$552 Cheap Flights from Ontario (ONT) to Busan (PUS)

View $552 flight on Wed, Apr 15, 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Gimhae Airport (PUS)

Cheap Flights from Ontario to Busan (ONT-PUS)

Prices were available within the past 7 days and start at $552 for one-way flights and $929 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Airlines
Sun, May 10 - Sun, May 24
ONT
Ontario
PUS
Busan
$929 Roundtrip, found 1 day ago
$929
Roundtrip
found 1 day ago
Select China Airlines flight, departing Sun, May 10 from Ontario to Busan, returning Sun, May 24, priced at $929 found 1 day ago
China Airlines
Mon, Apr 27 - Thu, Apr 30
ONT
Ontario
PUS
Busan
$940 Roundtrip, found 6 days ago
$940
Roundtrip
found 6 days ago
Select China Airlines flight, departing Mon, Apr 27 from Ontario to Busan, returning Thu, Apr 30, priced at $940 found 6 days ago
China Airlines
Sun, Apr 26 - Fri, May 1
ONT
Ontario
PUS
Busan
$948 Roundtrip, found 6 days ago
$948
Roundtrip
found 6 days ago
Select China Airlines flight, departing Sun, Apr 26 from Ontario to Busan, returning Fri, May 1, priced at $948 found 6 days ago
China Airlines
Sun, Apr 26 - Sat, May 16
ONT
Ontario
PUS
Busan
$961 Roundtrip, found 5 hours ago
$961
Roundtrip
found 5 hours ago
Select China Airlines flight, departing Sun, Apr 26 from Ontario to Busan, returning Sat, May 16, priced at $961 found 5 hours ago
China Airlines
Mon, Apr 27 - Sun, May 17
ONT
Ontario
PUS
Busan
$971 Roundtrip, found 5 hours ago
$971
Roundtrip
found 5 hours ago
Select China Airlines flight, departing Mon, Apr 27 from Ontario to Busan, returning Sun, May 17, priced at $971 found 5 hours ago
China Airlines
Fri, Jan 2 - Thu, Jan 15
ONT
Ontario
PUS
Busan
$972 Roundtrip, found 2 days ago
$972
Roundtrip
found 2 days ago
Select China Airlines flight, departing Fri, Jan 2 from Ontario to Busan, returning Thu, Jan 15, priced at $972 found 2 days ago
China Airlines
Fri, Jan 2 - Wed, Jan 14
ONT
Ontario
PUS
Busan
$982 Roundtrip, found 2 days ago
$982
Roundtrip
found 2 days ago
Select China Airlines flight, departing Fri, Jan 2 from Ontario to Busan, returning Wed, Jan 14, priced at $982 found 2 days ago
Alaska Airlines
Sun, Mar 15 - Tue, Mar 24
ONT
Ontario
PUS
Busan
$1,146 Roundtrip, found 3 days ago
$1,146
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sun, Mar 15 from Ontario to Busan, returning Tue, Mar 24, priced at $1,146 found 3 days ago
Korean Air
Sat, Nov 15 - Wed, Dec 3
ONT
Ontario
PUS
Busan
$1,160 Roundtrip, found 2 days ago
$1,160
Roundtrip
found 2 days ago
Select Korean Air flight, departing Sat, Nov 15 from Ontario to Busan, returning Wed, Dec 3, priced at $1,160 found 2 days ago
Delta
Wed, Nov 5 - Sun, Nov 16
ONT
Ontario
PUS
Busan
$1,161 Roundtrip, found 2 days ago
$1,161
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Nov 5 from Ontario to Busan, returning Sun, Nov 16, priced at $1,161 found 2 days ago

Alternative airports near Busan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gimhae PUS. Cheapest option available. Flights from $1,158
PUS
Gimhae
Cheapest
Flights from $1,158

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to Gimhae Airport (PUS) cost?
Get a cheap one-way flight from $552 or cheap return flight from $929 from Los Angeles - Ontario Intl. Airport (ONT) to Gimhae Airport (PUS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to Gimhae Airport (PUS)?
The cheapest month to fly from ONT to PUS is May, when demand is low. Off-peak season is usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to Gimhae Airport (PUS)?
To find the cheapest airline that'll fly you from ONT to PUS, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Gimhae Airport (PUS)?
Direct flights from Los Angeles - Ontario Intl. Airport (ONT) to Gimhae Airport (PUS) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ONT to PUS?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a number of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Los Angeles - Ontario Intl. Airport (ONT) to Gimhae Airport (PUS)?
To avoid possible delays on the Los Angeles - Ontario Intl. Airport (ONT) to Gimhae Airport (PUS) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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 Los Angeles - Ontario Intl. Airport (ONT) to Gimhae Airport (PUS) last-minute?
Booking your flight from ONT to PUS right before your getaway is generally more expensive. But if there's some wiggle room with your travel dates and times, you could land a cheap last-minute fare.
Is it cheaper to book an ONT to PUS flight and hotel package?
You can save money by booking an ONT to PUS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your ideal flights and accommodations, consider other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Gimhae Airport (PUS)?
If you reserved your ONT to PUS flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Travel information

Origin airport
Los Angeles - Ontario Intl.
Destination airport
Gimhae
Airlines serving
China Airlines, Korean Air
Roundtrip price
$928
Distance
6008 mi

Book with confidence

Ontario to Busan Flights

The cheapest times to fly from Ontario to Busan

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 Ontario to Busan are during the month of May. You can find some of the cheapest flights from Ontario to Busan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario to Busan

Sunday is one of the best days to book for cheap flights from Ontario to Busan: 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 Ontario to Busan

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 Ontario to Busan in 2025. You can also book with separate airlines for your outbound and return journeys, from $552 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 Ontario to Busan 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 Ontario to Busan 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.

 

Ontario to Busan Flights

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*Available to One Key members.