$79 Cheap United flights Los Angeles (LAX) to Seattle (SEA)

View $79 flight on Sat, Oct 25, 2025Opens in a new window

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$79 Cheap United flights Los Angeles (LAX) to Seattle (SEA)

Prices were available within the past 7 days and start at $79 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Nov 8 - Tue, Nov 11
LAX
Los Angeles
SEA
Seattle
$157 Roundtrip, found 3 hours ago
$157
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Nov 8 from Los Angeles to Seattle, returning Tue, Nov 11, priced at $157 found 3 hours ago
United
Sat, Nov 8 - Tue, Nov 11
LAX
Los Angeles
SEA
Seattle
$165 Roundtrip, found 3 hours ago
$165
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Nov 8 from Los Angeles to Seattle, returning Tue, Nov 11, priced at $165 found 3 hours ago
United
Tue, Nov 4 - Tue, Nov 11
LAX
Los Angeles
SEA
Seattle
$167 Roundtrip, found 1 hour ago
$167
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Nov 4 from Los Angeles to Seattle, returning Tue, Nov 11, priced at $167 found 1 hour ago
United
Wed, Sep 24 - Sat, Oct 4
LAX
Los Angeles
SEA
Seattle
$170 Roundtrip, found 7 hours ago
$170
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Sep 24 from Los Angeles to Seattle, returning Sat, Oct 4, priced at $170 found 7 hours ago
United
Sat, Nov 15 - Tue, Nov 18
LAX
Los Angeles
SEA
Seattle
$176 Roundtrip, found 7 hours ago
$176
Roundtrip
found 7 hours ago
Select United flight, departing Sat, Nov 15 from Los Angeles to Seattle, returning Tue, Nov 18, priced at $176 found 7 hours ago
United
Tue, Oct 21 - Sat, Oct 25
LAX
Los Angeles
SEA
Seattle
$177 Roundtrip, found 1 hour ago
$177
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Oct 21 from Los Angeles to Seattle, returning Sat, Oct 25, priced at $177 found 1 hour ago
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
Popular airline
Alaska Airlines
Distance
954 mi
Average flight time
2 hours 44 mins

Frequently asked questions

How much is a United Airlines flight from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA)?
Landing cheap one-way United Airlines flights from LAX to SEA from $79 on Expedia is easy — just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from $157 for your next break.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from LAX to SEA with United Airlines?
January is one of the least expensive months to jet away to Seattle with United Airlines. You could also find great deals on one-way and round-trip tickets in February.
What is the cheapest time to book flights from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA) with United Airlines?
Search for cheap United Airlines flights from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA) one to three months ahead of your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and itinerary, the best day to book a domestic flight is usually Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA)?
United Airlines operates direct flights from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA), with 13 weekly departures. Simply use the "Nonstop" and "Airline" filters while searching on Expedia to find all direct United Airlines flights to SEA.
How long does it take to fly from LAX to SEA with United Airlines?
From takeoff till touchdown, a nonstop United Airlines flight from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA) takes around 3h.
Which day of the week has the most United Airlines flights from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA)?
United Airlines operates the most flights from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA) on Saturday. With up to 2 daily departures, you'll get the most choice and flexibility on this day.
What is the earliest United Airlines flight from LAX to SEA?
Departing LAX at 11:00AM UTC-8, the earliest United Airlines flight to SEA lands at 2:00PM UTC-8. Traveling early means you'll be less likely to experience cancellations.* Prefer to travel later? The last United Airlines flight from LAX to SEA departs at 7:30PM UTC-8 and touches down at 10:30PM UTC-8.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Seattle?
Many United Airlines flights from Los Angeles Intl. Airport (LAX) to Seattle land at Seattle - Tacoma Intl. Airport (SEA). This is the airline's main gateway here. It's worth checking out Expedia for flights to nearby airports like Snohomish County - Paine Field Airport (PAE), as prices may be cheaper.
Why fly with United Airlines from LAX to SEA?
With a rewarding loyalty program, United Airlines is a popular choice for many travelers flying from LAX to SEA. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA)?
For the Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA) route, United Airlines typically uses Boeing 737 MAX 9 and Boeing 737 MAX 8 planes. Keep in mind that last-minute changes can occur for operational purposes, so your flight may be on a different aircraft.
Can I change or cancel my United Airlines flight from Los Angeles Intl. Airport (LAX) to Seattle - Tacoma Intl. Airport (SEA)?
Depending on the type of fare you purchased, a fee typically applies if you cancel or change your flight more than 24 hours after it has been confirmed. To secure flexible fares, select our "No cancel fee" or "Changes included" filter when you look for flights. For additional information on changing or canceling your reservation, visit "Trips," select your flight and tick "Manage Booking."

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