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

View $79 flight on Sat, Oct 18, 2025Opens in a new window

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

Prices were available within the past 7 days and start at $79 for one-way flights and $136 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Oct 11 - Wed, Oct 15
SEA
Seattle
LAX
Los Angeles
$136 Roundtrip, just found
$136
Roundtrip
just found
Select United flight, departing Sat, Oct 11 from Seattle to Los Angeles, returning Wed, Oct 15, priced at $136 just found
United
Sat, Oct 11 - Sat, Oct 25
SEA
Seattle
LAX
Los Angeles
$157 Roundtrip, found 4 hours ago
$157
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Oct 11 from Seattle to Los Angeles, returning Sat, Oct 25, priced at $157 found 4 hours ago
Flights from Seattle (SEA) to Los Angeles (LAX)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Los Angeles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
954 mi
Average flight time
2 hours 47 mins

Frequently asked questions

How much is a United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Los Angeles Intl. Airport (LAX)?
Use the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines round-trip flights from $136 from SEA to LAX. Affordable one-way options from $79 are also available.**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 SEA to LAX with United Airlines?
Search for one-way or return flights to Los Angeles in January or February. You could find cheaper fares with United Airlines during these off-peak months.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to Los Angeles Intl. Airport (LAX) with United Airlines?
Look for affordable United Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to Los Angeles Intl. Airport (LAX) one to three months prior to 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 type and itinerary, the ideal 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 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 Seattle - Tacoma Intl. Airport (SEA) to Los Angeles Intl. Airport (LAX)?
Skip the layovers and fly from Seattle - Tacoma Intl. Airport (SEA) to Los Angeles Intl. Airport (LAX) on one of United Airlines's 13 weekly direct flights. Use our "Nonstop" and "Airline" filters to find the United Airlines flight that'll land at LAX at a time that suits you.
How long does it take to fly from SEA to LAX with United Airlines?
Depart Seattle - Tacoma Intl. Airport (SEA) for Los Angeles Intl. Airport (LAX) on a direct United Airlines flight, and you'll be in the skies for about 2h 47m.
Which day of the week has the most United Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to Los Angeles Intl. Airport (LAX)?
United Airlines has the most flights from Seattle - Tacoma Intl. Airport (SEA) to Los Angeles Intl. Airport (LAX) on Tuesday. With up to 2 daily departures, you'll get the most flexibility and choice on this day.
What is the earliest United Airlines flight from SEA to LAX?
The earliest flight from SEA to LAX with United Airlines departs at 6:10AM UTC-8. You'll touch down at 8:57AM UTC-8. The last United Airlines flight of the day takes off at 5:25PM UTC-8 and arrives at 8:12PM UTC-8. With around 20% fewer cancellations for early and mid-morning flights, starting your travel day early is often the best way to go.**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 Los Angeles?
When flying from Seattle - Tacoma Intl. Airport (SEA) to Los Angeles with United Airlines, you'll probably arrive at Los Angeles Intl. Airport (LAX). This is the airline's main hub in this destination. Other nearby airports like John Wayne Airport (SNA) and Los Angeles - Ontario Intl. Airport (ONT) may offer lower fares, so it's a smart idea to explore all your options on Expedia.
Why fly with United Airlines from SEA to LAX?
Travel from SEA to LAX with United Airlines and look forward to a range of perks starting with a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you could also earn OneKeyCash™* to redeem on select future travel purchases.*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 Seattle - Tacoma Intl. Airport (SEA) to Los Angeles Intl. Airport (LAX)?
United Airlines generally flies Boeing 737 MAX 8 planes for flights from Seattle - Tacoma Intl. Airport (SEA) to Los Angeles Intl. Airport (LAX). This airline also operates the Boeing 737 MAX 9 on this route. Bear in mind that aircraft type can change depending on operational requirements, so the plane you board could be different when you travel.
Can I change or cancel my United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Los Angeles Intl. Airport (LAX)?
You can usually change or cancel your flight, although there may be additional fees if you booked over 24 hours ago. Want to keep your options open? Make use of our "Changes included" or "No cancel fee" filter to find flights that won't charge you extra if you need to revise your plans. To make changes, go to "Trips," select your flight and click on "Manage Booking" for more information.

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*Available to One Key members.