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Cheap Flights from Ontario to Seoul (ONT-ICN)
Prices were available within the past 7 days and start at $556 for one-way flights and $950 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Frequently asked questions
Travel information
Travel information
Origin airport | Los Angeles - Ontario Intl. |
Destination airport | Incheon Intl. |
Airlines serving | Air Canada, Alaska Airlines, American Airlines, China Airlines, Delta, Hawaiian Airlines, Japan Airlines, Korean Air, United |
Roundtrip price | $949 |
Distance | 6009 mi |
Book with confidence
Book with confidence
The cheapest times to fly from Ontario to Seoul
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 Seoul are during the month of September. You can find some of the cheapest flights from Ontario to Seoul with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Ontario to Seoul
Sunday is one of the best days to book for cheap flights from Ontario to Seoul: 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 Seoul
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 Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $556 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 Seoul 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 Seoul 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.
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Flights
- Alaska Airlines Ontario (ONT) to Portland (PDX) flights
- Delta Ontario (ONT) to Salt Lake City (SLC) flights
- Frontier Airlines Ontario (ONT) to Denver (DEN) flights
- Korean Air Washington (IAD) to Seoul (ICN) flights
- Korean Air New York (JFK) to Seoul (ICN) flights
- Korean Air Honolulu (HNL) to Seoul (ICN) flights
- Volaris Ontario (ONT) to Guadalajara (GDL) flights
- American Airlines Ontario (ONT) to Newark Liberty Intl. Airport (EWR) flights
- Alaska Airlines Ontario (ONT) to Honolulu (HNL) flights
- China Airlines Ontario (ONT) to Manila (MNL) flights
- American Airlines Ontario (ONT) to Phoenix (PHX) flights
- Alaska Airlines Ontario (ONT) to Seattle (SEA) flights
- American Airlines Ontario (ONT) to New York (JFK) flights
- Flights from Fullerton Municipal
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- Flights from Long Beach Municipal
- Flights from Palmdale Regional
- Flights from French Valley
- Flights from Hollywood Burbank
- Flights from San Bernardino Intl.
- Flights from General William J. Fox Airfield
- Flights from John Wayne
- Flights from Los Angeles Intl.
- Aeromexico
- JetBlue Airways
- American Airlines
- Volaris
- Japan Airlines
- Alaska Airlines
- Air Canada
- avianca
- Delta
- China Airlines
- Qatar Airways
- Hawaiian Airlines
- Korean Air
- British Airways
- United
- Frontier Airlines
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- Flights from Dallas (DAL) to Seoul (ICN)
- Flights from Newark Liberty Intl. Airport (EWR) to Seoul (ICN)
- Flights from Boston (BOS) to Seoul (ICN)
- Flights from Chicago (ORD) to Seoul (ICN)
- Flights from Los Angeles (LAX) to Seoul (ICN)
- Flights from Honolulu (HNL) to Seoul (ICN)
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- Flights from Seattle (SEA) to Seoul (ICN)
- Flights from Washington (IAD) to Seoul (ICN)
- Flights from Minneapolis (MSP) to Seoul (ICN)
- Flights from New York (JFK) to Seoul (ICN)
- Flights from Tokyo (NRT) to Seoul (ICN)
- Flights from Washington (DCA) to Seoul (ICN)
- Flights from Los Angeles (LAX) to Tokyo (NRT)
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- Flights from Los Angeles (LAX) to Chicago (ORD)
- Flights from Los Angeles (LAX) to New York (NYC)
- Flights from Ontario (ONT) to Guadalajara (GDL)
- Flights from Los Angeles (LAX) to London (LHR)
- Flights from Ontario (ONT) to Newark Liberty Intl. Airport (EWR)
- Flights from Los Angeles (LAX) to Honolulu (HNL)
- Flights from Ontario (ONT) to Honolulu (HNL)
- Flights from Los Angeles (LAX) to Dallas (DFW)
- Flights from Ontario (ONT) to Manila (MNL)
- Flights from San Francisco (SFO) to Manila (MNL)
- Flights from Los Angeles (LAX) to Manila (MNL)
- Flights from Ontario (ONT) to Phoenix (PHX)
- Flights from Los Angeles (LAX) to San Francisco (SFO)
- Flights from Los Angeles (LAX) to Miami (MIA)
- Flights from Los Angeles (LAX) to Seattle (SEA)
- Flights from Ontario (ONT) to Seattle (SEA)
- Flights from Ontario (ONT) to Houston (IAH)
- Flights from Chicago (ORD) to Los Angeles (LAX)
- Flights from Houston (IAH) to Los Angeles (LAX)
- Flights from Atlanta (ATL) to Los Angeles (LAX)
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- Flights from Ontario (ONT) to New York (JFK)
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