$719 Cheap Flights from Ulsan (USN) to Los Angeles (LAX)

View $719 flight on Sun, Nov 16, 2025Opens in a new window

Popular airlines from Ulsan (USN) to Los Angeles Intl. (LAX)

Cheap Flights from Ulsan to Los Angeles (USN-LAX)

Prices were available within the past 7 days and start at $719 for one-way flights and $876 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Thu, Oct 30 - Sun, Nov 9
USN
Ulsan
LAX
Los Angeles
$876 Roundtrip, found 3 days ago
$876
Roundtrip
found 3 days ago
Select Korean Air flight, departing Thu, Oct 30 from Ulsan to Los Angeles, returning Sun, Nov 9, priced at $876 found 3 days ago
Korean Air
Sun, Nov 2 - Wed, Nov 12
USN
Ulsan
LAX
Los Angeles
$876 Roundtrip, found 3 days ago
$876
Roundtrip
found 3 days ago
Select Korean Air flight, departing Sun, Nov 2 from Ulsan to Los Angeles, returning Wed, Nov 12, priced at $876 found 3 days ago
Korean Air
Sun, Nov 2 - Fri, Nov 7
USN
Ulsan
LAX
Los Angeles
$929 Roundtrip, found 3 days ago
$929
Roundtrip
found 3 days ago
Select Korean Air flight, departing Sun, Nov 2 from Ulsan to Los Angeles, returning Fri, Nov 7, priced at $929 found 3 days ago

Frequently asked questions

How much does a flight from Ulsan Airport (USN) to Los Angeles Intl. Airport (LAX) cost?
Secure a cheap one-way flight from $719 or cheap return flight from $876 from Ulsan Airport (USN) to Los Angeles Intl. Airport (LAX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Ulsan Airport (USN) to Los Angeles Intl. Airport (LAX)?
Planning your trip for October is a great way to save, as it's the cheapest month for flights between USN and LAX. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Ulsan Airport (USN) to Los Angeles Intl. Airport (LAX)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest USN to LAX flight.
How many flights per day from Ulsan Airport (USN) to Los Angeles Intl. Airport (LAX)?
You'll need to catch a flight with a layover if you're traveling from Ulsan Airport (USN) to Los Angeles Intl. Airport (LAX). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from USN to LAX?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ulsan Airport (USN) to Los Angeles Intl. Airport (LAX)?
To avoid possible delays on the Ulsan Airport (USN) to Los Angeles Intl. Airport (LAX) route, aim to travel before 3 PM. Later flights have a 22% higher chance of being canceled.**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.
Is it cheaper to buy a plane ticket from Ulsan Airport (USN) to Los Angeles Intl. Airport (LAX) last-minute?
Booking your flight from USN to LAX just before your journey is usually more expensive. However, if you're flexible with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book an USN to LAX flight and hotel package?
Opting for an USN to LAX flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our extensive range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ulsan Airport (USN) to Los Angeles Intl. Airport (LAX)?
If you reserved your USN to LAX flight within the last 24 hours, you may be able to cancel or modify it at no cost. 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 if you'd like more information.

Travel information

Travel information

Origin airport
Ulsan
Destination airport
Los Angeles Intl.
Roundtrip price
$876
Distance
5942 mi

Book with confidence

Book with confidence

Ulsan to Los Angeles Flights

The cheapest times to fly from Ulsan to Los Angeles

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 Ulsan to Los Angeles are during the month of October. You can find some of the cheapest flights from Ulsan to Los Angeles with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Ulsan to Los Angeles: 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 Ulsan to Los Angeles

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 Ulsan to Los Angeles in 2025. You can also book with separate airlines for your outbound and return journeys, from $719 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 Ulsan to Los Angeles 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 Ulsan to Los Angeles 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.

 

Ulsan to Los Angeles Flights

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*Available to One Key members.