other time. Rather skip the crowds? Pick a flight outside the busiest times and you’re likely to save on your ticket as well.
What day of the week has the most flights from LAX to SEA?
Jet off on a Thursday if you’re looking for the largest selection of flights from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA).
What is the earliest flight from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA)?
Los Angeles Intl. Airport (LAX)’s first flight to Seattle - Tacoma Intl. Airport (SEA) is at approximately 7:00AM UTC-8. With a travel time of 3h 5m, you’ll land at around 10:05AM UTC-8.
How long does it take to fly from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA)?
The average flight duration from LAX to SEA is 2 hours and 57 minutes, covering a total distance of 960 mi.
What airline has the least delays from LAX to SEA?
Consider traveling with China Eastern Airlines if you’d like to fly straight from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA) without any holdups. This carrier has the best track record for punctuality, with an on-time performance of 100%. Want to get notified of any changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA)?
To land at Seattle - Tacoma Intl. Airport (SEA) without delays, select a flight that leaves from Los Angeles Intl. Airport (LAX) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Seattle from Los Angeles Intl. Airport (LAX)?
You can arrive at Seattle - Tacoma Intl. Airport (SEA) or Snohomish County - Paine Field Airport (PAE) when traveling to Seattle on a direct flight from Los Angeles Intl. Airport (LAX).
Is it cheaper to buy a plane ticket from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Waiting until just before your trip to book a ticket from LAX to SEA generally means paying more. Although you may find some last-minute offers, they’re not always guaranteed. Keep your travel schedule open for a better chance of landing a bargain.
Is it cheaper to book a LAX to SEA flight and hotel package?
You’ll generally save money by booking a LAX to SEA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s easy to manage it all in one convenient place. Once you’ve chosen your preferred accommodations and flights, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA)?
If you booked your LAX to SEA flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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